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| PartNumber | SN74LS257BN | SN74LS257BNE4 | SN74LS257BNG4 |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Quad Data | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-to-1 Data Slct/Mltpx W/3St Otp | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Logic - Signal Switches, Multiplexers, Decoders | - |
| RoHS | Y | - | - |
| Product | Selectors / Multiplexers | - | - |
| Logic Family | LS | - | - |
| Number of Bits | 4 bit | - | - |
| Number of Input Lines | 2 Input | - | - |
| Number of Output Lines | 1 Output | - | - |
| Propagation Delay Time | 21 ns | - | - |
| Supply Voltage Min | 4.75 V | - | - |
| Supply Voltage Max | 5.25 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | PDIP-16 | - | - |
| Packaging | Tube | Tube Alternate Packaging | - |
| Function | Multiplexer | - | - |
| Height | 4.57 mm | - | - |
| Length | 19.3 mm | - | - |
| Number of Circuits | Quad | - | - |
| Operating Temperature Range | 0 C to + 70 C | - | - |
| Series | SN74LS257B | 74LS | - |
| Technology | Bipolar | - | - |
| Width | 6.35 mm | - | - |
| Brand | Texas Instruments | - | - |
| Logic Type | Data Selectors/Multiplexers | - | - |
| High Level Output Current | - 2.6 mA | - | - |
| Low Level Output Current | 24 mA | - | - |
| Maximum Clock Frequency | 35 MHz | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Pd Power Dissipation | 200 mW | - | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | - | - |
| Factory Pack Quantity | 25 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.033570 oz | - | - |
| Type | - | Multiplexer | - |
| Package Case | - | 16-DIP (0.300", 7.62mm) | - |
| Operating Temperature | - | 0°C ~ 70°C | - |
| Mounting Type | - | Through Hole | - |
| Voltage Supply | - | 4.75 V ~ 5.25 V | - |
| Supplier Device Package | - | 16-PDIP | - |
| Voltage Supply Source | - | Single Supply | - |
| Circuit | - | 4 x 2:1 | - |
| Current Output High Low | - | 2.6mA, 24mA | - |
| Independent Circuits | - | 1 | - |