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| PartNumber | HEF4526BT,652 | HEF4526BT,653 | HEF4526BT |
| Description | Counter ICs PROG 4B BCD DWN CNTR | Counter ICs PROGRMMABL 4-BIT BCD | |
| Manufacturer | NXP Semiconductors | NXP Semiconductors | - |
| Product Category | Logic - Counters, Dividers | Logic - Counters, Dividers | - |
| Series | 4000B | 4000B | - |
| Packaging | Tube | Tape & Reel (TR) | - |
| Package Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | - |
| Mounting Type | Surface Mount | Surface Mount | - |
| Direction | Down | Down | - |
| Voltage Supply | 4.5 V ~ 15.5 V | 4.5 V ~ 15.5 V | - |
| Supplier Device Package | 16-SO | 16-SO | - |
| Number of Elements | 1 | 1 | - |
| Logic Type | Binary Counter | Binary Counter | - |
| Number of Bits per Element | 4 | 4 | - |
| Reset | Asynchronous | Asynchronous | - |
| Timing | Synchronous | Synchronous | - |
| Count Rate | 32MHz | 32MHz | - |
| Trigger Type | Positive, Negative | Positive, Negative | - |