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| Part Number | DM74AS161N | DM74S161N | DM74AS163N | DM74AS161M |
|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter |
| Direction | Up | - | Up | Up |
| Number of Elements | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 4 | 4 | 4 | 4 |
| Reset | Asynchronous | - | Synchronous | Asynchronous |
| Timing | Synchronous | Synchronous | Synchronous | Synchronous |
| Count Rate | 75 MHz | 40 MHz | 75 MHz | 75 MHz |
| Trigger Type | Positive Edge | Positive Edge | Positive Edge | Positive Edge |
| Voltage - Supply | 4.5 V ~ 5.5 V | 4.75 V ~ 5.25 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 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Surface Mount |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 16-PDIP | 16-SOIC |
