| Part Number | 74LS221 Datasheet |
|---|---|
| Manufacturer | onsemi |
| Overview | SN74LS221 Dual Monostable Multivibrators with Schmitt-Trigger Inputs Each multivibrator of the LS221 features a negative-transitiontriggered input and a positive-transition-triggered input either of w. a negative-transitiontriggered input and a positive-transition-triggered input either of which can be used as an inhibit input. Pulse triggering occurs at a voltage level and is not related to the transition time of the input pulse. Schmitt-trigger input circuitry for B input allows jitter-free trig. |
74LS221 Datasheet and Specifications PDF
The 74LS221 is a Dual Monostable Multivibrators.
| Part Number | 74LS221 Datasheet |
|---|---|
| Description | Dual Non-Retriggerable One-Shot |
| Manufacturer | Fairchild Semiconductor |
| Overview | The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-edge or trailing-edge triggering. Pin (A) is an active. s A dual, highly stable one-shot s Compensated for VCC and temperature variations s Pin-out identical to DM74LS123 (Note 1) s Output pulse width range from 30 ns to 70 seconds s Hysteresis provided at (B) input for added noise immunity s Direct reset terminates output pulse s Triggerable from CLEAR . |