DM74LS123MX

74系列逻辑芯片/DM74LS123MX

General Description

The DM74LS123 is a dual retriggerable monostable multivibrator capable of generating output pulses from a few nano-seconds to extremely long duration up to 100% duty cycle. Each device has three inputs permitting the choice of either leading edge or trailing edge triggering. Pin A is an active-LOW transition trigger input and pin B is an active HIGH transition trigger input.

Features

■ DC triggered from active-HIGH transition or active-LOW

transition inputs

■ Retriggerable to 100% duty cycle

■ Compensated for VCC and temperature variations

■ Triggerable from CLEAR input

■ DTL, TTL compatible

■ Input clamp diodes