HD74ACT138 datasheet(1/11 Pages) HITACHI

Part #	HD74ACT138

Description	1-of-8 Decoder/Demultiplexer

PDF	11 Pages

Scroll/Zoom	100%

Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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1 / 11 page

HD74AC138/HD74ACT138

1-of-8 Decoder/Demultiplexer

Description

The HD74AC138/HD74ACT138 is a high-speed 1-of-8 decoder/demultiplexer. This device is ideally

suited for high-speed bipolar memory chip select address decoding. The multiple input enables allow

parallel expansion to a 1-of-24 decoder using just three HD74AC138/HD74ACT138 devices or a 1-of-32

decoder using four HD74AC138/HD74ACT138 devices and one inverter.

Features

• Demultiplexing Capability

• Multiple Input Enable for Easy Expansion

• Active LOW Mutually Exclusive Outputs

• Outputs Source/Sink 24 mA

• HD74ACT138 has TTL-Compatible Inputs

Similar Part No. - HD74ACT138

Manufacturer	Part #	Datasheet	Description
Hitachi Semiconductor	HD74ACT139	61Kb / 10P	Dual 1-of-4 Decoder/Demultiplexer

Manufacturer	Part #	Datasheet	Description
Motorola, Inc	SN54LS138	185Kb / 5P	1-OF-8 DECODER/ DEMULTIPLEXER
National Semiconductor ...	54F138DM	174Kb / 10P	1-of-8 Decoder/Demultiplexer
National Semiconductor ...	54FCT138	174Kb / 7P	1-of-8 Decoder/Demultiplexer
NXP Semiconductors	74ALS138	76Kb / 8P	1-of-8 decoder/demultiplexer 1996 Jul 03
Fairchild Semiconductor	74AC138	100Kb / 9P	1-of-8 Decoder/Demultiplexer
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Integral Corp.	IN74HCT138A	144Kb / 5P	1-OF-8 DECODER/DEMULTIPLEXER
ON Semiconductor	MC74HC238A	142Kb / 9P	1-of-8 Decoder/ Demultiplexer June, 2013 ??Rev. 4
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