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MC74AC138 - 1-of-8 Decoder / Demultiplexer

Download the MC74AC138 datasheet PDF. This datasheet also covers the MC74ACT138 variant, as both devices belong to the same 1-of-8 decoder / demultiplexer family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (MC74ACT138_ONSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number MC74AC138
Manufacturer onsemi
File Size 99.70 KB
Description 1-of-8 Decoder / Demultiplexer
Datasheet download datasheet MC74AC138 Datasheet

Full PDF Text Transcription for MC74AC138 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for MC74AC138. For precise diagrams, and layout, please refer to the original PDF.

MC74AC138, MC74ACT138 1-of-8 Decoder/Demultiplexer The MC74AC138/74ACT138 is a high−speed 1−of−8 decoder/demultiplexer. This device is ideally suited for high−speed bipol...

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oder/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 MC74AC138/74ACT138 devices or a 1−of−32 decoder using four MC74AC138/74ACT138 devices and one inverter. • Demultiplexing Capability • Multiple Input Enable for Easy Expansion • Active LOW Mutually Exclusive Outputs • Outputs Source/Sink 24 mA • ′ACT138 Has TTL Compatible Inputs • These are Pb−Free Devices VCC O0 O1 O2 O3 O4 O5 O6 16 15 14 13 12 11 10 9 123 A0 A1 A2 45 E1 E2 678 E3 O7 GND Figure 1.

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