| PartNumber | SN74LS155AN | SN74LS155ANE4 | SN74LS155ANSR |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Dual 2 to 4-Line Decdr/Demltplxer | 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 | LS | LS | LS |
| Number of Input Lines | 2 Input | 2 Input | 2 Input |
| Number of Output Lines | 4 Output | 4 Output | 4 Output |
| Propagation Delay Time | 27 ns | 27 ns | 27 ns |
| 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 | Through Hole | Through Hole | SMD/SMT |
| Package / Case | PDIP-16 | PDIP-16 | SO-16 |
| Packaging | Tube | Tube | Reel |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | Decoder and Demux |
| Height | 4.57 mm | 4.57 mm | 1.95 mm |
| Length | 19.3 mm | 19.3 mm | 10.3 mm |
| Number of Circuits | Dual | Dual | Dual |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | 0 C to + 70 C |
| Series | SN74LS155A | SN74LS155A | SN74LS155A |
| Technology | Bipolar | Bipolar | Bipolar |
| Width | 6.35 mm | 6.35 mm | 5.3 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | Decoders/Demultiplexers |
| Supply Current Max | 6.1 mA | 6.1 mA | 6.1 mA |
| High Level Output Current | - 0.4 mA | - 0.4 mA | - 0.4 mA |
| Low Level Output Current | 8 mA | 8 mA | 8 mA |
| Maximum Clock Frequency | 35 MHz | 35 MHz | 35 MHz |
| Operating Supply Voltage | 5 V | 5 V | 5 V |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 25 | 25 | 2000 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.033570 oz | 0.033570 oz | 0.007079 oz |