54ACT16827, 74ACT16827

20-BIT BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS163A – JUNE 1990 – REVISED APRIL 1996

1

POST OFFICE BOX 655303

Widebus

™ Family

PCB Layout

Minimizes High-Speed Switching Noise

CMOS) 1-

µm Process

125

°C

Shrink Small-Outline (DL) Packages Using

25-mil Center-to-Center Pin Spacings and

380-mil Fine-Pitch Ceramic Flat (WD)

Packages Using 25-mil Center-to-Center

Pin Spacings

description

The ’ACT16827 are noninverting 20-bit buffers

composed of two 10-bit sections with separate

output-enable signals. For either 10-bit buffer

section, the two output-enable (1OE1 and 1OE2

or 2OE1 and 2OE2) inputs must both be low for

the corresponding Y outputs to be active. If either

output-enable input is high, the outputs of that

10-bit buffer section are in the high-impedance

state.

The 74ACT16827 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 54ACT16827 is characterized for operation over the full military temperature range of –55

°C to 125°C. The

74ACT16827 is characterized for operation from –40

°C to 85°C.

FUNCTION TABLE

(each 8-bit section)

INPUTS

OUTPUT

OE1

OE2

A

Y

L

L

L

L

L

LH

H

H

XX

Z

X

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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1OE1

1Y1

1Y2

GND

1Y3

1Y4

1Y5

1Y6

1Y7

GND

1Y8

1Y9

1Y10

2Y1

2Y2

2Y3

GND

2Y4

2Y5

2Y6

2Y7

2Y8

GND

2Y9

2Y10

2OE1

1OE2

1A1

1A2

GND

1A3

A14

1A5

1A6

1A7

GND

1A8

1A9

1A10

2A1

2A2

2A3

GND

2A4

2A5

2A6

2A7

2A8

GND

2A9

2A10

2OE2

54ACT16827 . . . WD PACKAGE

74ACT16827 . . . DL PACKAGE

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