The MC74H*538A 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, R
x
and C
x
. 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.
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Unlimited Rise and Fall Times Allowed on the Trigger Inputs
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Output Pulse is Independent of the Trigger Pulse Width
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10% Guaranteed Pulse Width Variation from Part to Part (Using
the Same Test Jig)
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Output Drive Capability: 10 LSTTL Loads
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Outputs Directly Interface to CMOS, NMOS and TTL
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Operating Voltage Range: 3.0 to 6.0 V
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Low Input Current: 1.0
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A
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High Noise Immunity Characteristic of CMOS Devices
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In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
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Chip Complexity: 145 FETs or 36 Equivalent Gates
