DESCRIPTION

The 74VHCT238A is an advanced high-speed CMOS 3 TO 8 LINE DECODER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

■ HIGH SPEED: tPD = 8 ns (TYP.) at VCC = 5V

■ LOW POWER DISSIPATION:

ICC =4 µA (MAX.) at TA = 25 oC

■ COMPATIBLEWITH TTL OUTPUTS:

VIH = 2V (MIN), VIL = 0.8V(MAX)

■ POWERDOWN PROTECTIONON INPUTS &

OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 8 mA (MIN)

■ BALANCEDPROPAGATIONDELAYS:

tPLH ≅ tPHL

■ OPERATING VOLTAGERANGE:

VCC (OPR)= 4.5V to 5.5V

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 238

■ IMPROVED LATCH-UP IMMUNITY

74VHCT238AM属于集成电路（IC） > 信号开关，多路复用器，解码器。意法半导体（ST）集团制造生产的74VHCT238AM信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。