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54AC245 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54AC245
Description  Octal Bidirectional Transceiver with TRI-STATE Inputs/Outputs
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54AC245 Datasheet(HTML) 1 Page - National Semiconductor (TI)

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54AC245
54ACT245
Octal Bidirectional Transceiver with TRI-STATE®
Inputs/Outputs
General Description
The ’AC/’ACT245 contains eight non-inverting bidirectional
buffers with TRI-STATE outputs and is intended for
bus-oriented applications. Current sinking capability is
24 mA at both the A and B ports. The Transmit/Receive (T/R)
input determines the direction of data flow through the bidi-
rectional transceiver. Transmit (active-HIGH) enables data
from A ports to B ports; Receive (active-LOW) enables data
from B ports to A ports. The Output Enable input, when
HIGH, disables both A and B ports by placing them in a HIGH
Z condition.
Features
n ICC and IOZ reduced by 50%
n Noninverting buffers
n Bidirectional data path
n A and B outputs source/sink 24 mA
n ’ACT245 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC245: 5962-87758
— ’ACT245: 5962-87663
Logic Symbols
Pin
Description
Names
OE
Output Enable Input
T/R
Transmit/Receive Input
A
0–A7
Side A TRI-STATE Inputs or TRI-STATE Outputs
B
0–B7
Side B TRI-STATE Inputs or TRI-STATE Outputs
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
DS100283-1
IEEE/IEC
DS100283-2
August 1998
© 1998 National Semiconductor Corporation
DS100283
www.national.com


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