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| Part Number | 74F191SC | 74F191SJ | 74F193SC | 74F191SCX | 74F190SC | 74F191PC |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | onsemi | onsemi | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Active |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter | Counter, Decade | - |
| Direction | Up, Down | Up, Down | Up, Down | Up, Down | Up, Down | - |
| Number of Elements | 1 | 1 | 1 | 1 | 1 | - |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 | - |
| Reset | - | - | Asynchronous | - | Asynchronous | - |
| Timing | Synchronous | Synchronous | - | Synchronous | Asynchronous | - |
| Count Rate | 100 MHz | 100 MHz | 125 MHz | 100 MHz | 125 MHz | - |
| Trigger Type | Positive Edge | Positive Edge | Positive Edge | Positive Edge | Negative 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 | - |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C (TA) | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - |
| Supplier Device Package | 16-SOIC | 16-SOP | 16-SOIC | 16-SOIC | 16-SOIC | - |
