NXP 74HCT257N 芯片, 74HCT CMOS逻辑器件
The is a 2-input Quad Multiplexer with 3-state output. This high-speed Si-gate CMOS device is pin compatible with low-power Schottky TTL LSTTL. It has four identical 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input S. The data inputs from source 0 1I0 to 4I0 are selected when input S is low and the data inputs from source 1 1I1 to 4I1 are selected when S is high. Data appears at the outputs 1Y to 4Y in true non-inverting form from the selected inputs. It is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S. The outputs are forced to a high-impedance OFF-state when OE\ is high.
电源电压DC 4.50V min
输出接口数 4
触点类型 DPST
针脚数 16
逻辑门个数 4
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压Max 5.5 V
电源电压Min 4.5 V
安装方式 Through Hole
引脚数 16
封装 DIP
封装 DIP
产品生命周期 Unknown
包装方式 Each
制造应用 Computers & Computer Peripherals, Consumer Electronics, Industrial
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/12/17