PIC18F67K40T-I/MR - 128KB Flash XLP 8-bit MCU 64-VQFN | Microchip
MPN: PIC18F67K40T-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.21 | $42.10 |
| 100 | $3.66 | $366.00 |
| 500 | $3.18 | $1,590.00 |
| 1,000 | $2.83 | $2,830.00 |
PIC18F67K40T-I/MR Overview
A PIC microcontroller is a compact programmable processor integrating CPU, Flash program memory, SRAM, EEPROM, and configurable peripherals onto a single die. The PIC18 family targets 8-bit high-performance applications with an enhanced instruction set, linear program memory, and Core Independent Peripherals that offload tasks from the CPU, allowing deterministic, low-overhead sensing and motor-control functions. Compared with smaller PIC16 and PIC12 families, PIC18 adds a wider instruction word, more memory, and richer peripherals including USB, CAN, and crypto engines on selected variants.
Key features include the ADCC module that automates touch acquisition with hardware averaging and oversampling, zero-cross detect for TRIAC control, peripheral pin select for flexible I/O mapping, and XLP nanoWatt sleep currents below 50 nA in deep sleep. The integrated 32 MHz internal oscillator eliminates an external crystal in cost-sensitive designs, while the 64-pin VQFN footprint enables compact, high-density PCB layouts for space-constrained industrial and consumer products.
Typical applications include 5V industrial control, capacitive touch user interfaces, BLDC/PMSM motor control, IoT sensor nodes, and battery-powered metering. The combination of XLP, 5V tolerance, and rich peripherals positions the PIC18F67K40 family for general-purpose embedded designs where reliability, low power, and integrated analog are critical.
Designers should observe the 64-pin VQFN land pattern and exposed-pad thermal recommendations from the manufacturer datasheet, decoupling bulk and ceramic caps on each power pin, and using PPS to remap digital peripherals to convenient I/O assignments.
This page consolidates distributor pricing, drop-in alternatives, application circuits, and design considerations not found in the manufacturer datasheet to accelerate component selection and PCB implementation.
Drop-in alternatives for PIC18F67K40T-I/MR — 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 PIC18F67K40T-I/MR (same form factor and footprint) — differing in ADC, Comparators, DAC, EEPROM, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F67K40-I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F66K40T-I/MR
✅ Drop-In✓ In Stock
$2.46 / Unit
View Datasheet →PIC18F67K40-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F67K40T-I/MR Maximum Ratings & Electrical Characteristics
| Product Family | PIC18F XLP High-Performance 8-bit MCU |
| Core Architecture | PIC18 (8-bit enhanced Harvard) |
| Maximum CPU Speed | 64 MHz (16 MIPS at 4x PLL; up to 64 MIPS at 64 MHz) |
| Program Flash Memory | 128 KB |
| SRAM | 4 KB |
| EEPROM | 1 KB |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit ADC with Computation (ADCC) |
| DAC | 2 x 5-bit DAC |
| Comparators | 2 comparators |
| PWM/CCP | CCP, ECCP, PWM modules (CWG included) |
| Timers | SMT, Timer0/1/2/3/4/5/6 |
| Watchdog | WWDT (Windowed Watchdog Timer) |
| Communication Peripherals | EUSART, I2C, SPI (PPS-mappable) |
| Special Features | CWG, CRC/Memory Scan, ZCD, Hardware CVD, PPS, XLP nanoWatt |
| Package | 64-pin VQFN (MR), 9x9 mm |
| Operating Temperature | -40C to +85C (Industrial grade, "I") |
| Mounting Type | Surface Mount |
| MSL Level | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
| Packaging | Tape and Reel ("T" suffix) |
PIC18F67K40T-I/MR 64-pin vqfn (mr), 9x9 mm Pin Configuration Guide
Pin configuration for PIC18F67K40T-I/MR (64-pin vqfn (mr), 9x9 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 PIC18F67K40T-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC18F67K40T-I/MR is suitable for 6 applications: Capacitive Touch User Interface, BLDC/PMSM Motor Control, Industrial 5V Sensor Hub, Battery-Powered IoT Sensor Node, Smart Metering & Energy Measurement, TRIAC-Dimmable Lighting Control.
Capacitive Touch User Interface
The PIC18F67K40T-I/MR is purpose-built for capacitive touch panels because of its 10-bit ADC with Computation (ADCC) that automates Capacitive Voltage Divider (CVD) acquisitions, plus zero-cross detect and CWG peripherals for control outputs. With 128 KB Flash, 4 KB SRAM, and XLP sleep currents under 50 nA, it can scan up to 24 touch channels while leaving the CPU free for UI logic. Compared with an external touch controller, the integrated ADCC reduces BOM and PCB area for white-good front panels, induction cooktops, and IoT control surfaces.
Recommended
BLDC/PMSM Motor Control
The PIC18F67K40T-I/MR supports sensorless BLDC and PMSM motor control via its complementary waveform generator (CWG), PWM/CCP modules, fast ADC sampling, and zero-cross detect for back-EMF sensing. Operating at 64 MHz / 16 MIPS, it can sustain 20 kHz PWM while closing the speed loop, and the 5V tolerance simplifies gate-driver interface circuits. The 64-VQFN footprint with exposed thermal pad handles continuous switching dissipation, making this part a strong fit for small fans, pumps, and appliance drives.
Recommended
Industrial 5V Sensor Hub
Industrial sensors in 5V environments benefit from the PIC18F67K40T-I/MR's wide 2.3V-5.5V operating range, which lets it interface directly with legacy 5V analog front ends without level shifters. The 10-bit ADCC, two comparators, two DACs, and PPS allow flexible signal conditioning for temperature, pressure, and flow sensors, while EUSART/SPI/I2C connect to host PLCs or displays. With 128 KB Flash, ample headroom remains for Modbus/RTU stacks and self-test firmware in factory automation modules.
Recommended
Battery-Powered IoT Sensor Node
XLP nanoWatt technology on the PIC18F67K40T-I/MR delivers deep-sleep currents below 50 nA, allowing coin-cell-powered IoT nodes such as wireless thermostats, leak detectors, and asset trackers to run for years. The 64 MHz core wakes in microseconds to service sensor reads, transmit via SPI-connected radios, and return to sleep. The 1 KB EEPROM tolerates million-cycle parameter updates and the WWDT plus CRC/SCAN memory monitoring add diagnostic robustness required by unattended deployments.
Recommended
Smart Metering & Energy Measurement
Energy meters require simultaneous voltage and current sampling with arithmetic processing, which the PIC18F67K40T-I/MR handles through its 10-bit ADCC at high sample rates and CWG-driven metrology timing. The 64-pin VQFN exposes enough I/O for LCD segment driving, button inputs, and isolated communication ports, while the 1 KB EEPROM stores tariff and tamper logs non-volatilely. With CRC/SCAN memory monitoring and WWDT, the device meets the reliability profile of utility-grade metering.
Recommended
TRIAC-Dimmable Lighting Control
The PIC18F67K40T-I/MR's zero-cross detect (ZCD) peripheral and complementary waveform generator (CWG) make it ideal for TRIAC-dimmable AC lighting, where line-voltage crossings trigger precise phase-angle modulation. The 5V tolerance interfaces directly with optocoupler drivers, and the XLP nanoWatt sleep modes keep standby power below 0.5 W to meet energy regulations. Designers can use PPS to reassign ZCD and PWM to convenient I/O pins, simplifying multi-zone wall-switch layouts.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F67K40T-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F67K40-I/MR | PIC18F66K40T-I/MR | PIC18F67K40T-I/PT | PIC18F67K40-E/MR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (MR) 9x9 mm | 64-VQFN (MR) 9x9 mm - same | 64-VQFN (MR) 9x9 mm - same | TQFP-64 (PT) 10x10 mm - different | 64-VQFN (MR) 9x9 mm - same |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Maximum CPU Speed | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS | 64 MHz / 16 MIPS |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Packaging Form | Tape and Reel | Tray | Tape and Reel | Tape and Reel | Tape and Reel |
Key Differentiators
- Integrated 10-bit ADCC with hardware CVD for capacitive touch (vs PIC18F67K40T-I/PT (TQFP-64 sibling))
- XLP nanoWatt deep-sleep current below 50 nA (vs PIC18F66K40T-I/MR (lower-pin variant))
- Industrial -40C to +85C rating with extended -40C to +125C option (vs PIC18F67K40T-I/PT (TQFP industrial))
Design Notes
The 64-pin VQFN (MR) package has a 9x9 mm body with an exposed thermal pad that MUST be soldered to the ground plane for both electrical reference and heat dissipation. Place a 0.1 uF ceramic decoupling capacitor on each VDD pin within 2-3 mm of the pin, plus a bulk 4.7-10 uF tantalum or ceramic cap adjacent to the device. The MR package has a perimeter land pattern at 0.5 mm pitch; the central EP requires an array of thermal vias to the inner ground plane.
For XLP nanoWatt designs, observe the brown-out reset (BOR) and low-voltage detect (LVD) configuration in the CONFIG registers - leaving BOR disabled saves quiescent current but risks memory corruption in low-battery conditions. Estimated: total active current at 64 MHz with all peripherals on is roughly 10-12 mA; deep sleep with WDT and RTCC only can drop below 50 nA. Provide a clean 2.3V-5.5V rail; high ripple may trip BOR or shift ADC readings.
When using the 10-bit ADCC at high acquisition rates, place the analog reference decoupling (VREF+/VREF-) close to the device with low-ESR ceramic caps. For capacitive-touch CVD applications, route the CVD shield trace under the touch sensor with a guard ring tied to a quiet digital output to suppress moisture false-triggers. PPS reassignment of digital functions to analog-adjacent pins can inject switching noise; isolate analog inputs with a 1 kohm series resistor and 100 pF shunt for sensitive channels.
Compliance Information
RoHS and lead-free per Microchip product page. The PIC18F67K40 family is not AEC-Q100 qualified; for AEC-Q100 applications consider PIC18F K42 or PIC18F Q84 families.
