74HC4538 Datasheet - ST Microelectronics

74HC4538 Dual retriggerable precision monostable multivibrator

M54HC4538 M74HC4538 DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR . . . . . . . . HIGH SPEED tPD = 25 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION STANDBY STATEICC =4 µA (MAX.) AT TA = 25 °C ACTIVE STATE ICC = 200 µA (TYP.) AT VCC = 5 V HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OUTPUT PULSE WIDTH RANGE tWOUT = 120 ns ~ 60 s OVER AT VCC = 4.5 V OUTPUT PULSE WIDTH INDEPENDENT FROM TRIGGER INPUT PULSE WIDTH .

74HC4538 Features

* both a negative, A, and a positive, B, edge triggered input, either of which can be used as an inhibit input. Also included is a clear input that when taken low resets the one shot. The monostable multivibrators are retriggerable. That is, they may be triggered reapeatedly while their outputs are ge

74HC4538 Datasheet (288.93 KB)