| Manufacturer | Part Number | Description |
|---|---|---|
Philips Semiconductors (now NXP Semiconductors) |
74HCT221 | Dual non-retriggerable monostable multivibrator |
Texas Instruments |
CD74HCT221 | Dual Monostable Multivibrator |
Nexperia |
74HCT221 | Dual non-retriggerable monostable multivibrator |
