Description
The M74HC4538 is a high speed CMOS monostable multivibrator fabricated with silicon gate C2MOS technology.
Each multivibrator 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 repeatedly while their outputs are generating a pulse and the pulse will be extended. Pulse width stability over a wide range of temperature and supply is achieved using linear CMOS techniques.

FEATUREs
■ High speed: tPD = 25 ns (typ.) at VCC = 6 V
■ Low power dissipation
    standby state: ICC = 4 μA (max.) at TA = 25 °C
    active state: ICC = 200 μA (max.) at VCC = 6 V
■ High noise immunity: VNIH = VNIL = 28 % VCC (min.)
■ Symmetrical output impedance: |IOH| = IOL = 4 mA (min.)
■ Balanced propagation delays: tPLH ≅ tPHL
■ Wide operating voltage range: VCC (opr) = 2 to 6 V
■ Wide output pulse width range: tWOUT = 120 ns ~ 60 s over at VCC = 4.5 V
■ Pin and function compatible with 74 series 4538