General description

The 74LV123 is a low-voltage Si-gate CMOS device and is pin and function compatible with the 74HC123; 74HCT123.

Features and benefits

■ Optimized for low-voltage applications: 1.0 V to 5.5 V

■ Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V

■ Typical output ground bounce: < 0.8 V at VCC = 3.3 V and Tamb = 25°C

■ Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and

Tamb = 25°C

■ DC triggered from active HIGH or active LOW inputs

■ Retriggerable for very long pulses up to 100 duty factor

■ Direct reset terminates output pulses

■ Schmitt-trigger action on all inputs except for the reset input

74LV123D属于集成电路（IC） > 多谐振荡器。恩智浦半导体公司制造生产的74LV123D多谐振荡器多谐振荡器是简单的双态器件，尽管它们的典型使用方式在很大程度上具有模拟特性，但通常被认为是数字逻辑元器件。单稳型也称为“单发”，具有一种稳定状态；但施加触发信号可使它们离开此状态一段时间，该时间通常由所连接电容器的值来确定。这些器件对于去弹跳开关触头等应用非常有用。非稳型没有稳定状态，在两个状态之间按一定频率持续转换，该频率通常也是由所连接电容器的值来确定。