PIC18F26K80T-I/SS - 64KB Flash 8-bit MCU w/ ECAN & XLP | Microchip
MPN: PIC18F26K80T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.68 | $6.68 |
| 10 | $5.92 | $59.20 |
| 100 | $5.21 | $521.00 |
| 500 | $4.67 | $2,335.00 |
| 1,000 | $4.12 | $4,120.00 |
PIC18F26K80T-I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals such as ADC, timers, communication interfaces, and I/O into one device. Within the system hierarchy, the PIC18F26K80T-I/SS is an 8-bit microcontroller -> MCU -> embedded processor -> semiconductor. The "K80" sub-family is targeted at low-power, CAN-connected embedded nodes that previously required external CAN controllers.
Key features include integrated ECAN (Enhanced Controller Area Network) peripheral supporting CAN 2.0B, an on-chip 12-bit A/D converter with up to 11 channels, three analog comparators, four timers, two capture/compare/PWM modules, an 8-bit parallel slave port, and nanoWatt XLP sleep currents below 100 nA typical. The CTMU enables touch sensing, capacitive proximity, and time-of-flight measurement without external analog circuitry. The 64 MHz maximum oscillator yields 16 MIPS instruction throughput, ample for typical sensor and actuator control loops.
Architecturally, the PIC18F26K80T-I/SS uses an enhanced Harvard RISC core with 16-bit instructions and 8-bit data path, plus hardware multiply and a single-cycle 8x8 multiplication. ECAN is implemented as a dedicated peripheral with independent masks/filters, reducing firmware complexity for automotive/industrial CAN nodes.
Typical applications include automotive body and chassis ECAN nodes, building control (HVAC, elevator controllers), industrial sensor and actuator networks, low-power remote sensor nodes, and battery-powered metering with CAN backhaul. The wide 1.8 V-5.5 V range supports direct lithium battery and 3.3 V/5 V system buses.
When designing with this part, ensure the ICSP/ICD pins (PGC/PGD, MCLR) are properly accessible for in-circuit programming and debugging, and follow Microchip AN228 for ECAN bus termination and biasing. The 28-SSOP package has moderate thermal resistance and is suitable for low-power industrial nodes.
This page synthesizes verified distributor pricing, cross-family drop-in alternatives from the PIC18 K80 family, and practical ECAN/Low-Power design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC18F26K80T-I/SS — 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 PIC18F26K80T-I/SS (same form factor and footprint) — differing in Package, Timers, ADC, Program Memory (Flash), Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26K80-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K80-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K80T-I/SSVAO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F26K80-I/SO
✅ Drop-In✓ In Stock
$2.87 / Unit
View Datasheet →PIC18F26K80T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit enhanced Harvard RISC |
| Family | PIC18 K80 (XLP, ECAN) |
| Program Memory (Flash) | 64 KB (32K x 16) |
| Data Memory (RAM) | 3.6 KB (3.6K x 8) |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Instruction Throughput | 16 MIPS |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) |
| I/O Pins | 24 |
| ADC | 12-bit, up to 11 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| ECAN | Integrated CAN 2.0B |
| Comparators | 3 analog comparators |
| Timers | 4 (8-bit / 16-bit mix) |
| CCP/PWM Modules | 2 |
| Package | 28-pin SSOP (5.30 mm body) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC18F26K80T-I/SS Pin Configuration
| Pin 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital I/O RE3 |
| Pin 2 | RA0 — Digital I/O RA0 / analog AN0 |
| Pin 3 | RA1 — Digital I/O RA1 / analog AN1 |
| Pin 4 | RA2 — Digital I/O RA2 / analog AN2 / VREF- |
| Pin 5 | RA3 — Digital I/O RA3 / analog AN3 / VREF+ |
| Pin 6 | RA4 — Digital I/O RA4 / analog AN4 |
| Pin 7 | RA5 — Digital I/O RA5 / analog AN5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — Digital I/O RA7 / analog AN7 |
| Pin 10 | RA6 — Digital I/O RA6 / oscillator output |
| Pin 11 | RC0 — Digital I/O RC0 / analog AN8 |
| Pin 12 | RC1 — Digital I/O RC1 / analog AN9 |
| Pin 13 | RC2 — Digital I/O RC2 / analog AN10 |
| Pin 14 | RC3 — Digital I/O RC3 / analog AN11 / SCL |
| Pin 15 | RC4 — Digital I/O RC4 / SDA |
| Pin 16 | RC5 — Digital I/O RC5 |
| Pin 17 | RC6 — Digital I/O RC6 / TX |
| Pin 18 | RC7 — Digital I/O RC7 / RX |
| Pin 19 | VSS — Ground reference (digital) |
| Pin 20 | VDD — Positive supply voltage (1.8 V to 5.5 V) |
| Pin 21 | RB0 — Digital I/O RB0 / interrupt-on-change |
| Pin 22 | RB1 — Digital I/O RB1 / interrupt-on-change |
| Pin 23 | RB2 — Digital I/O RB2 / interrupt-on-change |
| Pin 24 | RB3 — Digital I/O RB3 / interrupt-on-change |
| Pin 25 | RB4 — Digital I/O RB4 / interrupt-on-change |
| Pin 26 | RB5 — Digital I/O RB5 / interrupt-on-change / PGM |
| Pin 27 | RB6 — Digital I/O RB6 / PGC (ICSP clock) |
| Pin 28 | RB7 — Digital I/O RB7 / PGD (ICSP data) |
Typical Applications
PIC18F26K80T-I/SS is suitable for 6 applications: Automotive Body & Chassis ECAN Nodes, Building Control & HVAC ECAN Networks, Industrial Sensor & Actuator Networks, Battery-Powered Remote Sensor Nodes, Touch & Proximity Sensing (CTMU), Elevator & Lift Control Panels.
Automotive Body & Chassis ECAN Nodes
The PIC18F26K80T-I/SS is a workhorse for distributed ECAN nodes in body electronics, chassis control, and HVAC modules where 1 Mbit/s CAN bus communication is mandatory. Its integrated ECAN 2.0B peripheral with 6 acceptance masks and 16 acceptance filters eliminates an external MCP2515 CAN controller and reduces BOM cost by ~$1 per node. The 64 MHz / 16 MIPS core easily handles CAN message parsing alongside sensor sampling at 1 kHz, and the 12-bit ADC supports ratiometric measurements on thermistor bridges. The wide 1.8-5.5 V supply range interfaces directly with automotive 12 V rails via a 5 V LDO, and -40C to +85C industrial temperature rating covers most cabin and engine-bay-adjacent placements.
Recommended
Building Control & HVAC ECAN Networks
In HVAC zoning, elevator control panels, and building automation, the PIC18F26K80T-I/SS acts as the local intelligence behind each ECAN node. Its nanoWatt XLP technology drops sleep current below 100 nA, enabling battery-backed thermostats and wireless bridge nodes that sleep most of the time and only wake on ECAN traffic or timed interrupts. The CTMU supports capacitive user-interface buttons without an external touch controller, and the 12-bit ADC reads multiple temperature/humidity sensors on a shared analog bus. The 24 GPIO on the 28-SSOP leave headroom for driving triac interfaces, relay coils, and LED status indicators.
Recommended
Industrial Sensor & Actuator Networks
The PIC18F26K80T-I/SS is well-suited for industrial 4-20 mA sensor transmitters, CAN-connected motor starters, and process-control I/O modules. Its 1.8-5.5 V range covers battery-powered wireless sensor nodes that harvest energy from the 4-20 mA loop, while the integrated ECAN peripheral aggregates multiple sensors onto a single CAN bus back to a PLC. The 12-bit ADC with 11 channels handles several analog inputs, and three on-chip comparators can implement window-detect alarms without firmware polling. NanoWatt XLP sleep currents extend battery life in remote industrial telemetry to years.
Recommended
Battery-Powered Remote Sensor Nodes
For remote, battery-powered sensing - environmental monitoring, smart agriculture, and asset tracking - the PIC18F26K80T-I/SS excels through its nanoWatt XLP technology. Sleep current below 100 nA and Run current around 5 mA at 1 MHz mean a single CR2032 or 2xAA cell can power a node for years with duty-cycled wake-and-transmit operation. The 12-bit ADC reads battery voltage, temperature, and external analog sensors with 11 channels, while the integrated ECAN peripheral wakes the node to participate in bus activity. The 1.8 V minimum supply lets the MCU run directly from a partially discharged battery pack.
Recommended
Touch & Proximity Sensing (CTMU)
The Charge Time Measurement Unit (CTMU) inside the PIC18F26K80T-I/SS enables capacitive touch buttons, sliders, and proximity sensors without any external analog IC. Combined with the 12-bit ADC, the CTMU measures sub-picofarad capacitance changes, supporting both self-capacitance and mutual-capacitance touch panels behind glass or plastic. The 24 GPIO on the 28-SSOP package accommodates up to 24 touch channels - more than sufficient for appliance control panels, security keypads, and human-machine interface (HMI) front panels in industrial equipment.
Recommended
Elevator & Lift Control Panels
The PIC18F26K80T-I/SS has a long history in elevator control panels and lift car controllers where its ECAN peripheral interconnects car-top boards, hall call panels, and the central controller over a robust CAN bus. The 64 KB Flash accommodates the floor-mapping tables and safety state machines typical of these systems. Industrial temperature rating (-40C to +85C) handles unconditioned machine-room environments, and the SSOP-28 package is rugged enough for the vibration profile of elevator installations. Multiple CCP/PWM channels can drive LED indicators, displays, and buzzers.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F26K80T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26K80-I/SS | PIC18F26K80-E/SS | PIC18F26K80T-I/SSVAO | PIC18F26K80-I/SO |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SOIC (wider body) |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 64 KB | 64 KB - same | 64 KB - same | 64 KB - same | 64 KB - same |
| RAM | 3.6 KB | 3.6 KB - same | 3.6 KB - same | 3.6 KB - same | 3.6 KB - same |
| CPU Speed | 64 MHz / 16 MIPS | 64 MHz - same | 64 MHz - same | 64 MHz - same | 64 MHz - same |
| ECAN | Yes (integrated) | Yes - same | Yes - same | Yes - same | Yes - same |
| Temperature Grade | -40C to +85C (I) | -40C to +85C - same | -40C to +125C (E = extended) | -40C to +85C, VAO aerospace screening | -40C to +85C - same |
| Packaging Format | Tape & Reel | Tube (hand assembly) | Tube (hand assembly) | Tape & Reel, VAO aerospace | Tube (SOIC) |
Key Differentiators
- Integrated ECAN eliminates external CAN controller (vs PIC18F25K80T-I/SS)
- nanoWatt XLP sleep current below 100 nA (vs PIC18F26K42T-I/SS)
- Wide 1.8 V to 5.5 V single-rail operation (vs PIC18F25K80T-I/SS)
Design Notes
The PIC18F26K80T-I/SS operates from 1.8 V to 5.5 V single supply. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20), with a bulk 1-10 uF tantalum or ceramic capacitor at the board supply input. For sleep-mode battery applications, ensure the regulator's quiescent current is below 1 uA (e.g., MCP1700 1.6 uA typical) to preserve nanoWatt XLP sleep current below 100 nA. Avoid using switches or ferrite beads in series with VDD that introduce voltage drops exceeding 0.3 V at peak load.
Route the ICSP/ICD pins (PGC = RB6, PGD = RB7) to a 6-pin header with MCLR (pin 1) and VSS accessible; this allows MPLAB ICD 3 or PICkit 4 in-circuit programming without removing the MCU. The CAN bus traces (CANTX/CANRX) must be impedance-controlled to 120 ohms differential, with termination resistors only at the cable ends (not at every node). Keep CAN traces away from switching power and clock signals, and use a ground plane under the bus traces to minimize emissions per Microchip AN228 ECAN design guide.
Common pitfalls when designing with PIC18F26K80T-I/SS: (1) forgetting the MCLR pull-up resistor (typically 10 kOhm to VDD) - without it the MCU will not exit reset reliably; (2) leaving the ECAN peripheral's CI/OFF bit set after initialization, silently disabling bus activity; (3) using the ADC without the recommended acquisition time (Tacq) - read Microchip DS39977 section 23 for proper impedance and clock settings; (4) assuming the CTMU can drive capacitive loads without a series resistor for ESD protection; (5) over-driving RA4 as an open-drain output without a pull-up. Cross-check errata DS80000491 before finalizing firmware.
For ECAN bus integrity, follow Microchip's AN228 ECAN Physical Layer guidelines: 120 ohm termination at each cable end (not at every node), biasing resistors of 2.7 kOhm to VCC and 1.3 kOhm to ground on one node only, and a common-mode choke on each node's CANH/CANL lines for noisy environments. The MCP2551 / MCP2561 transceiver handles the physical layer; PIC18F26K80T-I/SS provides only the digital ECAN controller. Keep CANH/CANL traces short, matched in length, and routed over a continuous ground plane.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified (use -Q1 ordering code for automotive qualification). Not formally halogen-free in datasheet but Microchip standard compliance applies.
