Monostable Multivibrator Dual 16-Pin SO T/R

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 The output pulse equation is simply: PW = 0.7 (R)(C) where PW is in seconds, R in Omhs and C is in Farads< p> All inputs are equipped with protection circuits against static discharge and transient excess voltage.

• 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 =6V
• 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