PIC16F1824-I from Microchip, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VDD	power_in	Positive supply voltage. 1.8V to 5.5V for PIC16F1824; 1.8V to 3.6V for PIC16LF1824. Decouple with 0.1 µF to VSS.
2	RA5/T1CKI/T1OSI/CCP2/P2A/OSC1/CLKIN	bidirectional	PORTA bit 5. Digital I/O with weak pull-up and interrupt-on-change. Muxed functions: Timer1 clock input (T1CKI), Timer1 oscillator input (T1OSI), CCP2/P2A PWM, primary oscillator input (OSC1/CLKIN).
3	RA4/AN3/CPS3/T1G/T1OSO/P2B/SDO/OSC2/CLKOUT/CLKR	bidirectional	PORTA bit 4. Digital I/O with weak pull-up and IOC. Muxed: ADC channel AN3, CapSense CPS3, Timer1 gate/oscillator output, ECCP P2B PWM, MSSP SDO, oscillator output OSC2/CLKOUT, reference clock output.
4	RA3/T1G/SS/MCLR/VPP	input	PORTA bit 3, input only (no digital output driver). Doubles as Master Clear (active-low reset) and High-Voltage Programming (VPP) input, MSSP slave-select (SS), Timer1 gate. Weak pull-up and IOC available. VPP up to ~9V during ICSP programming.
5	RC5/CCP1/P1A/TX/CK/RX/DT/MDCIN2	bidirectional	PORTC bit 5. Digital I/O with weak pull-up. Muxed: CCP1/P1A PWM output, EUSART TX/CK (async TX or sync clock) or RX/DT (async RX or sync data), Data Signal Modulator carrier input MDCIN2.
6	RC4/C2OUT/SRNQ/P1B/TX/CK/MDOUT	bidirectional	PORTC bit 4. Digital I/O with weak pull-up. Muxed: Comparator C2 output, SR latch inverted output (SRNQ), ECCP P1B, EUSART TX/CK, Data Signal Modulator output MDOUT.
7	RC3/AN7/CPS7/C12IN3-/CCP2/P1C/P2A/SS/MDMIN	bidirectional	PORTC bit 3. Digital I/O with weak pull-up. Muxed: ADC AN7, CapSense CPS7, comparator C1/C2 inverting input C12IN3-, CCP2/P1C/P2A PWM, MSSP SS, Data Signal Modulator modulation input MDMIN.
8	RC2/AN6/CPS6/C12IN2-/P1D/P2B/SDO/MDCIN1	bidirectional	PORTC bit 2. Digital I/O with weak pull-up. Muxed: ADC AN6, CapSense CPS6, comparator inverting input C12IN2-, ECCP P1D/P2B, MSSP SDO, Data Signal Modulator carrier input MDCIN1.
9	RC1/AN5/CPS5/C12IN1-/CCP4/P1C/SDA/SDI	bidirectional	PORTC bit 1. Digital I/O with weak pull-up. Muxed: ADC AN5, CapSense CPS5, comparator inverting input C12IN1-, CCP4 output/P1C PWM, MSSP I2C data (SDA) or SPI serial data in (SDI).
10	RC0/AN4/CPS4/C2IN+/P1D/SCL/SCK	bidirectional	PORTC bit 0. Digital I/O with weak pull-up. Muxed: ADC AN4, CapSense CPS4, comparator C2 non-inverting input, ECCP P1D, MSSP I2C clock (SCL) or SPI clock (SCK).
11	RA2/AN2/CPS2/C1OUT/SRQ/T0CKI/CCP3/FLT0/INT/IOC	bidirectional	PORTA bit 2. Digital I/O with weak pull-up. Muxed: ADC AN2, CapSense CPS2, comparator C1 output, SR latch output (SRQ), Timer0 clock input (T0CKI), CCP3, ECCP fault input FLT0, external interrupt INT, IOC.
12	RA1/AN1/VREF+/CPS1/C12IN0-/SRI/RX/DT/ICSPCLK/ICDCLK	bidirectional	PORTA bit 1. Digital I/O with weak pull-up and IOC. Muxed: ADC AN1, positive ADC reference VREF+, CapSense CPS1, comparator inverting input C12IN0-, SR latch input SRI, EUSART RX/DT, ICSP programming clock (ICSPCLK) and in-circuit debug clock (ICDCLK).
13	RA0/AN0/VREF-/DACOUT/CPS0/C1IN+/TX/CK/IOC/ICSPDAT	bidirectional	PORTA bit 0. Digital I/O with weak pull-up and IOC. Muxed: ADC AN0, negative ADC reference VREF-, 5-bit DAC output DACOUT, CapSense CPS0, comparator C1 non-inverting input, EUSART TX/CK, ICSP data (ICSPDAT).
14	VSS	power_in	Ground reference for logic and I/O. Must be tied to system ground.

Key specifications

Parameter	Value
Manufacturer	Microchip
Package	SOIC-14
Category	MCU
Pins	14

Ordering variants

Same part, different packaging or reel option.

PIC16F1824-II/P
PIC16F1824-II/SL
PIC16F1824-II/ST
PIC16F1824-II/ML

CAD (KiCad official)

Symbol: PIC16F1824-I
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`pic16f1824-i.step`	195 KB	You want the bare part, or you mark your own boards.
`pic16f1824-i-etched.step`	2.4 MB	You want the part with `PIC16F1824-I` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 622 faces against 237 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Microchip datasheet (436 pp, sha256 79590175dda79888, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF