Dual Monostable Multivibrators
HD74HC221
Dual Monostable Multivibrators (with Schmitt Trigger Input)
REJ03D0591–0200 (Previous ADE-205-468)
Rev.2.00 J...
Description
HD74HC221
Dual Monostable Multivibrators (with Schmitt Trigger Input)
REJ03D0591–0200 (Previous ADE-205-468)
Rev.2.00 Jan 31, 2006
Description
Each multivibrator features both a negative, A, and a positive, B, transition triggered input, either of which can be used as an inhibit. Also included is a clear input that when taken low resets the one shot. The HD74HC221 can be triggered on the positive transition of the clear while A is held low and B is held high.
This device is a non-retriggerable, and therefore cannot be retriggered until the output pulse times out.
The output pulse equation is simply:
tW = 0.7·(Rext)·(Cext)
Features
High Speed Operation
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max
Low Quiescent Supply Current
Ordering Information
Part Name
Package Type
Package Code (Previous Code)
Package Abbreviation
HD74HC221P
DILP-16 pin
PRDP0016AE-B (DP-16FV)
P
HD74HC22...
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