74LV123DB集成电路（IC）的多谐振荡器规格书PDF中文资料

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