# SN74HC238N

**XBLW** · Signal Switches, Multiplexers, Decoders · DIP-16

SN74HC238N from XBLW, in a DIP-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 | A0 | input | Address input (least significant bit of the 3-bit binary weighted address). |
| 2 | A1 | input | Address input of the 3-bit binary weighted address. |
| 3 | A2 | input | Address input of the 3-bit binary weighted address. |
| 4 | E1 | input | Enable input, active LOW; outputs are LOW unless E1 and E2 are LOW and E3 is HIGH. |
| 5 | E2 | input | Enable input, active LOW; outputs are LOW unless E1 and E2 are LOW and E3 is HIGH. |
| 6 | E3 | input | Enable input, active HIGH; outputs are LOW unless E1 and E2 are LOW and E3 is HIGH. |
| 7 | Y7 | output | Output 7, active HIGH. |
| 8 | GND | power_in | Ground (0 V). |
| 9 | Y6 | output | Output 6, active HIGH. |
| 10 | Y5 | output | Output 5, active HIGH. |
| 11 | Y4 | output | Output 4, active HIGH. |
| 12 | Y3 | output | Output 3, active HIGH. |
| 13 | Y2 | output | Output 2, active HIGH. |
| 14 | Y1 | output | Output 1, active HIGH. |
| 15 | Y0 | output | Output 0, active HIGH. |
| 16 | VCC | power_in | Supply voltage; recommended 2.0 V to 6.0 V, absolute maximum 7.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XBLW |
| Package | DIP-16 |
| Category | Logic |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `SN74HC238N`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `sn74hc238n-etched.step` / `sn74hc238n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74hc238n.step` / `sn74hc238n.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [XBLW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590906035672592384) (15 pp, sha256 `e8c466451c3704fe`, retrieved 2026-10-15, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/sn74hc238n-datasheet.pdf)