MC74HC4538ADG Datasheet PDF - ON Semiconductor

The MC74HC4538ADG is a dual precision Monostable Multivibrator identical in pinout to the MC14538B. The device inputs are compatible with standard CMOS outputs, with pull-up resistors, they are compatible with LSTTL outputs. This dual monostable multivibrator may be triggered by either the positive or the negative edge of an input pulse and produces a precision output pulse over a wide range of pulse widths. Because the device has conditioned trigger inputs, there are no trigger-inputs rise and fall time restrictions. The output pulse width is determined by the external timing components, Rx and Cx. The device has a reset function which forces the Q output low and the Q\ output high, regardless of the state of the output pulse circuitry.

● Unlimited rise and fall times allowed on the trigger inputs

● Output pulse is independent of the trigger pulse width

● Outputs directly interface to CMOS, NMOS and TTL

● High noise immunity characteristic of CMOS devices

● In compliance with the requirements defined by JEDEC standard no. 7A

● ±10% Guaranteed pulse width variation from part to part (using the same test jig)

● 10 LSTTL Load output drive capability

● 1mA Low input current