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| Part Number | CD74HCT161E | CD74HCT163E | CD74HCT161M | CD74HCT191E | CD74HCT161EX | CD74HCT162E |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Harris Corporation | Texas Instruments | Harris Corporation | Harris Corporation |
| Product Status | Active | Active | Obsolete | Active | Active | Active |
| Logic Type | Binary Counter | Binary Counter | Binary Counter | Binary Counter | Binary Counter | BCD Counter, Decade |
| Direction | Up | Up | Up | Up, Down | Up | Up |
| Number of Elements | 1 | 1 | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 | 4 |
| Reset | Asynchronous | Synchronous | Asynchronous | - | Asynchronous | Synchronous |
| Timing | Synchronous | Synchronous | Synchronous | Synchronous | Synchronous | Synchronous |
| Count Rate | 20 MHz | 20 MHz | 20 MHz | 30 MHz | 20 MHz | 30 MHz |
| Trigger Type | Negative Edge | Negative Edge | Negative Edge | Positive Edge | Negative Edge | Positive, Negative |
| 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 | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Through Hole | 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) | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 16-SOIC | 16-PDIP | 16-PDIP | 16-PDIP |
