(PDF) HD74HC221 Datasheet - Dual Monostable Multivibrators (with Schmitt Trigger Input)

Número de pieza	HD74HC221
Descripción	Dual Monostable Multivibrators (with Schmitt Trigger Input)
Fabricantes	Hitachi Semiconductor
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No Preview Available ! HD74HC221 Dual Monostable Multivibrators (with Schmitt Trigger Input) 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 inpt that when taken low resets the one shot. The HD74HC221 can be triggered on the positive transition of teh 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 Function Table Inputs Outputs Clear A B Q Q LX X L H XH X L H XX L L H HL HH LH 1 page 19.20 20.00 Max 16 9 1 1.3 1.11 Max 8 Unit: mm 7.62 2.54 ± 0.25 0.48 ± 0.10 0.25 + – 0.13 0.05 0° – 15° Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 1.07 g 5 Page

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PDF HD74HC221 Data sheet ( Hoja de datos )