KK74HC257A is Quad 2-Input Data Selector/Multiplexer manufactured by Kodenshi AUK Group.
| Part Number | Description |
|---|---|
| KK74HC251A | 8-Input Data Selector/Multiplexer |
| KK74HC253A | Dual 4-Input Data Selector/Multiplexer |
| KK74HC258A | Quad 2-Input Data Selectors/Multiplexer |
| KK74HC20A | Dual 4-Input NAND Gate |
| KK74HC21A | Dual 4-Input AND Gate |
TECHNICAL DATA KK74HC257A Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Performance Silicon-Gate CMOS The KK74HC257A 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.
