PIC18LF67K40-I/MR - 128KB Flash 8-bit MCU, 64MHz | Microchip XLP
N.º da peça: PIC18LF67K40-I/MR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.6 | $5,60 |
| 10 | $5.1 | $51,00 |
| 100 | $4.2 | $420,00 |
| 500 | $3.65 | $1.825,00 |
| 1.000 | $3.3 | $3.300,00 |
PIC18LF67K40-I/MR Visão geral
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.
Alternativas drop-in para PIC18LF67K40-I/MR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC18LF67K40-I/MR (mesmo formato e footprint) — diferindo em Package, ADC, Core Architecture, Operating Temperature, Program Memory (Flash).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F67K40-I/MR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18F65K80-I/MR
✅ Drop-In✓ Em estoque
$3.12 / unidade
Ver ficha técnica →PIC32MX340F512H-80I/MR
✅ Drop-In✓ Em estoque
$6.55 / unidade
Ver ficha técnica →PIC18LF67K40-I/MR Classificações máximas e características elétricas
| 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 |
| Faixa de temperatura de operação | -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 |
| Encapsulamento | 64-pin VQFN-EP (MR) 9x9 mm |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do PIC18LF67K40-I/MR
| Pino 1 | RA0 — Digital I/O / analog input |
| Pino 2 | RA1 — Digital I/O / analog input |
| Pino 3 | RA2 — Digital I/O / analog input |
| Pino 4 | RA3 — Digital I/O / analog input |
| Pino 5 | RA4 — Digital I/O / analog input |
| Pino 6 | RA5 — Digital I/O / analog input |
| Pino 7 | RA6 — Digital I/O / analog input |
| Pino 8 | RA7 — Digital I/O / analog input |
| Pino 9 | VSS — Ground reference |
| Pino 10 | RA8 — Digital I/O / analog input |
| Pino 11 | RA9 — Digital I/O / analog input |
| Pino 12 | RA10 — Digital I/O / analog input |
| Pino 13 | RA11 — Digital I/O / analog input |
| Pino 14 | RA12 — Digital I/O / analog input |
| Pino 15 | RA13 — Digital I/O / analog input |
| Pino 16 | RA14 — Digital I/O / analog input |
| Pino 17 | RA15 — Digital I/O / analog input |
| Pino 18 | VSS — Ground reference |
| Pino 19 | VDD — Positive supply (1.8-3.6 V) |
| Pino 20 | RB0 — Digital I/O / interrupt-on-change |
| Pino 21 | RB1 — Digital I/O / interrupt-on-change |
| Pino 22 | RB2 — Digital I/O / interrupt-on-change |
| Pino 23 | RB3 — Digital I/O / interrupt-on-change |
| Pino 24 | RB4 — Digital I/O / interrupt-on-change |
| Pino 25 | RB5 — Digital I/O / interrupt-on-change |
| Pino 26 | RB6 — Digital I/O / ICSPCLK |
| Pino 27 | RB7 — Digital I/O / ICSPDAT |
| Pino 28 | VSS — Ground reference |
| Pino 29 | VDD — Positive supply (1.8-3.6 V) |
| Pino 30 | RC0 — Digital I/O |
| Pino 31 | RC1 — Digital I/O |
| Pino 32 | RC2 — Digital I/O |
| Pino 33 | RC3 — Digital I/O |
| Pino 34 | RC4 — Digital I/O |
| Pino 35 | RC5 — Digital I/O |
| Pino 36 | RC6 — Digital I/O / TX |
| Pino 37 | RC7 — Digital I/O / RX |
| Pino 38 | VSS — Ground reference |
| Pino 39 | VDD — Positive supply (1.8-3.6 V) |
| Pino 40 | RD0 — Digital I/O |
| Pino 41 | RD1 — Digital I/O |
| Pino 42 | RD2 — Digital I/O |
| Pino 43 | RD3 — Digital I/O |
| Pino 44 | RD4 — Digital I/O |
| Pino 45 | RD5 — Digital I/O |
| Pino 46 | RD6 — Digital I/O |
| Pino 47 | RD7 — Digital I/O |
| Pino 48 | VSS — Ground reference |
| Pino 49 | RE0 — Digital I/O |
| Pino 50 | RE1 — Digital I/O |
| Pino 51 | RE2 — Digital I/O |
| Pino 52 | RE3 — Digital I/O |
| Pino 53 | MCLR — Master clear / reset (active low) |
| Pino 54 | RF0 — Digital I/O |
| Pino 55 | RF1 — Digital I/O |
| Pino 56 | RF2 — Digital I/O |
| Pino 57 | RF3 — Digital I/O |
| Pino 58 | RF4 — Digital I/O |
| Pino 59 | RF5 — Digital I/O |
| Pino 60 | RF6 — Digital I/O |
| Pino 61 | RF7 — Digital I/O |
| Pino 62 | VSS — Ground reference |
| Pino 63 | VDD — Positive supply (1.8-3.6 V) |
| Pino 64 | OSC1 — External oscillator input / CLKIN |
Aplicações típicas
PIC18LF67K40-I/MR é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF67K40-I/MR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Lowest voltage XLP variant with 128 KB Flash in 64-pin VQFN-EP (vs PIC18F67K40-I/MR)
- Modern K40 peripheral set with 32-bit CRC/SCAN (vs PIC18F65K80-I/MR)
- 8-bit PIC18 architecture with 128 KB Flash (vs PIC32MX340F512H-80I/MR)
Notas de projeto
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.
Informações de conformidade
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.
