PIC18F26K83T-I/MX - 64KB Flash, CAN, 8-bit MCU | Microchip
MPN: PIC18F26K83T-I/MX ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.19 | $2,190.00 |
PIC18F26K83T-I/MX Overview
An 8-bit PIC microcontroller is a Harvard-architecture CMOS MCU that combines a RISC instruction set, on-chip Flash program memory, SRAM data memory, and a rich set of peripherals (timers, ADC, PWM, communication modules) into a single die. Within the broader taxonomy, the PIC18F26K83 sits below the PIC18 family → 8-bit MCU → microcontroller → embedded controller → semiconductor, and is positioned for low-power mixed-signal applications where CAN connectivity and analog integration are required.
Key differentiating features include ADC² (12-bit, with Capacitive Voltage Divider, averaging, filtering, and automatic threshold comparison), up to four dedicated PWM channels with edge-aligned and center-aligned modes, a Configurable Logic Cell (CLC), three 16-bit timers, four CCP modules, two UART, two SPI, and an I²C module. The integrated CAN 2.0B controller with filtering supports robust industrial and automotive networked nodes.
The PIC18F26K83 implements a 16-bit instruction word with a modified Harvard bus, dual 16-level hardware stack, and a peripheral pin select (PPS) scheme that lets designers remap digital peripherals onto a wide range of I/O pins, simplifying PCB layout. The on-chip 32kHz oscillator and PLL enable low-jitter operation while preserving XLP sleep performance.
Typical applications include industrial sensor nodes with CAN, HVAC controls, building automation, low-power IoT sensor hubs, capacitive touch user interfaces, and small motor-control stages where the integrated PWM and ADC simplify the BOM.
When designing with this device, take advantage of the ADC² CVD hardware for cap-touch buttons and sliders to eliminate external touch ICs, and use the PPS system to place peripheral signals on convenient pins without board rework.
This page synthesizes Microchip datasheet specifications, current distributor pricing, pin-compatible alternatives, and practical design notes that go beyond the catalog summary.
Drop-in alternatives for PIC18F26K83T-I/MX — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F26K83T-I/MX (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F25K83T-I/MX
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC18LF26K83-E/MX
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K83T-I/MX Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| SRAM | 4 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 64 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 12-bit ADC with Computation (ADC²) |
| Number of ADC Channels | Up to 11 |
| DAC | 5-bit output |
| CAN Module | CAN 2.0B with filtering |
| Timers | 3 x 16-bit |
| PWM Channels | Up to 4 x 10-bit |
| CCP Modules | 4 |
| Communication | 2 x UART, 2 x SPI, 1 x I²C |
| Peripheral Pin Select (PPS) | Yes |
| Configurable Logic Cell (CLC) | Yes |
| DMA | Yes |
| Comparators | 2 |
| Package | 28-UQFN (6x6 mm) |
| Operating Temperature | -40°C to +85°C (Industrial) |
| RoHS Status | Compliant |
PIC18F26K83T-I/MX Pin Configuration
| Pin 1 | RA0/AN0/C1IN0-/C2IN0-/DACOUT1/PPS — PORTA, General purpose I/O with analog input and DAC output |
| Pin 2 | RA1/AN1/C1IN1-/C2IN1-/PPS — PORTA, General purpose I/O with analog input |
| Pin 3 | RA2/AN2/C1IN0+/C2IN0+/PPS — PORTA, General purpose I/O with analog input |
| Pin 4 | RA3/AN3/C1IN1+/C2IN1+/PPS — PORTA, General purpose I/O with analog input |
| Pin 5 | RA4/AN4/C1OUT/C2OUT/PPS — PORTA, Comparator output |
| Pin 6 | RA5/AN5/PPS — PORTA, General purpose I/O |
| Pin 7 | RA6/AN6/PPS — PORTA, General purpose I/O |
| Pin 8 | RA7/AN7/PPS — PORTA, General purpose I/O |
| Pin 9 | VDD — Positive supply voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0/AN12/PPS — PORTB, General purpose I/O with analog input |
| Pin 12 | RB1/AN10/C1IN3-/C2IN3-/PPS — PORTB, General purpose I/O with analog input |
| Pin 13 | RB2/AN8/C1IN2-/C2IN2-/PPS — PORTB, General purpose I/O with analog input |
| Pin 14 | RB3/AN9/C1IN2+/C2IN2+/PPS — PORTB, General purpose I/O with analog input |
| Pin 15 | RB4/AN11/PPS — PORTB, General purpose I/O |
| Pin 16 | RB5/AN13/PPS — PORTB, General purpose I/O |
| Pin 17 | RB6/ICSPCLK/PPS — PORTB, ICSP clock pin |
| Pin 18 | RB7/ICSPDAT/PPS — PORTB, ICSP data pin |
| Pin 19 | RC0/PPS — PORTC, General purpose I/O |
| Pin 20 | RC1/CANTX/PPS — PORTC, CAN TX output |
| Pin 21 | RC2/CCP1/PPS — PORTC, CCP1 PWM output |
| Pin 22 | RC3/CANRX/PPS — PORTC, CAN RX input |
| Pin 23 | RC4/CCP2/PPS — PORTC, CCP2 PWM output |
| Pin 24 | RC5/PPS — PORTC, General purpose I/O |
| Pin 25 | RC6/PPS — PORTC, General purpose I/O |
| Pin 26 | RC7/PPS — PORTC, General purpose I/O |
| Pin 27 | VCAP — Voltage regulator capacitor pin |
| Pin 28 | MCLR — Master clear reset input |
Typical Applications
PIC18F26K83T-I/MX is suitable for 6 applications: Industrial CAN Sensor Node, HVAC Climate Control, Building Automation Lighting, Capacitive Touch User Interface, Low-Power IoT Sensor Hub, Small Appliance Motor Control.
Industrial CAN Sensor Node
The PIC18F26K83T-I/MX integrates CAN 2.0B, ADC², and 64 KB Flash which suits compact industrial sensor nodes. Its on-chip CAN controller with hardware filtering handles real-time node communication alongside analog signal conditioning.
Recommended
HVAC Climate Control
The PIC18F26K83T-I/MX handles analog temperature/humidity sensor inputs, drives PWM fan outputs, and exposes a CAN interface for networked HVAC zoning. ADC² averaging filters line-frequency noise on analog channels without external parts.
Recommended
Building Automation Lighting
In lighting controllers, the PIC18F26K83T-I/MX provides 4 PWM channels for LED dimming and ADC² for ambient lux or color sensing. Its XLP sleep currents below 1 µA extend battery life in wireless-light-switch designs.
Recommended
Capacitive Touch User Interface
Using ADC² CVD hardware, the PIC18F26K83T-I/MX implements up to 11 touch buttons or sliders without external analog ICs. Automatic threshold compare and oversampling reduce firmware load for medium-density human-machine interfaces.
Recommended
Low-Power IoT Sensor Hub
XLP deep-sleep draws under 1 µA while RAM is retained, enabling coin-cell-powered IoT sensor nodes. The integrated DMA moves sensor data without waking the CPU, extending battery life in multi-year deployments.
Recommended
Small Appliance Motor Control
With 4 dedicated PWM channels, 4 CCP modules, and 3 16-bit timers, the PIC18F26K83T-I/MX can drive BLDC or stepper control loops in small appliances. ADC² supports back-EMF sensing and over-current detection.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26K83T-I/MX — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F25K83T-I/MX | PIC18LF26K83-E/MX | PIC18F26K83T-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-SOIC - DIFFERENT |
| Flash Memory | 64 KB | 32 KB | 64 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB |
| Max CPU Speed | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V (low-power) | 2.3 V to 5.5 V |
| CAN Module | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B |
| ADC | 12-bit ADC² | 12-bit ADC² | 12-bit ADC² | 12-bit ADC² |
Key Differentiators
- ADC² with hardware CVD (vs PIC18F25K83T-I/MX)
- 64 KB Flash in 28-pin UQFN (vs PIC18F25K83T-I/MX)
- Integrated CAN 2.0B in compact UQFN (vs External MCP2515 + PIC18F25K50)
Design Notes
The 28-UQFN package uses bottom-contact pads and a central thermal pad. Per Microchip application note AN588, the central pad should be soldered to a copper pad of at least equal area on the PCB and connected to VSS via 4-9 thermal vias for heat spreading and electrical grounding. Standard SMD reflow profile per IPC/JEDEC J-STD-020 is acceptable.
For battery operation, leverage XLP modes: Sleep (CPU off, peripherals off) draws roughly 1 µA typical at 32 kHz; Deep Sleep (most peripherals off, RAM retained) draws under 1 µA. According to the datasheet, RTC with 32 kHz crystal and minimal wake-up sources keeps average current below 2 µA in many sensor apps.
Do not exceed 5.5 V on VDD or apply voltage to digital I/O when VDD is off; the PIC18F26K83 inputs clamp via ESD diodes and over-voltage can latch the part. Use Peripheral Pin Select (PPS) to remap digital functions to available I/O instead of leaving sensitive analog pins near switching traces, which can couple noise into ADC² conversions.
Place decoupling capacitors close to VDD and VSS: a 100 nF ceramic on each pair, plus a bulk 1 µF or 10 µF at the MCU VDD entry point. For CAN, place MCP2551 transceiver close to RC1/RC3 (CANTX/CANRX) pins and route the bus as a 120-ohm twisted pair with proper termination.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified by default - check PIC18F26K83T-I/MXVAO for automotive-grade. Lead-free and halogen-free per standard Microchip pedigree.