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74LS221 Dual Monostable
74LS221
Texas Instrumentsic logic
The SN54221 and SN74221 are dual monostable multivibrators with Schmitt-trigger inputs, providing adjustable output pulse lengths for timing applications.
In stock
Specifications
2- Operating Voltage
- 5V Volts
- Package
- DIP Dual In-line Package
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | VCC | POWER | Power supply |
| 2 | 1R_ext/C_ext | GPIO | External resistor/capacitor input for timing control |
| 3 | 1CLR | GPIO | Clear input to terminate output pulse |
| 4 | 1Q | GPIO | Output Q of the first monostable multivibrator |
| 5 | 2Q | GPIO | Output Q of the second monostable multivibrator |
| 6 | 1C_ext | GPIO | External capacitor input for timing control |
| 7 | 2CLR | GPIO | Clear input to terminate output pulse of the second multivibrator |
| 8 | GND | GND | Ground reference |
Interactive pinout
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74LS221
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