# CD4081BM

**Texas Instruments** · Logic Gates · SOIC-14

CD4081BM from Texas Instruments, in a SOIC-14. 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 | input | Gate 1 input A; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 2 | B | input | Gate 1 input B; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 3 | J | output | Gate 1 AND output (A·B) with standardized symmetrical output characteristics. |
| 4 | K | output | Gate 2 AND output (C·D) with standardized symmetrical output characteristics. |
| 5 | C | input | Gate 2 input C; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 6 | D | input | Gate 2 input D; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 7 | VSS | power_in | Ground / negative supply terminal; all voltages are referenced to VSS. |
| 8 | E | input | Gate 3 input E; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 9 | F | input | Gate 3 input F; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 10 | L | output | Gate 3 AND output (E·F) with standardized symmetrical output characteristics. |
| 11 | M | output | Gate 4 AND output (G·H) with standardized symmetrical output characteristics. |
| 12 | G | input | Gate 4 input G; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 13 | H | input | Gate 4 input H; input range -0.5 V to VDD+0.5 V, max DC input current ±10 mA. |
| 14 | VDD | power_in | Positive supply; recommended 3 V to 18 V, absolute maximum -0.5 V to +20 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Logic |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `CD4081BM`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `cd4081bm-etched.step` / `cd4081bm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cd4081bm.step` / `cd4081bm.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/cd4081b) (34 pp, sha256 `239c48fa7c2851ee`, retrieved 2026-10-08, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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).

[Datasheet PDF](docs/cd4081bm-datasheet.pdf)