PIC16LF18326-I from Microchip Tech, in a TSSOP-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 3.6V for PIC16LF18326 (LF = low-voltage variant).
2	RA5/OSC1/CLKIN	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Also serves as primary oscillator input (OSC1/CLKIN), secondary oscillator input (SOSCI/SOSCIN), analog input ANA5, Timer1 clock input (T1CKI), and CLCIN3.
3	RA4/OSC2/CLKOUT	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Also primary oscillator output (OSC2), FOSC/4 clock output (CLKOUT), secondary oscillator output (SOSCO), analog input ANA4, and Timer1 gate (T1G).
4	RA3/MCLR/VPP	input	Master Clear reset input (active low) or programming voltage (VPP) input during ICSP. When MCLR is disabled by configuration, functions as input-only RA3 with weak pull-up and interrupt-on-change.
5	RC5	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC5, Timer3 clock (T3CKI), default CCP1, default SDI2/SDA2 (MSSP2), default EUSART RX, and DSM MDCIN2 via PPS.
6	RC4	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC4, Timer3 gate (T3G), default SCK2/SCL2 (MSSP2), and CLCIN1 via PPS.
7	RC3	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC3, comparator inputs C1IN3-/C2IN3-, DSM modulator input (MDMIN), Timer5 gate (T5G), default CCP2, MSSP1 slave-select (SS1), and CLCIN0 via PPS.
8	RC2	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC2, comparator inputs C1IN2-/C2IN2-, and DSM carrier input MDCIN1 via PPS.
9	RC1	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC1, comparator inputs C1IN1-/C2IN1-, default CCP4, default SDI1/SDA1 (MSSP1), and CLCIN2 via PPS.
10	RC0	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANC0, comparator input C2IN0+, Timer5 clock (T5CKI), and default SCK1/SCL1 (MSSP1) via PPS.
11	RA2	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Analog input ANA2, ADC negative reference (VREF-), DAC1 negative reference (DAC1REF-), Timer0 clock (T0CKI), default CCP3, CWG1/CWG2 input, and external interrupt (INT) via PPS.
12	RA1/ICSPCLK	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Also ICSP programming clock (ICSPCLK) / in-circuit debug clock (ICDCLK), analog input ANA1, ADC positive reference (VREF+), comparator inputs C1IN0-/C2IN0-, and DAC1 positive reference (DAC1REF+).
13	RA0/ICSPDAT	bidirectional	General-purpose I/O with weak pull-up and interrupt-on-change. Also ICSP programming data (ICSPDAT) / in-circuit debug data (ICDDAT), analog input ANA0, comparator input C1IN0+, DAC1 output (DAC1OUT), and MSSP2 slave-select SS2 via PPS.
14	VSS	power_in	Ground reference for logic and I/O.

Key specifications

Parameter	Value
Manufacturer	Microchip Tech
Package	TSSOP-14
Category	Embedded Processors & Controllers
Pins	14

Ordering variants

Same part, different packaging or reel option.

PIC16LF18326-II/P
PIC16LF18326-II/SL
PIC16LF18326-II/ST
PIC16LF18326-II/JQ

CAD (KiCad official)

Symbol: PIC16LF18326-I
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Microchip Tech datasheet (500 pp, sha256 caaf66beaba7d548, retrieved 2026-08-17, tier: lcsc)
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