SN54LVTH16952, SN74LVTH16952

3.3-V ABT 16-BIT REGISTERED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS697G – JULY 1997 – REVISED APRIL 2000

1

POST OFFICE BOX 655303

Widebus

™ Family

Technology (ABT) Design for 3.3-V

Operation and Low Static-Power

Dissipation

Down to 2.7 V

Insertion

Need for External Pullup/Pulldown

Resistors

High-Speed Switching Noise

Layout

JESD 17

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

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

Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

description

with the capability to provide a TTL interface to a 5-V system environment.

These devices can be used as two 8-bit transceivers or one 16-bit transceiver. Data on the A or B bus is stored

in the registers on the low-to-high transition of the clock (CLKAB or CLKBA) input, provided that the clock-enable

(CLKENAB or CLKENBA) input is low. Taking the output-enable (OEAB or OEBA) input low accesses the data

on either port.

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

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

Copyright

© 2000, 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.

Widebus is a trademark of Texas Instruments.

SN54LVTH16952 . . . WD PACKAGE

SN74LVTH16952 ... DGG OR DL PACKAGE

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1OEAB

1CLKAB

1CLKENAB

GND

1A1

1A2

1A3

1A4

1A5

GND

1A6

1A7

1A8

2A1

2A2

2A3

GND

2A4

2A5

2A6

2A7

2A8

GND

2CLKENAB

2CLKAB

2OEAB

1OEBA

1CLKBA

1CLKENBA

GND

1B1

1B2

1B3

1B4

1B5

GND

1B6

1B7

1B8

2B1

2B2

2B3

GND

2B4

2B5

2B6

2B7

2B8

GND

2CLKENBA

2CLKBA

2OEBA

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.