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pic18f26k83-i

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by Ray

Microchip Microcontrollers (MCU/MPU/SOC), SSOP-28-208mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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PIC18F26K83-I

Microchip · Microcontrollers (MCU/MPU/SOC) · SSOP-28-208mil

PIC18F26K83-I from Microchip, in a SSOP-28-208mil. 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 MCLR/VPP/RE3 input Active-low master clear (device reset) input with internal weak pull-up; also high-voltage programming supply (VPP) during ICSP. May be repurposed as digital input-only RE3 when MCLR is disabled in configuration.
2 RA0 bidirectional PORTA bit 0 general-purpose I/O with IOC. Analog channel ANA0 and comparator C1IN0-/C2IN0- inverting inputs. 5 V-tolerant per device family (F: 5.5 V max VDD).
3 RA1 bidirectional PORTA bit 1 GPIO with IOC. Analog channel ANA1 and comparator C1IN1-/C2IN1- inverting inputs.
4 RA2 bidirectional PORTA bit 2 GPIO with IOC. Analog channel ANA2, external voltage-reference negative input (VREF-), DAC1OUT1 output, and comparator C1IN0+/C2IN0+ non-inverting inputs.
5 RA3 bidirectional PORTA bit 3 GPIO with IOC. Analog channel ANA3, external voltage-reference positive input (VREF+), comparator C1IN1+ non-inverting input, and DSM MD1CARL PPS input.
6 RA4 bidirectional PORTA bit 4 GPIO with IOC. Analog channel ANA4, Timer0 clock input T0CKI (PPS) and DSM MD1CARH PPS input.
7 RA5 bidirectional PORTA bit 5 GPIO with IOC. Analog channel ANA5, SPI slave-select SS1 (PPS) and DSM MD1SRC PPS input.
8 VSS power_in Ground reference for logic and I/O. Connect to system 0 V. This is one of two VSS pins on the 28-pin SPDIP/SOIC/SSOP package (pins 8 and 19).
9 RA7/OSC1/CLKIN bidirectional PORTA bit 7 GPIO with IOC. Also primary oscillator input (OSC1) or external clock input (CLKIN), and analog channel ANA7.
10 RA6/OSC2/CLKOUT bidirectional PORTA bit 6 GPIO with IOC. Also primary oscillator output (OSC2) or FOSC/4 clock output (CLKOUT), and analog channel ANA6.
11 RC0/SOSCO bidirectional PORTC bit 0 GPIO with IOC. Secondary oscillator output SOSCO, analog channel ANC0, Timer1/3 clock/gate inputs T1CKI/T3CKI/T3G (PPS) and SMT1WIN PPS input.
12 RC1/SOSCI bidirectional PORTC bit 1 GPIO with IOC. Secondary oscillator input SOSCI, analog channel ANC1, SMT1SIG and CCP2 PPS inputs.
13 RC2 bidirectional PORTC bit 2 GPIO with IOC. Analog channel ANC2, Timer5 clock T5CKI (PPS) and CCP1 (PPS) inputs.
14 RC3 bidirectional PORTC bit 3 GPIO with IOC. Analog channel ANC3, default I2C1 SCL and SPI1 SCK (both PPS, bidirectional), Timer2 input T2IN (PPS).
15 RC4 bidirectional PORTC bit 4 GPIO with IOC. Analog channel ANC4, default I2C1 SDA (PPS, bidirectional, I2C/SMBus tolerant) and SPI1 SDI (PPS) inputs.
16 RC5 bidirectional PORTC bit 5 GPIO with IOC. Analog channel ANC5 and Timer4 input T4IN (PPS).
17 RC6 bidirectional PORTC bit 6 GPIO with IOC. Analog channel ANC6 and UART1 CTS1 PPS input.
18 RC7 bidirectional PORTC bit 7 GPIO with IOC. Analog channel ANC7 and UART1 RX1 PPS input.
19 VSS power_in Ground reference for logic and I/O. Connect to system 0 V. Second VSS pin on the 28-pin SPDIP/SOIC/SSOP package.
20 VDD power_in Positive supply. 2.3-5.5 V for PIC18F26K83 (F variant), 1.8-3.6 V for PIC18LF26K83 (LF variant). Decouple with 100 nF close to the pin.
21 RB0 bidirectional PORTB bit 0 GPIO with IOC and external interrupt INT0 (PPS). Analog channel ANB0, comparator C2IN1+ non-inverting input, Zero-Cross Detect (ZCD) input, CCP4 PPS input and CWG1 fault input.
22 RB1 bidirectional PORTB bit 1 GPIO with IOC and external interrupt INT1 (PPS). Analog channel ANB1, comparator C1IN3-/C2IN3-, default I2C2 SCL (PPS, bidirectional, I2C/SMBus tolerant) and CWG2 PPS input.
23 RB2 bidirectional PORTB bit 2 GPIO with IOC and external interrupt INT2 (PPS). Analog channel ANB2, default I2C2 SDA (PPS, bidirectional, I2C/SMBus tolerant) and CWG3 PPS input.
24 RB3 bidirectional PORTB bit 3 GPIO with IOC. Analog channel ANB3, comparator C1IN2-/C2IN2- inverting inputs and CAN receive input CANRX (PPS).
25 RB4 bidirectional PORTB bit 4 GPIO with IOC. Analog channel ANB4, ADC external trigger ADACT (PPS), Timer5 gate T5G, SMT2WIN and CLCIN2 PPS inputs.
26 RB5 bidirectional PORTB bit 5 GPIO with IOC. Analog channel ANB5, Timer1 gate T1G, SMT2SIG, CCP3 and CLCIN3 PPS inputs.
27 RB6/ICSPCLK bidirectional PORTB bit 6 GPIO with IOC. Also In-Circuit Serial Programming clock (ICSPCLK) and In-Circuit Debug clock. Analog channel ANB6 and UART2 CTS2 PPS input.
28 RB7/ICSPDAT bidirectional PORTB bit 7 GPIO with IOC. Also In-Circuit Serial Programming data (ICSPDAT) and In-Circuit Debug data. Analog channel ANB7, DAC1OUT2, Timer6 input T6IN and UART2 RX2 PPS input.

Key specifications

Parameter Value
Manufacturer Microchip
Package SSOP-28-208mil
Category MCU
Pins 28

Ordering variants

  • PIC18F26K83-II/SP
  • PIC18F26K83-II/SO
  • PIC18F26K83-II/SS
  • PIC18F26K83-II/ML
  • PIC18F26K83-II/MV

CAD (KiCad official)

  • Symbol: PIC18F26K83-I
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28-208mil (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Microchip datasheet (None pp, sha256 3d612db4be893d85, 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

Symbol & Footprint

Schematic Symbol

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PCB Footprint

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