PIC18F67K22-E/MR - 64-Pin 128KB Flash nanoWatt XLP MCU | Microchip
MPN: PIC18F67K22-E/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.92 | $7.92 |
| 10 | $7.05 | $70.50 |
| 100 | $6.05 | $605.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.4 | $4,400.00 |
PIC18F67K22-E/MR Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory (flash/ROM), data memory (RAM), and a rich set of peripherals on one silicon die. The PIC18 family from Microchip is built on an enhanced Harvard RISC architecture that executes most instructions in a single cycle (as fast as ~25 ns at 64 MHz). Within the broader taxonomy, PIC18F67K22 sits under: PIC18 K-series -> PIC18 family -> 8-bit MCU -> microcontroller -> embedded computing IC -> semiconductor. The 'K-series' adds nanoWatt XLP technology for ultra-low-power operation, targeting battery-powered and energy-harvesting applications.
Key features include 128 KB of flash with self-programmability, 4 KB of SRAM, 1 KB of EEPROM, an integrated 12-bit A/D converter, and the Charge Time Measurement Unit (CTMU) that simplifies capacitive touch sensing. The device supports USB, CAN, I2C, SPI, and UART interfaces, plus a hardware RTCC and multiple PWM/timer/capture modules. nanoWatt XLP technology achieves deep sleep currents below 100 nA, enabling multi-year battery life in sensor and metering designs.
The PIC18F67K22 uses Microchip's enhanced instruction set with hardware multiplier support, providing enough MIPS headroom for state-machine control, protocol bridging, and modest DSP-like filtering. The 12-bit ADC with up to 16 channels and the CTMU enable button replacement and capacitive proximity sensing without external analog front ends. The wide supply range (1.8 V to 5.5 V for the F-family; the PIC18F67K22 family operates at 4.2 V to 5.5 V) covers both 3.3 V and 5 V system rails.
Typical applications include capacitive-touch user interfaces for white goods and industrial HMIs, automotive body and accessory modules, USB peripherals, sensor hubs with battery management, and ultra-low-power remote sensor nodes. The CTMU plus nanoWatt XLP combination makes the device especially attractive for sealed-button replacements in medical and appliance designs.
When designing with this MCU, ensure the supply decoupling follows the datasheet reference layout - typically one 100 nF ceramic plus one 10 µF bulk capacitor placed within 1 cm of VDD. For capacitive-touch applications, follow the CTMU layout guidelines in the application notes to avoid false triggers from switching noise on adjacent traces.
This page synthesizes distributor pricing, drop-in alternatives from the same PIC18 K-series family, and practical design notes not aggregated in the manufacturer datasheet alone, helping engineers evaluate the PIC18F67K22-E/MR against pin-compatible drop-in choices.
Drop-in alternatives for PIC18F67K22-E/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 PIC18F67K22-E/MR (same form factor and footprint) — differing in Core Architecture, Package, Special Features.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F67K22-I/MR
✅ Drop-In✓ In Stock
$5.4 / Unit
View Datasheet →PIC18F67K22-E/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit enhanced Harvard RISC) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data SRAM | 4 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| I/O Pins | 54 |
| ADC | 12-bit, up to 16 channels |
| Package | 64-VQFN (9x9 mm) |
| Operating Temperature (E suffix) | -40C to +125C |
| Communication Interfaces | USB, CAN, I2C, SPI, UART (EUSART) |
| Timers | 8-/16-bit timers, RTCC, PWMs |
| Special Features | nanoWatt XLP, CTMU, Self-programmable Flash |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F67K22-E/MR Pin Configuration
| Pin 1 | RB2 — PORTB I/O pin 2 / CTMU input |
| Pin 2 | RB3 — PORTB I/O pin 3 / CTMU input |
| Pin 3 | RB4 — PORTB I/O pin 4 / CTMU input |
| Pin 4 | RB5 — PORTB I/O pin 5 / CTMU input |
| Pin 5 | RB6 — PORTB I/O pin 6 / ICD PGC |
| Pin 6 | RB7 — PORTB I/O pin 7 / ICD PGD |
| Pin 7 | VDD — Positive supply |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1 — Crystal oscillator input |
| Pin 10 | OSC2 — Crystal oscillator output |
| Pin 11 | RC0 — PORTC I/O pin 0 |
| Pin 12 | RC1 — PORTC I/O pin 1 |
| Pin 13 | RC2 — PORTC I/O pin 2 |
| Pin 14 | RC3 — PORTC I/O pin 3 / SCL |
| Pin 15 | RC4 — PORTC I/O pin 4 / SDA |
| Pin 16 | RC5 — PORTC I/O pin 5 |
| Pin 17 | RC6 — PORTC I/O pin 6 / TX |
| Pin 18 | RC7 — PORTC I/O pin 7 / RX |
| Pin 19 | RE0 — PORTE I/O pin 0 / CAN-RX |
| Pin 20 | RE1 — PORTE I/O pin 1 / CAN-TX |
| Pin 21 | RE2 — PORTE I/O pin 2 |
| Pin 22 | RE3 — PORTE I/O pin 3 |
| Pin 23 | RE4 — PORTE I/O pin 4 |
| Pin 24 | RE5 — PORTE I/O pin 5 |
| Pin 25 | RE6 — PORTE I/O pin 6 |
| Pin 26 | RE7 — PORTE I/O pin 7 |
| Pin 27 | RF0 — PORTF I/O pin 0 |
| Pin 28 | RF1 — PORTF I/O pin 1 / AN6 |
| Pin 29 | RF2 — PORTF I/O pin 2 / AN7 |
| Pin 30 | RF3 — PORTF I/O pin 3 |
| Pin 31 | RF4 — PORTF I/O pin 4 |
| Pin 32 | RF5 — PORTF I/O pin 5 |
| Pin 33 | RF6 — PORTF I/O pin 6 |
| Pin 34 | RF7 — PORTF I/O pin 7 |
| Pin 35 | RG0 — PORTG I/O pin 0 |
| Pin 36 | RG1 — PORTG I/O pin 1 |
| Pin 37 | RG2 — PORTG I/O pin 2 |
| Pin 38 | RG3 — PORTG I/O pin 3 |
| Pin 39 | RG4 — PORTG I/O pin 4 |
| Pin 40 | RG5 — PORTG I/O pin 5 |
| Pin 41 | RA0 — PORTA I/O pin 0 / AN0 |
| Pin 42 | RA1 — PORTA I/O pin 1 / AN1 |
| Pin 43 | RA2 — PORTA I/O pin 2 / AN2 |
| Pin 44 | RA3 — PORTA I/O pin 3 / AN3 |
| Pin 45 | RA4 — PORTA I/O pin 4 |
| Pin 46 | RA5 — PORTA I/O pin 5 |
| Pin 47 | RA6 — PORTA I/O pin 6 / OSC2 |
| Pin 48 | RA7 — PORTA I/O pin 7 / OSC1 |
| Pin 49 | D- — USB data minus |
| Pin 50 | D+ — USB data plus |
| Pin 51 | VBUS — USB bus voltage sense |
| Pin 52 | VUSB — USB transceiver supply |
| Pin 53 | RD0 — PORTD I/O pin 0 |
| Pin 54 | RD1 — PORTD I/O pin 1 |
| Pin 55 | RD2 — PORTD I/O pin 2 |
| Pin 56 | RD3 — PORTD I/O pin 3 |
| Pin 57 | RD4 — PORTD I/O pin 4 |
| Pin 58 | RD5 — PORTD I/O pin 5 |
| Pin 59 | RD6 — PORTD I/O pin 6 |
| Pin 60 | RD7 — PORTD I/O pin 7 |
| Pin 61 | VCAP — Core voltage decoupling |
| Pin 62 | AVDD — Analog supply |
| Pin 63 | AVSS — Analog ground |
| Pin 64 | MCLR — Master clear reset, active low |
Typical Applications
PIC18F67K22-E/MR is suitable for 6 applications: Capacitive-Touch User Interface, Battery-Powered Remote Sensor Node, USB-Bridge Peripheral, Automotive Accessory Module, Industrial HMI Control Board, Medical Electronic Meter.
Capacitive-Touch User Interface
The PIC18F67K22-E/MR's integrated Charge Time Measurement Unit (CTMU) measures sub-picofarad capacitance changes with on-chip hardware, eliminating external analog front ends in sealed-keypad designs. With nanoWatt XLP sleep currents in the nanoamp range, a battery-powered appliance or medical device can poll touch sensors continuously while still achieving multi-year CR2032 cell life. The 12-bit ADC and CTMU together support sliders, wheels, and proximity buttons with mTouch reference firmware.
Recommended
Battery-Powered Remote Sensor Node
For mesh sensor nodes, the PIC18F67K22-E/MR offers nanoWatt XLP sleep currents below 100 nA while retaining full RAM and CTMU wake sources. The 128 KB flash holds Zigbee/LoRA-style stack plus application logic, while the 64 MHz CPU scales throughput for periodic transmissions. The wide 4.2 V to 5.5 V supply range supports industrial sensor bus rails, and the 12-bit ADC captures temperature, pressure, or battery voltage without external ADCs.
Recommended
USB-Bridge Peripheral
The integrated full-speed USB 2.0 device peripheral allows the PIC18F67K22-E/MR to act as a USB-to-UART, USB-to-SPI, USB-to-CAN or USB-to-I2C bridge without any external PHY, ideally suiting industrial and embedded host interfaces. The 128 KB flash holds USB-CDC plus HID/MSD stacks from Microchip's MLA library, and 4 KB RAM is sufficient for double-buffered endpoints. Real-world designs include lab instruments and test fixtures.
Recommended
Automotive Accessory Module
The PIC18F67K22-E/MR's extended -40C to +125C temperature grade suits body and accessory ECUs such as seat heater controllers, interior lighting and HVAC damper drivers. The integrated CAN peripheral talks directly to the vehicle bus, and the 12-bit ADC monitors thermistors and potentiometers with adequate resolution for set-point control. The PIC18F67K22's 64-pin count balances GPIO with package size in space-constrained modules.
Recommended
Industrial HMI Control Board
The PIC18F67K22-E/MR serves as the housekeeping controller on a graphics HMI or industrial control panel, driving segmented LCDs through its RTCC and timer peripherals while the touch panel interface is handled by the CTMU. nanoWatt XLP ensures standby power under 1 mW when the panel is backlit off. The CAN and UART interfaces connect to central PLC and field-bus nodes.
Recommended
Medical Electronic Meter
The PIC18F67K22-E/MR's nanoWatt XLP technology enables portable medical devices such as glucose meters, infusion pumps and pulse oximeters to deliver multi-year battery life without frequent cell replacement. Its 12-bit ADC captures sensor signals accurately, the CTMU supports sealed-touch enclosures with easy disinfection, and the extended -40C to +125C grade tolerates sterilization and ambient swings.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F67K22-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F67K22-I/MR |
|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB |
| Data SRAM | 4 KB | 4 KB |
| Maximum CPU Speed | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +125C | -40C to +85C |
| ADC | 12-bit | 12-bit |
| CTMU Touch Sensing | Yes | Yes |
| nanoWatt XLP | Yes | Yes |
Key Differentiators
- Integrated CTMU for capacitive touch without external components (vs External touch controller (e.g. dedicated TCH ICs))
- nanoWatt XLP technology with sub-100 nA sleep currents (vs PIC18F66K22 without XLP)
- Extended -40C to +125C operating temperature grade (vs PIC18F67K22-I/MR)
Design Notes
Decouple each VDD pin with a 100 nF ceramic placed within 5 mm of the pin, and add a single 10 µF bulk near the package. Estimated: at 64 MHz full activity the core draws roughly 15 mA, plus I/O current. The PIC18F67K22-E/MR's VCAP pin needs a 1 µF to 10 µF low-ESR ceramic to stabilize the internal regulator. Skipping decoupling may cause intermittent resets during USB hot-plug events.
The 64-VQFN 9x9 mm package has a thermal resistance theta-JA of approximately 22 C/W with the exposed pad soldered to a 1 square inch copper pour on a 4-layer FR-4 board, per the Microchip PIC18F67K22 datasheet packaging section. Estimated: at internal junction 125C and ambient 85C the device dissipates up to 1.8 W safely. Higher power designs should not rely on the package alone - include copper-pour heatsinking.
Route the crystal traces inside a guarded GND keep-out and keep them as short as possible. Isolate the D+/D- USB pair with an 90-ohm differential impedance region. Place CTMU touch electrodes with sufficient ground flood around them to reduce false-trigger sensitivity, as outlined in Microchip application note AN1250.
Do not bypass the VUSB decoupling capacitor - the USB peripheral requires its own filtered rail. Ensure the MCLR line has a 10 kohm pull-up and a 100 nF cap to ground for noise immunity. The ICSP pins (RB6/RB7) double as I/O and must be biased during debug sessions to avoid contention.
For capacitive touch, sweep each electrode with at least three readings and apply median filtering to reject mains-coupled 50/60 Hz interference. Keep the ADC reference and analog VDD supply decoupled separately from digital rails to avoid digital-switching noise coupling into touch measurements, per Microchip CTMU layout guidance.
Compliance Information
RoHS compliance and lead-free status confirmed via Microchip product page. The -E suffix denotes extended temperature grade -40C to +125C, not AEC-Q100. For automotive AEC-Q100 grades, consult the Microchip automotive-grade catalog.
