PIC18F65K80-I/PT - 8-bit MCU, 64MHz, 32KB Flash, ECAN, 64-TQFP | Microchip
MPN: PIC18F65K80-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.45 | $5.45 |
| 10 | $4.92 | $49.20 |
| 100 | $4.38 | $438.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.62 | $3,620.00 |
PIC18F65K80-I/PT Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, optimized for deterministic real-time control in cost- and power-sensitive embedded systems. MCUs sit within the broader semiconductor taxonomy of microcontrollers -> embedded processors -> logic ICs -> integrated circuits. The PIC18F family in particular uses a RISC-based Harvard architecture, allowing most instructions to execute in a single clock cycle and giving it the 16 MIPS throughput figure that the K80 series is rated for at 64 MHz.
Key features include an integrated ECAN 2.0B controller with both standard and extended identifiers, a 1.8V to 5.5V wide operating voltage range that lets the same part power automotive and battery-backed designs, ultra-low sleep currents that support nanoWatt XLP deep-sleep modes, multiple serial interfaces (UART, I2C, SPI, ECAN), and a hardware RTCC with calendar mode. The CTMU can be paired with the A/D converter to add capacitive touch sensing or accurate time-of-flight measurements without an external analog front end.
Typical applications include automotive body and chassis ECAN nodes, building automation gateways, industrial sensor interfaces, capacitive touch user interfaces, and battery-powered metering. The wide voltage range and ECAN peripheral make it a strong fit when designers want a single MCU platform that spans a 5V CAN-bus node and a low-power battery node on the same firmware base.
Drop-in alternatives for PIC18F65K80-I/PT — 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 PIC18F65K80-I/PT (same form factor and footprint) — differing in Core Architecture, Package, ADC, Operating Temperature Range, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F66K80-I/PT
✅ Drop-In✓ In Stock
$2.95 / Unit
View Datasheet →PIC18F65K80-I/PT Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC® XLP™ 18K |
| Core | PIC18 8-bit RISC |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 3.6 KB |
| EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Package / Case | 64-pin TQFP (10x10 mm) |
| Operating Temperature Range | -40 °C to +85 °C (Industrial) |
| ADC | 12-bit, up to 12 channels |
| CAN Module | ECAN 2.0B (standard and extended IDs) |
| CTMU | Yes (Charge Time Measurement Unit) |
| Communication Interfaces | UART, I2C (MSSP), SPI, ECAN |
| Mounting Type | Surface Mount |
| RoHS | Compliant |
PIC18F65K80-I/PT 64-pin tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for PIC18F65K80-I/PT (64-pin tqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC18F65K80-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F65K80-I/PT is suitable for 6 applications: Automotive CAN Body and Chassis Nodes, Building Automation Gateways, Industrial Sensor Interfaces, Capacitive Touch User Interfaces, Battery-Powered Smart Meters, Robotics and Motion Control Sub-Nodes.
Automotive CAN Body and Chassis Nodes
The PIC18F65K80-I/PT is a strong fit for automotive body and chassis ECAN nodes because of its integrated ECAN 2.0B controller with both standard and extended identifiers, 1.8 V to 5.5 V operation tolerant of 12 V regulated rails, and the PIC18 core's deterministic interrupt latency. Placed as a body controller on the vehicle CAN bus, it handles window/liftgate/wiper commands, reading switch inputs and driving FET outputs while participating in OBD-II diagnostics. The 12-bit ADC and CTMU add tire-pressure monitoring or occupancy sensing with no extra analog IC. The wide VDD range covers cold-crank and load-dump scenarios typical of 12 V automotive power.
Recommended
Building Automation Gateways
In BACnet/Modbus-to-Cloud bridges and HVAC controllers, the PIC18F65K80-I/PT provides the ECAN, UART, and I2C interfaces needed to talk to multiple building subsystems on a single chip. Its 32 KB Flash hosts small TCP/IP or BACnet stacks via MPLAB Harmony, while the 3.6 KB RAM buffers Modbus RTU frames at typical building baud rates. The wide 1.8 V to 5.5 V supply range lets it ride the 24 V building bus with a low-cost LDO, and the nanoWatt XLP sleep modes keep standby power below the 1 W limit set by many green-building codes. The CTMU can also implement glass-touch thermostat UIs.
Recommended
Industrial Sensor Interfaces
The PIC18F65K80-I/PT fits 4-20 mA loop-powered sensor transmitters, RTD conditioning front ends, and ECAN-connected industrial sensor hubs. Its 12-bit ADC captures process variables at the 1 mA loop-current noise floor, while the ECAN module publishes digitized readings at 1 Mbit/s to plant-wide controllers. The PIC18 instruction set's bit-manipulation primitives simplify IEC 61131-style boolean logic for alarm outputs and HMI handshake. NanoWatt XLP extends battery-only sensor nodes to multi-year lifetimes, and the wide operating voltage covers the 24 V industrial rail without a pre-regulator.
Recommended
Capacitive Touch User Interfaces
In appliances, white-goods HMIs, and access-control keypads, the PIC18F65K80-I/PT delivers capacitive touch sensing through the integrated CTMU and 12-bit ADC, removing the need for a dedicated touch IC. The CTMU applies a constant current to a touch pad and measures the resulting voltage ramp time, so each ADC channel becomes a touch channel with sub-pF resolution. A 32 KB Flash part can host a 12-key keypad scan, slider interpolation, and proximity wakeup in a single image. ECAN and UART let the same MCU talk to a host controller for richer UI feedback without extra hardware.
Recommended
Battery-Powered Smart Meters
Battery-backed water, gas, and heat meters use the PIC18F65K80-I/PT because of nanoWatt XLP deep-sleep currents and the wide 1.8 V to 5.5 V supply window. The CTMU captures pulse counts from reed switches or Hall sensors with microsecond resolution, while the ECAN or UART link delivers meter readings to a concentrator. A single lithium primary cell can power the meter for 10+ years when the MCU spends most of its life in sleep mode. The 12-bit ADC also reads battery voltage for end-of-life estimation without an external monitor.
Recommended
Robotics and Motion Control Sub-Nodes
Small robotics subsystems - motor drivers, end-effector controllers, and sensor pods - use the PIC18F65K80-I/PT as a CAN-connected sub-node tied to a central motion controller. ECAN enables multi-drop daisy-chained wiring that simplifies harness routing, while 16 MIPS provides headroom for trapezoidal commutation and PID loops at update rates up to 8 kHz per axis. The 12-bit ADC reads current-sense amplifiers for closed-loop torque control, and the PWM/ECCP peripherals drive H-bridges directly. The PIC18F65K80's robustness against EMI on long motor harnesses is a key advantage over lower-voltage MCUs.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F65K80-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F66K80-I/PT | PIC18F45K80-I/PT |
|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 44-pin TQFP - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 64 KB | 32 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| RAM | 3.6 KB | 3.6 KB | 3.6 KB |
| EEPROM | 1 KB | 1 KB | 1 KB |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| CAN Module | ECAN 2.0B | ECAN 2.0B | ECAN 2.0B |
| ADC Resolution | 12-bit | 12-bit | 12-bit |
Key Differentiators
- Integrated ECAN 2.0B with extended identifiers and advanced filtering (vs PIC18F45K80-I/PT)
- 32 KB Flash with nanoWatt XLP deep-sleep below 1 µA (vs PIC18F66K80-I/PT)
- CTMU capacitive touch without external analog IC (vs PIC18F4520-I/PT)
Design Notes
The PIC18F65K80-I/PT can operate down to 1.8 V, but at lower VDD the maximum oscillator frequency derates. According to the Microchip datasheet, run-to-64 MHz performance requires VDD >= 2.7 V typical. For designs that boot on a coin cell and switch to a higher rail, verify that the PLL lock range covers your transition voltage. Add a 100 nF decoupling capacitor within 5 mm of each VDD/VCAP pin, plus a bulk 10 µF tantalum or ceramic on the main rail.
Route the ECAN TX/RX lines as a differential pair with 120 Ω characteristic impedance on outer layers, keeping the pair length matched within 5 mm. Place the MCP2551 or similar CAN transceiver within 20 mm of the MCU CAN pins to minimize stub lengths. The 64-pin TQFP has a 0.5 mm pitch - use 0.15 mm/0.15 mm trace-and-space, and provide a 4-layer stackup with continuous ground reference under the MCU body for thermal spreading. Use Microchip's AN1249 PCB layout guidelines for ECAN EMC robustness.
Do not leave the MCLR pin floating - tie it to VDD through a 10 kΩ pull-up, or use the internal MCLR configuration in CONFIG3H. Failing to configure the PPS (Peripheral Pin Select) registers before enabling remappable peripherals will leave UART/SPI pins in their default state. Finally, the CTMU requires the A/D converter to be calibrated using the internal bandgap reference; skipping calibration degrades touch-sensing repeatability by 10-20%.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade (-40 to +85 °C); not AEC-Q100 qualified - choose PIC18F66K80-I/PT or dedicated Q-grade parts for automotive safety-critical applications.
