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| PartNumber | SN74LS138D | SN74LS138DG4 | SN74LS138DB |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8 | Encoders, Decoders, Multiplexers & Demultiplexers 3-line to 8-line Decoder/Demltplxr | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| RoHS | Y | Y | - |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | - |
| Logic Family | LS | LS | - |
| Number of Input Lines | 3 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Propagation Delay Time | 41 ns | 41 ns | - |
| Supply Voltage Min | 4.75 V | 4.75 V | - |
| Supply Voltage Max | 5.25 V | 5.25 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOP-16 | SOP-16 | - |
| Packaging | Tube | Tube | - |
| Function | 3 to 8 | Decoder and Demux | - |
| Height | 1.58 mm | 1.58 mm | - |
| Input Voltage | 2.0 V to 0.8 V | - | - |
| Length | 9.9 mm | 9.9 mm | - |
| Number of Circuits | Quad | Quad | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Output Current | 8 mA | - | - |
| Output Voltage | + 0.4 V to + 0.5 V | - | - |
| Series | SN74LS138 | SN74LS138 | - |
| Technology | Bipolar | Bipolar | - |
| Width | 3.91 mm | 3.91 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | - |
| Supply Current Max | 6.3 mA | 6.3 mA | - |
| High Level Output Current | - 0.4 mA | - 0.4 mA | - |
| Low Level Output Current | 8 mA | 8 mA | - |
| Maximum Clock Frequency | 35 MHz | 35 MHz | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 40 | 40 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.004998 oz | 0.004998 oz | - |