| PartNumber | SN74HCT645N | SN74HCT645NG4 | SN74HCT645NSR |
| Description | Bus Transceivers Tri-State Octal Bus | IC TRANSCVR NON-INVERT 5.5V 20SO | |
| Manufacturer | Texas Instruments | - | - |
| Product Category | Bus Transceivers | - | - |
| RoHS | Y | - | - |
| Logic Family | HCT | - | - |
| Input Level | TTL | - | - |
| Output Level | CMOS | - | - |
| Output Type | 3-State | - | - |
| High Level Output Current | - 6 mA | - | - |
| Low Level Output Current | 6 mA | - | - |
| Propagation Delay Time | 25 ns | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Package / Case | PDIP-20 | - | - |
| Packaging | Tube | - | - |
| Function | Tri-State Octal Bus | - | - |
| Height | 4.57 mm | - | - |
| Length | 24.33 mm | - | - |
| Number of Circuits | 8 | - | - |
| Operating Temperature Range | - 40 C to + 85 C | - | - |
| Product | Standard Transceiver | - | - |
| Series | SN74HCT645 | - | - |
| Technology | CMOS | - | - |
| Width | 6.35 mm | - | - |
| Brand | Texas Instruments | - | - |
| Mounting Style | Through Hole | - | - |
| Number of Channels | 8 | - | - |
| Supply Current Max | 8 uA | - | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | - | - |
| Polarity | Non-Inverting | - | - |
| Product Type | Bus Transceivers | - | - |
| Factory Pack Quantity | 20 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.042297 oz | - | - |