| Part Number | MM74HC161N | MM74HC191N |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | National Semiconductor |
| Category | Logic - Counters, Dividers | Logic - Counters, Dividers |
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| Product Status | Obsolete | Active |
| Logic Type | Binary Counter | - |
| Direction | Up | - |
| Number of Elements | 1 | - |
| Number of Bits per Element | 4 | - |
| Reset | Asynchronous | - |
| Timing | Synchronous | - |
| Count Rate | 40 MHz | - |
| Trigger Type | Positive Edge | - |
| Voltage - Supply | 2 V ~ 6 V | - |
| Operating Temperature | -55°C ~ 125°C | - |
| Mounting Type | Through Hole | - |
| Package / Case | 16-DIP (0.300", 7.62mm) | - |
| Supplier Device Package | 16-PDIP | - |