SN74ALVCHR162245

16-BIT BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES064C – DECEMBER 1995 – REVISED FEBRUARY 1999

1

POST OFFICE BOX 655303

Widebus

™ Family

CMOS) Submicron Process

Resistors, So No External Resistors Are

Required

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

JESD 17

Need for External Pullup/Pulldown

Resistors

Shrink Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages

NOTE: For order entry:

The DGG package is abbreviated to G.

description

This

16-bit

(dual-octal)

noninverting

bus

operation.

The

SN74ALVCHR162245

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.

All outputs, which are designed to sink up to 12 mA, include equivalent 26-

Ω series resistors to reduce overshoot

and undershoot.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN74ALVCHR162245 is characterized for operation from –40

°C to 85°C.

DGG OR DL PACKAGE

(TOP VIEW)

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1DIR

1B1

1B2

GND

1B3

1B4

1B5

1B6

GND

1B7

1B8

2B1

2B2

GND

2B3

2B4

2B5

2B6

GND

2B7

2B8

2DIR

1OE

1A1

1A2

GND

1A3

1A4

1A5

1A6

GND

1A7

1A8

2A1

2A2

GND

2A3

2A4

2A5

2A6

GND

2A7

2A8

2OE

Copyright

© 1999, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.