| PartNumber | SN74AHCT138QDRQ1 | SN74AHCT138QDRG4Q1 | SN74AHCT138QPWRQ1 |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3 Line to 8 Line Decoders DeMltplxrs | Encoders, Decoders, Multiplexers & Demultiplexers 3-8 LINE DECODER DEMUX | Encoders, Decoders, Multiplexers & Demultiplexers Automotive Catalog 3-Line to 8-Line Decoders/Demultiplexers 16-TSSOP -40 to 125 |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | - |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | Decoders / Demultiplexers |
| Logic Family | AHCT | AHCT | AHCT |
| Number of Bits | 8 bit | - | 8 bit |
| Number of Input Lines | 3 Input | 3 Input | 3 Input |
| Number of Output Lines | 8 Output | 8 Output | 8 Output |
| Propagation Delay Time | 12 ns | 12 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 | + 125 C | + 125 C | + 125 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOP-16 | SOP-16 | TSSOP-16 |
| Qualification | AEC-Q100 | AEC-Q100 | - |
| Packaging | Reel | Reel | - |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | Decoder/Demultiplexer |
| Height | 1.58 mm | 1.58 mm | 1.15 mm |
| Length | 9.9 mm | 9.9 mm | 5 mm |
| Number of Circuits | Dual | 1 Circuit | Dual |
| Operating Temperature Range | - 40 C to + 125 C | - 40 C to + 125 C | - 40 C to + 125 C |
| Series | SN74AHCT138Q-Q1 | SN74AHCT138Q-Q1 | SN74AHCT138Q-Q1 |
| Technology | CMOS | CMOS | CMOS |
| Width | 3.91 mm | 3.91 mm | 4.4 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Decoders/Demultiplexers | CMOS | Decoders/Demultiplexers |
| Supply Current Max | 0.004 mA | 0.004 mA | 0.004 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 | 70 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 | 2500 | 2500 | - |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004984 oz | 0.004998 oz | 0.002183 oz |