component
74HC157D
Public Made by Adomby adom
Nexperia Signal Switches, Multiplexers, Decoders, SOIC-16. Datasheet-verified pinout, 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
markdown74HC157D
Nexperia · Signal Switches, Multiplexers, Decoders · SOIC-16
74HC157D from Nexperia, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | S | input | Common data select input; HIGH selects source 1, LOW selects source 0 |
| 2 | 1I0 | input | Data input from source 0 |
| 3 | 1I1 | input | Data input from source 1 |
| 4 | 1Y | output | Multiplexer output; forced LOW when E is HIGH |
| 5 | 2I0 | input | Data input from source 0 |
| 6 | 2I1 | input | Data input from source 1 |
| 7 | 2Y | output | Multiplexer output; forced LOW when E is HIGH |
| 8 | GND | power_in | Ground (0 V) |
| 9 | 3Y | output | Multiplexer output; forced LOW when E is HIGH |
| 10 | 3I1 | input | Data input from source 1 |
| 11 | 3I0 | input | Data input from source 0 |
| 12 | 4Y | output | Multiplexer output; forced LOW when E is HIGH |
| 13 | 4I1 | input | Data input from source 1 |
| 14 | 4I0 | input | Data input from source 0 |
| 15 | E | input | Enable input (active LOW); HIGH forces all outputs LOW |
| 16 | VCC | power_in | Supply voltage; 2.0 V minimum to 6.0 V maximum |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| Package | SOIC-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
74HC157D - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
74hc157d-etched.step/74hc157d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74hc157d.step/74hc157d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (15 pp, sha256
74a09a3b77c06c22, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).