component
SN74HC158DT
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN74HC158DT
Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-16
SN74HC158DT from Texas Instruments, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | A/B | input | Data select input; low selects A inputs, high selects B inputs for all channels |
| 2 | 1A | input | Data input A for channel 1; selected when A/B is low |
| 3 | 1B | input | Data input B for channel 1; selected when A/B is high |
| 4 | 1Y | output | Inverted output for channel 1; outputs inverted data from selected input when G is low, high when G is high |
| 5 | 2A | input | Data input A for channel 2; selected when A/B is low |
| 6 | 2B | input | Data input B for channel 2; selected when A/B is high |
| 7 | 2Y | output | Inverted output for channel 2; outputs inverted data from selected input when G is low, high when G is high |
| 8 | GND | power_in | Ground; connection point for logic reference (0 V) |
| 9 | 3Y | output | Inverted output for channel 3; outputs inverted data from selected input when G is low, high when G is high |
| 10 | 3B | input | Data input B for channel 3; selected when A/B is high |
| 11 | 3A | input | Data input A for channel 3; selected when A/B is low |
| 12 | 4Y | output | Inverted output for channel 4; outputs inverted data from selected input when G is low, high when G is high |
| 13 | 4B | input | Data input B for channel 4; selected when A/B is high |
| 14 | 4A | input | Data input A for channel 4; selected when A/B is low |
| 15 | G | input | Strobe (output enable) input, active low; outputs are high when G is high, selected data routed to outputs when G is low |
| 16 | VCC | power_in | Supply voltage, positive power connection; operating voltage range 2 V to 6 V |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74HC158DT - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
sn74hc158dt-etched.step/sn74hc158dt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc158dt.step/sn74hc158dt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (19 pp, sha256
2dab2a1df902eb79, retrieved 2026-10-05, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).