| PartNumber | SN74AHCT139N | SN74AHCT139NSR | SN74AHCT139NSRE4 |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Dual | Encoders, Decoders, Multiplexers & Demultiplexers Dual 2 to 4-Line Decdr/Demltplxer | Encoders, Decoders, Multiplexers & Demultiplexers Dual 2 to 4-Line Decdr/Demltplxer |
| 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 | AHCT | 74AHCT | 74AHCT |
| Number of Input Lines | 2 Input | 2 Input | 2 Input |
| Number of Output Lines | 4 Output | 4 Output | 4 Output |
| Propagation Delay Time | 8.5 ns | - | - |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Package / Case | PDIP-16 | SO-16 | SO-16 |
| Packaging | Tube | Reel | Reel |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | Decoder/Demultiplexer |
| Height | 4.57 mm | 1.95 mm | 1.95 mm |
| Length | 19.3 mm | 10.3 mm | 10.3 mm |
| Number of Circuits | Dual | Dual | Dual |
| Operating Temperature Range | - 40 C to + 85 C | - | - |
| Series | SN74AHCT139 | - | - |
| Technology | CMOS | CMOS | CMOS |
| Width | 6.35 mm | 5.3 mm | 5.3 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | Decoders/Demultiplexers |
| Supply Current Max | 0.02 mA | 0.02 mA | 0.02 mA |
| High Level Output Current | - 8 mA | - 8 mA | - 8 mA |
| Low Level Output Current | 8 mA | 8 mA | 8 mA |
| Maximum Clock Frequency | 70 MHz | - | - |
| Operating Supply Voltage | 5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 25 | 1 | 1 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.033570 oz | 0.007079 oz | 0.007079 oz |