CD54HC257F3A 供应商
-
CD54HC257F3A
品牌：TI 封装/批号：/0
CD54HC257F3A 属性参数
- 现有数量：0现货3,038Factory
- 价格：在售
- 系列：*
- 包装：管件
- 产品状态：在售
- 类型：-
- 电路：-
- 独立电路：-
- 电流 - 输出高、低：-
- 供电电压源：-
- 电压 - 供电：-
- 工作温度：-
- 安装类型：-
- 封装/外壳：-
- 供应商器件封装：-
产品特性
- Buffered Inputs
- Typical Propagation Delay (In to Output) = 12ns at VCC = 5V, CL = 15pF, TA = 25°C
- Fanout (Over Temperature Range) Standard Outputs...10 LSTTL Loads Bus Driver Outputs...15 LSTTL Loads
- Standard Outputs...10 LSTTL Loads
- Bus Driver Outputs...15 LSTTL Loads
- Wide Operating Temperature Range...–55°C to 125°C
- Balanced Propagation Delay and Transition Times
- Significant Power Reduction Compared to LSTTL Logic ICs
- HC Types 2V to 6V Operation High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- 2V to 6V Operation
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
- HCT Types 4.5V to 5.5V Operation Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min) CMOS Input Compatibility, Il 1µA at VOL, VOH
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
- CMOS Input Compatibility, Il 1µA at VOL, VOH
产品概述
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.
CD54HC257F3A