54AC16240, 74AC16240

16BIT BUS DRIVERS

WITH 3STATE OUTPUTS

SCAS234B − JULY 1990 − REVISED OCTOBER 1996

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POST OFFICE BOX 655303

POST OFFICE BOX 1443

Widebus

 Family

Memory Address Registers

Layout

Minimizes High-Speed Switching Noise

CMOS) 1-

µm Process

125

°C

Shrink Small-Outline (DL) Package Using

25-mil Center-to-Center Pin Spacings and

380-mil Fine-Pitch Ceramic Flat (WD)

Package Using 25-mil Center-to-Center Pin

Spacings

description

The ’AC16240 are 16-bit buffers and line drivers

designed

specifically

to

improve

both

the

performance and density of 3-state memory

address drivers, clock drivers, and bus-oriented

receivers and transmitters.

They can be used as four 4-bit buffers, two 8-bit

buffers, or one 16-bit buffer. These devices

provide

inverting

outputs

and

symmetrical

active-low output-enable (OE) inputs.

The 74AC16240 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and

functionality of standard small-outline packages in the same printed circuit board area.

The 54AC16240 is characterized for operation over the full military temperature range of −55

°C to 125°C.

The 74AC16240 is characterized for operation from −40

°C to 85°C.

FUNCTION TABLE

(each 4-bit buffer)

INPUTS

OUTPUT

OE

A

OUTPUT

Y

L

H

L

L

LH

H

X

Z

Copyright

 1996, Texas Instruments Incorporated

UNLESS OTHERWISE NOTED this document contains PRODUCTION

DATA information 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.

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

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1OE

1Y1

1Y2

GND

1Y3

1Y4

2Y1

2Y2

GND

2Y3

2Y4

3Y1

3Y2

GND

3Y3

3Y4

4Y1

4Y2

GND

4Y3

4Y4

4OE

2OE

1A1

1A2

GND

1A3

1A4

2A1

2A2

GND

2A3

2A4

3A1

3A2

GND

3A3

3A4

4A1

4A2

GND

4A3

4A4

3OE

54AC16240 . . . WD PACKAGE

74AC16240 . . . DL PACKAGE

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