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DM74LS221 |
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| Part Number | DM74LS221 |
| Manufacturer | National Semiconductor |
| Description | 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-l... |
| Features |
Y A dual highly stable one-shot
Y Compensated for VCC and temperature variations
Y Pin-out identical to ’LS123 (Note 1) Y Output pulse width range from 30 ns to 70 seconds Y Hysteresis provided at (B) input for added noise
immunity Y Direct reset terminates output pulse Y Triggerable from CLEAR input Y DTL TTL compatible Y Input clamp diodes
Note 1 The pin-out is identical to ’LS123 but functionally it is not refer to Operating Rules 10 in this datasheet
Functional Description
The basic output pulse width is determined by selection of an external resistor (RX) and capacitor (CX) Once triggere... |
| Document |
 DM74LS221 Data Sheet
PDF 130.10KB |
| Distributor | Stock | Price | Buy |
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| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | DM74LS22 |
National Semiconductor |
Dual 4-Input NAND Gates |
|
| 2 | DM74LS221 |
Fairchild Semiconductor |
Dual Non-Retriggerable One-Shot |
|
| 3 | DM74LS20 |
National Semiconductor |
Dual 4-Input NAND Gates |
|
| 4 | DM74LS20 |
Fairchild Semiconductor |
Dual 4-Input NAND Gate |
|
| 5 | DM74LS21 |
National Semiconductor |
Dual 4-Input AND Gates |
|