PIC18F47K42-E/MV - 128KB Flash 8-bit MCU | Microchip
MPN: PIC18F47K42-E/MV ✓ Hoạt độngPIC18F47K42-E/MV Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, data EEPROM and a rich set of analog and digital peripherals on one die. PIC18 microcontrollers use a Harvard RISC architecture with 16-bit opcodes and 8-bit data paths and sit in Microchip's portfolio between baseline PIC10/12/16 parts and the 16-bit PIC24/dsPIC families. They are widely used when deterministic interrupt response, low sleep current, and large program memory are required in cost-sensitive designs.
Key features of this device include 128 KB Flash program memory (64K x 16 words), 8 KB SRAM, 1 KB data EEPROM, 12-bit ADC2 with computation, 5-bit DAC, multiple comparators, CCP/PWM peripherals, UART/SPI/I2C, DMA, vector interrupts, and core-independent peripherals (CIPs) that offload tasks from the CPU. The Extended temperature grade (-40C to +125C) makes the 'E/MV' variant suitable for industrial and harsh-environment applications.
The CIP architecture enables hardware-driven logic, signal generation, and timing without CPU intervention, freeing the core for application code. The 12-bit ADC2 with computation performs averaging, filtering, and threshold compares in hardware. DMA moves data between peripherals and memory autonomously, allowing deterministic throughput even at low clock speeds and supporting nanoWatt XLP deep sleep modes for battery-powered designs.
Typical applications include industrial sensor nodes, building automation, motor control (BLDC and stepper), IoT edge nodes, home appliances, low-power wireless sensor hubs, lighting controllers, and human-machine interface (HMI) panels. The 128 KB Flash comfortably hosts BLE/BLE/Zigbee/LoRa stacks and graphical display drivers, while the 12-bit ADC2 with computation supports direct sensor conditioning.
When designing with this part, pay attention to the 40-pin UQFN (MV) package - it requires careful PCB thermal relief and via-in-pad design for the exposed pad. Use the MPLAB X IDE with MPLAB Code Configurator (MCC) Melody to generate peripheral drivers and Core Independent Peripheral (CIP) configurations. Program and debug using MPLAB PICkit 4, SNAP, or ICD 4 in-circuit debuggers via the ICSP interface.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers rapidly evaluate the PIC18F47K42-E/MV for new and existing designs.
Bộ thay thế dễ dàng lắp đặt cho PIC18F47K42-E/MV — 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 PIC18F47K42-E/MV (cùng hình factor và footprint) — khác nhau ở Core Architecture, ADC, Package, Program Memory (Flash), Operating Temperature.
PIC18F47K42-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K42-E/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K40-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F46K40-E/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K42-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F46K42-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K42-E/MV Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit Harvard RISC) |
| Family | PIC18FxxK42 |
| Program Memory (Flash) | 128 KB (64K x 16 words) |
| Data SRAM | 8 KB |
| Data EEPROM | 1 KB |
| Maximum CPU Frequency | 64 MHz |
| Hộp | 40-pin UQFN (5x5 mm) |
| Khoảng nhiệt độ hoạt động | -40C to +125C (Extended, 'E' grade) |
| ADC | 12-bit ADC2 with computation |
| DAC | 5-bit DAC |
| Comparators | Multiple on-chip comparators |
| PWM Channels | Multiple CCP/PWM outputs |
| Communication | UART, SPI, I2C |
| Core Independent Peripherals (CIP) | Yes (CWG, NCO, CLC, DSM, etc.) |
| DMA | Yes |
| Vector Interrupts | Yes |
| XLP (nanoWatt) Technology | Yes |
| ICSP / Debug | Yes (ICSP via PICKit/SNAP/ICD) |
| Trạng thái RoHS | Compliant |
Hướng dẫn cấu hình chân PIC18F47K42-E/MV 40-pin uqfn (5x5 mm)
Cấu hình chân cho PIC18F47K42-E/MV (40-pin uqfn (5x5 mm) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho PIC18F47K42-E/MV.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
PIC18F47K42-E/MV phù hợp cho 6 Áp dụngs: Industrial Sensor Nodes, BLDC and Stepper Motor Control, IoT Edge Nodes and Wireless Hubs, Home Appliance Control Boards, LED Lighting Controllers, Human-Machine Interface (HMI) Panels.
Industrial Sensor Nodes
The PIC18F47K42-E/MV is well suited for industrial 4-20 mA loop-powered sensor nodes because its nanoWatt XLP technology delivers sleep currents below 50 nA while the Extended -40C to +125C temperature grade survives factory-floor heat. The 12-bit ADC2 with computation handles RTD, thermocouple, and bridge-sensor conditioning directly without external analog ASICs, and the 128 KB Flash hosts Modbus RTU or IO-Link protocol stacks. CIPs like CLC and NCO generate sensor excitation and PWM drive signals in hardware, leaving the CPU idle until a measurement cycle completes - critical for battery or harvested-energy sensor nodes.
Được đề xuất
BLDC and Stepper Motor Control
The PIC18F47K42-E/MV drives 3-phase BLDC and bipolar stepper motors using its on-chip Complementary Waveform Generator (CWG), multiple PWM channels with dead-band control, and 12-bit ADC2 for current sensing. The DMA engine transfers ADC samples to memory without CPU intervention, enabling deterministic commutation at 64 MHz CPU clock. The 128 KB Flash stores sensorless BEMF or Field-Oriented Control (FOC) algorithms, and the 8 KB SRAM holds control loops and state variables. Compared with Cortex-M0+ parts, the deterministic interrupt latency of PIC18 ensures clean PWM edges without jitter-induced torque ripple.
Được đề xuất
IoT Edge Nodes and Wireless Hubs
The PIC18F47K42-E/MV acts as an application processor in IoT edge nodes that combine low-power wireless modules (Bluetooth, LoRa, Zigbee, or sub-GHz transceivers) with on-board sensing and actuation. Its 128 KB Flash hosts application firmware alongside simple wireless protocol stacks for modules like the RN4870 or MRF24XA, while the UART/SPI/I2C interfaces connect to radios and sensors. DMA offloads radio packet handling from the CPU, and nanoWatt XLP sleep modes drop system current to under 1 uA between transmissions. The Extended -40C to +125C grade suits outdoor and industrial deployments.
Được đề xuất
Home Appliance Control Boards
The PIC18F47K42-E/MV powers control boards in white goods (washing machines, dishwashers, refrigerators) and small kitchen appliances where Extended temperature operation and high noise immunity are required. Its CWG and PWM peripherals drive TRIAC and MOSFET loads for motor speed and heater control, while the 12-bit ADC2 with computation reads temperature, water level, and current sensors directly. Vector interrupts ensure rapid response to safety-critical events like door interlocks and over-temperature faults. The 128 KB Flash accommodates user-interface state machines, fault logs, and communication stacks.
Được đề xuất
LED Lighting Controllers
The PIC18F47K42-E/MV drives multi-channel LED lighting controllers in architectural, horticulture, and automotive-interior lighting. Its 16-bit PWM resolution and CWG peripherals generate smooth dimming curves, while the DMA engine updates PWM duty cycles from a color buffer in memory without CPU load. The 5-bit DAC and comparators implement constant-current feedback loops, and the Extended temperature grade maintains accuracy in enclosed luminaire environments. Wireless DMX, DALI, or Casambi stacks fit comfortably within the 128 KB Flash.
Được đề xuất
Human-Machine Interface (HMI) Panels
The PIC18F47K42-E/MV powers graphical HMI panels in industrial equipment, vending machines, and building-automation controllers. Its 128 KB Flash stores menus, graphics, and multi-language strings, while the 8 KB SRAM buffers display frames. The PIC18's deterministic interrupt response keeps touch input and display refresh latency predictable, critical for capacitive-touch and TFT LCD interfaces. Vector interrupts prioritize communication events (Modbus, CAN) over display refresh, and the Extended temperature grade supports outdoor kiosks and factory-floor panels.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F47K42-E/MV — 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 | PIC18F47K42-I/MV | PIC18F47K42-E/ML | PIC18F47K40-I/ML | PIC18F46K40-E/MV | PIC18F47K42-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-UQFN (5x5 mm) | 40-UQFN (5x5 mm) - same | 40-UQFN (5x5 mm) - same | 40-UQFN (5x5 mm) - same | 40-UQFN (5x5 mm) - same | 44-TQFP - different footprint |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB | 64 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 4 KB | 4 KB | 8 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) | Extended (-40C to +125C) |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC | 10-bit ADC | 12-bit ADC2 |
| Approx Unit Price (qty 1) | $4.92 | $4.20 | $4.92 | $3.85 | $3.95 | $4.65 |
Bảo phân biệt quan trọng
- Extended temperature grade (-40C to +125C) in same 40-UQFN footprint (vsPIC18F47K42-I/MV)
- Double the Flash memory of 40-pin siblings (vsPIC18F46K40-E/MV)
- 12-bit ADC2 with hardware computation (vsPIC18F47K40-I/ML)
Ghi chú thiết kế
The 40-pin UQFN (5x5 mm) package relies on the exposed thermal pad for heat dissipation. According to the Microchip package outline, the center pad must be soldered to a PCB ground plane with multiple thermal vias (recommended 9 vias in a 3x3 array, 0.3 mm drill) to achieve the rated theta_JA of approximately 30 C/W. Estimated: at 64 MHz CPU and full peripheral activity, core current is ~15 mA at 5V (~75 mW), so thermal dissipation is not a limiting factor in this design but the exposed pad still must be soldered for electrical and mechanical reliability.
Route the ICSP signals (PGx, PGC, PGM/MCLR) with no stubs and place a 4.7 kohm pull-up on MCLR. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of each VDD pin and bulk-decouple with a 10 uF tantalum or ceramic capacitor on the same rail. For UQFN packages, use via-in-pad with filled and plated-over vias under the thermal pad to prevent solder wicking and cold joints during reflow.
Do not confuse 'E' (Extended -40C to +125C) with 'I' (Industrial -40C to +85C) temperature grades when ordering. The 'MV' suffix denotes the 40-UQFN package; 'ML' denotes the same UQFN but with different reel orientation and 'PT' denotes 44-TQFP which is NOT pin-compatible with the MV package footprint. Always configure the CONFIG words for the Brown-out Reset voltage, watchdog timer, and Low-Voltage Programming enable before code generation in MPLAB X.
Keep the 64 MHz system clock traces short and shielded. When routing PWM outputs to gate drivers, place a 100 ohm series resistor within 5 mm of the MCU pin to dampen transmission-line ringing, especially for traces longer than 25 mm. Use the Complementary Waveform Generator (CWG) CIP to insert programmable dead-band delay in hardware, eliminating software latency jitter on complementary PWM outputs.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free and halogen-free per package materials declaration. Not AEC-Q100 qualified - this part targets industrial Extended grade rather than automotive qualification.
