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| Part Number | MM74HC221AM | MM74HC221AN | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Product Status | Obsolete | Obsolete | 
| Logic Type | Monostable | Monostable | 
| Independent Circuits | 2 | 2 | 
| Schmitt Trigger Input | Yes | Yes | 
| Propagation Delay | 22 ns | 22 ns | 
| Current - Output High, Low | 5.2mA, 5.2mA | 5.2mA, 5.2mA | 
| Voltage - Supply | 2 V ~ 6 V | 2 V ~ 6 V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Through Hole | 
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 16-SOIC | 16-PDIP |