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DESCRIPTION/ORDERING INFORMATION (CONTINUED)

B

DIR

5

4

A

3

SN74AVCH1T45

SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES598D – JULY 2004 – REVISED JANUARY 2008

preventing damaging current backflow through the device when it is powered down.

state. The bus-hold circuitry on the powered-up side always stays active.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.

NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the

package.

FUNCTION TABLE

INPUT

OPERATION

DIR

L

B data to A bus

H

A data to B bus

LOGIC DIAGRAM (POSITIVE LOGIC)

2

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