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| PartNumber | 74HC640D | 74HC640DB | 74HC640D-T |
| Description | Bus Transceivers OCTAL BUS TRANSCVR INV 3-S | Bus Transceivers OCTAL BUS XCVR 3ST INVERTING | Bus Transceivers OCTAL BUS TRANSCVR |
| Manufacturer | PHI | - | - |
| Product Category | Logic - Buffers, Drivers, Receivers, Transceivers | - | - |