| PartNumber | SN74HCT645DWR | SN74HCT645DW | SN74HCT645DWG4 |
| Description | Bus Transceivers Octal Bus Trnscvrs With 3-State Outputs | Bus Transceivers Tri-State Octal Bus | Bus Transceivers Octal Bus Transceivr |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Bus Transceivers | Bus Transceivers | Bus Transceivers |
| RoHS | Y | Y | Y |
| Logic Family | HCT | HCT | HCT |
| Input Level | TTL | TTL | TTL |
| Output Level | CMOS | CMOS | CMOS |
| Output Type | 3-State | 3-State | 3-State |
| High Level Output Current | - 6 mA | - 6 mA | - 6 mA |
| Low Level Output Current | 6 mA | 6 mA | 6 mA |
| Propagation Delay Time | 25 ns | 25 ns | 25 ns |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Package / Case | SOIC-20 | SOIC-20 | SOIC-20 |
| Packaging | Reel | Tube | Tube |
| Function | Bus Transceiver | Tri-State Octal Bus | Bus Transceiver |
| Height | 2.35 mm | 2.35 mm | 2.35 mm |
| Length | 12.8 mm | 12.8 mm | 12.8 mm |
| Number of Circuits | 8 | 8 | 1 |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - 40 C to + 85 C |
| Product | Standard Transceiver | Standard Transceiver | Standard Transceiver |
| Series | SN74HCT645 | SN74HCT645 | SN74HCT645 |
| Technology | CMOS | CMOS | CMOS |
| Width | 7.52 mm | 7.52 mm | 7.52 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Number of Channels | 8 | 8 | 8 |
| Supply Current Max | 8 uA | 8 uA | 8 uA |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 5 V |
| Polarity | Non-Inverting | Non-Inverting | Non-Inverting |
| Product Type | Bus Transceivers | Bus Transceivers | Bus Transceivers |
| Factory Pack Quantity | 2000 | 25 | 25 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.017662 oz | 0.017662 oz | 0.017662 oz |