Key facts
- Brand
- Fairchild
- Model
- 74F138
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-07
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National Semiconductor 54F/74F138 Datasheet
This document is a technical datasheet for the National Semiconductor 54F/74F138, a high-speed bipolar 1-of-8 decoder/demultiplexer. The device is designed for applications such as memory chip select address decoding and offers features like multiple input enables to facilitate parallel expansion.
Read onlineFairchild 74F138 specifications
| Device Type | 1-of-8 Decoder/Demultiplexer |
|---|---|
| ESD Protection | 4000V minimum |
| Supply Voltage (Commercial) | +4.5V to +5.5V |
| Operating Temperature (Military) | -55°C to +125°C |
| Input HIGH Voltage | 2.0V minimum |
All Fairchild 74F138 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the primary application of the 'F138?
It is ideally suited for high-speed bipolar memory chip select address decoding.
How can the device be expanded to a 1-of-32 decoder?
It requires four 'F138 devices and one inverter.
How many enable inputs does the 74F138 have?
It features three Enable inputs: two active LOW and one active HIGH.
From: Fairchild Semiconductor 74F138 1-of-8 Decoder/Demultiplexer Datasheet
What are the recommended operating supply voltage and temperature ranges?
The device operates with a supply voltage of +4.5V to +5.5V at free air ambient temperatures from 0°C to +70°C.
From: Fairchild Semiconductor 74F138 1-of-8 Decoder/Demultiplexer Datasheet
Are the outputs of the 74F138 active HIGH or active LOW?
All eight outputs are active LOW.
From: Fairchild 74F138 1-of-8 Decoder/Demultiplexer Datasheet