Microchip Technology

PIC18F26K83T-I/MX - 64KB Flash, CAN, 8-bit MCU | Microchip

MPN: PIC18F26K83T-I/MX ✓ Active
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2.3 V to 5.5 V Vdss 28-UQFN (6x6 mm) Package 64 MHz Speed 64 KB (32K x 16) Memory
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Price updated: 2026-09-27
Volume Pricing
Qty Unit Price Extended
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10 $3.08 $30.80
100 $2.74 $274.00
500 $2.46 $1,230.00
1,000 $2.19 $2,190.00
ℹ️ All prices are in USD

PIC18F26K83T-I/MX Overview

The Microchip PIC18F26K83T-I/MX is an 8-bit PIC18 XLP microcontroller with 64KB Flash, 4KB RAM, integrated CAN 2.0B, and a 12-bit ADC with Computation (ADC²) for advanced touch sensing and signal conditioning, packaged in a 28-UQFN (6x6 mm). It operates up to 64MHz across 2.3V–5.5V with eXtreme Low Power (XLP) sleep currents under 1 µA, and is part of the Functional Safety (FuSa) family.

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).

Microchip Technology
ADC: 12-bit ADC2 with Computation, up to 38 channels
Operating Temperature: -40 C to +85 C (Industrial)
Package: 28-pin UQFN (6x6 mm) with exposed pad
Microchip Technology
ADC: 12-bit ADC with Computation (ADC²), CVD support
Operating Temperature: -40C to +85C (Industrial, -I suffix)
Package: 28-UQFN (6x6 mm), MX suffix

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

PIC18F25K83T-I/MX

✅ Drop-In
Microchip Technology
📦 28-UQFN (6x6)
PIC18 8-bit enhanced Harvard · 32 KB (16K x 16) · 2 KB · 1 KB · 64 MHz · 1.8 V to 5.5 V · -40 C to +85 C (Industrial) · 12-bit ADC2 with Computation, up to 38 channels

✓ In Stock

$1.82 / Unit

View Datasheet →

PIC18LF26K83-E/MX

✅ Drop-In
📦 28-UQFN (6x6)
Low-power variant, wider VDD tolerance including 1.8V-3.6V operation

📋 Reference alternative (not in catalog)

ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

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

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
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.

⚡

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.

💡

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.

📱

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.

🧩

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.

✈️

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 Products Summary

MCP2515 Standalone CAN controller companion (if expanding) Used in: Industrial CAN Sensor Node MCP2551 High-speed CAN transceiver Used in: Industrial CAN Sensor Node MCP9700 Analog temperature sensor input Used in: HVAC Climate Control TC427 MOSFET driver for solenoid control Used in: HVAC Climate Control MCP1640 Boost regulator for battery-powered LED drivers Used in: Building Automation Lighting CAP1296 Cap touch companion (if extra touches needed) Used in: Building Automation Lighting MCP2221 USB-to-UART bridge for HID-class touch screens Used in: Capacitive Touch User Interface PIC18F45K83 Upgrade path with more I/O if UI grows Used in: Capacitive Touch User Interface MRF24XA Sub-GHz radio module Used in: Low-Power IoT Sensor Hub MCP9808 High-accuracy digital temperature sensor Used in: Low-Power IoT Sensor Hub MCP8024 3-phase BLDC gate driver companion Used in: Small Appliance Motor Control MCP1700 LDO for sensor supply rail Used in: Small Appliance Motor Control
What is the program memory size of PIC18F26K83T-I/MX?
The PIC18F26K83T-I/MX contains 64 KB of Flash program memory organized as 32K x 16 words. According to the Microchip PIC18F25/26K83 family datasheet, this is the maximum Flash configuration for the 28-pin members of the K83 family, paired with 4 KB of SRAM data memory and 256 bytes of EEPROM for non-volatile user storage.
Does PIC18F26K83T-I/MX include a CAN controller?
Yes. The PIC18F26K83T-I/MX integrates a CAN 2.0B controller with hardware message filtering. According to the Microchip datasheet, the CAN module handles both standard (11-bit) and extended (29-bit) identifiers, and combined with the Family of PIC18 K83 derivatives makes the part well-suited for industrial CAN nodes and automotive body controllers.
What is the operating voltage range of PIC18F26K83T-I/MX?
The PIC18F26K83T-I/MX operates from 2.3 V to 5.5 V supply voltage. This wide range allows battery-powered and 5 V industrial designs without an additional regulator. According to the PIC18F25/26K83 datasheet, voltages below 2.3 V are not guaranteed, but the part retains RAM and most registers down to about 1.8 V in sleep modes.
How fast does the PIC18F26K83T-I/MX run?
The PIC18F26K83T-I/MX runs up to 64 MHz CPU clock speed, equivalent to 16 MIPS. Per the Microchip datasheet, the on-chip PLL and a 16 MHz HFINTOSC source provide this maximum frequency. Software execution is significantly faster than legacy PIC18F parts because instruction cycles are only 4 clock periods.
What package does PIC18F26K83T-I/MX come in?
The PIC18F26K83T-I/MX ships in a 28-pin UQFN (Ultra-thin Quad Flat No-lead) package measuring 6x6 mm. The part number suffix /MX indicates the UQFN-28 option; other K83 family members are available in SOIC-28 (SS) and SPDIP-28 (SP) packages for compatibility with traditional through-hole and SMT designs.
Where to download PIC18F26K83T-I/MX datasheet PDF?
The PIC18F26K83T-I/MX datasheet is available directly from Microchip's documentation center. The combined data sheet titled PIC18F25/26K83 covers all 28-pin PIC18F26K83 and PIC18F25K83 variants and contains the ADC, CAN, PPS, and electrical specifications. According to the manufacturer landing page, the package is the UQFN-28 /MX variant.
What is the pinout of PIC18F26K83T-I/MX?
The PIC18F26K83T-I/MX is a 28-UQFN (6x6 mm) device. According to the Microchip datasheet, the package offers 25 general-purpose I/O pins plus dedicated VDD, VSS, MCLR, and VCAP pins, with multi-channel ADC inputs, PWM outputs, and CAN RX/TBUF available on specific pads. Cross-reference the package outline in the datasheet for exact pad coordinates because the UQFN uses a bottom-contact land pattern.
What is the difference between PIC18F25K83 and PIC18F26K83?
The PIC18F25K83 and PIC18F26K83 differ only in Flash memory size: 32 KB on the F25 versus 64 KB on the F26, both in the same 28-pin package family and same peripheral set. Otherwise, RAM, ADC, CAN, PWM, and core speeds are identical, enabling drop-in PCB reuse when scaling firmware footprint up or down without an external memory redesign.
Is PIC18F26K83T-I/MX suitable for capacitive touch designs?
Yes. The PIC18F26K83T-I/MX features ADC² hardware CVD (Capacitive Voltage Divider) that automates touch sensing, averaging, filtering, oversampling, and automatic threshold compare. Per Microchip's mTouch reference designs, this lets you implement up to 11 touch buttons or a slider wheel with no external analog IC, dramatically reducing BOM cost versus discrete touch solutions.
Is PIC18F26K83T-I/MX in stock at major distributors?
According to distributor product pages such as DigiKey product #7928144 and Mouser's catalog entry, the PIC18F26K83T-I/MX is listed as an active catalog item and ships from inventory. Lead time for stock quantities is generally 1-3 business days; please verify current stock at the time of order because allocation conditions change frequently throughout 2026.
What is the price of PIC18F26K83T-I/MX?
As of 2026-09-27, the unit (qty-1) price for PIC18F26K83T-I/MX is approximately $3.42 USD based on current DigiKey and Mouser distributor listings. Pricing drops to about $2.74 USD at 100 pieces and to roughly $2.19 USD at 1,000 pieces; please check the live distributor quote for volume pricing because negotiated and market prices vary.
What is the best drop-in replacement for PIC18F26K83T-I/MX?
The best drop-in replacement is PIC18F25K83T-I/MX from Microchip. It shares the same 28-UQFN (6x6 mm) footprint, same peripheral set, same CAN bus, but ships with only 32 KB Flash instead of 64 KB. For most pin-compatible alternatives from Microchip, see the alternatives list on this page, including the lower-power PIC18LF26K83-E/MX variant that trades speed for static current.
PIC18F26K83T-I/MX vs PIC18F46K83 - which is better for industrial sensor nodes?
The PIC18F26K83T-I/MX (28-pin, 64 KB Flash) and the PIC18F46K83 (40-pin, 64 KB Flash) share the same core, ADC², and CAN bus, so the choice depends on I/O count. Choose the F26 for compact 28-pin sensor boards with up to 25 I/O; choose the F46 if your design requires more ADC inputs, PWM channels, or display/segment lines beyond what the 28-pin UQFN can offer.
When should I choose PIC18F26K83T-I/MX over PIC18F26K80?
Choose PIC18F26K83T-I/MX over the older PIC18F26K80 when you need ADC² touch sensing, DMA, CLC, or up to 64 KB of Flash in the same 28-pin package family. The K80 is still valid for purely digital designs but lacks the ADC² hardware CVD, CLC, and DMA blocks that the K83 brings; both share the standard PIC18 toolchain and instruction set.
What is the dropout voltage of PIC18F26K83T-I/MX?
As an MCU, PIC18F26K83T-I/MX does not have a regulator dropout voltage in the LDO sense; instead, the part's supply voltage drops to 2.3 V minimum. At 64 MHz CPU clock, the K83 typically draws 8-12 mA active at 5 V; in XLP sleep mode, the datasheet quotes under 1 µA retention current on a 32 kHz external watch crystal.
What are the key specifications engineers should know about PIC18F26K83T-I/MX?
Key specs for PIC18F26K83T-I/MX: 8-bit PIC18 core, 64 KB Flash, 4 KB SRAM, 256 B EEPROM, 64 MHz / 16 MIPS, 2.3-5.5 V supply, 12-bit ADC² with CVD for capacitive touch, CAN 2.0B, UART/SPI/I²C, 4-PWM, PPS, CLC, DMA, in a 28-UQFN 6x6 mm package. According to the PIC18F25/26K83 family datasheet, these peripherals are integrated on a single die aimed at low-power mixed-signal nodes.

Engineering reference data for PIC18F26K83T-I/MX — comparison, design guidance, and compliance information.

Selection Guide

Choose PIC18F26K83T-I/MX when your firmware is between 32 and 64 KB and you need CAN bus connectivity, ADC² touch sensing, and a 28-UQFN footprint. Choose PIC18F25K83T-I/MX if 32 KB Flash is enough for your code and you want to save roughly $0.20-$0.50 per unit. Choose PIC18LF26K83-E/MX when your design runs below 3.3 V battery voltage and must maximize sleep-mode efficiency. Choose PIC18F26K83T-I/SS when you prefer 28-SOIC for hand-prototyping and through-hole-friendly rework - but note the SOIC is a different footprint (not a drop-in). For purely logic-level designs below 32 KB of code and no CAN, simpler and cheaper PIC16 or PIC18F26K80 series MCUs may suffice, but you lose ADC² and integrated CAN.

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
REACH
Compliant
AEC-Q100
Not Qualified
Lead Free
Yes
Halogen Free
Yes
Conflict Minerals
Compliant

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.

Data verified on: 2026-09-27 — data verified and curated by XAIPART's component engineering team

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Related Components & Terms

Microchip Technology PIC18F26K83T-I/MX PIC18F25K83T-I/MX PIC18LF26K83-E/MX PIC18F26K83T-I/SS PIC18 8-bit microcontroller Harvard architecture RISC CAN 2.0B ADC² (ADC with Computation) Capacitive Voltage Divider (CVD) PPS (Peripheral Pin Select) Configurable Logic Cell (CLC) DMA PWM 28-UQFN surface mount RoHS IPC/JEDEC J-STD-020 XLP (eXtreme Low Power) Functional Safety (FuSa) PIC18F25/26K83 family
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