74221 Datasheet | Hitachi Semiconductor

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...