CD74HCT257
Description
The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a mon Select Input (S).
Key Features
- Buffered Inputs
- Typical Propagation Delay ( In to Output ) = 12ns at VCC = 5V, CL = 15pF, TA = 25oC
- Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
- Wide Operating Temperature Range . . . -55oC to 125oC
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction pared to LSTTL Logic ICs
- HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC
- 4.5V to 5.5V Operation - Direct LSTTL Input Logic patibility
