| PartNumber | SN74HCT157D | SN74HCT157DE4 | SN74HCT157DG4 |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-to-1 Data | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-1-Line Data Selectors/Mltplxrs | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2Ln To 1Ln Data Selector Multiplexer |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | Y |
| Product | Selectors / Multiplexers | Selectors / Multiplexers | Selectors / Multiplexers |
| Logic Family | HCT | HCT | HCT |
| Number of Bits | 4 bit | 4 bit | - |
| Number of Input Lines | 2 Input | 2 Input | 2 Input |
| Number of Output Lines | 1 Output | 1 Output | 1 Output |
| Propagation Delay Time | 40 ns | 40 ns | 40 ns |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 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 | SOP-16 | SOP-16 | SOP-16 |
| Packaging | Tube | Tube | Tube |
| Function | Quad 2-to-1 Data | Multiplexer | Multiplexer |
| Height | 1.58 mm | 1.58 mm | 1.58 mm |
| Input Voltage | 2.0 V to 0.8 V | - | - |
| Length | 9.9 mm | 9.9 mm | 9.9 mm |
| Number of Circuits | Quad | Quad | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - 40 C to + 85 C |
| Output Current | +/- 35 mA | - | - |
| Output Voltage | 4.5 V to 5.5 V | - | - |
| Series | SN74HCT157 | SN74HCT157 | SN74HCT157 |
| Technology | CMOS | CMOS | CMOS |
| Width | 3.91 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Data Selectors/Multiplexers | Data Selectors/Multiplexers | CMOS |
| High Level Output Current | - 6 mA | - 6 mA | - 6 mA |
| Low Level Output Current | 6 mA | 6 mA | 6 mA |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz |
| Operating Supply Voltage | 5 V | 5 V | 5 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 40 | 40 | 40 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004998 oz | 0.004998 oz | 0.004998 oz |