| PartNumber | 74FCT2574CTSOCTE4 | 74FCT2543CTSOCTG4 | 74FCT2574CTSOCTG4 |
| Description | Flip Flops Octal D-Type Rgstr with 3-State Output | Bus Transceivers Octal Reg Trans | Flip Flops Octal D-Type Reg |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Flip Flops | Bus Transceivers | Flip Flops |
| RoHS | Y | Y | Y |
| Number of Circuits | 1 | 1 | 1 |
| Logic Family | 74FCT | FCT | FCT |
| Logic Type | Register | - | CMOS |
| Polarity | Non-Inverting | Non-Inverting | Non-Inverting |
| Input Type | Single-Ended | - | Single-Ended |
| Output Type | Single-Ended | 3-State | Single-Ended |
| Propagation Delay Time | 5.2 ns | 5.5 ns | 5.2 ns |
| High Level Output Current | - 15 mA | - 15 mA | - 15 mA |
| Low Level Output Current | 12 mA | 12 mA | 12 mA |
| Supply Voltage Min | 4.75 V | 4.75 V | 4.75 V |
| Supply Voltage Max | 5.25 V | 5.25 V | 5.25 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-20 | SOIC-24 | SOIC-20 |
| Packaging | Reel | Reel | Reel |
| Function | D-Type Bus Interface | Latched Transceiver | D-Type Bus Interface |
| Height | 2.35 mm | 2.35 mm | 2.35 mm |
| Length | 12.8 mm | 15.4 mm | 12.8 mm |
| Width | 7.52 mm | 7.52 mm | 7.52 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 8 | 8 | 8 |
| Number of Input Lines | 8 | - | 8 |
| Number of Output Lines | 3 | - | 8 |
| Operating Supply Voltage | 4.75 V to 5.25 V | 5 V | 5 V |
| Product Type | Flip Flops | Bus Transceivers | Flip Flops |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.028254 oz | 0.022025 oz | 0.028254 oz |
| Input Level | - | TTL | - |
| Output Level | - | TTL | - |
| Product | - | CMOS | - |
| Technology | - | CMOS | - |