IDT74LVC16245APAG - Integrated Device Technology

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

1OCTOBER 1999INDUSTRIAL TEMPERATURE RANGE

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

FEATURES:

• 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 (0.4µµ

µµ

µ W typ. static)

• All inputs, outputs, and I/O are 5V tolerant

• Supports hot insertion

• Available in SSOP, TSSOP, and TVSOP packages

FUNCTIONAL BLOCK DIAGRAM

APPLICATIONS:

• 5V and 3.3V mixed voltage systems

• Data communication and telecommunication systems

DRIVE FEATURES:

• High Output Drivers: ±24mA

• Reduced system switching noise

3.3V CMOS 16-BIT

BUS TRANSCEIVER

WITH 3-STATE OUTPUTS,

5 VOLT TOLERANT I/O

IDT74LVC16245A

DESCRIPTION:

This 16-bit bus transceiver is built using advanced dual metal CMOS

technology. This high-speed, low power transceiver is ideal for asynchro-

nous communication between two busses (A and B). The Direction and

Output Enable controls are designed to operate this device as either two

independent 8-bit transceivers or one 16-bit transceiver. The direction

control pin (DIR) controls the direction of data flow. The output enable pin

(OE) overrides the direction control and disables both ports. All inputs are

designed with hysteresis for improved noise margin.

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 LVC16245A has been designed with a ±24mA output driver. This

driver is capable of driving a moderate to heavy load while maintaining

speed performance.

1DIR

1A1

1A2

1A3

1A4

1A5

1A6

1A7

1A8

1B8

1B7

1B6

1B5

1B4

1B3

1B2

1B1

1OE

2DIR

2A1

2A2

2A3

2A4

2A5

2A6

2A7

2A8

2B8

2B7

2B6

2B5

2B4

2B3

2B2

2B1

2OE

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

SSOP/ TSSOP/ TVSOP

TOP VIEW

PIN CONFIGURATION

NOTES:

1 . H = HIGH Voltage Level

X = Don’t Care

L = LOW Voltage Level

Z = High-Impedance

Inputs

xOE xDIR Outputs

L L Bus B Data to Bus A

L H Bus A Data to Bus B

HX Z

FUNCTION T ABLE (EACH 8-BIT SECTION)(1)

Pin Names Description

xOE Output Enable Inputs (Active LOW)

xDIR Direction Control Input

xAx Side A Inputs or 3-State Outputs

xBx Side B Inputs or 3-State Outputs

PIN DESCRIPTION

NOTE:

1. As applicable to the device type.

Symbol Parameter(1) Conditions Typ. Max. Unit

CIN Input Capacitance VIN = 0V 4.5 6 pF

COUT Output Capacitance VOUT = 0V 6.5 8 pF

CI/O I/O Port Capacitance VIN = 0V 6.5 8 pF

CAPACITANCE (TA = +25°C, F = 1.0MHz)

Symbol Description Max Unit

VTERM(2) Terminal Voltage with Respect to GND –0.5 to +6.5 V

VTERM(3) Terminal Voltage with Respect to GND –0.5 to +6.5 V

TSTG Storage Temperature –65 to +150 °C

IOUT DC Output Current –50 to +50 mA

IIK Continuous Clamp Current, –50 mA

IOK VI < 0 or VO < 0

ICC Continuous Current through each ±1 0 0 mA

ISS VCC or GND

ABSOLUTE MAXIMUM RATINGS(1)

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.

1DIR

1B1

GND

VCC

GND

481

1B2

1B3

1B4

1B5

1B6

1B7

1B8

2B1

2B2

GND

2B3

2B4

2B6

2B5

VCC

GND

2B8

2B7

2DIR

1OE

1A1

GND

VCC

GND

1A2

1A3

1A4

1A5

1A6

1A7

1A8

2A1

2A2

GND

2A3

2A4

2A6

2A5

VCC

GND

2A8

2A7

2OE

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

Symbol Parameter Test Conditions Min. Typ.(1) Max. Unit

VIH Input HIGH Voltage Level VCC = 2.3V to 2.7V 1.7 — — V

VCC = 2.7V to 3.6V 2 — —

VIL Input LOW Voltage Level VCC = 2.3V to 2.7V — — 0.7 V

VCC = 2.7V to 3.6V — — 0.8

IIH Input Leakage Current VCC = 3.6V VI = 0 to 5.5V — — ±5µA

IIL

IOZH High Impedance Output Current VCC = 3.6V VO = 0 to 5.5V — — ±10 µA

IOZL (3-State Output pins)

IOFF Input/Output Power Off Leakage VCC = 0V, V IN or VO ≤ 5.5V — — ±50 µA

VIK Clamp Diode Voltage VCC = 2.3V, IIN = –18mA — –0.7 –1.2 V

VHInput Hysteresis VCC = 3.3V — 100 — mV

ICCL Quiescent Power Supply Current VCC = 3.6V VIN = GND or VCC —— 10µA

ICCH

ICCZ 3.6 ≤ VIN ≤ 5.5V(2) —— 10

∆ICC Quiescent Power Supply Current One input at VCC - 0.6V, other inputs at VCC or GND — — 500 µA

Variation

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Operating Condition: TA = –40°C to +85°C

NOTES:

1. Typical values are at VCC = 3.3V, +25°C ambient.

2. This applies in the disabled state only.

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 = – 40°C to + 85°C.

OUTPUT DRIVE CHARACTERISTICS

Symbol Parameter Test Conditions(1) Min. Max. Unit

VOH Output HIGH Voltage VCC = 2.3V to 3.6V IOH = – 0.1mA VCC – 0.2 — V

VCC = 2.3V IOH = – 6mA 2 —

VCC = 2.3V IOH = – 12mA 1 .7 —

VCC = 2.7V 2.2 —

VCC = 3V 2.4 —

VCC = 3V IOH = – 24mA 2 .2 —

VOL Output LOW Voltage VCC = 2.3V to 3.6V IOL = 0.1mA — 0.2 V

VCC = 2.3V IOL = 6mA — 0.4

IOL = 12mA — 0 .7

VCC = 2.7V IOL = 12mA — 0 .4

VCC = 3V IOL = 24mA — 0.55

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

OPERA TING CHARACTERISTICS, VCC = 3.3V ± 0.3V, TA = 25°C

Symbol Parameter Test Conditions Typical Unit

CPD Power Dissipation Capacitance per Transceiver Outputs enabled CL = 0pF, f = 10Mhz 38 pF

CPD Power Dissipation Capacitance per Transceiver Outputs disabled 4

SWITCHING CHARACTERISTICS(1)

VCC = 2.7V VCC = 3.3V ± 0.3V

Symbol Parameter Min. Max. Min. Max. Unit

tPLH Propagation Delay —4.7 1 4 ns

tPHL xAx to xBx, xBx to xAx

tPZH Output Enable Time —6.7 1.5 5.5 ns

tPZL xOE to xAx or xBx

tPHZ Output Disable Time —7.1 1.5 6.6 ns

tPLZ xOE to xAx or xBx

tSK(o) Output Skew(2) ——— 1ns

NOTES:

1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.

2. Skew between any two outputs of the same package and switching in the same direction.

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

Open

VLOAD

GND

VCC

Pulse

Generator D.U.T.

500Ω

VIN VOUT

(1, 2)

LVC Link

INPUT

VIH

VOH

VOL

tPLH1

tSK (x)

OUTPUT 1

OUTPUT 2

tPHL1

tSK (x)

tPLH2 tPHL2

VOH

VOL

tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1

LVC Link

SAME PHASE

INPUT TRANSITION

OPPOSITE PHASE

INPUT TRANSITION

VOH

VOL

tPLH tPHL

tPHL

tPLH

OUTPUT

VIH

LVC Link

DATA

INPUT 0V

tREM

TIMING

INPUT

ASYNCHRONOUS

CONTROL

SYNCHRONOUS

CONTROL

tSU tH

VIH

LVC Link

LOW-HIGH-LOW

PULSE

HIGH-LOW-HIGH

PULSE

LVC Link

CONTROL

INPUT

tPLZ 0V

OUTPUT

NORMALLY

LOW tPZH

SWITCH

CLOSED

OUTPUT

NORMALLY

HIGH

ENABLE DISABLE

SWITCH

OPEN

tPHZ

VOL+VLZ

VOH

tPZL

VLOAD/2 VLOAD/2

VIH

VOL

VOH-VHZ

LVC Link

TEST CIRCUITS AND WAVEFORMS

Propagation Delay

Test Circuit for All Outputs

Enable and Disable Times

Set-up, Hold, and Release Times

NOTES:

1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.

2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.

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.

Output Skew - tSK(X)

Pulse Width

NOTE:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.

Symbol VCC(1)= 3.3V±0.3V VCC(1)= 2.7V VCC(2)= 2.5V±0.2V Unit

VLOAD 6 6 2 x Vcc V

VIH 2.7 2.7 Vcc V

VT1.5 1.5 Vcc / 2 V

VLZ 300 300 150 mV

VHZ 300 300 150 mV

CL50 50 30 pF

TEST CONDITIONS

SWITCH POSITION

Test Switch

Open Drain

Disable Low VLOAD

Enable Low

Disable High GND

Enable High

All Other Tests Open

INDUSTRIAL TEMPERATURE RANGE

IDT74LVC16245A

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

ORDERING INFORMATION

CORPORATE HEADQUARTERS for SALES: for Tech Support:

2975 Stender Way 800-345-7015 or 408-727-6116 logichelp@idt.com

Santa Clara, CA 95054 fax: 408-492-8674 (408) 654-6459

www.idt.com

IDT XX LVC XXXX XX

Package

Device Type

Temp. Range

PAG

PFG

Shrink Small Outline Package

Thin Shrink Small Outline Package

TSSOP - Green

Thin Very Small Outline Package

TVSOP - Green

16-Bit Bus Transceiver with 3-State Outputs

-40°C to +85°C

XXX

FamilyBus-Hold

245A

No Bus-hold

Double-Density, ±24mA

Blank