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IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O
* Typical tSK(o) (Output Skew) < 250ps * ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) * VCC = 3.3V 0.3V, Normal Range * VCC = 2.7V to 3.6V, Extended Range * CMOS power levels (0.4 W typ. static) * All inputs, outputs, and I/O are 5V tolerant * Available in SSOP, TSSOP, and TVSOP packages
IDT74LVC162245A
FEATURES:
DESCRIPTION:
DRIVE FEATURES: APPLICATIONS:
* Balanced Output Drivers: 12mA (A port) * High Output Drivers: 24mA (B port)
* 5V and 3.3V mixed voltage systems * Data communication and telecommunication systems
This 16-bit transceiver is built using advanced dual metal CMOS technology. The LVC162245A is designed for asynchronous communication between data buses. The control-function implementation minimizes external timing requirements. This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. All pins can be driven from either 3.3V or 5V devices. This feature allows the use of this device as a translator in a mixed 3.3V/5V supply system. The LVC162245A has series resistors in the device output structure of the "A" port which will significantly reduce line noise when used with light loads. The driver has been designed to drive 12mA at the designated threshold levels. The "B" port has a 24mA driver.
FUNCTIONAL BLOCK DIAGRAM
1DIR
1 48 24
2DIR
25
1OE 1A1
47 2 46
2OE 2A1
36 13 35
1B1 2A2
2B1
1A2
3
1B2 1A3
44 5 33
14
2B2 2A3
16
1B3 1A4
43 6 32
2B3 2A4
17
1B4
41 30
2B4 2A5
1A5
8
1B5
40
19 29
2B5
1A6
9
2A6 1B6
20 27 22
2B6
1A7
38 11
2A7 1B7
2B7 2A8
26 23
1A8
37 12
1B8
2B8
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
(c) 1999 Integrated Device Technology, Inc.
AUGUST 1999
DSC-4483/1
IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS(1)
Symbol Description Max VTERM(2) Terminal Voltage with Respect to GND Terminal Voltage with Respect to GND Storage Temperature DC Output Current Continuous Clamp Current, VI < 0 or VO < 0 Continuous Current through each VCC or GND -0.5 to +6.5 -0.5 to +6.5 -65 to +150 -50 to +50 -50 100 VTERM(3) TSTG IOUT IIK IOK ICC ISS
Unit V V C mA mA mA
1DIR 1B1 1B2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25
1OE 1A1 1A2
GND
1B3 1B4
GND
1A3 1A4
VCC
1B5 1B6
VCC
1A5 1A6
NOTES: 1. Stresses greater than those listed under ABSOLUTE 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. VCC terminals. 3. All terminals except VCC.
GND
1B7 1B8 2B1 2B2
GND
1A7 1A8 2A1 2A2
CAPACITANCE (TA = +25C, F = 1.0MHz)
Symbol CIN COUT CI/O Parameter(1) Input Capacitance Output Capacitance I/O Port Capacitance Conditions VIN = 0V VOUT = 0V VIN = 0V Typ. 4.5 6.5 6.5 Max. 6 8 8 Unit pF pF pF
GND
2B3 2B4
GND
2A3 2A4
NOTE: 1. As applicable to the device type.
PIN DESCRIPTION
Pin Names xOE xDIR xAx xBx Description Output Enable Input (Active LOW) Direction Control Output Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs
VCC
2B5 2B6
VCC
2A5 2A6
GND
2B7 2B8 2DIR
GND
2A7 2A8 2OE
FUNCTION TABLE (EACH 8-BIT SECTION)(1)
Inputs xOE xDIR L H X Outputs B Data to A Bus A Data to B Bus Isolation
SSOP/ TSSOP/ TVSOP TOP VIEW
L L H
NOTE: 1. H = HIGH Voltage Level X = Don't Care L = LOW Voltage Level
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IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified: Operating Condition: TA = -40C to +85C
Symbol VIH VIL IIH IIL IOZH IOZL IOFF VIK VH ICCL ICCH ICCZ ICC High Impedance Output Current (3-State Output pins) Input/Output Power Off Leakage Clamp Diode Voltage Input Hysteresis Quiescent Power Supply Current VCC = 0V, VIN or VO 5.5V VCC = 2.3V, IIN = -18mA VCC = 3.3V VCC = 3.6V VIN = GND or VCC -- -- -- -- -- -- -- -0.7 100 -- -- -- 50 -1.2 -- 10 10 500 A V mV A VCC = 3.6V VO = 0 to 5.5V -- -- 10 A Parameter Input HIGH Voltage Level Input LOW Voltage Level Input Leakage Current VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 2.3V to 2.7V VCC = 2.7V to 3.6V VCC = 3.6V VI = 0 to 5.5V Test Conditions Min. 1.7 2 -- -- -- Typ.(1) -- -- -- -- -- Max. -- -- 0.7 0.8 5 A V Unit V
Quiescent Power Supply Current Variation
3.6 VIN 5.5V(2) One input at VCC - 0.6V, other inputs at VCC or GND
A
NOTES: 1. Typical values are at VCC = 3.3V, +25C ambient. 2. This applies in the disabled state only.
OUTPUT DRIVE CHARACTERISTICS (A PORT)
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.7V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 4mA IOH = - 6mA IOH = - 4mA IOH = - 8mA IOH = - 6mA IOH = - 12mA IOL = 0.1mA IOL = 4mA IOL = 6mA IOL = 4mA IOL = 8mA IOL = 6mA IOL = 12mA Min. VCC - 0.2 1.9 1.7 2.2 2 2.4 2 -- -- -- -- -- -- -- Max. -- -- -- -- -- -- -- 0.2 0.4 0.55 0.4 0.6 0.55 0.8 V Unit V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
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IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
OUTPUT DRIVE CHARACTERISTICS (B PORT)
Symbol VOH Parameter Output HIGH Voltage VCC = 2.3V VCC = 2.3V VCC = 2.7V VCC = 3V VCC = 3V VOL Output LOW Voltage VCC = 2.3V to 3.6V VCC = 2.3V VCC = 2.7V VCC = 3V IOH = - 24mA IOL = 0.1mA IOL = 6mA IOL = 12mA IOL = 12mA IOL = 24mA Test Conditions(1) VCC = 2.3V to 3.6V IOH = - 0.1mA IOH = - 6mA IOH = - 12mA Min. VCC - 0.2 2 1.7 2.2 2.4 2 -- -- -- -- -- Max. -- -- -- -- -- -- 0.2 0.4 0.7 0.4 0.55 V Unit V
NOTE: 1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range. TA = - 40C to + 85C.
OPERATING CHARACTERISTICS, VCC = 3.3V 0.3V, TA = 25C
Symbol CPD CPD Parameter Power Dissipation Capacitance per Transceiver Outputs enabled Power Dissipation Capacitance per Transceiver Outputs disabled Test Conditions CL = 0pF, f = 10Mhz Typical Unit pF
SWITCHING CHARACTERISTICS (A PORT)(1)
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xBx to xAx Output Enable Time xOE to xAx Output Disable Time xOE to xAx Output Skew(2) Min. 1.5 1.5 1.5 VCC = 2.7V Max. 5.7 7.9 8.3 VCC = 3.3V 0.3V Min. Max. 1.5 4.8 1.5 2.2 6.3 7.4 500 Unit ns ns ns ps
--
--
--
NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction.
SWITCHING CHARACTERISTICS (B PORT)(1)
Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Parameter Propagation Delay xAx to xBx Output Enable Time xOE to xBx Output Disable Time xOE to xBx Output Skew(2) Min. 1.5 1.5 1.5 VCC = 2.7V Max. 4.7 6.7 7.1 VCC = 3.3V 0.3V Min. Max. 1 4 1.5 1.5 5.5 6.6 500 Unit ns ns ns ps
--
--
--
NOTES: 1. See TEST CIRCUITS AND WAVEFORMS. TA = - 40C to + 85C. 2. Skew between any two outputs of the same package and switching in the same direction.
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IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS
Symbol VLOAD VIH VT VLZ VHZ CL VCC(1)= 3.3V0.3V VCC(1)= 2.7V 6 2.7 1.5 300 300 50
VCC 500 Pulse (1, 2) Generator VIN D.U.T. RT 500 CL
LVC Link
VCC(2)= 2.5V0.2V 2 x Vcc Vcc Vcc / 2 150 150 30
Unit V V V mV mV pF
VLOAD Open GND
6 2.7 1.5 300 300 50
SAME PHASE INPUT TRANSITION tPLH OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL tPHL
VIH VT 0V VOH VT VOL VIH VT 0V
LVC Link
Propagation Delay
ENABLE CONTROL INPUT tPZL OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH VLOAD/2 VT tPHZ VT 0V tPLZ DISABLE VIH VT 0V VLOAD/2 VOL+VLZ VOL VOH VOH-VHZ 0V
LVC Link
VOUT
Test Circuit for All Outputs
DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate 10MHz; tF 2.5ns; tR 2.5ns. 2. Pulse Generator for All Pulses: Rate 10MHz; tF 2ns; tR 2ns.
NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
SWITCH POSITION
Test Open Drain Disable Low Enable Low Disable High Enable High All Other Tests Switch VLOAD GND Open
VIH VT 0V VOH VT VOL VOH VT VOL tPLH2 tPHL2
LVC Link
DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL SYNCHRONOUS CONTROL
tSU
tH
tREM
tSU
tH
VIH VT 0V VIH VT 0V VIH VT 0V VIH VT 0V
LVC Link
INPUT
Set-up, Hold, and Release Times
LOW-HIGH-LOW PULSE tW HIGH-LOW-HIGH PULSE VT
LVC Link
tPLH1
tPHL1
OUTPUT 1
VT
tSK (x)
tSK (x)
OUTPUT 2
tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1
Pulse Width
Output Skew - tSK(X)
NOTES: 1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs. 2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.
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IDT74LVC162245A 3.3V CMOS 16-BIT TRANSCEIVER WITH 3-STATE OUTPUTS
INDUSTRIAL TEMPERATURE RANGE
ORDERING INFORMATION
IDT LVC X XX Bus-Hold Temp. Range XX Family XX XXXX Device Type Package
PV PA PF
Shrink Small Outline Package Thin Shrink Small Outline Package Thin Very Small Outline Package
245A 16-Bit Bus Transceiver 162 Double-Density 3.3Volt with Resistors, 12mA (A Port) 24mA (B Port)
Blank No Bus-hold 74 -40C to +85C
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for Tech Support: logichelp@idt.com (408) 654-6459
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