| PartNumber | SN74HCT645NSRG4 | SN74HCT645NSRE4 | SN74HCT645NSR |
| Description | Bus Transceivers Octal Bus Transceivr | Bus Transceivers Octal Bus Trnscvrs With 3-State Outputs | IC TRANSCVR NON-INVERT 5.5V 20SO |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Bus Transceivers | Bus Transceivers | - |
| RoHS | Y | Y | - |
| Logic Family | 74HCT | 74HCT | - |
| Input Level | TTL | TTL | - |
| Output Level | CMOS | CMOS | - |
| Output Type | 3-State | 3-State | - |
| High Level Output Current | - 6 mA | - 6 mA | - |
| Low Level Output Current | 6 mA | 6 mA | - |
| Propagation Delay Time | 25 nS | 30 ns | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Package / Case | SO-20 | SO-20 | - |
| Packaging | Reel | Reel | - |
| Function | Bus Transceiver | Bus Transceiver | - |
| Height | 1.95 mm | 1.95 mm | - |
| Length | 12.6 mm | 12.6 mm | - |
| Number of Circuits | 1 | 8 | - |
| Product | CMOS | CMOS | - |
| Technology | CMOS | CMOS | - |
| Width | 5.3 mm | 5.3 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Number of Channels | 8 | 8 | - |
| Supply Current Max | 8 uA | 8 uA | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | - |
| Polarity | Non-Inverting | Non-Inverting | - |
| Product Type | Bus Transceivers | Bus Transceivers | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.009408 oz | 0.009408 oz | - |