Key facts
- Brand
- Philips
- Model
- 74F257A
- Category
- multiplexer
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2014-06-04
Start here
PHILIPS 74F257A multiplexer
The 74F257A has four identical 2-input multiplexers with 3-State
outputs which select 4 bits of data from two sources uncer control of
a common Select (S) input. The I0a inputs are selected when the
common Select input is Low and the I1n inputs are selected when
the common Select input is High. Data appears at the outputs in true
non-inverted form from the selected inputs. The 74F257A is the logic
implementation of a 4-pole, 2-position switch where the position of
the switch is determined
Philips 74F257A specifications
| Supply Voltage (VCC) | 4.5V to 5.5V |
|---|---|
| Operating Temperature (Commercial) | 0°C to +70°C |
| Operating Temperature (Industrial) | -40°C to +85°C |
| Typical Propagation Delay | 4.3ns |
Source: PHILIPS 74F257A Quad 2-line to 1-line selector/multiplexer non-inverting (3-State) handbook
All Philips 74F257A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the function of the Output Enable (OE) input?
Outputs are forced to a high impedance “off” state when the Output Enable (OE) is High.
From: PHILIPS 74F257A Quad 2-line to 1-line selector/multiplexer non-inverting (3-State) handbook
Which inputs are selected when the common Select input is Low?
The I0a inputs are selected when the common Select input is Low.
From: PHILIPS 74F257A Quad 2-line to 1-line selector/multiplexer non-inverting (3-State) handbook