General Description
The DM74121 is a monostable multivibrator featuring both positive and negative edge triggering with complementary outputs.
   
Features
■ Triggered from active-HIGH transition or active-LOW
    transition inputs
■ Variable pulse width from 30 ns to 28 seconds
■ Jitter free Schmitt-trigger input
■ Excellent noise immunity typically 1.2V
■ Stable pulse width up to 90% duty cycle
■ TTL, DTL compatible
■ Compensated for VCC and temperature variations
■ Input clamp diodes