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| Part Number | MC14521BD | MC14521BDG | MC14521BF | 
|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | 
| Product Status | Obsolete | Active | Active | 
| Logic Type | Divide-by-2 | Divide-by-2 | - | 
| Direction | - | - | - | 
| Number of Elements | 1 | 1 | - | 
| Number of Bits per Element | 24 | 24 | - | 
| Reset | Asynchronous | Asynchronous | - | 
| Timing | - | - | - | 
| Count Rate | 12 MHz | 12 MHz | - | 
| Trigger Type | Negative Edge | Negative Edge | - | 
| Voltage - Supply | 3 V ~ 18 V | 3 V ~ 18 V | - | 
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | - | 
| Mounting Type | Surface Mount | Surface Mount | - | 
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - | 
| Supplier Device Package | 16-SOIC | 16-SOIC | - |