| PartNumber | SN74ALS138ANSR | SN74ALS138AN | SN74ALS138ANS |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8-Line Decdr/Demltplxer | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoders/Demultiplexers |
| Manufacturer | Texas Instruments | Texas Instruments | ON Semiconductor |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | Y |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | - |
| Logic Family | ALS | ALS | - |
| Number of Input Lines | 3 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Propagation Delay Time | 22 ns | 22 ns | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | SO-16 | PDIP-16 | - |
| Packaging | Reel | Tube | Reel |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | - |
| Height | 1.95 mm | 4.57 mm | - |
| Length | 10.3 mm | 19.3 mm | - |
| Number of Circuits | Single | Single | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Series | SN74ALS138A | SN74ALS138A | MC74LCX138 |
| Technology | Bipolar | Bipolar | - |
| Width | 5.3 mm | 6.35 mm | - |
| Brand | Texas Instruments | Texas Instruments | ON Semiconductor |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | - |
| High Level Output Current | - 0.4 mA | - 0.4 mA | - |
| Low Level Output Current | 8 mA | 8 mA | - |
| Maximum Clock Frequency | 75 MHz | 75 MHz | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 2000 | 25 | 2500 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.007079 oz | 0.033570 oz | - |
| Pd Power Dissipation | - | 200 mW | - |
| Qualification | - | - | AEC-Q100 |