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| PartNumber | 74AC138SC | 74AC138MTC | 74AC138MTCX |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 1-of-8 Decoder/Demul | Encoders, Decoders, Multiplexers & Demultiplexers 1-of-8 Decoder/Demul | Encoders, Decoders, Multiplexers & Demultiplexers 1-of-8 Decoder/Demul |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | Y |
| Product | Decoders, Encoders, Multiplexers & Demultiplexers | Decoders, Encoders, Multiplexers & Demultiplexers | Decoders / Demultiplexers |
| Logic Family | 74AC | 74AC | 74AC |
| Number of Input Lines | 1 Input | 1 Input | 1 Input |
| Number of Output Lines | 8 Output | 8 Output | 8 Output |
| Supply Voltage Min | 2 V | 2 V | 2 V |
| Supply Voltage Max | 6 V | 6 V | 6 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 | SOIC-16 | TSSOP-16 | TSSOP-16 |
| Packaging | Tube | Tube | Reel |
| Function | Decoder/Demultiplexers | Decoders/Demultiplexers | 1-of-8 Decoder/Demul |
| Height | 1.5 mm | 0.9 mm | 0.9 mm |
| Input Voltage | - 0.5 V to + 7.0 V | - 0.5 V to + 7.0 V | - 0.5 V to + 0.5 V |
| Length | 10 mm | 5 mm | 5 mm |
| Number of Circuits | Octal | Hex | Hex |
| Output Current | 5.5 mA | 5.5 mA | +/- 50 mA |
| Output Voltage | - 0.5 V to + 0.5 V | - 0.5 V to + 0.5 V | - 0.5 V to + 7 V |
| Series | 74AC138 | 74AC138 | 74AC138 |
| Technology | CMOS | CMOS | CMOS |
| Width | 4 mm | 4.4 mm | 4.4 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | Decoders/Demultiplexers |
| Supply Current Max | 0.004 mA | 0.004 mA | 0.004 mA |
| High Level Output Current | - 24 mA | - 24 mA | - 24 mA |
| Low Level Output Current | 24 mA | 24 mA | 24 mA |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 6 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 48 | 96 | 2500 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Part # Aliases | 74AC138SC_NL | 74AC138MTC_NL | - |
| Unit Weight | 0.005044 oz | 0.006102 oz | 0.006102 oz |