具有同向三态输出的高速 CMOS 逻辑四路 2 输入多路复用器
The HC257 and HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input S. The Output Enable input OE\\ is active LOW. When OE\ is HIGH, all of the outputs 1Y-4Y are in the high impedance state regardless of all other input conditions.
Moving data from two groups of registers to four common output buses is a common use of the 257. The state of the Select input determines the particular register from which the data comes. It can also be used as a function generator.
Data sheet acquired from Harris Semiconductor
型号 | 品牌 | 下载 |
---|---|---|
CD74HC257 | TI 德州仪器 | 下载 |
CD74ACT541M96 | TI 德州仪器 | 下载 |
CD74HC125M | TI 德州仪器 | 下载 |
CD74AC541M | TI 德州仪器 | 下载 |
CD74AC541M96 | TI 德州仪器 | 下载 |
CD74HC125M96 | TI 德州仪器 | 下载 |
CD74ACT05M | TI 德州仪器 | 下载 |
CD74ACT244M | TI 德州仪器 | 下载 |
CD74HC244E | TI 德州仪器 | 下载 |
CD74HC244M | TI 德州仪器 | 下载 |
CD74HC541E | TI 德州仪器 | 下载 |