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| PartNumber | HEF4557BT,653 | HEF4557BT,652 | HEF4557BT |
| Description | Counter Shift Registers 1-TO-64 BT VAR LNGTH | Counter Shift Registers 1-TO-64 BT VAR LNGTH | |
| Manufacturer | Nexperia | Nexperia | PHILIPS |
| Product Category | Counter Shift Registers | Counter Shift Registers | Logic - Shift Registers |
| RoHS | Y | Y | - |
| Counting Sequence | Serial to Serial | Serial to Serial | - |
| Number of Circuits | 1 | 1 | - |
| Number of Bits | 64 bit | 64 bit | - |
| Package / Case | SO-16 | SO-16 | - |
| Logic Family | HEF4000 | HEF4000 | - |
| Logic Type | CMOS | CMOS | - |
| Number of Input Lines | 2 | 2 | - |
| Propagation Delay Time | 65 ns | 65 ns | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 15.5 V | 15.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tube | - |
| Function | Shift Register | Shift Register | - |
| Width | 4 mm | 4 mm | - |
| Brand | Nexperia | Nexperia | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Output Lines | 1 | 1 | - |
| Operating Supply Voltage | 3.3 V, 5 V, 9 V, 12 V | 3.3 V, 5 V, 9 V, 12 V | - |
| Product Type | Counter Shift Registers | Counter Shift Registers | - |
| Factory Pack Quantity | 2500 | 50 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Part # Aliases | HEF4557BTD-T | HEF4557BTD | - |
| Unit Weight | 0.008818 oz | 0.008818 oz | - |