IN74HC257A is Quad 2-1 Data Selector/Multiplexer manufactured by IK Semiconductor.
| Part Number | Description |
|---|---|
| IN74HC251A | 8-1 Data Selector/Multiplexer |
| IN74HC253A | Dual 4-1 Data Selector/Multiplexer |
| IN74HC258A | Quad 2-1 Data Selector/Multiplexer |
| IN74HC20A | Dual 4-Input NAND Gate |
| IN74HC21A | Dual 4-Input Positive-AND Gate |
TECHNICAL DATA IN74HC257A Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Performance Silicon-Gate CMOS The IN74HC257A is identical in pinout to the LS/ALS257. The device inputs are patible with standard CMOS outputs; with pullup resistors, they are patible with LS/ALSTTL outputs.
