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EXTENDEDCOMMERCIALTEMPERATURERANGE

IDT74LVC157A

3.3V CMOS QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR

FEBRUARY 2000

1999

Integrated Device Technology, Inc.

DSC-4721/-

c

IDT74LVC157A

EXTENDED COMMERCIAL TEMPERATURE RANGE

DESCRIPTION:

This quadruple 2-line to 1-line data selector/multiplexer is built using

advanced dual metal CMOS technology. The LVC157A features a common

strobe (

G) input. When the strobe is high, all outputs are low. When the

strobe is low, a 4-bit word is selected from one of two sources and is routed

to the four outputs. The device provides true data.

Inputs 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 LVC157A has been designed with a ±24mA output driver. This

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

speed performance.

FUNCTIONAL BLOCK DIAGRAM

3.3V CMOS QUADRUPLE

2-LINE TO 1-LINE DATA

SELECTOR/MULTIPLEXER,

5 VOLT TOLERANT I/O

FEATURES:

–

0.5 MICRON CMOS Technology

–

ESD > 2000V per MIL-STD-883, Method 3015;

> 200V using machine model (C = 200pF, R = 0)

–

1.27mm pitch SOIC, 0.635mm pitch QSOP,

0.65mm pitch SSOP, 0.65mm pitch TSSOP packages

–

Extended commercial range of – 40°C to +85°C

–

CMOS power levels (0.4µ W typ. static)

–

Rail-to-Rail output swing for increased noise margin

–

All inputs, outputs and I/O are 5 Volt tolerant

–

Supports hot insertion

Drive Features for LVC157A:

–

High Output Drivers: ±24mA

–

Reduced system switching noise

1Y

4

1A

2Y

7

3Y

9

4Y

12

1B

2A

2B

3A

3B

4A

4B

2

3

5

6

11

10

14

13

G

A/B

1

15

APPLICATIONS:

• 5V and 3.3V mixed voltage systems

• Data communication and telecommunication systems