PIC18LF67K40-I/MR - 128KB Flash 8-bit MCU, 64MHz | Microchip XLP
MPN: PIC18LF67K40-I/MR ✓ Hoạt độngPIC18LF67K40-I/MR Tóm tắt
An 8-bit PIC microcontroller is a RISC-based MCU using a Harvard architecture that fetches instructions and data on separate buses, enabling single-cycle instruction execution. Within the broader taxonomy, PIC18 devices sit between PIC16 mid-range parts and PIC32 32-bit devices, and the PIC18LF67K40 belongs to Microchip's XLP (eXtreme Low Power) family with nanoWatt XLP technology that targets battery-friendly designs. As a general-purpose microcontroller, it integrates substantial memory and rich peripherals in a single die, replacing multi-chip discrete designs.
Key features include 128 KB Flash (64K x 16), 1 KB EEPROM, 3562 bytes SRAM, 12-bit ADC with computation, multiple UART/SPI/I2C interfaces, hardware RTCC, and 32-bit CRC/SCAN for memory integrity verification. The 64-pin VQFN with exposed thermal pad (MR) offers a compact 9x9 mm footprint with low theta-JA for industrial thermal envelopes, while the Core Independent Peripherals (CIPs) - CWG, WWDT, and CRC/SCAN - allow deterministic operation without CPU intervention.
The device integrates a 64 MHz internal high-frequency oscillator, a 32 kHz low-frequency oscillator, and an HF PLL block that delivers 64 MHz system clocks from lower-frequency references. This flexible clock tree lets designers balance active MIPS against quiescent draw for battery-life optimization, with nanoWatt XLP sleep modes extending standby time into the sub-microamp range.
Typical applications include low-power IoT sensor nodes, industrial control panels, automotive body electronics, home appliances, and consumer human-machine interface (HMI) devices. Its rich peripheral set and XLP capability also suit battery-powered data loggers and remote controls where the 128 KB Flash accommodates Over-The-Air (OTA) bootloader plus application partitions.
When designing with this device, allocate a keep-out zone for the exposed pad and stitch thermal vias to inner copper planes for heat spreading. Configure the PPS I/O mapping carefully during firmware bring-up to avoid pin conflicts, and use MPLAB X IDE with the XC8 compiler for firmware development. Always validate peripheral assignments against Microchip's official PIC18(L)F67K40 datasheet before committing to a final design.
This page synthesizes distributor pricing, parametric data, drop-in alternatives, and practical design guidance not found in the standalone datasheet, helping engineers select and qualify the MPN faster than browsing distributor product pages alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF67K40-I/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 PIC18LF67K40-I/MR (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
PIC18F67K40-I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F65K80-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX340F512H-80I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF67K40-I/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit RISC, Harvard) |
| Family | PIC18F67K40 / XLP |
| Program Memory (Flash) | 128 KB (64K x 16) |
| EEPROM | 1 KB |
| SRAM | 3562 bytes |
| Maximum CPU Speed | 64 MHz |
| Supply Voltage (VCC) | 1.8 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial, 'I') |
| Digital I/O Pins | Up to 54 |
| ADC | 12-bit with Computation |
| Communication Interfaces | UART, SPI, I2C |
| Core Independent Peripherals (CIP) | CWG, WWDT, CRC/SCAN |
| Hộp | 64-pin VQFN-EP (MR) 9x9 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18LF67K40-I/MR
| Chân 1 | RA0 — Digital I/O / analog input |
| Chân 2 | RA1 — Digital I/O / analog input |
| Chân 3 | RA2 — Digital I/O / analog input |
| Chân 4 | RA3 — Digital I/O / analog input |
| Chân 5 | RA4 — Digital I/O / analog input |
| Chân 6 | RA5 — Digital I/O / analog input |
| Chân 7 | RA6 — Digital I/O / analog input |
| Chân 8 | RA7 — Digital I/O / analog input |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RA8 — Digital I/O / analog input |
| Chân 11 | RA9 — Digital I/O / analog input |
| Chân 12 | RA10 — Digital I/O / analog input |
| Chân 13 | RA11 — Digital I/O / analog input |
| Chân 14 | RA12 — Digital I/O / analog input |
| Chân 15 | RA13 — Digital I/O / analog input |
| Chân 16 | RA14 — Digital I/O / analog input |
| Chân 17 | RA15 — Digital I/O / analog input |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply (1.8-3.6 V) |
| Chân 20 | RB0 — Digital I/O / interrupt-on-change |
| Chân 21 | RB1 — Digital I/O / interrupt-on-change |
| Chân 22 | RB2 — Digital I/O / interrupt-on-change |
| Chân 23 | RB3 — Digital I/O / interrupt-on-change |
| Chân 24 | RB4 — Digital I/O / interrupt-on-change |
| Chân 25 | RB5 — Digital I/O / interrupt-on-change |
| Chân 26 | RB6 — Digital I/O / ICSPCLK |
| Chân 27 | RB7 — Digital I/O / ICSPDAT |
| Chân 28 | VSS — Ground reference |
| Chân 29 | VDD — Positive supply (1.8-3.6 V) |
| Chân 30 | RC0 — Digital I/O |
| Chân 31 | RC1 — Digital I/O |
| Chân 32 | RC2 — Digital I/O |
| Chân 33 | RC3 — Digital I/O |
| Chân 34 | RC4 — Digital I/O |
| Chân 35 | RC5 — Digital I/O |
| Chân 36 | RC6 — Digital I/O / TX |
| Chân 37 | RC7 — Digital I/O / RX |
| Chân 38 | VSS — Ground reference |
| Chân 39 | VDD — Positive supply (1.8-3.6 V) |
| Chân 40 | RD0 — Digital I/O |
| Chân 41 | RD1 — Digital I/O |
| Chân 42 | RD2 — Digital I/O |
| Chân 43 | RD3 — Digital I/O |
| Chân 44 | RD4 — Digital I/O |
| Chân 45 | RD5 — Digital I/O |
| Chân 46 | RD6 — Digital I/O |
| Chân 47 | RD7 — Digital I/O |
| Chân 48 | VSS — Ground reference |
| Chân 49 | RE0 — Digital I/O |
| Chân 50 | RE1 — Digital I/O |
| Chân 51 | RE2 — Digital I/O |
| Chân 52 | RE3 — Digital I/O |
| Chân 53 | MCLR — Master clear / reset (active low) |
| Chân 54 | RF0 — Digital I/O |
| Chân 55 | RF1 — Digital I/O |
| Chân 56 | RF2 — Digital I/O |
| Chân 57 | RF3 — Digital I/O |
| Chân 58 | RF4 — Digital I/O |
| Chân 59 | RF5 — Digital I/O |
| Chân 60 | RF6 — Digital I/O |
| Chân 61 | RF7 — Digital I/O |
| Chân 62 | VSS — Ground reference |
| Chân 63 | VDD — Positive supply (1.8-3.6 V) |
| Chân 64 | OSC1 — External oscillator input / CLKIN |
Ứng dụng tiêu biểu
PIC18LF67K40-I/MR phù hợp cho 6 Áp dụngs: Low-Power IoT Sensor Node, Industrial Control Panel HMI, Automotive Body Electronics, Home Appliance Control Board, Battery-Powered Data Logger, Consumer Remote Control / HMI Device.
Low-Power IoT Sensor Node
The PIC18LF67K40-I/MR fits battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology and 1.8-3.6 V operating range that aligns with single-cell Li-ion or 2xAA chemistries. With 128 KB Flash it can host a LoRaWAN/Sigfox stack plus application code, while the 12-bit ADC with computation handles analog sensor conditioning in hardware. The 3562 bytes SRAM accommodates small RTOS or buffering tasks; PPS routing simplifies PCB layout by remapping peripherals across any of the 54 I/O pins. At idle the LF67K40 drops to sub-microamp sleep current, extending coin-cell life to multi-year horizons.
Được đề xuất
Industrial Control Panel HMI
For industrial HMI panels, the PIC18LF67K40-I/MR's 128 KB Flash stores graphical menus plus communication stacks while the 64-pin VQFN-EP gives engineers up to 54 I/O pins for keypad scanning, LED driving, and LCD interfacing. The 12-bit ADC with computation simplifies touch-panel and rotary-encoder signal conditioning without CPU load. Its 1.8-3.6 V range suits 3.3 V industrial backplanes, and the wide -40C to +85C operating range covers factory-floor temperature demands. PPS flexibility allows designers to swap keypad connectors without firmware changes, shortening design cycles.
Được đề xuất
Automotive Body Electronics
The PIC18LF67K40-I/MR's industrial -40C to +85C temperature grade and 1.8-3.6 V operation fit body-electronics modules like seat controllers, mirror adjusters, and ambient lighting. The PIC18F67K40 variant extends the same peripheral set to 5 V for direct 12 V battery rail regulation. CIP blocks such as the Complementary Waveform Generator (CWG) drive LEDs and motor bridges deterministically without CPU load. The 32-bit CRC/SCAN block detects Flash corruption in safety-relevant routines, while the 12-bit ADC samples multiple analog sensors including temperature and current.
Được đề xuất
Home Appliance Control Board
For white goods and home appliances, the PIC18LF67K40-I/MR integrates EEPROM for storing user settings, 128 KB Flash for the main control loop, and the 12-bit ADC for temperature and current sensing. The CWG peripheral drives TRIAC-style heater controls, while multiple UART/SPI/I2C interfaces connect to display modules and wireless modules. Its 64-pin VQFN-EP footprint fits behind the appliance fascia, and the XLP sleep modes reduce standby power to meet energy-star ratings. CIPs run zero-crossing detection and PWM without CPU intervention.
Được đề xuất
Battery-Powered Data Logger
The PIC18LF67K40-I/MR is well matched to portable data loggers where its XLP sleep currents and 1.8-3.6 V input extend battery life across months of standby. The 128 KB Flash stores historical event records and configuration data, while the hardware RTCC keeps accurate timestamps across deep-sleep cycles. The 12-bit ADC with computation performs sensor averaging in hardware, offloading the CPU to maximize sleep duration. PPS routing lets engineers place I/O pins for clean analog routing on compact 4-layer PCBs.
Được đề xuất
Consumer Remote Control / HMI Device
The PIC18LF67K40-I/MR's 64-pin VQFN-EP package and rich peripheral set suit consumer HMI products like universal remote controls, smart-home keypads, and audio mixers. Its 128 KB Flash accommodates IR/RF protocol libraries plus user-interface code, while 3562 bytes SRAM buffers display refresh data. The CWG and 12-bit ADC handle capacitive-touch sensing and backlight dimming. With nanoWatt XLP the device wakes only on key press, drawing under a microampere in standby and supporting multi-year battery life on 2xAAA cells.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF67K40-I/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 | PIC18F67K40-I/MR | PIC18F65K80-I/MR | PIC32MX340F512H-80I/MR |
|---|---|---|---|---|
| Package | 64-pin VQFN-EP (MR) 9x9 mm | 64-pin VQFN-EP (MR) 9x9 mm - same | 64-pin VQFN-EP (MR) - same | 64-pin VQFN-EP (MR) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Core Architecture | 8-bit PIC18 RISC | 8-bit PIC18 RISC - same | 8-bit PIC18 RISC - same | 32-bit MIPS M4K |
| Maximum CPU Speed | 64 MHz | 64 MHz - same | 64 MHz - same | 80 MHz (+25%) |
| Program Memory (Flash) | 128 KB | 128 KB - same | 32 KB (-75%) | 512 KB (+300%) |
| SRAM | 3562 bytes | 3562 bytes - same | 2 KB (-44%) | 32 KB (+819%) |
| Supply Voltage | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 5.5 V | 2.3 V to 3.6 V |
| XLP / Sleep Current | nanoWatt XLP, sub-uA sleep | nanoWatt XLP, sub-uA sleep - same | nanoWatt XLP | Standard sleep, higher current |
| CAN/ECAN | No | No | Yes (ECAN) | No |
Bảo phân biệt quan trọng
- Lowest voltage XLP variant with 128 KB Flash in 64-pin VQFN-EP (vsPIC18F67K40-I/MR)
- Modern K40 peripheral set with 32-bit CRC/SCAN (vsPIC18F65K80-I/MR)
- 8-bit PIC18 architecture with 128 KB Flash (vsPIC32MX340F512H-80I/MR)
Ghi chú thiết kế
The 64-pin VQFN-EP (MR) package exposes a center thermal pad that MUST be soldered to a ground copper pour with a thermal via array (typically 5x5 vias on 1.0 mm pitch) for proper heat dissipation. Per Microchip application notes, omitting the EP solder connection can cause the junction temperature to rise 20-30 C above design targets and lead to erratic ADC readings in noisy environments. Allocate a clear keep-out zone of at least 0.3 mm around the EP pad to avoid solder wicking into signal vias.
Place 100 nF decoupling capacitors as close as possible to every VDD/VSS pair (the device has multiple pairs across the 64-pin package), plus a single bulk 4.7-10 uF tantalum or ceramic on the main supply rail. Per Microchip's PIC18(L)F67K40 datasheet, the XLP sleep currents depend critically on clean decoupling; noisy supplies cause the nanoWatt sleep modes to draw several mA instead of sub-uA, dramatically reducing battery life in IoT sensor designs.
Use the Peripheral Pin Select (PPS) feature to remap digital peripherals (UART, SPI, I2C, PWM) to any of the 54 digital I/O pins, simplifying PCB layout and allowing BOM reuse across product variants. Per Microchip datasheet, configure PPS mappings in firmware via the I/O mapping registers before enabling peripherals; failures here often manifest as 'dead' peripherals that look connected at the silicon level but route to the wrong physical pin, costing hours of debugging.
Do not assume the LF and F variants are interchangeable at 5 V operation - the PIC18LF67K40 is rated only to 3.6 V maximum, and applying 5 V can permanently damage the part. Per Microchip datasheet, when migrating from a 3.3 V prototype to a 5 V production design, substitute the PIC18F67K40-I/MR (same pinout, 2.3-5.5 V) instead of increasing VDD on the LF variant. Also verify the ICSP programming pins (PGED/PGEC) are accessible on the final PCB to allow in-circuit firmware updates.
Thông tin tuân thủ
RoHS and lead-free confirmed by Microchip product page; not AEC-Q100 qualified - the LF67K40 is intended for industrial and consumer use, while automotive designs should evaluate AEC-Q100-qualified PIC18 K40 variants.
