# PIC18LF14K50T-I

**Microchip Tech** · Microcontroller Units (MCUs/MPUs/SOCs) · SSOP-20-208mil

PIC18LF14K50T-I from Microchip Tech, in a SSOP-20-208mil. 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 datasheet states an operating voltage range of 1.8V to 5.5V. |
| 2 | RA5/OSC1/CLKI | bidirectional | Port pin RA5 multiplexed with the oscillator input OSC1 and external clock input CLKI. |
| 3 | RA4/AN3/OSC2/CLKO | bidirectional | Port pin RA4 multiplexed with analog input AN3, oscillator output OSC2 and clock output CLKO. |
| 4 | RA3/MCLR/VPP | input | Port input RA3 multiplexed with the master clear reset input MCLR and the programming voltage input VPP. |
| 5 | RC5/CCP1/P1A/T0CKI | bidirectional | Port pin RC5 multiplexed with the CCP1 capture/compare/PWM, the ECCP output P1A and the Timer0 clock input T0CKI. |
| 6 | RC4/P1B/C12OUT/SRQ | bidirectional | Port pin RC4 multiplexed with the ECCP output P1B, the comparator output C12OUT and the SR latch output SRQ. |
| 7 | RC3/AN7/P1C/C12IN3-/PGM | bidirectional | Port pin RC3 multiplexed with analog input AN7, ECCP output P1C, comparator input C12IN3- and the low-voltage programming pin PGM. |
| 8 | RC6/AN8/SS/T13CKI/T1OSCI | bidirectional | Port pin RC6 multiplexed with analog input AN8, the MSSP slave select SS, the Timer1/3 clock input T13CKI and the Timer1 oscillator input T1OSCI. |
| 9 | RC7/AN9/SDO/T1OSCO | bidirectional | Port pin RC7 multiplexed with analog input AN9, the SPI data output SDO and the Timer1 oscillator output T1OSCO. |
| 10 | RB7/TX/CK | bidirectional | Port pin RB7 multiplexed with the EUSART transmit output TX and the synchronous clock CK. |
| 11 | RB6/SCK/SCL | bidirectional | Port pin RB6 multiplexed with the SPI clock SCK and the I2C clock SCL. |
| 12 | RB5/AN11/RX/DT | bidirectional | Port pin RB5 multiplexed with analog input AN11, the EUSART receive input RX and the synchronous data DT. |
| 13 | RB4/AN10/SDI/SDA | bidirectional | Port pin RB4 multiplexed with analog input AN10, the SPI data input SDI and the I2C data SDA. |
| 14 | RC2/AN6/P1D/C12IN2-/CVREF/INT2 | bidirectional | Port pin RC2 multiplexed with analog input AN6, ECCP output P1D, comparator input C12IN2-, the comparator reference output CVREF and external interrupt INT2. |
| 15 | RC1/AN5/C12IN1-/INT1/VREF- | bidirectional | Port pin RC1 multiplexed with analog input AN5, comparator input C12IN1-, external interrupt INT1 and the negative A/D reference VREF-. |
| 16 | RC0/AN4/C12IN+/INT0/VREF+ | bidirectional | Port pin RC0 multiplexed with analog input AN4, comparator input C12IN+, external interrupt INT0 and the positive A/D reference VREF+. |
| 17 | VUSB | power_out | USB voltage pin for the on-chip USB transceiver. |
| 18 | D-/PGC | bidirectional | USB differential D- data line, shared with the in-circuit programming clock PGC. |
| 19 | D+/PGD | bidirectional | USB differential D+ data line, shared with the in-circuit programming data PGD. |
| 20 | VSS | power_in | Ground reference pin for the logic and I/O. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SSOP-20-208mil |
| Category | Single Chip Microcomputer/Microcontroller |
| Pins | 20 |

## CAD (KiCad official)

- Symbol: `PIC18LF14K50T-I`
- Footprint: `Package_SO:SSOP-20_5.3x7.2mm_P0.65mm`
- 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
- 3D model files: `pic18lf14k50t-i-etched.step` / `pic18lf14k50t-i-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pic18lf14k50t-i.step` / `pic18lf14k50t-i.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/pic18lf14k50t-i-datasheet.pdf) (4 pp, sha256 `3fbec48168e3cb26`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/pic18lf14k50t-i-datasheet.pdf)