SN74ACT1073

16-BIT BUS-TERMINATION ARRAY

WITH BUS-HOLD FUNCTION

SCAS193A – MARCH 1992 – REVISED NOVEMBER 2002

1

POST OFFICE BOX 655303

on Floating Bus Lines in CMOS Systems

Caused By Line Reflections

Minimizes High-Speed Switching Noise

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

description/ordering information

This device is designed to terminate bus lines in CMOS systems. The integrated low-impedance diodes clamp

the voltage of undershoots and overshoots caused by line reflections and ensure signal integrity. The device

also contains a bus-hold function that consists of a CMOS-buffer stage with a high-resistance feedback path

between its output and its input. The SN74ACT1073 prevents bus lines from floating without using pullup or

pulldown resistors.

The high-impedance inputs of these internal buffers are connected to the input terminals of the device. The

feedback path on each internal buffer stage keeps a bus line tied to the bus holder at the last valid logic state

generated by an active driver before the bus switches to the high-impedance state.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

SOIC

DW

Tube

SN74ACT1073DW

ACT1073

–40

°C to 85°C

SOIC – DW

Tape and reel

SN74ACT1073DWR

ACT1073

SOP – NS

Tape and reel

SN74ACT1073NSR

ACT1073

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Copyright

 2002, 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.

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.

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D1

D2

D3

D4

GND

GND

D5

D6

D7

D8

D16

D15

D14

D13

D12

D11

D10

D9

DW OR NS PACKAGE

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