component
CD74HC139M96
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Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+52@@ -0,0 +1,52 @@+# CD74HC139M96++**Texas Instruments** · Signal Switches, Multiplexers, Decoders · SOIC-16++CD74HC139M96 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 | 1E | input | Enable input for decoder 1, active low. |+| 2 | 1A0 | input | Select input A0 for decoder 1. |+| 3 | 1A1 | input | Select input A1 for decoder 1. |+| 4 | 1Y0 | output | Active low output Y0 for decoder 1. |+| 5 | 1Y1 | output | Active low output Y1 for decoder 1. |+| 6 | 1Y2 | output | Active low output Y2 for decoder 1. |+| 7 | 1Y3 | output | Active low output Y3 for decoder 1. |+| 8 | GND | power_in | Ground connection. |+| 9 | 2Y3 | output | Active low output Y3 for decoder 2. |+| 10 | 2Y2 | output | Active low output Y2 for decoder 2. |+| 11 | 2Y1 | output | Active low output Y1 for decoder 2. |+| 12 | 2Y0 | output | Active low output Y0 for decoder 2. |+| 13 | 2A1 | input | Select input A1 for decoder 2. |+| 14 | 2A0 | input | Select input A0 for decoder 2. |+| 15 | 2E | input | Enable input for decoder 2, active low. |+| 16 | VCC | power_in | Supply voltage: 2V to 6V for HC types, 4.5V to 5.5V for HCT types. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-16 |+| Category | Logic |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `CD74HC139M96`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)+- 3D model files: `cd74hc139m96-etched.step` / `cd74hc139m96-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd74hc139m96.step` / `cd74hc139m96.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/cd74hc139) (14 pp, sha256 `73fb34554a953f9b`, retrieved 2026-09-26, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).++[Datasheet PDF](docs/cd74hc139m96-datasheet.pdf)
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