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| Part Number | 74F579SC | 74F579SJ | 74F779SC | 74F579SCX | 74F569SC | 74F579PC |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | onsemi | onsemi | National Semiconductor | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Obsolete |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter | Binary Counter | Binary Counter |
| Direction | Up, Down | Up, Down | Up, Down | Up, Down | Up, Down | Up, Down |
| Number of Elements | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 8 | 8 | 8 | 8 | 4 | 8 |
| Reset | Synchronous | Synchronous | Asynchronous | Synchronous | Asynchronous/Synchronous | Synchronous |
| Timing | - | - | - | - | - | - |
| Count Rate | - | - | 100 MHz | - | 90 MHz | - |
| Trigger Type | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Positive Edge |
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-SOIC | 20-SOP | 16-SOIC | 20-SOIC | 20-SOIC | 20-PDIP |
