PIC18F67K22-E/MR - 64-Pin 128KB Flash nanoWatt XLP MCU | Microchip
MPN: PIC18F67K22-E/MR ✓ Hoạt độngPIC18F67K22-E/MR Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC18F67K22-E/MR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC18F67K22-E/MR (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Special Features.
PIC18F67K22-I/MR
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Xem tài liệu →PIC18F67K22-E/MR Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 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 |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F67K22-E/MR
| Chân 1 | RB2 — PORTB I/O pin 2 / CTMU input |
| Chân 2 | RB3 — PORTB I/O pin 3 / CTMU input |
| Chân 3 | RB4 — PORTB I/O pin 4 / CTMU input |
| Chân 4 | RB5 — PORTB I/O pin 5 / CTMU input |
| Chân 5 | RB6 — PORTB I/O pin 6 / ICD PGC |
| Chân 6 | RB7 — PORTB I/O pin 7 / ICD PGD |
| Chân 7 | VDD — Positive supply |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1 — Crystal oscillator input |
| Chân 10 | OSC2 — Crystal oscillator output |
| Chân 11 | RC0 — PORTC I/O pin 0 |
| Chân 12 | RC1 — PORTC I/O pin 1 |
| Chân 13 | RC2 — PORTC I/O pin 2 |
| Chân 14 | RC3 — PORTC I/O pin 3 / SCL |
| Chân 15 | RC4 — PORTC I/O pin 4 / SDA |
| Chân 16 | RC5 — PORTC I/O pin 5 |
| Chân 17 | RC6 — PORTC I/O pin 6 / TX |
| Chân 18 | RC7 — PORTC I/O pin 7 / RX |
| Chân 19 | RE0 — PORTE I/O pin 0 / CAN-RX |
| Chân 20 | RE1 — PORTE I/O pin 1 / CAN-TX |
| Chân 21 | RE2 — PORTE I/O pin 2 |
| Chân 22 | RE3 — PORTE I/O pin 3 |
| Chân 23 | RE4 — PORTE I/O pin 4 |
| Chân 24 | RE5 — PORTE I/O pin 5 |
| Chân 25 | RE6 — PORTE I/O pin 6 |
| Chân 26 | RE7 — PORTE I/O pin 7 |
| Chân 27 | RF0 — PORTF I/O pin 0 |
| Chân 28 | RF1 — PORTF I/O pin 1 / AN6 |
| Chân 29 | RF2 — PORTF I/O pin 2 / AN7 |
| Chân 30 | RF3 — PORTF I/O pin 3 |
| Chân 31 | RF4 — PORTF I/O pin 4 |
| Chân 32 | RF5 — PORTF I/O pin 5 |
| Chân 33 | RF6 — PORTF I/O pin 6 |
| Chân 34 | RF7 — PORTF I/O pin 7 |
| Chân 35 | RG0 — PORTG I/O pin 0 |
| Chân 36 | RG1 — PORTG I/O pin 1 |
| Chân 37 | RG2 — PORTG I/O pin 2 |
| Chân 38 | RG3 — PORTG I/O pin 3 |
| Chân 39 | RG4 — PORTG I/O pin 4 |
| Chân 40 | RG5 — PORTG I/O pin 5 |
| Chân 41 | RA0 — PORTA I/O pin 0 / AN0 |
| Chân 42 | RA1 — PORTA I/O pin 1 / AN1 |
| Chân 43 | RA2 — PORTA I/O pin 2 / AN2 |
| Chân 44 | RA3 — PORTA I/O pin 3 / AN3 |
| Chân 45 | RA4 — PORTA I/O pin 4 |
| Chân 46 | RA5 — PORTA I/O pin 5 |
| Chân 47 | RA6 — PORTA I/O pin 6 / OSC2 |
| Chân 48 | RA7 — PORTA I/O pin 7 / OSC1 |
| Chân 49 | D- — USB data minus |
| Chân 50 | D+ — USB data plus |
| Chân 51 | VBUS — USB bus voltage sense |
| Chân 52 | VUSB — USB transceiver supply |
| Chân 53 | RD0 — PORTD I/O pin 0 |
| Chân 54 | RD1 — PORTD I/O pin 1 |
| Chân 55 | RD2 — PORTD I/O pin 2 |
| Chân 56 | RD3 — PORTD I/O pin 3 |
| Chân 57 | RD4 — PORTD I/O pin 4 |
| Chân 58 | RD5 — PORTD I/O pin 5 |
| Chân 59 | RD6 — PORTD I/O pin 6 |
| Chân 60 | RD7 — PORTD I/O pin 7 |
| Chân 61 | VCAP — Core voltage decoupling |
| Chân 62 | AVDD — Analog supply |
| Chân 63 | AVSS — Analog ground |
| Chân 64 | MCLR — Master clear reset, active low |
Ứng dụng tiêu biểu
PIC18F67K22-E/MR phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F67K22-E/MR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Integrated CTMU for capacitive touch without external components (vsExternal touch controller (e.g. dedicated TCH ICs))
- nanoWatt XLP technology with sub-100 nA sleep currents (vsPIC18F66K22 without XLP)
- Extended -40C to +125C operating temperature grade (vsPIC18F67K22-I/MR)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
