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| Part Number | CD74HC161E | CD74HC163E | CD74HC161M | CD74HC191E | CD74AC161E |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Harris Corporation | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Obsolete | Active | Active |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter | Binary Counter |
| Direction | Up | Up | Up | Up, Down | Up |
| Number of Elements | 1 | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 |
| Reset | Asynchronous | Synchronous | Asynchronous | - | Asynchronous |
| Timing | Synchronous | Synchronous | Synchronous | Synchronous | Synchronous |
| Count Rate | 24 MHz | 24 MHz | 24 MHz | 35 MHz | 90 MHz |
| Trigger Type | Negative Edge | Negative Edge | Negative Edge | Positive Edge | Positive Edge |
| Voltage - Supply | 2 V ~ 6 V | 2 V ~ 6 V | 2 V ~ 6 V | 2 V ~ 6 V | 1.5 V ~ 5.5 V |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Through Hole | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 16-SOIC | 16-PDIP | 16-PDIP |
