View PI74LVCC3245AS_1296022.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

PI74LVCC3245A
8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
Product Features
* 2.7V to 3.6V on A-port and 3V to 5.5V on B-port * Latch-up performance exceeds 200mA Per JESD78 * ESD protection exceeds JESD22 2000V Human-Body Model (A114-B) 200V Machine Model (A115-A) * Industrial Temperature: -40C to +85C * Packages (Pb-free available): - 24-pin 173-mil wide plastic TSSOP (L) (Pb-free & Green available) - 24-pin 150-mil wide plastic QSOP (Q) - 24-pin 300-mil wide plastic SOIC (S)
Product Description
Pericom Semiconductor's PI74LVC series of logic circuits are produced using the Company's advanced submicron CMOS technology, achieving industry leading speed. The PI74LVCC3245A is a non-inverting 8-bit Bidirectional Transceiver that uses two seperate power supply rails. A-port (VCCA) is set to operate at 3.3V and B-port (VCCB) is set to operate from 3.3V to 5V. This allows for translation from a 3.3V to a 5V environment and vice-versa. This tranceiver is designed for asynchronous two-way communication between data buses. The direction control input pin (DIR) determines the dataflow from the A bus to the B bus or from the B bus to the A bus. The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition.
Logic Block Diagram
DIR 2
22
Product Pin Configuration
OE
(3.3V) VCCA DIR A1 A2 A3 A4 A5 A6
18 17 16
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VCCB (3.3V to 5V) NC OE B1 B2 B3 B4 B5 B6 B7 B8 GND
A1 3
A2 4
A3
5
21 B1 20 B2 19
A4 6
A5 7
A6 8
A7 9
A8 10
B3
B4
B5
B6
A7 A8 GND GND
15 B7 14 B8
Product Pin Description
Pin Name Description 3-State Output Enable Inputs (Active LOW) Direction Control Input Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs NO Internal Connect Ground Power OE
Truth Table(1)
Inputs OE L L H DIR L H X Bus B Data to Bus A Bus A Data to Bus B Z (Isolation)
L = Low Signal Level Z = High Impedance
Outputs
DIR Ax Bx NC GND VCCA,VCCB
Note: 1. H = High Signal Level X = Don't Care or Irrelevant
1
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Supply voltage range, VCCA and VCCB ............................ -0.5V to +7V Input voltage range, VI(2) : I/O ports (A-port) .... -0.5V to VCCA +0.5V I/O ports (B-port) ........... -0.5V to VCCB+0.5V Control Pins ................. -0.5V to VCCA +0.5V Input clamp current, IIK (VI <0)................................................-50mA Output clamp current, IOK (VO <0)...........................................-50mA Continous Output Current IO ..................................................50mA Continous Current through each VCC or GND pin .....................100mA Package thermal impedance, JA(3): package L...................... 84C/W package Q...................... 98C/W package S ...................... 79C/W Storage Temperature range, Tstg ................................-65C to 150C Notes: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. This value is limited to 7V maximum. 3. The package thermal impedance is calculated in accordance with JESD 51.
2
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Recommended Operating Conditions(4)
Parameter VCCA VCCB VIHA Description Supply Voltage Supply Voltage High-Level Input Voltage VOB 0.1V or VOB VCCB -0.1V VOA 0.1V or VOA VCCA -0.1V VOB 0.1V or VOB VCCB -0.1V VOA 0.1V or VOA VCCA -0.1V VOA 0.1V or VOA VCCA -0.1V, or VOB 0.1V or VOB VCCB -0.1V VOA 0.1V or VOA VCCA -0.1V, or VOB 0.1V or VOB VCCB -0.1V 2.7V 3.0V 3.6V 2.7V 3.0V 3.6V 2.7V 3.0V 3.6V 2.7V 3.0V 3.6V 2.7V 3.0V 3.6V 2.7V 3.0V 3.6V 3V 3.6V 5.5V 3V 3.6V 5.5V 3V 3.6V 5.5V 3V 3.6V 5.5V 3V 3.6V 5.5V 3V 3.6V 5.5V 0 0 0 0 2.7V 3.3V 2.7V 3.3V 2.7V 3.3V 2.7V 3.3V 3V 3V 3.3V 3V 3V 3V 3.3V 3V 2 2 2 0.8 0.8 0.8 VCCA VCCB VCCA VCCB -12 -24 -12 -24 12 24 12 24 10 -40 85 ns/v C mA VCCA VCCB Min. 2.7 3 2 2 2 2 2 3.85 0.8 0.8 0.8 0.8 0.8 1.65 V Nom. 3.3 5 Max. 3.6 5.5 Units
VIHB
High-Level Input Voltage
VILA
Low-Level Input Voltage
VILB
Low-Level Input Voltage
VIH
High-Level Input Voltage (Control Pins)
VIL VIA VIB VOA VOB IOHA IOHB IOLA IOLB t/v TA
Low-Level Input Voltage (Control Pins) Input Voltage Input Voltage Output Voltage Output Voltage High-level output Current High-level output Current Low-level output Current Low-level output Current Input transition Rise or Fall Rate Operating Free-Air Temperature
Note: 4. All unused inputs of the device must be held at the associated VCC or GND to ensure proper device operation.
3
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs DC Electrical Characteristics (Over the Operating Range, TA = -40C to +85C)
Parameters Description Test Conditions IOH = -100A VOHA Minimum High Level Output Voltage (Port A) IOH = -12mA IOH = -24mA IOH = -100A VOHB Minimum High Level Output Voltage (Port B) IOH = -12mA IOH = -24mA IOL = 100A VOLA Maximum Low Level Output Voltage (Port A) IOL = 12mA IOL = 24mA IOL = 100A VOLB Maximum Low Level Output Voltage (Port B) Maximum Input Leakage Current (Control Inputs) Maximum 3-State Output Leakage Current (A or B ports) Quiescent VCCA Supply Current Quiescent VCCB Supply Current ICC per input (A port) IOL = 12mA IOL = 24mA VI = VCCA or GND VI = VIL or VIH, OE = VCCA VO = VCCA/B or GND A port = VCCA or GND, IO = 0 B to A, B-Port = VCCB or GND, IO (A port) = 0 A to B, A port = VCCA or GND, IO(B port) = 0 One input VI = VCCA -0.6V, other inputs = VCCA or GND, OE = GND and DIR = VCCA VI = VCCA -0.6V, other inputs =VCCA or GND, DIR = VCCA VI = VCCA -0.6V, other inputs = VCCA or GND, OE = GND One Input VI = VCCB -2.1V, other inputs = VCCB or GND, OE = GND and DIR = GND VCCA 3V 2.7V 3V 3V 2.7V 3V 2.7V 3V 2.7V 3V 2.7V 3V 2.7V 3V 2.7V 3V 3.6V VCCB 3V 3V 3V 3V 4.5V 3V 3V 3V 4.5V 3V 3V 3V 4.5V 3V 3V 3V 4.5V 3.6V 5.5V 3.6V 3.6V 3.6V 3.6V 3.6V Open 3.6V 5.5V 3.6V 5.5V 3.6V 3.6V 0.1 0.2 0.2 0.1 0.2 0.2 Min. Typ. 2.9 2.2 2.4 2.2 2 2.9 2.4 2.2 3.2 3 2.5 2.8 2.6 2.4 3 2.8 2.6 4.2 0.1 0.5 0.5 0.5 0.1 0.5 0.5 0.5 1 1 5 10 10 10 10 10 50 A V Max. Units
II IOZ(5)
ICCA
ICCB
ICC(6)
ICC per input (OE)
3.6V
3.6V
50
A
ICC per input (DIR)
3.6V
3.6V
50
ICC per input (B Port)
3.6V
5.5V
0.7
1.5
mA
Notes: 5. For I/O ports, the parameter IOZ includes the input leakage current. 6. This is the increase in supply current for each input that is at one of the specified voltage levels, rather than 0V or the associated VCC. 4
PS8702A 09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
Capacitance (TA = 25C)
Parameters CIN CI/O CPD Description Control Input Capacitance Input/Output Capacitance (A or B port) Power Dissipation Capacitance (7) Test Conditions VI = VCCA or GND, VCCA = Open, VCCB =Open VI/O = VCCA/B or GND, VCCA = 3.3V, VCCB = 5V Outputs Enabled Outputs Disabled VCCA = 3.3V, VCCB = 5V CL = 0pF, f = 10MHz Typ. 2.6 9 22 2.4 pF Units
Notes: 7. CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (ICCD) at no output loading and operating at 50% duty cycle, CPD is related to ICCD dynamic operating current by the expression: ICCD = (CPD)(VCC)(fIN) +(ICC static)
AC Electrical Characteristics (Over Operating Range, TA = -40C to +85C)
Parameters tPHL tPLH tPHL tPLH tPZL tPZH tPZL tPZH tPLZ tPHZ tPLZ tPHZ tSK(O) From (Input) To (Output) VCCA = 2.7V to 3.6V, VCCB = 5V 0.5V CL = 50pF, RL = 500 Min. A B OE OE OE OE B A A B A B 1 1 1 1 1 1 1 1 1 1 1 1 Max. 5.6 5.3 5.0 5.2 8.0 7.8 8.1 8.4 7.1 7.3 7 7 1.5 VCCA = 2.7V to 3.6V, VCCB = 3.3V 0.3V CL = 50pF, RL = 500 Min. 1 1 1 1 1 1 1 1 1 1 1 1 Max. 7.1 7.2 6.4 6.6 9.0 8.8 9.1 8.8 7.3 7.5 7.5 7.6 1.5 ns Units
Output-to-Output Skew(8)
Note: 8. Skew between any two outputs of the same device, switching in the same direction. Parameter guaranteed by design.
5
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Power- Up Considerations
To avoid excessive supply current, bus contention or oscillation during power-up, the following guidelines should be followed: 1. Connect ground first before any supply voltage is applied. 2. Power up VCCA, which is the control side of the device. 3. Ramp OE ahead of or with VCCA to help prevent bus contention 4. Ramp DIR with VCCA if DIR high is needed (A bus to B bus). Otherwise keep DIR Low.
PARAMETER MEASUREMENT INFORMATION FOR A TO B PORT VCCA =2.7V TO 3.6V and VCCB = 5V 0.5V
2xVCCB Open GND
From Output Under Test CL = 50 50pF
(See Note A)
500 500 500 500
S1
Test tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
S1 Open 2 x VCCB GND
Load Circuit
2.7V
Input
Output Control
2.7V
1.5V
1.5V
1.5V
tPLH
1.5V
0V
tPHL
tPZL
Output Waveform 1 S1 at 2 x VCCB 50% VCCB (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
0V
tPLZ
VCCB VOL +0.3V
B-Port Output
50% VCCB
VOH
VOL VOH
0V
50% VCCB VOL
tPHZ 50% VCCB
VOH -0.3V
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 1. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement.
6
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
PARAMETER MEASUREMENT INFORMATION FOR B TO A PORT VCCA =2.7V TO 3.6V and VCCB = 5V 0.5V
6V From Output Under Test CL = 50 50pF
(See Note A)
500 500 500 500
S1
Open GND
Test tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
S1 Open 6V GND
Load Circuit
VCCB 0V VOH 1.5V VOL
Output Control
2.7V
1.5V
1.5V
B Port Input A-Port Output
50% VCCB tPLH 1.5V
50% VCCB tPHL
tPZL
Output Waveform 1 S1 at 6V (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
1.5V
0V
tPLZ
3V VOL +0.3V
VOL VOH
0V
tPHZ 1.5V
VOH -0.3V
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Figure 2. Load Circuit and Voltage Waveforms
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement.
7
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
PARAMETER MEASUREMENT INFORMATION FOR A TO B AND B TO A VCCA =2.7V TO 3.6V and VCCB = 3.3V 0.3V
6V From Output Under Test CL = 50pF
(See Note A)
500
S1
Open GND
Test tPLH/tPHL tPLZ/tPZL tPHZ/tPZH
S1 Open 6V GND
500
Load Circuit
2.7V
Input
Output Control
2.7V
1.5V
1.5V
1.5V
tPLH
1.5V
0V
tPHL
tPZL
Output Waveform 1 S1 at 6V (see Note B) t PZH Output Waveform 2 S1 at GND (see Note B)
1.5V
0V
tPLZ
3V VOL +0.3V
Output
VOH
VOL VOH
0V
1.5V
1.5V
VOL
tPHZ 1.5V
VOH -0.3V
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
Notes: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input impulses are supplied by generators having the following characteristics: PRR 10 MHz, ZO = 50, tR 2.5ns, tF 2.5ns. D. The outputs are measured one at a time with one transition per measurement.
Figure 2. Load Circuit and Voltage Waveforms
8
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs Packaging Mechanical: 24-pin TSSOP (L)
24
.169 .177
4.3 4.5
.004 .008
1
0.09 0.20
.303 .311 7.7 7.9
0.45 0.75
.018 .030
.047 1.20 Max
SEATING PLANE
.252 BSC 6.4
.0256 BSC 0.65
.007 .012 0.19 0.30
.002 .006
0.05 0.15
X.XX DENOTES CONTROLLING X.XX DIMENSIONS IN MILLIMETERS
Packaging Mechanical: 24-pin QSOP (Q)
24
.008 0.20 MIN.
.150 .157
3.81 3.99
.008 .013 0.20 0.33
Guage Plane
.010 0.254
1
.337 .344
Detail A
8.56 8.74
.016 .035 0.41 0.89
.041 1.04 REF
0-6
.033 0.84
.053 .069
1.35 1.75
.015 x 45 0.38
Detail A
SEATING PLANE
.007 .010
0.178 0.254
.016 .050
0.406 1.27
.228 .244 5.79 6.20
.025 typical 0.635
.008 0.203 .012 0.305
.004 0.101 .010 0.254
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
9
PS8702A
09/10/03
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs
Packaging Mechanical: 24-pin SOIC (S)
24
.2914 .2992
7.40 7.60
.010 .029
1
.5985 15.20 .6141 15.60
0.254 x 45 0.737
0-8
.0091 .0125
0.23 0.32
.021 0.533 .031 0.787
0.41 .016 1.27 .050
.0926 2.35 .1043 2.65
SEATING PLANE
.394 .419 10.00 10.65
.050 BSC
1.27
.013 .020 0.33 0.51
.0040 .0118
0.10 0.30
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
Ordering Information
Ordering Code PI74LVCC3245AL PI74LVCC3245ALE PI74LVCC3245AQ PI74LVCC3245AS Package Code L L Q S Package Desription 24-pin, 173-mil wide plastic TSSOP Pb-free, 24-pin, 173-mil wide plastic TSSOP 24-pin, 150-mil wide plastic QSOP 24-pin, 300-mil wide plastic SOIC
Notes: 1. Thermal characteristics can be found on the company web site at http://www.pericom.com/packaging/
Pericom Semiconductor Corporation * 1-800-435-2336 * http://www.pericom.com
10
PS8702A 09/10/03

▲Up To Search▲

Price & Availability of PI74LVCC3245AS

	To Download PI74LVCC3245AS Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .