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| PartNumber | M74HC4520RM13TR | M74HC4520B1 | M74HC4520B1R |
| Description | Counter Shift Registers Dual 4-Bit Binary | Counter, Up, 4 Bit Binary, 16 Pin, Plastic, DIP | Counter Dual 4-Bit Binary UP 16-Pin PDIP Tube (Alt: M74HC4520B1R) |
| Manufacturer | STMicroelectronics | - | - |
| Product Category | Counter Shift Registers | - | - |
| RoHS | Y | - | - |
| Counter Type | Binary | - | - |
| Counting Sequence | Up | - | - |
| Number of Circuits | 2 | - | - |
| Number of Bits | 4 bit | - | - |
| Package / Case | SO-16 | - | - |
| Logic Family | 74HC | - | - |
| Logic Type | CMOS | - | - |
| Number of Input Lines | 1 | - | - |
| Propagation Delay Time | 160 ns, 32 ns, 27 ns | - | - |
| Supply Voltage Max | 6 V | - | - |
| Minimum Operating Temperature | - 55 C | - | - |
| Maximum Operating Temperature | + 125 C | - | - |
| Packaging | Reel | - | - |
| Function | The M74HC4520 is an high speed CMOS | - | - |
| Series | M74HC4520 | - | - |
| Width | 4 mm | - | - |
| Brand | STMicroelectronics | - | - |
| Mounting Style | SMD/SMT | - | - |
| Number of Output Lines | 4 | - | - |
| Operating Supply Voltage | 2 V to 6 V | - | - |
| Product Type | Counter Shift Registers | - | - |
| Factory Pack Quantity | 2500 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.007079 oz | - | - |