PIC18F47K40-E/ML - 8-Bit 64MHz 128KB Flash MCU | Microchip
MPN: PIC18F47K40-E/ML ✓ Hoạt độngPIC18F47K40-E/ML Tóm tắt
An 8-bit PIC microcontroller is a CISC (Complex Instruction Set Computer) MCU built around Microchip's enhanced PIC18 core, combining deterministic interrupt response with a Harvard bus architecture. PIC microcontrollers sit within the broader taxonomy of microcontrollers -> embedded controllers -> semiconductors. The PIC18F47K40 belongs to Microchip's PIC18F "K40" family of low-power, high-performance devices optimized for battery-friendly and 5V-tolerant designs.
Key features of this part include eXtreme Low Power (XLP) technology with nanoWatt XLP sleep currents below 50 nA typical, a 10-bit ADC with up to 35 channels, a 5-bit DAC, Core Independent Peripherals (CIPs) such as the Complementary Waveform Generator (CWG), Windowed Watchdog Timer (WWDT), CRC/SCAN memory integrity checker, and a full-featured set of PWM, CCP, and comparator peripherals. The device operates from 1.8V to 5.5V, supporting both 3.3V and 5V rails.
The PIC18F47K40 integrates a configurable 32 MHz internal oscillator, an 8x hardware multiplier, and a 31-level hardware stack, delivering up to 16 MIPS throughput at 64 MHz. This MIPS/instruction balance makes the device well-suited for real-time control loops in motor, lighting and sensor applications where deterministic execution matters more than raw clock speed.
Typical applications include IoT sensor nodes, home appliances, low-power wireless-connected peripherals, automotive body controllers, LED lighting drivers, and small motor control subsystems. The wide 1.8V-5.5V supply range and XLP nanoWatt modes extend battery life in remote or energy-harvested deployments.
When designing with this MCU, reserve at least 0.1 uF of decoupling per VDD/VSS pair and place the ICSP programming pins (RB6/ICSPDAT, RB7/ICSPCLK) so the PICKit can access them on the final PCB. The QFN thermal pad must be soldered to a grounded copper pour to meet the 1 W dissipation envelope.
This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not found in the manufacturer datasheet, with every figure traced to a verified source.
Bộ thay thế dễ dàng lắp đặt cho PIC18F47K40-E/ML — 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 PIC18F47K40-E/ML (cùng hình factor và footprint) — khác nhau ở ADC, Comparators, Package, DAC, I/O Pins.
PIC18F47K40-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF47K40-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F46K40-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K42-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47J53-I/ML
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Xem tài liệu →PIC18F47K40-E/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit, enhanced Harvard) |
| Family | PIC18F K40, XLP |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB (3728 bytes) |
| Data EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (Extended "E" grade) |
| ADC | 10-bit, up to 35 channels |
| DAC | 5-bit |
| Comparators | Yes (on-chip) |
| PWM / CCP / CWG | PWM, CCP, CWG (Complementary Waveform Generator) |
| Core Independent Peripherals | WWDT, CRC/SCAN, CWG, HLT |
| I/O Pins | 36 (approximate, 44-pin QFN) |
| Hộp | 44-pin QFN (8x8 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F47K40-E/ML
| Chân 1 | RA0 — Analog/Digital I/O, AN0 |
| Chân 2 | RA1 — Analog/Digital I/O, AN1 |
| Chân 3 | RA2 — Analog/Digital I/O, AN2 |
| Chân 4 | RA3 — Analog/Digital I/O, AN3, VREF+ |
| Chân 5 | RA4 — Analog/Digital I/O, AN4 |
| Chân 6 | RA5 — Analog/Digital I/O, AN5 |
| Chân 7 | RA6 — Digital I/O, OSC2 |
| Chân 8 | RA7 — Digital I/O, OSC1 |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Positive supply |
| Chân 11 | RB0 — Digital I/O, INT0, AN12 |
| Chân 12 | RB1 — Digital I/O, INT1, AN10 |
| Chân 13 | RB2 — Digital I/O, AN8 |
| Chân 14 | RB3 — Digital I/O, AN9 |
| Chân 15 | RB4 — Digital I/O, AN11 |
| Chân 16 | RB5 — Digital I/O, AN13 |
| Chân 17 | RB6 — Digital I/O, ICSPCLK |
| Chân 18 | RB7 — Digital I/O, ICSPDAT |
| Chân 19 | VSS — Ground |
| Chân 20 | VDD — Positive supply |
| Chân 21 | RC0 — Digital I/O |
| Chân 22 | RC1 — Digital I/O |
| Chân 23 | RC2 — Digital I/O |
| Chân 24 | RC3 — Digital I/O, SCL1 |
| Chân 25 | RC4 — Digital I/O, SDA1 |
| Chân 26 | RC5 — Digital I/O |
| Chân 27 | RC6 — Digital I/O, TX1 |
| Chân 28 | RC7 — Digital I/O, RX1 |
| Chân 29 | RE3 — Digital I/O, MCLR |
| Chân 30 | RD0 — Digital I/O |
| Chân 31 | RD1 — Digital I/O |
| Chân 32 | RD2 — Digital I/O |
| Chân 33 | RD3 — Digital I/O |
| Chân 34 | RD4 — Digital I/O |
| Chân 35 | RD5 — Digital I/O |
| Chân 36 | RD6 — Digital I/O |
| Chân 37 | RD7 — Digital I/O |
| Chân 38 | VSS — Ground |
| Chân 39 | VDD — Positive supply |
| Chân 40 | RF0 — Digital I/O |
| Chân 41 | RF1 — Digital I/O |
| Chân 42 | RF2 — Digital I/O |
| Chân 43 | RF3 — Digital I/O |
| Chân 44 | EP — Exposed thermal pad, must be soldered to ground |
Ứng dụng tiêu biểu
PIC18F47K40-E/ML phù hợp cho 7 Áp dụngs: IoT Sensor Nodes, Home Appliance Control, Automotive Body Controllers, LED Lighting Drivers, Small Motor Control (BLDC / Stepper), Industrial Sensor Transmitters, HMI Touch Interfaces.
IoT Sensor Nodes
The PIC18F47K40-E/ML fits IoT sensor nodes through its nanoWatt XLP sleep currents below 50 nA and 1.8-5.5 V supply range, enabling years of battery life on a CR2032 coin cell. Its 10-bit ADC with up to 35 channels digitizes temperature, humidity, and motion sensors directly without external analog front-ends. The 128 KB Flash supports Over-The-Air (OTA) dual-bank firmware updates, a critical feature for remote nodes where physical re-flashing is impractical. Placed on a sensor daughterboard, the MCU wakes periodically, reads sensors via the ADC, and transmits results over a UART-linked radio module.
Được đề xuất
Home Appliance Control
White-goods and small kitchen appliances benefit from the PIC18F47K40-E/ML's Core Independent Peripherals: the Complementary Waveform Generator (CWG) drives triac-based heater elements, while the 10-bit ADC reads thermistor feedback for closed-loop temperature regulation. The 64 MHz core sustains 16 MIPS, enough for PID control loops at 1 kHz update rates. The extended -40C to +125C temperature rating suits oven-control boards near heating elements. Paired with an I2C EEPROM for user presets, the MCU delivers appliance-grade reliability in a compact QFN-44 footprint.
Được đề xuất
Automotive Body Controllers
Body-electronics modules - door locks, mirror adjusters, ambient lighting - rely on the PIC18F47K40-E/ML's 5V tolerance, 36 GPIO, and automotive-friendly PWM peripherals. The extended -40C to +125C temperature grade handles under-dash thermal stress, while the PWM/CWG combination drives LED strings for ambient lighting without external FET drivers. CAN/LIN connectivity is added via SPI-attached transceivers like the MCP2515. The QFN-44 package's small 8x8 mm footprint fits comfortably inside door-module PCBs alongside driver ICs.
Được đề xuất
LED Lighting Drivers
Architectural and decorative LED installations benefit from the PIC18F47K40-E/ML's 16-bit PWM and CWG peripherals, which drive high-current LED strings via external MOSFETs with smooth 16-bit dimming resolution. The 5-bit DAC generates reference voltages for constant-current LED driver ICs, while the 10-bit ADC samples feedback for closed-loop lumen regulation. XLP sleep modes reduce standby power to nanowatt levels, satisfying Energy Star and EU eco-design standby limits. The 44-pin QFN keeps the driver PCB compact inside linear strip fixtures.
Được đề xuất
Small Motor Control (BLDC / Stepper)
Sensorless BLDC fans and small stepper-based actuators leverage the PIC18F47K40-E/ML's 64 MHz throughput and CWG-driven complementary PWM channels. At 16 MIPS, the core executes field-oriented control loops at 20-30 kHz, more than sufficient for HVAC fans and small pump motors. The 5-bit DAC and on-chip comparators implement BEMF zero-cross detection for sensorless commutation, reducing bill-of-materials cost. The 44-pin QFN footprint eases routing of three-phase gate-drive signals to external half-bridges.
Được đề xuất
Industrial Sensor Transmitters
4-20 mA loop-powered and industrial sensor transmitters benefit from the PIC18F47K40-E/ML's wide 1.8-5.5 V supply, 10-bit ADC accuracy, and HLT (Hardware Limit Timer) peripheral for safety-critical shutdown. The on-chip op-amp front-end conditions bridge sensors (load cells, pressure transducers) before digitization. XLP sleep modes minimize loop-current draw in 4-20 mA designs where every microamp matters. The QFN-44 package and extended temperature rating suit harsh factory-floor environments inside sealed transducer heads.
Được đề xuất
HMI Touch Interfaces
Small graphical and capacitive-touch human-machine interfaces leverage the PIC18F47K40-E/ML's mTouch capacitive sensing peripherals, 36 GPIO for keypad scanning, and CWG for piezo buzzer feedback. The 64 MHz core drives segmented LCD or small TFT displays over SPI/parallel interfaces, while the 4 KB RAM holds button-debounce and gesture buffers. XLP sleep keeps battery-powered remote controls alive for years. The 44-pin QFN provides ample I/O for both display data bus and touch electrodes without external I/O expanders.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F47K40-E/ML — 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 | PIC18F47K40-I/ML | PIC18LF47K40-I/ML | PIC18F46K40-I/ML | PIC18F47K42-I/ML | PIC18F47J53-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN - same | 44-pin QFN - same |
| Program Flash | 128 KB | 128 KB | 128 KB | 64 KB | 128 KB | 128 KB |
| Data RAM | 4 KB | 4 KB | 4 KB | 4 KB | 8 KB | 3.8 KB |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 48 MHz |
| USB Peripheral | No | No | No | No | No | Yes (USB 2.0 FS OTG) |
Bảo phân biệt quan trọng
- Extended -40C to +125C temperature grade in the same QFN-44 footprint (vsPIC18F47K40-I/ML)
- Wider 1.8-5.5 V VDD range versus LF and J53 alternatives (vsPIC18LF47K40-I/ML, PIC18F47J53-I/ML)
- 128 KB Flash with dual-bank OTA support versus 64 KB in K40 sibling (vsPIC18F46K40-I/ML)
Ghi chú thiết kế
The QFN-44 package has an exposed thermal pad (pin 44) that MUST be soldered to a grounded copper pour with at least 4 thermal vias to the internal ground plane. Without proper pad soldering, junction-to-ambient thermal resistance rises sharply and the device may overheat at 64 MHz full-load operation. Place at least one 0.1 uF decoupling capacitor on each VDD/VDDCORE pair (pins 10/20/39), positioned within 3 mm of the respective VDD pin to minimize switching-noise coupling.
Do not float the MCLR/RE3 pin (pin 29): always pull MCLR high through a 10 kohm resistor to VDD, with a 100 nF capacitor to ground for noise filtering. Floating MCLR causes spurious resets in noisy environments. Also reserve the ICSP pins RB6/ICSPCLK (pin 17) and RB7/ICSPDAT (pin 18) so a PICKit 4 can program the final assembled board - many designers route these to peripheral functions and lose in-circuit programming access.
Estimated: at VDD=5.0 V, 64 MHz active mode, and all peripherals enabled, the PIC18F47K40-E/ML draws approximately 8-12 mA (60 mW). In sleep with XLP enabled, current drops below 50 nA typical. For battery-powered designs, plan a load switch or enable pin control so the MCU can be put into sleep mode between sensor readings; this can extend a CR2032 cell life from months to years.
Thông tin tuân thủ
RoHS compliance confirmed per Microchip product page. The -E/ML suffix denotes the extended temperature grade (not AEC-Q100 automotive); for AEC-Q100 qualified PIC18 microcontrollers, Microchip offers the PIC18F K40 Q-series variants in dedicated automotive listings.