PIC18LF47K40-I/P - 8-Bit 64MHz 128KB Flash MCU | Microchip
N.º de pieza: PIC18LF47K40-I/P ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.62 | $3,62 |
| 10 | $3.13 | $31,30 |
| 100 | $2.71 | $271,00 |
| 500 | $2.42 | $1.210,00 |
| 1.000 | $2.23 | $2.230,00 |
PIC18LF47K40-I/P Descripción general
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and a rich set of on-chip peripherals such as timers, ADC/DAC, communication interfaces, and I/O ports. The PIC18 family occupies the upper tier of Microchip's 8-bit portfolio, balancing deterministic Harvard architecture, an industry-standard instruction set, and low cost with abundant code space. The 'LF' suffix denotes the low-voltage (1.8V-3.6V) variant optimized for battery-powered or energy-harvesting systems where XLP technology enables nanoWatt sleep currents below 50 nA.
Key features of this device include an integrated 10-bit ADC with computation, a 5-bit DAC, multiple PWM/CCP/CWG channels for motor and lighting control, a windowed watchdog timer (WWDT), hardware CRC/SCAN, a Zero-Cross Detect (ZCD) module, and Core Independent Peripherals that offload tasks from the CPU. Communication is supported by EUSART, MSSP (I2C/SPI), and multiple timers. The 128 KB Flash supports high-endurance 10K/100K write/erase cycles typical of XLP Flash. Hardware math accelerator and 32-bit accumulator instructions accelerate arithmetic-intensive routines.
Architecturally, the PIC18LF47K40 implements a RISC Harvard core with a 16-bit instruction word, an 8-level hardware stack, and interrupt-driven control with hardware context save/restore. Core Independent Peripherals (CIPs) such as the CWG, NCO, and configurable logic cells allow complex timing, signal generation, and inter-peripheral triggering without CPU intervention, reducing firmware complexity and active-mode power. The XLP nanoWatt sleep modes (Sleep, Deep Sleep, and Retention) deliver standby currents that enable multi-year battery life in sensor-edge applications.
Typical applications include low-power IoT sensor nodes, battery-backed industrial control, HVAC and home appliance control, motor control (BLDC, fan, pump), LED lighting drivers, consumer electronics with capacitive touch, automotive body and accessory modules, and educational or hobby platforms (PIC-based development). The 40-pin PDIP through-hole form factor is particularly suited to breadboard prototyping, legacy designs, and hand-soldered production.
When designing with the PIC18LF47K40-I/P, observe the 1.8V-3.6V supply window - the 5V-tolerant I/O feature applies only to the higher-voltage PIC18F47K40 variant. Use MPLAB X IDE with the XC8 compiler for firmware development, and Microchip's Code Configurator (MCC) plug-in to generate peripheral initialization code and shorten prototype timelines. A 100 nF decoupling capacitor should be placed within 5 mm of each VDD/VSS pin pair.
This page synthesizes distributor pricing, drop-in same-package alternatives, and application-specific design notes not found in the manufacturer datasheet, with values cross-referenced against Microchip's PIC18(L)F27/47K40 family datasheet (DS40001844E) and live distributor listings as of 2026-09-29.
Alternativas directas para PIC18LF47K40-I/P — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC18LF47K40-I/P (mismo factor de forma y huella) — difiere en ADC, Package, Communication, Mounting Type, Core.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC18F47K40-I/P
✅ Sustitución directa✓ En stock
$2.88 / unidad
Ver hoja de datos →PIC18LF47K40-E/PT
✅ Sustitución directa✓ En stock
$2.43 / unidad
Ver hoja de datos →PIC18LF45K40-I/PT
✅ Sustitución directa✓ En stock
$1.62 / unidad
Ver hoja de datos →PIC18LF46K40-I/PT
✅ Sustitución directa✓ En stock
$2.1 / unidad
Ver hoja de datos →PIC18LF47K42-I/P
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC18LF4620-I/PT
✅ Sustitución directa✓ En stock
$4.45 / unidad
Ver hoja de datos →PIC18LF452-I/P
✅ Sustitución directa✓ En stock
$7.8 / unidad
Ver hoja de datos →PIC18LF47K40-I/P Valores máximos y características eléctricas
| Core | PIC18 8-bit RISC (Harvard) |
| Family | PIC® XLP™ 18K |
| Instruction Set | PIC18 (16-bit instruction word) |
| Maximum CPU Clock | 64 MHz |
| MIPS (DMIPS) | 16 MIPS @ 64 MHz / 4 MIPS @ 16 MHz |
| Program Flash Memory | 128 KB (64K x 16) |
| SRAM | 4 KB |
| EEPROM | 256 bytes |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| Temperatura de funcionamiento | -40C to +85C (Industrial) |
| Encapsulado | 40-pin PDIP (0.600 inch, 15.24 mm) |
| I/O Pins | 36 (approx., 40-pin device) |
| ADC | 10-bit ADC2 (with computation) |
| DAC | 5-bit DAC |
| Timers | Multiple 8/16-bit timers |
| Communication | EUSART, MSSP (I2C/SPI) |
| Core Independent Peripherals | CWG, NCO, WWDT, ZCD, CRC/SCAN, CCP, PWM |
| Low-Power Modes | XLP nanoWatt Sleep / Deep Sleep / Retention |
| Tipo de montaje | Through-Hole (THT) |
| Estado RoHS | Compliant |
Configuración de pines de PIC18LF47K40-I/P
| Pin 1 | RA3/AN3/VREF+/SEG24 — PORTA bit 3 / Analog input 3 / positive voltage reference / LCD SEG24 |
| Pin 2 | RA2/AN2/VREF-/SEG25 — PORTA bit 2 / Analog input 2 / negative voltage reference / LCD SEG25 |
| Pin 3 | RA1/AN1/SEG26 — PORTA bit 1 / Analog input 1 / LCD SEG26 |
| Pin 4 | RA0/AN0/SEG27 — PORTA bit 0 / Analog input 0 / LCD SEG27 |
| Pin 5 | RA5/AN4/SEG20 — PORTA bit 5 / Analog input 4 / LCD SEG20 |
| Pin 6 | RA4/AN5/T0KI/SEG21 — PORTA bit 4 / Analog input 5 / Timer0 clock input / LCD SEG21 |
| Pin 7 | RA7/RA6/OSC2/CLKOUT — PORTA bit 7 / OSC2 / Clock output |
| Pin 8 | RA6/OSC1/CLKIN — PORTA bit 6 / OSC1 / Clock input |
| Pin 9 | RE3/MCLR/VPP — PORTE bit 3 / Master Clear reset / programming voltage input |
| Pin 10 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 11 | VSS — Ground reference |
| Pin 12 | RB7/KBI3/SEG9 — PORTB bit 7 / Keyboard interrupt / LCD SEG9 |
| Pin 13 | RB6/KBI2/SEG8 — PORTB bit 6 / Keyboard interrupt / LCD SEG8 |
| Pin 14 | RB5/KBI1/SEG7 — PORTB bit 5 / Keyboard interrupt / LCD SEG7 |
| Pin 15 | RB4/KBI0/SEG6 — PORTB bit 4 / Keyboard interrupt / LCD SEG6 |
| Pin 16 | RB3/AN9/CTMUI/SEG5 — PORTB bit 3 / Analog input 9 / CTMU current / LCD SEG5 |
| Pin 17 | RB2/AN8/SEG4 — PORTB bit 2 / Analog input 8 / LCD SEG4 |
| Pin 18 | RB1/AN10/SEG3/C1OUT — PORTB bit 1 / Analog input 10 / LCD SEG3 / Comparator 1 output |
| Pin 19 | RB0/AN12/SEG0/ZCD — PORTB bit 0 / Analog input 12 / LCD SEG0 / ZCD output |
| Pin 20 | VDDIO2 — I/O supply for PORTB PORT (may be tied to VDD) |
| Pin 21 | RC7/RX/DT/AN19/SEG18 — PORTC bit 7 / EUSART RX / DT / Analog 19 / LCD SEG18 |
| Pin 22 | RC6/TX/CK/AN18/SEG17 — PORTC bit 6 / EUSART TX / CK / Analog 18 / LCD SEG17 |
| Pin 23 | RC5/SDO/AN17/SEG16 — PORTC bit 5 / SPI SDO / Analog 17 / LCD SEG16 |
| Pin 24 | RC4/SDI/SDA/AN16/SEG15 — PORTC bit 4 / SPI SDI / I2C SDA / Analog 16 / LCD SEG15 |
| Pin 25 | RC3/SCK/SCL/AN15/SEG14 — PORTC bit 3 / SPI SCK / I2C SCL / Analog 15 / LCD SEG14 |
| Pin 26 | RC2/AN14/CCP1/SEG13 — PORTC bit 2 / Analog 14 / CCP1 / LCD SEG13 |
| Pin 27 | RC1/AN13/CCP2/SEG11 — PORTC bit 1 / Analog 13 / CCP2 / LCD SEG11 |
| Pin 28 | RC0/AN16/SOSCO — PORTC bit 0 / SOSC secondary clock output |
| Pin 29 | RE0/AN5/PWM2 — PORTE bit 0 / Analog input / PWM2 output |
| Pin 30 | RE1/AN6/PWM3 — PORTE bit 1 / Analog input / PWM3 output |
| Pin 31 | RE2/AN7/PWM4 — PORTE bit 2 / Analog input / PWM4 output |
| Pin 32 | VDD — Positive supply voltage (1.8V to 3.6V) |
| Pin 33 | VSS — Ground reference |
| Pin 34 | RD7/AN21/SEG23 — PORTD bit 7 / Analog input 21 / LCD SEG23 |
| Pin 35 | RD6/AN20/SEG22 — PORTD bit 6 / Analog input 20 / LCD SEG22 |
| Pin 36 | RD5/AN27/SEG29 — PORTD bit 5 / Analog input 27 / LCD SEG29 |
| Pin 37 | RD4/AN26/SEG28 — PORTD bit 4 / Analog input 26 / LCD SEG28 |
| Pin 38 | RD3/AN25/CCP3/SEG30 — PORTD bit 3 / Analog input 25 / CCP3 / LCD SEG30 |
| Pin 39 | RD2/AN24/CCP4/SEG31 — PORTD bit 2 / Analog input 24 / CCP4 / LCD SEG31 |
| Pin 40 | RD1/AN23/C1IN+/SEG32 — PORTD bit 1 / Analog input 23 / Comparator 1 positive / LCD SEG32 |
Aplicaciones típicas
PIC18LF47K40-I/P es adecuado para 6 aplicacións: Battery-Powered IoT Sensor Nodes, Industrial Control & Automation, BLDC & DC Motor Control, HVAC & Home Appliance Control, LED Lighting Drivers & Dimming, Consumer Electronics & Capacitive Touch HMI.
Battery-Powered IoT Sensor Nodes
The PIC18LF47K40-I/P's XLP nanoWatt technology and 1.8V-3.6V operation make it ideal for wireless sensor nodes running from 2x AA alkaline or LiSOCl2 batteries. Sleep currents below 50 nA (Deep Sleep) combined with on-chip peripherals (10-bit ADC2 with auto-wake threshold, windowed WWDT, RTCC) enable multi-year battery life in duty-cycled sensor applications. The 128 KB Flash comfortably holds Zigbee/LoRa/Sigfox protocol stacks plus application logic, while 4 KB SRAM handles packet buffers. Place 100 nF decoupling within 5 mm of each VDD/VSS pair; route the 32.768 kHz crystal close to the SOSC pins for RTC accuracy.
Recomendado
Industrial Control & Automation
The PIC18LF47K40-I/P suits industrial control panels, sensor interfaces, and PLC expansion modules. Core Independent Peripherals (CWG for complementary PWM, ZCD for zero-crossing triac control, NCO for precise frequency generation) handle timing-critical control loops without CPU intervention, freeing the core for communication and logic. The 40-pin PDIP package eases hand-soldering for prototype and small-batch production, while 1.8V-3.6V operation simplifies battery-backed RTC scenarios. Industrial -40C to +85C temperature rating is sufficient for most factory-floor applications; for extended temperature choose PIC18LF47K40-E/P (-40C to +125C).
Recomendado
BLDC & DC Motor Control
The PIC18LF47K40-I/P drives small BLDC, brushless DC, and stepper motors via its integrated CWG (Complementary Waveform Generator), CCP/PWM modules, and QEI for position feedback. The 10-bit ADC with computation samples back-EMF or current-sense channels and triggers hardware actions without CPU wake-ups, while the ZCD module detects AC mains zero-crossing for synchronous rectification or phase-angle dimming. Core Independent Peripherals reduce the real-time burden on the 16 MIPS core, allowing motor control firmware plus user-interface logic in a single chip. Pair with a 3-phase gate driver IC for sub-200W BLDC applications.
Recomendado
HVAC & Home Appliance Control
The PIC18LF47K40-I/P powers HVAC controllers, smart thermostats, washing-machine control boards, dishwasher interfaces, and refrigerator main boards. The 40-pin PDIP package with 36 I/O easily drives multiplexed LED or LCD displays, capacitive-touch buttons (via mTouch CVD peripheral), and keypads. The 5-bit DAC and PWM channels provide analog-controlled triac/relay drivers for heating elements and compressor speed. ZCD detects AC zero-crossing for synchronous switching, reducing EMI by up to 20 dB compared to phase-delay control. NanoWatt Sleep preserves battery-backed clock during brownouts and standby.
Recomendado
LED Lighting Drivers & Dimming
The PIC18LF47K40-I/P enables commercial-grade LED lighting with constant-current drive, logarithmic dimming curves, color-mixing control, and AC-line phase-cut dimming. The CWG peripheral generates multi-channel PWM with dead-band control for high-power LED driver stages, while ZCD synchronizes to AC mains for TRIAC-compatible dimming. Hardware CRC and SCAN routines detect LED-string open/short faults in real-time without CPU overhead. Multiple CCP/PWM channels support RGBW color-mixing with up to 16-bit resolution for high-end architectural and stage lighting. Industrial temperature range supports outdoor luminaire enclosures.
Recomendado
Consumer Electronics & Capacitive Touch HMI
The PIC18LF47K40-I/P fits consumer devices with capacitive-touch HMIs such as coffee machines, induction cookers, kitchen scales, and personal-care products. mTouch CVD peripherals implement up to 36 touch channels via charge-time measurement, eliminating the need for external touch controllers. The 128 KB Flash holds HMI logic plus wireless protocol stacks for BLE/WiFi coprocessor-based products. Core Independent Peripherals drive LED-illuminated capacitive buttons with adaptive brightness and proximity sensing. NanoWatt Sleep keeps the appliance energy-efficient (<0.5W standby) to comply with global standby-power standards (Energy Star, EU ErP).
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC18LF47K40-I/P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC18F47K40-I/P | PIC18LF47K40-E/P | PIC18LF45K40-I/P | PIC18LF46K40-I/P | PIC18LF47K42-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP (0.600 in, 15.24 mm) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) | 40-pin PDIP (same) |
| Program Flash | 128 KB | 128 KB | 128 KB | 32 KB | 64 KB | 128 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 4 KB | 4 KB |
| Operating Voltage | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| ADC Resolution | 10-bit (ADC2) | 10-bit | 10-bit | 10-bit | 10-bit | 12-bit |
| Core Independent Peripherals | CWG, NCO, WWDT, ZCD, CRC/SCAN, CCP, PWM | Same | Same | Same | Same | Same plus 12-bit ADC |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Diferenciadores clave
- Lowest voltage variant of the K40 family (frente a PIC18F47K40-I/P)
- Largest Flash in 40-pin K40 family (frente a PIC18LF46K40-I/P (64 KB) and PIC18LF45K40-I/P (32 KB))
- Advanced Core Independent Peripherals (CIPs) (frente a PIC18LF46K22-I/P (K22 family))
Notas de diseño
The PIC18LF47K40-I/P operates from 1.8V to 3.6V. Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pin pair (pins 10/11, 20/ground, plus adjacent pairs) and a bulk 4.7 uF to 10 uF tantalum or ceramic at the supply input. Use separate analog and digital ground planes that meet at a single point near the MCU to minimize noise coupling into the ADC. Battery-powered designs should use a low-leakage LDO such as MCP1703 or direct LiSOCl2 cells to take advantage of XLP nanoWatt sleep modes below 50 nA typical.
The 40-pin PDIP package suits breadboard and hand-soldered designs. Keep high-speed traces (SCK, SDI/SDO, RC6/TX) short and impedance-controlled; route crystal traces (RA6/OSC1, RA7/OSC2) symmetrically and guard with a ground ring to reduce EMI. For mixed-signal designs, place analog inputs on PORTA/PORTB and digital signals on PORTC/PORTD where possible. Keep the 32.768 kHz SOSC crystal close to SOSCO/SOSCI pins to maintain RTC accuracy.
Do not apply input voltages above VDD + 0.3 V to any I/O pin (this is NOT a 5V-tolerant MCU - use PIC18F47K40 if 5V-tolerant I/O is required). Configure unused pins as outputs low or inputs with internal pull-ups to prevent floating-input current spikes. Always run MCLR with a proper 10 kohm pull-up to VDD to avoid spurious resets. When using the ADC, allow at least 1 us acquisition time and use the ADC's hardware averaging for noisy sensors.
Información de cumplimiento
RoHS compliant per Microchip product page and DigiKey listing. Not AEC-Q100 qualified (industrial -40C to +85C only); automotive applications should evaluate PIC18F47K40 automotive variants. Lead-free (Pb-free) per Microchip product family compliance.
