The MC74HC4538A 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 Q output high, regardless of the state of the output pulse circuitry.
●Features
●• 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 μA
●• 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
