74123工具的螺絲螺母起子-刀頭、刀片手柄規(guī)格書PDF中文資料

General Description

The DM74123 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 activeHIGH transition trigger input. A LOW at the clear (CLR) input terminates the output pulse: which also inhibits triggering.

Features

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

■Retriggerable to 100 duty cycle

■Direct reset terminates output pulse

■Compensated for VCCand temperature variations

■DTL, TTL compatible

■Input clamp diodes