| PartNumber | MM74HC138MTC | MM74HC138MTCX | MM74HC138M |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3-to-8 Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers 3-to-8 Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers 3-to-8 Line Decoder |
| 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 | Decoders | Decoders |
| Logic Family | 74HC | 74HC | 74HC |
| Number of Input Lines | 3 Input | 3 Input | 3 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 | TSSOP-16 | TSSOP-16 | SOIC-16 |
| Packaging | Tube | Reel | Tube |
| Function | Decoder | 3-to-8 Line Decoder | Decoder |
| Height | 0.9 mm | 0.9 mm | 1.5 mm |
| Input Voltage | - 1.5 V to + 1.5 V | - 1.5 V to + 1.5 V | - 1.5 V to + 1.5 V |
| Length | 5 mm | 5 mm | 10 mm |
| Number of Circuits | Dual | Dual | Dual |
| Output Current | +/- 25 mA | +/- 25 mA | +/- 25 mA |
| Output Voltage | - 0.5 V to + 0.5 V | - 0.5 V to Vcc + 0.5 V | - 0.5 V to + 0.5 V |
| Series | MM74HC138 | MM74HC138 | MM74HC138 |
| Technology | CMOS | CMOS | CMOS |
| Width | 4.4 mm | 4.4 mm | 4 mm |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Logic Type | Decoder | Decoder | Decoder |
| Supply Current Max | 0.008 mA | 0.008 mA | 0.008 mA |
| High Level Output Current | - 5.2 mA | - 5.2 mA | - 5.2 mA |
| Low Level Output Current | 5.2 mA | 5.2 mA | 5.2 mA |
| Operating Supply Voltage | 2 V to 6 V | 2 V to 6 V | 2 V to 6 V |
| Pd Power Dissipation | 600 mW | - | 600 mW |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 2350 | 2500 | 960 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.006102 oz | 0.006102 oz | 0.005044 oz |
| Part # Aliases | - | MM74HC138MTCX_NL | MM74HC138M_NL |