The MC74HC4538AF is identical in pinout to the MC14538B. The device inputs are compatible with standard CMOS outputs; with pullup 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-input 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 Qbar output high, regardless of the state of the output pulse circuitry.
Feature
Unlimited Rise and Fall Times Allowed on the Trigger Inputs
Output Pulse is Independent of the Trigger Pulse Width
+/- 10% Guaranteed Pulse Width Variation from Part to Part (Using the Same Test Jig)
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS and TTL
Operating Voltage Range: 3.0 to 6.0 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the Requirements Defined by JEDEC Standard No. 7A
Chip Complexity: 145 FETs or 36 Equivalent Gates
Pb-Free Packages are Available*
Catalogue
FPGA / CPLD
Memory
MOS 
MCU 
DSP
OCEP
Secondary 
Other 
