PIC18F65K80T-I/PT - 64MHz 8-bit MCU 32KB Flash ECAN XLP | Microchip
MPN: PIC18F65K80T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.33 | $3,330.00 |
PIC18F65K80T-I/PT Overview
An 8-bit microcontroller (MCU) is a compact programmable computing device that integrates a CPU, memory, and peripherals on a single silicon die. Within the semiconductor taxonomy, MCUs fall under microcontrollers -> microprocessors -> logic ICs -> integrated circuits. The PIC18 family specifically uses Microchip's enhanced Harvard RISC architecture with 16-bit opcodes and 8-bit data path, designed for embedded control applications requiring deterministic real-time response. The 8-bit class occupies the lower-cost, lower-power end of the MCU spectrum compared with 16-bit MSP430 or 32-bit ARM Cortex-M parts, making it ideal for cost-sensitive automotive, industrial, and building-control nodes.
Key features include a 64 MHz internal oscillator delivering up to 16 MIPS instruction throughput, 1.8V to 5.5V wide operating voltage, integrated CAN 2.0B controller with six programmable buffers, a 12-bit A/D converter with up to 12 channels, and nanoWatt XLP sleep currents that enable years of battery life. The CTMU (Charge Time Measurement Unit) provides on-chip capacitance and time measurement for touch and proximity sensing without external analog ICs.
The architecture combines a C compiler-optimizable RISC core with a peripheral set tuned for networked embedded nodes: ECAN for in-vehicle or industrial-bus communication, Enhanced USART for asynchronous serial, MSSP for SPI/I2C, and dual analog comparators. Three dedicated hardware timers and a 16-bit PWM module handle motor-control and power-conversion timing.
Typical applications include automotive body and chassis ECAN nodes, building-automation controllers, industrial sensor hubs, low-power remote monitoring, and touch-interface human-machine interfaces. The 54 I/O pins easily drive multi-segment displays and multiple sensor channels simultaneously.
When designing with this device, pay attention to the wide 1.8V to 5.5V supply range - confirm decoupling and brown-out thresholds across the full window. The 'T' suffix denotes tape-and-reel packaging while the non-T version ships in tubes - electrical specifications are identical.
This page synthesizes distributor pricing, drop-in alternatives from the PIC18F6x family, and practical design notes not consolidated in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F65K80T-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 PIC18F65K80T-I/PT (same form factor and footprint) — differing in Package, ADC, Core Architecture, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F65K80-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F65K22T-I/PT
✅ Drop-In✓ In Stock
$2.88 / Unit
View Datasheet →PIC18F65K40-I/PT
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC18F65K22-I/PT
✅ Drop-In✓ In Stock
$3.45 / Unit
View Datasheet →PIC18F65K22T-I/PTRSL
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →PIC18F65K80T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Program Memory (Flash) | 32 KB (16K x 16) |
| RAM | 3.6 KB (3,648 bytes) |
| EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Operating Voltage | 1.8 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 12-bit, up to 12 channels |
| CAN | ECAN 2.0B, 6 receive/transmit buffers |
| Timers | 8-bit and 16-bit, multiple instances |
| Communication | ECAN, 2x Enhanced USART, MSSP (SPI/I2C) |
| CTMU | Charge Time Measurement Unit (touch/proximity) |
| Package | 64-pin TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C (Industrial) |
| Low-Power Technology | nanoWatt XLP |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F65K80T-I/PT Pin Configuration
| Pin 1 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Pin 2 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Pin 3 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| Pin 4 | RA3/AN3 — Port A bit 3 / Analog input 3 |
| Pin 5 | RA4 — Port A bit 4 |
| Pin 6 | RA5/AN4 — Port A bit 5 / Analog input 4 |
| Pin 7 | RA6/OSC2 — Port A bit 6 / Oscillator output |
| Pin 8 | RA7/OSC1 — Port A bit 7 / Oscillator input |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage |
| Pin 11 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| Pin 12 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| Pin 13 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| Pin 14 | RB3 — Port B bit 3 |
| Pin 15 | RB4 — Port B bit 4 |
| Pin 16 | RB5 — Port B bit 5 |
| Pin 17 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 18 | RB7/PGD — Port B bit 7 / ICSP data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RC0 — Port C bit 0 |
| Pin 22 | RC1 — Port C bit 1 |
| Pin 23 | RC2 — Port C bit 2 |
| Pin 24 | RC3/SCL — Port C bit 3 / I2C clock |
| Pin 25 | RC4/SDA — Port C bit 4 / I2C data |
| Pin 26 | RC5 — Port C bit 5 |
| Pin 27 | RC6/TX — Port C bit 6 / USART TX |
| Pin 28 | RC7/RX — Port C bit 7 / USART RX |
| Pin 29 | RD0 — Port D bit 0 |
| Pin 30 | RD1 — Port D bit 1 |
| Pin 31 | RD2 — Port D bit 2 |
| Pin 32 | RD3 — Port D bit 3 |
| Pin 33 | RD4 — Port D bit 4 |
| Pin 34 | RD5 — Port D bit 5 |
| Pin 35 | RD6 — Port D bit 6 |
| Pin 36 | RD7 — Port D bit 7 |
| Pin 37 | VSS — Ground reference |
| Pin 38 | VDD — Positive supply voltage |
| Pin 39 | RE0/AN5 — Port E bit 0 / Analog input 5 |
| Pin 40 | RE1/AN6 — Port E bit 1 / Analog input 6 |
| Pin 41 | RE2/AN7 — Port E bit 2 / Analog input 7 |
| Pin 42 | RE3 — Port E bit 3 |
| Pin 43 | RF0 — Port F bit 0 |
| Pin 44 | RF1 — Port F bit 1 |
| Pin 45 | RF2 — Port F bit 2 |
| Pin 46 | RF3 — Port F bit 3 |
| Pin 47 | RF4 — Port F bit 4 |
| Pin 48 | RF5 — Port F bit 5 |
| Pin 49 | RF6 — Port F bit 6 |
| Pin 50 | RF7 — Port F bit 7 |
| Pin 51 | RG0 — Port G bit 0 |
| Pin 52 | RG1 — Port G bit 1 |
| Pin 53 | RG2 — Port G bit 2 |
| Pin 54 | RG3 — Port G bit 3 |
| Pin 55 | RG4 — Port G bit 4 |
| Pin 56 | VSS — Ground reference |
| Pin 57 | VDD — Positive supply voltage |
| Pin 58 | RH0 — Port H bit 0 |
| Pin 59 | RH1 — Port H bit 1 |
| Pin 60 | RH2 — Port H bit 2 |
| Pin 61 | RH3 — Port H bit 3 |
| Pin 62 | RH4 — Port H bit 4 |
| Pin 63 | RH5 — Port H bit 5 |
| Pin 64 | RH6 — Port H bit 6 |
Typical Applications
PIC18F65K80T-I/PT is suitable for 7 applications: Automotive Body and Chassis ECAN Nodes, Building Automation Controllers, Industrial Sensor Hubs and Data Loggers, Low-Power Remote Monitoring with Battery Operation, Touch and Proximity Sensing Interfaces, Motor Control and PWM Driver Coordination, Medical Device Peripheral Controllers.
Automotive Body and Chassis ECAN Nodes
The PIC18F65K80T-I/PT integrates an ECAN 2.0B controller with six programmable buffers, making it ideal for automotive body-control modules, seat controllers, and climate-control nodes that communicate over a 1 Mbps CAN bus. The 54 I/O pins handle multiple sensors, actuators, and H-bridge outputs simultaneously without external bus-expanders. The wide 1.8V to 5.5V supply tolerates automotive 12V battery transients when paired with a 5V post-regulator. nanoWatt XLP sleep currents below 100 nA enable wake-on-CAN behavior during long parking periods, preserving battery life. Engineers typically pair this MCU with a CAN transceiver such as the MCP2551 or ATA6560.
Recommended
Building Automation Controllers
The PIC18F65K80T-I/PT suits HVAC controllers, smart-thermostat main boards, and lighting-control hubs that combine sensor acquisition, local display driving, and BACnet or Modbus networking. The 12-bit ADC with up to 12 channels reads multiple temperature, humidity, and pressure sensors simultaneously, while the Enhanced USARTs handle RS-485 communication to field devices. The 64-pin TQFP footprint is compact enough for wall-mount enclosures and offers sufficient I/O to drive character LCDs or small TFT displays directly. nanoWatt XLP sleep modes allow battery-backed clock and schedule retention through power outages. Pair with RS-485 transceivers like the MAX3485 for industrial networking.
Recommended
Industrial Sensor Hubs and Data Loggers
The PIC18F65K80T-I/PT serves as the central node in industrial sensor hubs that aggregate 4-20 mA loop measurements, digital switch inputs, and Modbus RTU data. The 12-bit ADC provides adequate resolution for process variables, and the 3.6 KB RAM buffers incoming telemetry packets before forwarding to a host PLC or gateway over ECAN or USART. The CTMU enables capacitive proximity sensing for liquid-level or material-detection applications without dedicated touch ICs. Wide operating temperature (-40C to +85C industrial grade) tolerates factory-floor environments. Typical designs add external EEPROM for data logging and a watchdog supervisor for fail-safe operation.
Recommended
Low-Power Remote Monitoring with Battery Operation
The PIC18F65K80T-I/PT's nanoWatt XLP technology enables multi-year battery life in remote monitoring deployments such as wireless utility meters, agricultural soil sensors, and asset trackers. Sleep currents below 100 nA in deep-sleep mode allow the device to wake only on external interrupt or periodic RTCC alarm, then perform sensor reading and transmit before returning to sleep. The 1.8V minimum supply supports direct operation from a single Li-SoCl2 cell without boost conversion. The wide operating voltage also handles solar-charged Li-ion battery systems where voltage droops during discharge. Pair with sub-GHz transceivers like the MRF89XA for wireless telemetry.
Recommended
Touch and Proximity Sensing Interfaces
The PIC18F65K80T-I/PT's integrated CTMU (Charge Time Measurement Unit) provides on-chip capacitive touch and proximity sensing without external analog ICs. This makes the part ideal for appliance control panels, industrial keypads, and human-machine interfaces where sealed touch surfaces must replace mechanical buttons. The CTMU measures capacitance changes via constant-current charge timing, supporting both self-capacitance and mutual-capacitance electrode patterns. The 54 I/O pins drive segmented LED or LCD feedback, while the 12-bit ADC monitors additional analog inputs. Pair with the Microchip mTouch library and design guides for production-ready touch firmware.
Recommended
Motor Control and PWM Driver Coordination
The PIC18F65K80T-I/PT coordinates BLDC, stepper, and brushed-DC motor control using its 16-bit PWM module with complementary outputs and three dedicated hardware timers. The 16 MIPS instruction throughput executes field-oriented control (FOC) algorithms for low-speed sensorless BLDC applications, while the ECAN interface communicates with system-level controllers over CANopen or DeviceNet. The wide 1.8V to 5.5V supply range is suitable for battery-powered tools and small appliances. Add gate drivers like the MCP1755 or external MOSFETs in DPAK packages for power-stage implementation.
Recommended
Medical Device Peripheral Controllers
The PIC18F65K80T-I/PT functions as a peripheral controller in medical devices such as infusion pumps, patient monitors, and laboratory analyzers where reliable CAN bus communication and low-power operation are required. The 12-bit ADC delivers adequate resolution for sensor readout, and the Enhanced USARTs interface with Bluetooth or WiFi modules for wireless telemetry. nanoWatt XLP sleep currents extend battery life in portable diagnostic equipment. The wide 1.8V to 5.5V supply accommodates single-cell Li-ion battery systems. Add an external watchdog supervisor and isolation barrier for FDA/IEC 60601 compliance considerations.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F65K80T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F65K80-I/PT | PIC18F65K22T-I/PT | PIC18F65K40-I/PT |
|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 32 KB |
| RAM | 3.6 KB | 3.6 KB | 8 KB | 2 KB |
| Maximum CPU Speed | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| ECAN Module | Yes (ECAN 2.0B) | Yes (ECAN 2.0B) | No | No |
| Core Independent Peripherals (CIP) | No | No | No | Yes |
| I/O Pins | 54 | 54 | 53 | 54 |
| ADC | 12-bit, up to 12 ch | 12-bit, up to 12 ch | 12-bit, up to 12 ch | 12-bit, up to 12 ch |
Key Differentiators
- Integrated ECAN 2.0B controller (vs PIC18F65K22T-I/PT)
- nanoWatt XLP extreme low-power technology (vs PIC18F65J94-I/PT)
- 32 KB Flash with 3.6 KB RAM for moderate-firmware CAN nodes (vs PIC18F65K40-I/PT)
Design Notes
The PIC18F65K80T-I/PT operates from 1.8V to 5.5V with multiple VDD/VSS pin pairs (pins 10/9, 20/19, 38/37, 57/56) that must each be decoupled with a 100nF ceramic capacitor placed within 3 mm of each pin. Bulk 4.7uF tantalum or aluminum-polymer capacitors on the main rail handle transient load steps from the ECAN transmitter or PWM outputs. nanoWatt XLP sleep currents below 100 nA require careful PCB design - keep the RTCC crystal traces short and shielded to minimize leakage paths during deep sleep.
For ECAN bus applications, the CAN TX/RX traces must be routed as a differential pair with 120-ohm characteristic impedance, kept under 1/4 wavelength of the CAN bus signal, and terminated with a 120-ohm resistor at each end of the bus. Place the CAN transceiver (e.g. MCP2551) adjacent to the MCU's CANTX/CANRX pins to minimize stub length. The ICSP clock and data pins (RB6/RB7) should be brought out to a 2x3 header or Tag-Connect footprint for in-circuit programming without interfering with the TQFP routing.
Common pitfalls include: (1) failing to configure the CONFIG words to enable the internal oscillator and disable the unused ADC channels as digital I/O, which can leave analog inputs floating; (2) exceeding the 5.5V absolute maximum on any I/O pin when interfacing to 5V signals while running VDD at 3.3V - use series resistors or level translators; (3) ignoring the MCLR pin reset behavior - add the standard 10k pull-up and 100nF decoupling for reliable in-circuit debug. According to Microchip errata documents, revision history should be checked for silicon revision-specific anomalies before locking down firmware.
The 64 MHz internal oscillator can generate harmonics that couple into nearby analog traces; place guard ground traces between the MCU and sensitive analog inputs (AN0-AN7 on PORTA and PORTE). When using the 12-bit ADC, add an RC low-pass filter (1kohm + 1nF, fc=160 kHz) on each analog input to reject RF interference. For capacitive touch applications using the CTMU, the electrode traces should be guarded with a driven shield trace to prevent moisture-induced false triggers.
Compliance Information
RoHS and REACH compliant per Microchip product documentation. AEC-Q100 not qualified at the standard -I industrial grade; automotive applications requiring AEC-Q100 should consider PIC18F variants with -E extended or automotive-grade suffix. Lead-free and halogen-free packaging confirmed per Microchip material declarations.
