| Part Number | 74LS221 |
| Manufacturer | Fairchild Semiconductor |
| Title | Dual Non-Retriggerable One-Shot |
| Description | The DM74LS221 is a dual monostable multivibrator with Schmitt-trigger input. Each device has three inputs permitting the choice of either leading-... |
| Features |
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...
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| Datasheet |
 74LS221 Datasheet
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