Key facts
- Brand
- Philips
- Model
- 74F139
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-06
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Philips 74F139 Dual 1-of-4 Decoder/Demultiplexer Datasheet
The Philips 74F139 is a high-speed, dual 1-of-4 decoder/demultiplexer containing two independent decoders. Each decoder accepts two binary weighted inputs and provides four mutually exclusive active-Low outputs. The device features an active-Low Enable input that can also function as the data input for demultiplexing applications.
Read onlinePhilips 74F139 specifications
| Supply voltage (recommended) | 4.5 V – 5.5 V |
|---|---|
| High‑level input voltage (Vih) | 2.0 V |
| Low‑level input voltage (Vil) | 0.8 V |
| High‑level output current | -1 mA |
| Low‑level output current | 20 mA |
| Unit load definition | 20 µA (high) / 0.6 mA (low) |
Source: Philips 74F139 Dual 1‑of‑4 Decoder/Demultiplexer Datasheet
All Philips 74F139 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the function of the Enable input?
The active-Low Enable (E) forces every output High when High, but can also be used as the Data input for a 1-of-4 demultiplexer application.
From: Philips 74F139 Dual 1-of-4 Decoder/Demultiplexer Datasheet
How many independent decoders does the device contain?
The device contains two independent decoders.
From: Philips 74F139 Dual 1-of-4 Decoder/Demultiplexer Datasheet
What is the unit load definition for the 74F139?
One unit load is defined as 20 µA when the output is high and 0.6 mA when the output is low.
From: Philips 74F139 Dual 1‑of‑4 Decoder/Demultiplexer Datasheet
What are the recommended supply voltage limits?
The recommended supply voltage range is 4.5 V to 5.5 V, with a typical value of 5.0 V.
From: Philips 74F139 Dual 1‑of‑4 Decoder/Demultiplexer Datasheet