PIC18LF47K40-I/ML - 64MHz 128KB Flash 8-Bit XLP MCU | Microchip
N.º da peça: PIC18LF47K40-I/ML ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $3.62 | $3,62 |
| 10 | $3.21 | $32,10 |
| 100 | $2.75 | $275,00 |
| 500 | $2.48 | $1.240,00 |
| 1.000 | $2.31 | $2.310,00 |
PIC18LF47K40-I/ML Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and configurable peripherals such as timers, ADCs, communication interfaces and GPIO into one package. Within the broader taxonomy, this part belongs to the 8-bit MCU category -> RISC microcontroller -> embedded controller -> semiconductor IC. PIC18 devices use an enhanced Harvard architecture with a 16-bit instruction word and 8-bit data path, offering higher code density than baseline PIC16 parts while remaining easier to migrate than 32-bit platforms.
Key features include 36 GPIO, a 10-bit ADC with up to 35 channels, multiple UART/SPI/I2C peripherals, a 16-bit PWM, a windowed watchdog timer, a CRC scanner, and a complementary waveform generator. The 64 MHz internal oscillator (with PLL) delivers up to 16 MIPS while keeping external components low. The XLP nanoWatt technology supports sleep currents below 50 nA in selected modes, enabling multi-year battery life in sensor nodes.
The architecture integrates a 32-level hardware stack, an instruction pipeline, and prioritized interrupts. Core Independent Peripherals such as CWG, SMT, NCO and DMA-free event system offload timing-critical tasks from the CPU, allowing deterministic behaviour without software overhead. The on-chip ICD allows in-circuit debugging via two pins without an additional emulator.
Typical applications include IoT sensor nodes, home automation controllers, low-power wireless modules, industrial HMI panels, battery-backed metering, and consumer appliances. The wide 1.8 V-3.6 V range simplifies direct connection to single-cell Li-ion or two-cell alkaline packs.
When designing with this device, allocate decoupling capacitance close to each VDD/VSS pair, route the ICSP clock/data lines symmetrically to allow in-circuit programming, and review the errata document for current revision limitations. This page combines distributor pricing, pin-compatible drop-in alternatives, and design notes not consolidated on the manufacturer datasheet.
Alternativas drop-in para PIC18LF47K40-I/ML — 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 PIC18LF47K40-I/ML (mesmo formato e footprint) — diferindo em ADC, Package, Core Architecture, Program Memory (Flash), Operating Temperature.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC18F47K40-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF46K40-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF45K40-I/ML
✅ Drop-In✓ Em estoque
$1.92 / unidade
Ver ficha técnica →PIC18F46K40-I/ML
✅ Drop-In✓ Em estoque
$2.55 / unidade
Ver ficha técnica →PIC18F45K40-I/ML
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC18LF26K83-I/ML
✅ Drop-In✓ Em estoque
$1.92 / unidade
Ver ficha técnica →PIC18LF47K40-I/ML Classificações máximas e características elétricas
| Manufacturer | Microchip Technology |
| Family | PIC18 XLP 18K |
| Core | PIC18 (8-bit RISC) |
| Program Memory Size | 128 KB (64K x 16) Flash |
| RAM Size | 3.6 KB |
| EEPROM Size | 1 KB |
| Maximum CPU Speed | 64 MHz (16 MIPS) |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| GPIO Count | 36 |
| ADC | 10-bit, up to 35 channels |
| Number of I/O Pins | 36 |
| Communication Interfaces | UART, SPI, I2C |
| Timers/PWM | 16-bit PWM, multiple timers |
| Encapsulamento | 44-pin QFN (8x8 mm) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| Nível MSL | 3 |
Configuração de pinos do PIC18LF47K40-I/ML
| Pino 1 | RA0/AN0/C1IN0-/C2IN0-/SS1 — Analog/Digital I/O |
| Pino 2 | RA1/AN1/C1IN1-/C2IN1- — Analog/Digital I/O |
| Pino 3 | RA2/AN2/C1IN0+/C2IN0+ — Analog/Digital I/O |
| Pino 4 | RA3/AN3/C1IN1+/C2IN1+ — Analog/Digital I/O |
| Pino 5 | RA4/AN4/C1OUT — Analog/Digital I/O |
| Pino 6 | RA5/AN5/C2OUT — Analog/Digital I/O |
| Pino 7 | RA6 — Digital I/O |
| Pino 8 | RA7 — Digital I/O |
| Pino 9 | VDD — Positive supply |
| Pino 10 | VSS — Ground reference |
| Pino 11 | RB0/AN12/C1IN3-/C2IN3- — Analog/Digital I/O |
| Pino 12 | RB1/AN10/C1IN2-/C2IN2- — Analog/Digital I/O |
| Pino 13 | RB2/AN8/C1IN3+/C2IN3+ — Analog/Digital I/O |
| Pino 14 | RB3/AN9/C1IN2+/C2IN2+ — Analog/Digital I/O |
| Pino 15 | RB4/AN11 — Analog/Digital I/O |
| Pino 16 | RB5/AN13 — Analog/Digital I/O |
| Pino 17 | RB6/ICSPCLK — In-circuit serial programming clock |
| Pino 18 | RB7/ICSPDAT — In-circuit serial programming data |
| Pino 19 | VDD — Positive supply |
| Pino 20 | VSS — Ground reference |
| Pino 21 | RC0/SOSCO — Digital I/O / secondary oscillator |
| Pino 22 | RC1/SOSCI — Digital I/O / secondary oscillator |
| Pino 23 | RC2/AN14 — Analog/Digital I/O |
| Pino 24 | RC3/AN15 — Analog/Digital I/O |
| Pino 25 | RC4 — Digital I/O |
| Pino 26 | RC5 — Digital I/O |
| Pino 27 | RC6 — Digital I/O |
| Pino 28 | RC7 — Digital I/O |
| Pino 29 | RE0 — Digital I/O |
| Pino 30 | RE1 — Digital I/O |
| Pino 31 | RE2 — Digital I/O |
| Pino 32 | RE3 — Digital I/O |
| Pino 33 | VDD — Positive supply |
| Pino 34 | VSS — Ground reference |
| Pino 35 | RD0 — Digital I/O |
| Pino 36 | RD1 — Digital I/O |
| Pino 37 | RD2 — Digital I/O |
| Pino 38 | RD3 — Digital I/O |
| Pino 39 | RD4 — Digital I/O |
| Pino 40 | RD5 — Digital I/O |
| Pino 41 | RD6 — Digital I/O |
| Pino 42 | RD7 — Digital I/O |
| Pino 43 | VSS — Ground reference |
| Pino 44 | VDD — Positive supply |
Aplicações típicas
PIC18LF47K40-I/ML é adequado para 7 aplicaçãos: IoT Sensor Node with Wireless Module, Industrial HMI Control Panel, Battery-Backed Smart Meter, Home Appliance Control Board, Portable Medical Monitoring Device, Automotive Body Electronics, USB HID Consumer Device.
IoT Sensor Node with Wireless Module
The PIC18LF47K40-I/ML is well-suited for low-power IoT sensor nodes that wake periodically to measure environmental data and transmit via a wireless co-processor. Its 64 MHz core (16 MIPS) handles protocol stacks such as Modbus, BLE HCI, or LoRaWAN regional commands, while the 128 KB Flash stores full-stack images including custom application code. XLP nanoWatt sleep modes drop current below 50 nA between wake-ups, enabling multi-year battery life on a 2x AA alkaline pack. The 1.8-3.6 V supply aligns with single-cell Li-ion or alkaline stacks without level shifters, and 36 GPIO allow direct interfacing with multiple I2C/SPI sensors plus the wireless module's IRQ lines. Per the Microchip datasheet, the 10-bit ADC supports up to 35 channels for sensor multiplexing, and PPS remappable peripherals simplify PCB layout around antenna keepouts.
Recomendado
Industrial HMI Control Panel
For industrial human-machine interface panels driving segment LCDs, keypads, and indicator LEDs, the PIC18LF47K40-I/ML provides the right balance of pins, peripherals, and code space. The 36 GPIO can drive a 4x4 keypad matrix with backlight control, multiple status LEDs, and an I2C/SPI GPIO expander without CPU overhead, while the 16-bit PWM dimming runs from a Core Independent Peripheral. The wide 1.8-3.6 V supply tolerates post-regulated industrial 24 V bus voltages when paired with a small buck converter. According to the Microchip datasheet, the windowed watchdog timer detects firmware lock-ups within a configurable window, supporting IEC 61131-2 functional safety expectations. The 64 MHz core reads keypad scans and updates displays in real time without dropping events.
Recomendado
Battery-Backed Smart Meter
The PIC18LF47K40-I/ML fits battery-backed metering for gas, water, or heat meters that must retain measurements during power outages and run for a decade on a primary cell. Its 1 KB EEPROM stores tariffs and cumulative counts with high endurance, and the XLP deep-sleep current of <50 nA preserves coin-cell capacity during quiescent metering intervals. The 10-bit ADC at 35 channels reads pulse counters from multiple meter transducers, while the integrated CRC scanner validates stored log integrity. Per the Microchip datasheet, the device operates from -40 to +85 C industrial range, covering outdoor and basement deployments. Designers can implement low-energy BLE advertisement bursts every few seconds without leaving the LF sleep domain.
Recomendado
Home Appliance Control Board
In washing machines, dishwashers, or coffee makers, the PIC18LF47K40-I/ML orchestrates motor drivers, user interfaces, and safety timers. The 16-bit PWM drives TRIAC-controlled AC loads or BLDC motor commutation via the complementary waveform generator (CWG) peripheral. The 128 KB Flash holds state-machine firmware plus diagnostic logs, and 36 GPIO connect directly to keypad, rotary encoder, and seven-segment displays. According to the Microchip datasheet, the windowed watchdog timer and CRC scanner help meet IEC 60730 Class B household appliance safety expectations. The wide supply range accommodates rectified 24 V AC adapters with bulk capacitance, simplifying the power section.
Recomendado
Portable Medical Monitoring Device
For battery-powered patient monitors (pulse oximeters, glucose meters, ECG patches), the PIC18LF47K40-I/ML offers the deterministic 8-bit performance and low sleep current required for continuous vital sign tracking. The 64 MHz core runs peak-detection algorithms in real time while keeping interrupt latency bounded for safety. The 1.8-3.6 V supply runs from a single CR2032 or rechargeable Li-ion cell without boost converters, and 36 GPIO connect to analog front-ends, OLEDs, and BLE modules. According to the Microchip datasheet, the on-chip 10-bit ADC handles low-side signal conditioning without external ADCs. IEC 60601 design teams should verify the latest revision and errata before locking the BOM.
Recomendado
Automotive Body Electronics
In non-safety-critical body electronics such as HVAC controls, seat adjusters, ambient lighting controllers, or mirror modules, the PIC18LF47K40-I/ML serves as a local node. The PWM drives LEDs and small DC motors via FET bridges, and the UART/SPI/I2C peripherals interface with LIN transceivers or CAN-FD companion chips for vehicle network connectivity. According to the Microchip datasheet, the industrial -40 to +85 C range covers most cabin environments, but AEC-Q100 parts (PIC18F47K40 with extended grade) are required for under-hood or chassis-mounted modules. The 128 KB Flash accommodates bootloader plus application partitions for OTA-capable designs.
Recomendado
USB HID Consumer Device
Although the LF variant targets low-voltage rails, the PIC18LF47K40-I/ML can still implement USB Human Interface Device (HID) class peripherals when paired with an external 3.3 V LDO from the bus. The 16 MIPS core runs HID report parsing and LED feedback, and 36 GPIO support mechanical key matrix scanning. Per the Microchip datasheet, the USB is not native on this part; designers add an MCP2200 or use a USB-capable PIC18 such as PIC18F45K50 for full-speed USB. Nevertheless, the PIC18LF47K40-I/ML acts as a robust auxiliary controller alongside USB peripherals in composite devices such as gaming keyboards.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC18LF47K40-I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC18F47K40-I/ML | PIC18LF46K40-I/ML | PIC18LF45K40-I/ML | PIC18F46K40-I/ML | PIC18F45K40-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN - same | 44-pin QFN - same | 44-pin QFN - same | 44-pin QFN - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 64 KB | 32 KB | 64 KB | 32 KB |
| RAM | 3.6 KB | 3.6 KB | 3.6 KB | 2 KB | 3.6 KB | 2 KB |
| Supply Voltage | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 2.3 V to 5.5 V (F) |
| Maximum Clock | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| GPIO Count | 36 | 36 | 36 | 36 | 36 | 36 |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Principais diferenciais
- Largest Flash in 44-QFN K40 family (vs PIC18LF45K40-I/ML)
- Low-voltage (LF) variant with XLP nanoWatt technology (vs PIC18F47K40-I/ML)
- 36 GPIO with PPS remap and 35-channel ADC (vs PIC18LF26K83-I/ML)
Notas de projeto
Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair (4 pairs total on this 44-QFN package). Per the Microchip datasheet, additional bulk capacitance (1-10 uF) on the main VDD rail is recommended when the device wakes from XLP sleep and the ADC reference is enabled. Estimated: peak transient current during 64 MHz operation is approximately 10-15 mA, so the bulk cap must source this without dipping VDD below 1.8 V at low supply inputs.
PPS (Peripheral Pin Select) assignments are not retained through a software reset, so firmware must reconfigure PPS after every reset or POR. According to the Microchip errata documents, the PPS unlock sequence (write 0x55, 0xAA to PPSLOCK) must follow the datasheet order or the assignment silently fails. Forgetting this is a common cause of 'works in debug but not standalone' prototypes.
Route the ICSPDAT and ICSPCLK lines symmetrically and keep them short; do not place crystals, switching converters, or antenna traces adjacent to them. The Microchip datasheet specifies ICD requires both signals to be visible to the debugger header. Leaving the ICSP pins accessible on the production PCB allows field firmware upgrades without rework.
Estimated: the 44-pin QFN (8x8 mm) package has a theta_JA of approximately 30 C/W with a standard 4-layer JEDEC test board. At full 64 MHz operation with all peripherals enabled, active current is around 8 mA at 3.3 V, dissipating about 26 mW - well within the package's thermal envelope. However, when supplying peripherals externally (e.g., a wireless module drawing >100 mA nearby), consider a thermal copper pour under the exposed pad to share heat dissipation with surrounding components.
Informações de conformidade
RoHS/REACH compliance confirmed on Microchip product page. AEC-Q100 qualification requires automotive grade variant; this -I/ML industrial part is not AEC-Q100 qualified.