SN54LVTH245A, SN74LVTH245A

3.3-V ABT OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS130P – MAY 1992 – REVISED APRIL 1999

1

POST OFFICE BOX 655303

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

JESD 17

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

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

Small-Outline (DW), Shrink Small-Outline

(DB), and Thin Shrink Small-Outline (PW)

Packages, Ceramic Chip Carriers (FK),

Ceramic Flat (W) Packages, and Ceramic

(J) DIPs

description

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

These devices are designed for asynchronous communication between data buses. They transmit data from

the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)

input. The output-enable (OE) input can be used to disable the devices so the buses are effectively isolated.

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.

disables the outputs, preventing damaging current backflow through the devices when they are powered down.

The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

The SN54LVTH245A is characterized for operation over the full military temperature range of –55

°C to 125°C.

The SN74LVTH245A is characterized for operation from –40

°C to 85°C.

Copyright

© 1999, 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.

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.

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.

SN54LVTH245A ...J OR W PACKAGE

SN74LVTH245A . . . DB, DW, OR PW PACKAGE

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B1

B2

B3

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B5

A3

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A5

A6

A7

SN54LVTH245A . . . FK PACKAGE

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DIR

A1

A2

A3

A4

A5

A6

A7

A8

GND

OE

B1

B2

B3

B4

B5

B6

B7

B8