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SN74BCT757

OCTAL BUFFER/DRIVER

WITH OPEN-COLLECTOR OUTPUTS

SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993

2−1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443

• BiCMOS Design Significantly Reduces I

CCZ

• ESD Protection Exceeds 2000 V Per

MIL-STD-883C, Method 3015; Exceeds

200 V Using Machine Model (C = 200 pF,

R = 0)

• Open-Collector Outputs Drive Bus Lines

or Buffer Memory Address Registers

• Package Options Include Plastic

Small-Outline (DW) Packages and Standard

Plastic 300-mil DIPs (N)

description

This octal buffer and line driver is designed

specifically to improve both the performance and

density of 3-state memory address drivers, clock

drivers, and bus-oriented receivers and

transmitters. This device provides

complementary output-enable (OE and OE

)

inputs and noninverting outputs.

The SN74BCT757 is characterized for operation

from 0°C to 70°C.

FUNCTION TABLES

INPUTS

OUTPUT

1OE 1A

OUTPUT

H X H

L LL

L H H

INPUTS

OUTPUT

2OE 2A

OUTPUT

L X H

H LL

H H H

DW OR N PACKAGE

(TOP VIEW)

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

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.

Summary of content (9 pages)

PAGE 1
SN74BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993 • • • • DW OR N PACKAGE (TOP VIEW) BiCMOS Design Significantly Reduces ICCZ ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Open-Collector Outputs Drive Bus Lines or Buffer Memory Address Registers Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (N) 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 G
PAGE 2
SN74BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993 logic symbol† 1OE 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 † 1 logic diagram (positive logic) 1OE EN 2 18 4 16 6 14 8 12 19 2 18 4 16 1A3 6 14 1A4 8 12 1A1 1Y1 1 1Y1 1Y2 1Y3 1A2 1Y2 1Y4 1Y3 EN 11 9 13 7 15 5 17 3 1Y4 2Y1 2Y2 2OE 2Y3 19 2Y4 2A1 This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
PAGE 3
SN74BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993 recommended operating conditions (see Note 1) MIN NOM MAX 4.5 5 5.5 UNIT VCC Supply voltage VIH High-level input voltage VIL Low-level input voltage VOH High-level output voltage 5.5 V IIK Input clamp current −18 mA IOL Low-level output current 64 mA TA Operating free-air temperature 70 °C 2 V V 0.8 0 V NOTE 1: Unused or floating inputs must be held high or low.
PAGE 4
SN74BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS041D − NOVEMBER 1989 − REVISED NOVEMBER 1993 2−4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 •
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PACKAGE OPTION ADDENDUM www.ti.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.