# PIC12F1822-E

**Microchip Tech** · Microcontrollers (MCU/MPU/SOC) · SOIC-8

PIC12F1822-E from Microchip Tech, in a SOIC-8. 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 | VDD | power_in | Positive supply pin; the PIC12F1822 operating range is 1.8V to 5.5V per the datasheet features list. |
| 2 | RA5 | bidirectional | General-purpose I/O with individually programmable interrupt-on-change and weak pull-up, also assignable to OSC1/CLKIN, T1CKI/T1OSI, CCP1/P1A (one of two locations, set in software), RX/DT, and SRNQ. |
| 3 | RA4 | bidirectional | General-purpose I/O with interrupt-on-change and weak pull-up, also assignable to AN3, CPS3, T1G/T1OSO, P1B, TX/CK, SDO, C1IN1-, MDCIN2, and OSC2/CLKOUT/CLKR (one of two locations, set in software where noted). |
| 4 | RA3 | input | Input pin with interrupt-on-change, also assignable to T1G and SS, and serving as the MCLR/VPP/ICDMCLR function. |
| 5 | RA2 | bidirectional | General-purpose I/O with interrupt-on-change (INT) and weak pull-up, also assignable to AN2, CPS2, C1OUT, SRQ, T0CKI, CCP1/P1A, FLT0, SDA/SDI, and MDCIN1. |
| 6 | RA1 | bidirectional | General-purpose I/O with interrupt-on-change and weak pull-up, also assignable to AN1, VREF, CPS1, C1IN0-, SRI, RX/DT, SCL/SCK, MDMIN, and ICSPCLK/ICDCLK. |
| 7 | RA0 | bidirectional | General-purpose I/O with interrupt-on-change and weak pull-up, also assignable to AN0, DACOUT, CPS0, C1IN+, P1B, TX/CK, SDO, SS, MDOUT, and ICSPDAT/ICDDAT. |
| 8 | VSS | power_in | Ground reference pin for the device. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOIC-8 |
| Category | Embedded Processors & Controllers |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating voltage range (PIC1XF182X, non-LF) |  | 1.8 |  | 5.5 | V | PIC12F1822 non-LF variant, per Features list | 1 |
| Clock input frequency |  |  |  | 32 | MHz | Clock input, printed as DC to 32 MHz | 1 |
| Precision internal oscillator frequency tolerance |  | -1 |  | 1 | % | Factory calibrated, typical | 1 |

## CAD (KiCad official)

- Symbol: `PIC12F1822-E`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `pic12f1822-e-etched.step` / `pic12f1822-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pic12f1822-e.step` / `pic12f1822-e.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881724080472064) (10 pp, sha256 `9aeee263ecfd8d2c`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/pic12f1822-e-datasheet.pdf)