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STV0676
CMOS Digital Camera Co-processor
The STV0676 co-processor combined with ST CMOS image sensors offers highly integrated imaging products which deliver USB 1.1, RGBpreview, YCrCb or M-JPEG digital video data at up to 30 frames per second. The STV0676 interfaces to CIF (352 x 288) or VGA (640 x 480) image sensor and performs: - pixel defect correction, - auto exposure, auto gain, - auto white balance, anti-aliasing, anti-flicker, - colour interpolation, colour balance, - gamma correction, - M-JPEG compression. STV0676 chipsets are supported by a fully-featured USB driver. This provides a wide range of user definable settings for optimum camera setup and operation. Isochronous data transfer over USB guarantees video quality at all times, irrespective of the number of other peripherals. Low power consumption, highly integrated designs and simple support circuitry enable OEMs to design low cost, low power, camera products for high volume consumer market places. STMicroelectronics offers camera manufacturers rapid-to-market camera products supported by comprehensive reference designs, software drivers and technical backup.
KEY FEATURES
s Real-time video - up to 30fps VGA s USB 1.1 compliant s Motion-JPEG compression s Isochronous USB data transfer s Direct Show driver support s Programmable vendor ID s RGB-preview, YCrCb or M-JPEG video output s Automatic exposure, gain and white balance
APPLICATIONS
USB camera: - Biometric identification, toys and games Embedded applications support: - PDA, notebook PC, mobile phone - Set top box, and security applications
Typical application
lens + IR filter CMOS Sensor CIF or VGA image array STV0676
Video Processor
Video Compression
USB Interface
USB Cable to host PC
MIcro Processor
EEPROM
October 2002
ADCS 7280926C
1/21
STV0676
Table of contents
Chapter 1
1.1 1.2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
STV0676 co-processor general description ......................................................................... 5 Video processor (VP) ........................................................................................................... 5 1.2.1 Sensor interface ................................................................................................... 5 1.2.2 Video processor functions .................................................................................... 6
1.3 1.4 1.5 1.6 1.7
Auto exposure and gain control ........................................................................................... 7 Defect correction .................................................................................................................. 7 Video compression (VC) engine .......................................................................................... 7 Control processor ................................................................................................................. 7 Power management ............................................................................................................. 7
Chapter 2
2.1 2.2 2.3 2.4
External interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
USB interface ....................................................................................................................... 8 Mode selection ..................................................................................................................... 9 Selecting VID and PID via the digiport ................................................................................. 9 Serial EEPROM ................................................................................................................. 10 2.4.1 EEPROM format and contents ........................................................................... 11 2.4.2 2.4.3 Strings ................................................................................................................ 11 CheckSum ......................................................................................................... 12
2.5 2.6 2.7
I2C slave mode .................................................................................................................. 12 Digiport ............................................................................................................................... 12 General purpose input and output ...................................................................................... 12
Chapter 3
3.1 3.2
STV0676 application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
USB webcam ..................................................................................................................... 13 Embedded camera ............................................................................................................. 13
Chapter 4
4.1 4.2
Detailed specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
STV0676 absolute maximum ratings ................................................................................. 14 STV0676 AC/DC characteristic .......................................................................................... 14
Chapter 5
5.1
Pinout and pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
STV0676 pin details ........................................................................................................... 15
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STV0676 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Package Details STV0676 64pin TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Reference design and evaluation kits (RDK's and EVK's) . . . . . . . . . . . . . . . .20 Ordering details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Design issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
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STV0676
Document revision history
Table 1 : Document revision history Revision
1.0 1.1
Date
17/01/01 22/01/01 First Product preview release Information added on - Microport - Serial EEPROM - digiport - Slave I2C implementation - I2C Register map
Comments
1.2 A
01/02/01 07/03/01
Microport description updated Details of existing STV0672 register map removed Added reference to VV6411 sensor
B C
10/10/01 13/08/02
Document reformatted with ST template Change from a chipset datasheet to co-processor only. Update of driver reference and ordering details.
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Revision C
STV0676
Overview
1
1.1
Overview
STV0676 co-processor general description
The STV0676 is a digital video processor requiring no external RAM and a minimum of passive support components to provide a complete USB camera. STV0676 accepts raw digital video data from a ST VGA or CIF format CMOS sensor and is capable of transferring the resulting JPEG data to a host PC over USB at rates up to 30 frames per second VGA. The internal STV0676 architecture consists of a number of separate functional blocks:
q q q q
Video processor (VP) Video compressor (VC) USB control block General purpose controller
The VP controls the sensor and processes the raw RGB pixel data into YCbCr images. This YCbCr data is compressed by the VC. The USB control block transfers the compressed data to the host PC.
1.2
1.2.1
Video processor (VP)
Sensor interface
The VP interfaces directly to the image sensor. The sensor interface comprises:
q q q q q
5-wire data bus SDATA[4:0] for receiving both video data and embedded timing references, 2-wire serial control interface (SSDA, SSCL), sensor clock SCLK reset circuitry sensor suspend control
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Overview
Figure 1: Block diagram of STV0676 video processor module
STV0676
Video Processor
SDATA[4:0] SSCL SSDA
Video Compression (VC) Engine
Compressed Data
CIF/VGA Sensor
RESET_N SCLK SUSPEND General purpose housekeeper functions including AEC, AGC and AWB
USB port Stream Control + FIFOs
USB core /glue logic and command FIFO's
D+ D-
10
ROM
SDA SCL RESET
RAM
Digiport
8052 Core
Clocks + PLL
12MHz XTAL
10
STV0676
GPIO/mode select Ext. 2 Interrupts I C Interface
1.2.2
Video processor functions
STV0676 provides a master clock SCLK to the camera module. Each 10-bit pixel value generated by the sensor is transmitted across the 5 wire databus SDATA[4:0] as a pair of sequential 5-bit nibbles, most significant nibble first. Codes representing the start and end frames and the start and end of lines are embedded within the video data stream to allow the video processor to synchronise with the video data stream. The video processing engine performs the following functions on incoming data:
q q q q q
full colour restoration at each pixel site from Bayer-patterned input data, matrixing/gain on each colour channel for colour purity, peaking for image clarity, gamma correction, colour space conversion from raw RGB to YCbCr[4:2:2].
The 2-wire sensor serial interface (SSDA and SSCL) provides control of sensor configuration.
Note:
the MSBit SDATA5 of the databus is unused in the current application but it will support future sensors where a 12bit ADC architecture may be used.
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Revision C
STV0676
Overview
1.3
Auto exposure and gain control
The STV0676 automatically controls the sensor exposure, which is evaluated (and, where necessary modified) once per frame, where a frame consists of 2 video fields. The video fields are identical in length, that is, they do not contain any of the half line detail of the analogue video standards like CCIR or NTSC. Two fields per frame are required by the internal sensor video timing model. Integration time, sensor analogue gain and STV0676 digital gain are all used to control the overall exposure. The STV0676 exposure algorithm uses an asymptotic approach in calculating the change required in the present exposure value to approach the requested exposure target.
1.4
Defect correction
STV0676 automatically detects and corrects pixel defects without the need for any additional components or sensor calibration procedures. This greatly simplifies camera assembly and test when compared with previous EEPROM-based defect correction schemes. The pixel defect correction scheme ensures that the STV0676 + ST CMOS sensor appears as a `defect free' chipset.
1.5
Video compression (VC) engine
The video compression engine performs 3 main functions:
q
up scaling of input YCbCr 4:2:2 video stream from the VP (typically to scale from QVGA to CIF image formats), compression and encoding of YCbCr stream into Motion-JPEG (M-JPEG) format, USB bandwidth monitoring.
q q
The data stream from the VP can be up to VGA size. The scaler in VC can downsize this image. Once scaled the video stream is then converted into M-JPEG format. M-JPEG simply treats video as a series of JPEG still images. The conversion is realised via a sequential DCT (discrete cosine transform) with Huffman encoding. After transfer over USB, the M-JPEG stream is decoded in the device driver running on the host. The VC module is capable of compression ratios of up to 100:1 although this is scene-dependent. Image framerate produced by the STV0676 chipset is fixed and furthermore the available USB bandwidth is also fixed (within the software driver). The VC module varies the compression ratio to match the fluctuating input video data rates to the available USB bandwidth and required framerate. The final stage of the VC block manages the data transfer from the local VC FIFO store to the USB core. STV0676 performs this management automatically by employing long-term (frame-level) and short-term (block-level) compression management.
1.6
Control processor
The embedded 8052 microprocessor core controls the data flow through the major sub blocks within STV0676 as well as the I2C communications to reconfigure the VP corresponding to requests from the device driver.
1.7
Power management
The chipset conforms to all power requirements specified by USB Version 1.1.
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External interfaces
STV0676
2
2.1
External interfaces
USB interface
The USB interface is designed to be compliant with version 1.1 of the USB specification. The STV0676 is a low power device and is therefore suitable for connection to any USB port on a PC, self-powered hub or when connected to a bus-powered hub. The device complies with the device framework specified in Chapter 9 of the USB specification as follows:
q q q q q q q q q q
The device supports a single high power configuration (Configuration 1). Endpoint 0 is the default control endpoint and is always supported. Endpoint 0 supports all of the USB commands required by the device framework. Vendor specific commands on Endpoint 0 are used for all device control. Configuration 1 supports a single interface (interface 0). Interface 0 supports 8 alternate settings (alternates 0-7). The alternate settings support between 0 and 2 additional endpoints. Endpoint 1 is used for isochronous transfer of image data. Endpoint 3 is used for transferring status information, e.g. state of a hardware button. The endpoints are configured as follows (Table 2) in the alternate settings:
Table 2: Endpoint alternate settings
Alternate setting
0 1 2 3 4 5 6 7
Endpoint1 (isochronous)
Not present Not present 128 bytes / packet; 1 packet / frame 384 bytes / packet; 1 packet / frame 640 bytes / packet; 1 packet / frame 768 bytes / packet; 1 packet / frame 896 bytes / packet; 1 packet / frame 1023 bytes / packet; 1 packet / frame
Endpoint3 (interrupt)
Not present 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames 8 bytes / packet; 1 packet /8 frames
The best and most consistent performance in terms of image quality is always obtained in the highest bandwidth setting (alternate 7). Under some circumstances it may not be possible for the host to allocate this amount of USB bandwidth to the device. The isochronous settings reserve varying quantities of bandwidth - from 10% to 85% of USB bandwidth. The lower settings result in poor image quality due to heavy compression applied to maintain a high framerate streaming of image data, but at the same time leaving more bandwidth free for other USB devices. This is desirable if more than one camera is to be used, or if there are other isochronous peripherals connected. The device driver allows the user to specify the maximum bandwidth they wish to allocate to transfer data from the device. If the maximum specified by the user is not available, perhaps because another isochronous device has already reserved that bandwidth, then lower alternates are tried until one succeeds.
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Revision C
STV0676
External interfaces
Benchmark testing of the STV0676 indicates that 30fps CIF video (compressed) can be accommodated in 50% of USB bandwidth.
2.2
Mode selection
All USB devices report a VID, PID and power consumption as part of a standard device descriptor. The VID and PID for STV0676 can be configured by the state of the digiport bits or by using an external EEPROM. The mode selection is made using the two MODESEL pins as described in Table 3 below.
Table 3: Mode selection MODESEL[1]
0 1 0
MODESEL[0]
0 0 1
Mode of operation
USB Mode. External EEPROM fitted, therefore PID, VID and power consumption read from this source. See Section 2.4 Slave I2C mode. USB mode. Default. No external EEPROM fitted, the PID VID and power consumption data determined by digiport[7:0]. See Section 2.3 Reserved
1
1
2.3
Selecting VID and PID via the digiport
Tables 4~7 demonstrate how the VID/PID information is defined via the digiport. The current reference design for the STV0676-chipset has digiport[7:0] connected to VSS, thus the VID and PID are 16'h0553 and 16'h0140 respectively. The digiport also controls the device current consumption that is reported to the host at device enumeration.
Table 4: Basic digiport configuration digiport bit slice
[3:0] [5:4] [7:6]
function
configures the LS nibble of the PID master VID/PID select power setting
Table 5: Digiport LS nibble configuration digiport[3:0]
4'b0000 4'b0001 4'b0010 4'b0011 4'b0100 4'b0101
PID LS nibble
4'b0000 4'b0001 4'b0010 4'b0011 4'b0100 4'b0101
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External interfaces
Table 5: Digiport LS nibble configuration digiport[3:0]
4'b0110 4'b0111 4'b1000 4'b1001 4'b1010 4'b1011 4'b1100 4'b1101 4'b1110 4'b1111
STV0676
PID LS nibble
4'b0110 4'b0111 4'b1000 4'b1001 4'b1010 4'b1011 4'b1100 4'b1101 4'b1110 4'b1111
Table 6: Master VID/PID selection digiport[5:4]
2'b00 2'b01 2'b10 2'b11
VID/PID reported
16'h0553/16'h014xa 16'h0553/16'h015xa 16'h0553/16'h026xa 16'h0553/16'h017xa
a. The `x' ls nibble of the PID is defined by the value from Table 5 above
Table 7: Device power consumption indicator digiport[7:6]
2'b00 2'b01 2'b10 2'b11
current consumption reported
98mA 250mA 350mA 500mA
2.4
Serial EEPROM
STV0676 is designed to be used with a 128 or 256 byte serial I2C EEPROM. The EEPROM can be programmed with data to allow a user to fully customise the USB identity of STV0676. The configuration of this data is as follows.
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Revision C
STV0676 2.4.1 EEPROM format and contents
Table 8: EEPROM format and contents location
0 1 2 3 4 5 6 7 8 9 10 11 12 13 fixed number, must be 0x'ED fixed number, must be 0x'15 reserved, must be 0x'00 max device power (=mA/2, e.g. 400mA enter 0x'C8) VidLo, low byte of the vendor ID VidHi, highbyte of the vendor ID PidLo, low byte of the product ID PidHi, highbyte of the product ID manufacturer string offset, example below product string offset, see below interface 0 String offset reserved, must be 0x'00 reserved, must be 0x'00 checksum
External interfaces
contents
The remaining space is available for the string blocks indexed at locations 8, 9 and 10.
2.4.2
Strings
The strings referred to above (locations 8-10), are the USB string descriptors referenced from the device, configuration and interface descriptors. The value should be set to '0' if the string is not implemented or to the offset in bytes of the start of the string block in the EEPROM. The first byte of each string block is the number of the characters in the string. Subsequent bytes are the actual string, which need not include a terminating null (Table 9:).
Table 9: EEPROM device string example Location
8 16 17 18 19 20 21
Contents
Manufacturer string offset = 16 String length = 5 String text = `H' (in ascii) String text = `e' (in ascii) String text = `l' (in ascii) String text = `l' (in ascii) String text = `o' (in ascii)
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External interfaces 2.4.3 CheckSum
STV0676
The checksum is calculated by adding the byte value of EEPROM locations 0 to 12 inclusive, the low order byte of the result is stored in location 13.
2.5
I2C slave mode
STV0676 can be configured to behave as an I2C slave. This allows the device to be configured by host devices other than PCs. Details of the I2C messages supported and description of the I2C register bank are available from STMicroelectronics.
2.6
Digiport
The Digiport is a 10-bit bi-directional data port which can be used to transfer video data in or out of the device. This port can also be used to configure USB descriptor information at power up see (Section 2.3). Full details on the digiport operation and control are available from STMicroelectronics.
2.7
General purpose input and output
STV0676 provides up to 8 pins which can be used as general purpose I/O. These pins can be used to interface to led's, buzzers, switches etc.
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Revision C
STV0676
STV0676 application example
3
3.1
STV0676 application example
USB webcam
Figure 2 shows a block diagram of a basic webcam using the minimum of external components. The camera is controlled entirely through PC drivers over USB.
Note:
If required a custom USB PID/VID can be configured by the use of an EEPROM, as detailed in Section 2.3
Figure 2: Webcam block diagram
lens + IR filter CMOS Sensor CIF or VGA image array STV0676
Video Processor
Video Compression
USB Interface
USB Cable to host PC
MIcro Processor
EEPROM
3.2
Embedded camera
Figure 3 shows a block diagram of a camera intended for embedded applications, outputting JPEG, YCrCb or RGB preview over an 8bit bus, the third party electronics would control the STV0676 using I2C.
Figure 3: Embedded camera block diagram
lens + IR filter CMOS Sensor CIF or VGA image array STV0676
Video Processor
Video Compression FIFO
MIcro Processor Digiport
Third party electronics
I2C
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Detailed specifications
STV0676
4
4.1
Detailed specifications
STV0676 absolute maximum ratings
Description
Operating Temperature Storage Temperature
Range
0 to 70 -50 to 150
Unit
oC oC
4.2
STV0676 AC/DC characteristic
Parameter
VDD_CORE VDD_IO VDD_PLL I_coresuspend I_corestandby I_coreactive I_IOsuspend I_IOstandby I_IOactive I_PLLsuspend I_PLLstandby I_PLLactive VIl VIH VHYS VIl VIH VT+ VTVT VOH VOL
Description
Primary STV0676 power supply 3.3V power supply for on-chip USB transceiver and IO Analog supply to the PLL Current consumption in suspend mode Current consumption in standby mode Current consumption while active, VGA 30fps Current consumption in suspend mode Current consumption in standby mode Current consumption while active, VGA 30fps Current consumption in suspend mode Current consumption in standby mode Current consumption while active, VGA 30fps CMOS input low voltage (XTAL_IN) CMOS input high voltage (XTAL_IN) Hysteresis (XTAL_IN) CMOS input low voltage CMOS input high voltage CMOS schmitt input low to high threshold voltage CMOS schmitt input high to low threshold voltage Threshold point Output high voltage Output low voltage
Min
1.55 3.0 1.60
Typ
1.8 3.3 1.8 3 9.6 52 40 540 6.6 0.4 476 476
Max
1.95 3.6 2.0
Units
V V V A mA mA A A mA A A A
0.687 1.19 0.51 0.35VDD 0.65VDD 2.15 1.05 1.65 2.4 0.4
V V V V V V V V V V
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STV0676
Pinout and pin descriptions
5
5.1
Pinout and pin descriptions
STV0676 pin details
Figure 4: STV0676 pinout
64 1
TEST_CONF[2] TEST_CONF[1] TEST_CONF[0] PLL_VDD PLL_VSS XTAL_IN XTAL_OUT CORE_VDD CORE_VSS IO_VDD IO_VSS DIGIPORT[9] DIGIPORT[8] DIGIPORT[7] DIGIPORT[6] DIGIPORT[5]
EEPROM_SCL EEPROM_SDA USB_DP USB_DN CORE_VSS CORE_VDD IO_VSS IO_VDD RESERVED[4] RESERVED[3] RESERVED[2] MODESEL[1] RESERVED[1] RESERVED[0] MODESEL[0] IO_VSS
49 48
GPIO[7] GPIO[6] GPIO[5] GPIO[4] GPIO[3] GPIO[2] GPIO[1] GPIO[0] IO_VSS IO_VDD SW0_N SW1_N SPDN SSCL SSDA RESET_N
16 17
DIGIPORT[4] DIGIPORT[3] DIGIPORT[2] DIGIPORT[1] DIGIPORT[0] IO_VDD IO_VSS CORE_VDD CORE_VSS SENSOR_CLK SENSOR_DB[5] SENSOR_DB[4] SENSOR_DB[3] SENSOR_DB[2] SENSOR_DB[1] SENSOR_DB[0]
33 32
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Pinout and pin descriptions
Table 10: STV0676 pin description Pin Signal Type Description
STV0676
POWER SUPPLIES 4 5 8 9 10 11 22 23 24 25 39 40 49 57 58 59 60 PLL_VDD PLL_VSS CORE_VDD CORE_VSS IO_VDD IO_VSS IO_VDD IO_VSS CORE_VDD CORE_VSS IO_VDD IO_VSS IO_VSS IO_VDD IO_VSS CORE_VDD CORE_VSS INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT INPUT VDD for internal phase locked loop GND for internal phase locked loop VDD for core logic Ground for core logic VDD for pad ring Ground for pad ring VDD for pad ring Ground for pad ring VDD for core logic Ground for core logic VDD for pad ring Ground for pad ring Ground for pad ring VDD for pad ring Ground for pad ring VDD for core logic Ground for core logic
DEVICE MASTER CLOCK AND RESET 6 7 33 XTAL_IN XTAL_OUT RESET_N ANA OSC SCHMITT System clock pad System clock pad System, power-on-reset supplied by companion sensor
DIGIPORT/USB CONFIGURATION INTERFACE 12 13 14 15 16 17 18 19 20 21 DIGIPORT[9] DIGIPORT[8] DIGIPORT[7] DIGIPORT[6] DIGIPORT[5] DIGIPORT[4] DIGIPORT[3] DIGIPORT[2] DIGIPORT[1] DIGIPORT[0] BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR Digiport operation Digiport operation Digiport operation /programmable USB current consumption reported Digiport operation /programmable USB current consumption reported Digiport operation /programmable USB VID/PID Digiport operation /programmable USB VID/PID Digiport operation /programmable USB PID Digiport operation /programmable USB PID Digiport operation /programmable USB PID Digiport operation /programmable USB PID
SENSOR INTERFACE 26 SENSOR_CLK BIDIR Sensor clock
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STV0676
Table 10: STV0676 pin description Pin
27 28 29 30 31 32 34 35 36
Pinout and pin descriptions
Signal
SENSOR_DB[5] SENSOR_DB[4] SENSOR_DB[3] SENSOR_DB[2] SENSOR_DB[1] SENSOR_DB[0] SSDA SSCL SPDN
Type
INPUT INPUT INPUT INPUT INPUT INPUT 3 state 3 state BIDIR Sensor data bus [bit5] Sensor data bus [bit4] Sensor data bus [bit3] Sensor data bus [bit2] Sensor data bus [bit1] Sensor data bus [bit0] Sensor serial interface data Sensor serial interface clock
Description
Control line to sensor to select ultra low power SUSPEND mode
MISC CONTROL 37 38 SW1 _N SW0 _N INPUT INPUT Spare switch input Remote wakeup
GPIO INTERFACE/ OTHER 41 42 43 44 45 46 47 48 50 GPIO[0] GPIO[1] GPIO[2] GPIO[3] GPIO[4] GPIO[5] GPIO[6] GPIO[7] MODESEL[0] BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR BIDIR General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) General purpose input/output (GPIO) Along with ModeSel[1] used to configure I2C interface and PID/VID selection. Please see Table 3 for further details Not connect in reference design Connect to VDD in reference design Along with ModeSel[0] used to configure I2C interface and PID/VID selection. Please see Table 3 for further details Connect to VDD in reference design Not connect in reference design Not connect in reference design
51 52 53
RESERVED[0] RESERVED[1] MODESEL[1]
BIDIR BIDIR BIDIR
54 55 56
RESERVED[2] RESERVED[3] RESERVED[4]
BIDIR BIDIR BIDIR
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Pinout and pin descriptions
Table 10: STV0676 pin description Pin Signal Type Description
STV0676
USB INTERFACE 61 62 USB_DN USB_DP BIDIR BIDIR USB data line USB data line
TEST MODE SELECTION 1 2 3 TEST_CONF[0] TEST_CONF[1] TEST_CONF[2] INPUT INPUT INPUT Test configuration bit - connect to VDD for normal operation Test configuration bit - connect to VDD for normal operation Test configuration bit - connect to VDD for normal operation
EEPROM INTERFACEa 63 64 EEPROM_SDA EEPROM_SCL BIDIR BIDIR Serial data to/from the EEPROM or slave I2C clock Serial clock to the EEPROM or slave I2C clock
a. The I2C pins EEPROM_SCL and EEPROM_SDA can be reconfigured to act as a low speed I2C slave device that allows the user to directly control the internal register space of the VP and VC modules.
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STV0676
Package Details STV0676 64pin TQFP
6
Dim.
Package Details STV0676 64pin TQFP
mm Min
A A1 A2 B C D D1 D3 e E E3 L L1 K 0.40 0.05 1.35 0.18 0.12 1.40 0.23 0.16 12.00 10.00 7.50 0.50 12.00 7.50 0.60 1.00 0.75 0.0157
inch Max
1.60 0.15 1.45 0.28 0.20 0.002 0.053 0.007 0.0047 0.055 0.009 0.0063 0.472 0.394 0.295 0.0197 0.472 0.295 0.0236 0.0393 0C (min.), 7C (max.) 0.0295
Typ
Min
Typ
Max
0.063 0.006 0.057 0.011 0.0079
(R)
OUTLINE AND MECHANICAL DATA
Weight: 0.30 gr
Body: 10x10x1.40mm
TQFP64
D D1 A D3 A1 48 49 33 32
0.10mm Seating Plane
A2
B
E3
E1
64 1 e 16
17 C
L1
E
L
K
TQFP64
B
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Reference design and evaluation kits (RDK's and EVK's)
STV0676
7
Reference design and evaluation kits (RDK's and EVK's)
STMicroelectronics supply a full range of supporting reference design kits for their range of sensors and coprocessors. Please refer to the STMicroelectronics website (Imaging Products under the quick links) for the upto-date list of available reference designs and evaluation kits.
8
Ordering details
For more information on the appropriate sensor choice please contact STMicroelectronics or refer to the STMicroelectronics website (Imaging Products under the quick links).
9
Design issues
There are no restrictions on the positioning of the STV0676 coprocessor with respect to the sensor. An EEPROM is required for full USB 1.1 compliance, see reference design manual for details.
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Revision C
ADCS 7280926
STV0676
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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ADCS 7280926
Revision C
21/21

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