| PartNumber | SN74S138ANSRG4 | SN74S138ANSRE4 | SN74S138ANSR |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3 line to 8 line Decodr Demultiplexer | Encoders, Decoders, Multiplexers & Demultiplexers 3-line to 8-line Decoder/Demltplxr | Encoders, Decoders, Multiplexers & Demultiplexers 3-line to 8-line Decoder/Demltplxr |
| 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 | Decoders / Demultiplexers | Decoders / Demultiplexers | Decoders / Demultiplexers |
| Logic Family | 74S | 74S | 74S |
| 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 | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 70 C | + 70 C | + 70 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SO-16 | SO-16 | SOP-16 |
| Packaging | Reel | Reel | Reel |
| Function | Decoder/Demultiplexer | Decoder and Demux | Decoder and Demux |
| Height | 1.95 mm | 1.95 mm | 1.95 mm |
| Length | 10.3 mm | 10.3 mm | 10.3 mm |
| Number of Circuits | 1 Circuit | Triple | Triple |
| Technology | Bipolar | Bipolar | Bipolar |
| Width | 5.3 mm | 5.3 mm | 5.3 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Decoders, Encoders, Multiplexers & Demultiplers | Decoders/Demultiplexers | Decoders/Demultiplexers |
| Supply Current Max | 49 mA | 49 mA | 49 mA |
| High Level Output Current | - 1 mA | - 1 mA | - 1 mA |
| Low Level Output Current | 20 mA | 20 mA | 20 mA |
| Operating Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.008536 oz | 0.008536 oz | 0.008536 oz |
| Number of Input Lines | - | 3 Input | 3 Input |
| Number of Output Lines | - | 8 Output | 8 Output |