PIC18F57K42-E/MV - 64MHz 8-bit MCU, 128KB Flash, 48-UQFN | Microchip
MPN: PIC18F57K42-E/MV ✓ Hoạt độngPIC18F57K42-E/MV Tóm tắt
An 8-bit microcontroller (MCU) is a programmable embedded processor that integrates a CPU, memory, and peripherals onto a single silicon die. The PIC18 family sits at the top of Microchip's 8-bit portfolio, sitting between baseline PIC10/12/16 parts and higher-end dsPIC/32-bit families. The PIC18FxxK42 series specifically targets low-power (XLP) applications with rich analog integration including 12-bit ADC2 with computation, DAC, comparators, and op amps, alongside DMA, vector interrupts, and configurable logic cells (CLC).
Key features of the PIC18F57K42 include the 12-bit ADC2 module with automatic averaging and threshold scanning, multiple SPI/I2C/UART interfaces with LIN support, DMA controllers for offloading the CPU, and PWM/CCP modules for motor and power control. The device includes 44 user I/O pins with peripheral pin select (PPS) for flexible signal routing. Core independent peripherals allow sensor interfacing and signal generation without CPU intervention, lowering active time and overall power consumption. The XLP (eXtreme Low Power) technology brings deep sleep currents under 50nA with retention RAM.
From an architectural standpoint, the PIC18F57K42 uses a 16-bit modified Harvard architecture with separate program and data buses, executing most instructions in a single cycle. The 128KB Flash supports self-programmability via ICSP, and 256B of EEPROM provides non-volatile data storage. The 8KB SRAM includes 1KB of retention RAM that survives sleep modes for state preservation.
Typical applications include industrial sensor nodes, motor control drives, IoT edge devices, building automation, HVAC control, low-power wireless sensor hubs, and consumer appliances. The combination of USB-less 48-pin density, 64MHz performance, and large memory makes it ideal for protocol-rich appliances and IoT gateways. Designers favor it for code-density, deterministic interrupt latency, and Microchip's mature MPLAB X toolchain with XC8 compiler support.
When designing with the PIC18F57K42-E/MV, ensure the UQFN-48 PCB footprint includes thermal pad soldering per IPC-7351 for heat dissipation, and follow Microchip's AN2644 application note for optimal XLP sleep-mode configuration. The 48-UQFN MV package has tight pad pitch - 0.4mm spacing - so stencil design and reflow profile must be controlled during assembly.
This page consolidates distributor pricing, drop-in alternatives within the PIC18FxxK42 family and cross-brand 8-bit MCU options, and practical design notes that go beyond the manufacturer datasheet to support component selection, sourcing, and PCB layout decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC18F57K42-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 PIC18F57K42-E/MV (cùng hình factor và footprint) — khác nhau ở Package, ADC, Comparators, DMA, PWM Channels.
PIC18F57K42-I/MV
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F56K42-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F57K42-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F55K42-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47K42-I/MV
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F57K42-E/MV Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit (modified Harvard) |
| Family | PIC18FxxK42 (XLP, 12-bit ADC2) |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 8 KB |
| EEPROM | 256 B |
| Hộp | 48-pin UQFN (MV), 6x6 mm |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40 C to +125 C (extended, -E grade) |
| Number of I/O Pins | 44 |
| ADC | 12-bit ADC2 with computation, up to 43 channels |
| DAC | 5-bit and 8-bit DAC outputs |
| Communication Interfaces | UART, SPI, I2C, LIN bus |
| PWM / CCP | Multiple PWM channels and CCP modules |
| DMA Controllers | Yes (multi-channel) |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals (CIP) | CLC, CWG, SMT, PWM, NCO |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F57K42-E/MV
| Chân 1 | RA0/ANA0 — Analog input 0 / Digital I/O |
| Chân 2 | RA1/ANA1 — Analog input 1 / Digital I/O |
| Chân 3 | RA2/ANA2 — Analog input 2 / Digital I/O |
| Chân 4 | RA3/ANA3 — Analog input 3 / Digital I/O |
| Chân 5 | RA4/ANA4 — Analog input 4 / Digital I/O |
| Chân 6 | RA5/ANA5 — Analog input 5 / Digital I/O |
| Chân 7 | RA6/ANA6 — Analog input 6 / Digital I/O |
| Chân 8 | RA7/ANA7 — Analog input 7 / Digital I/O |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RA8 — Digital I/O only |
| Chân 11 | RA9 — Digital I/O only |
| Chân 12 | RA10 — Digital I/O only |
| Chân 13 | RA11 — Digital I/O only |
| Chân 14 | RA12 — Digital I/O only |
| Chân 15 | VDD — Positive supply |
| Chân 16 | RB0 — Digital I/O / Interrupt-on-change |
| Chân 17 | RB1 — Digital I/O / Interrupt-on-change |
| Chân 18 | RB2 — Digital I/O / Interrupt-on-change |
| Chân 19 | RB3 — Digital I/O / Interrupt-on-change |
| Chân 20 | RB4 — Digital I/O / Interrupt-on-change |
| Chân 21 | RB5 — Digital I/O / Interrupt-on-change |
| Chân 22 | RB6/ICSPCLK — Digital I/O / ICD clock |
| Chân 23 | RB7/ICSPDAT — Digital I/O / ICD data |
| Chân 24 | VSS — Ground reference |
| Chân 25 | RC0 — Digital I/O |
| Chân 26 | RC1 — Digital I/O |
| Chân 27 | RC2 — Digital I/O |
| Chân 28 | RC3 — Digital I/O |
| Chân 29 | RC4 — Digital I/O |
| Chân 30 | RC5 — Digital I/O |
| Chân 31 | RC6 — Digital I/O |
| Chân 32 | RC7 — Digital I/O |
| Chân 33 | VDD — Positive supply |
| Chân 34 | RD0 — Digital I/O |
| Chân 35 | RD1 — Digital I/O |
| Chân 36 | RD2 — Digital I/O |
| Chân 37 | RD3 — Digital I/O |
| Chân 38 | RD4 — Digital I/O |
| Chân 39 | RD5 — Digital I/O |
| Chân 40 | RD6 — Digital I/O |
| Chân 41 | RD7 — Digital I/O |
| Chân 42 | RE0 — Digital I/O |
| Chân 43 | RE1 — Digital I/O |
| Chân 44 | RE2 — Digital I/O |
| Chân 45 | RE3 — Digital I/O |
| Chân 46 | VDD — Positive supply |
| Chân 47 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Chân 48 | OSC2/CLKOUT — Crystal oscillator output / clock out |
Ứng dụng tiêu biểu
PIC18F57K42-E/MV phù hợp cho 6 Áp dụngs: Industrial Sensor Node and Condition Monitoring, Low-Power IoT Edge Device with Sensor Hub, HVAC and Building Automation Controller, Brushless DC Motor Control Drive, Consumer Appliance Control Board, Smart Agriculture Sensor and Irrigation Controller.
Industrial Sensor Node and Condition Monitoring
The PIC18F57K42-E/MV fits industrial sensor nodes because its 12-bit ADC2 with computation and threshold scanning reads multiple sensors without CPU wake-up, extending battery life. The 64MHz CPU and 128KB Flash fit protocol stacks like IO-Link, MODBUS RTU, or proprietary RS-485 protocols. Its 1.8V-5.5V VDD range allows direct operation from 3.3V or 5V industrial rails, while the extended -40C to +125C range ensures reliability in unheated enclosures. Pair with an RS-485 transceiver for industrial bus connectivity, and use the CLC peripheral to debounce and time-stamp digital inputs without software overhead. XLP deep sleep keeps quiescent current in the nA range for multi-year battery deployments.
Được đề xuất
Low-Power IoT Edge Device with Sensor Hub
The PIC18F57K42-E/MV is ideal for low-power IoT edge devices because its XLP technology enables deep sleep currents under 50nA with 1KB retention RAM preserving state across sleep cycles. The 128KB Flash fits BLE-host stacks or sub-GHz proprietary protocols, while the 12-bit ADC2 samples analog sensors autonomously via DMA. The 44 user I/O with peripheral pin select (PPS) allow flexible pin assignment for SPI sensors, I2C devices, and GPIO buttons without PCB redesign. Pair with a SX1276 LoRa transceiver for long-range outdoor IoT, or with an RN4871 BLE module for short-range mobile-connected applications. The extended temperature range supports outdoor and industrial-edge deployments.
Được đề xuất
HVAC and Building Automation Controller
The PIC18F57K42-E/MV is well-suited for HVAC damper, fan, and valve controllers due to its 12-bit ADC2 for temperature/pressure sensing, multi-channel PWM for motor and proportional valve drive, and 128KB Flash that fits BACnet MS-TP or proprietary building-automation stacks. The 44 I/O allow interfacing multiple thermistors, contactors, and triac drivers without an additional I/O expander. The DMA offloads UART activity from the CPU so the core remains free for control-loop math, while the LIN bus interface supports HVAC-specific peripherals. The -40C to +125C extended temperature range handles mechanical-room thermal environments.
Được đề xuất
Brushless DC Motor Control Drive
The PIC18F57K42-E/MV fits BLDC motor control applications because its multi-channel PWM and CCP modules generate complementary three-phase drive signals with dead-band control, while the 12-bit ADC2 with DMA samples back-EMF and current sense synchronously. The CWG (Complementary Waveform Generator) peripheral produces center-aligned PWM without CPU intervention, freeing cycles for speed-loop calculation. 128KB Flash holds sensorless or sensored BLDC firmware libraries, and 8KB RAM handles field-oriented control (FOC) math tables. The extended temperature range supports motor-driver co-location with MOSFETs. Pair with a DRV8313 three-phase gate driver for integrated compact drives.
Được đề xuất
Consumer Appliance Control Board
The PIC18F57K42-E/MV serves consumer appliance control boards - washing machines, dishwashers, refrigerators, and coffee machines - because it balances code space (128KB Flash for user-interface and motor-control code), RAM (8KB for LCD buffer and state machines), and GPIO (44 I/O for buttons, displays, sensors, and relay drivers). The 12-bit ADC2 monitors temperature and water level, the multi-channel PWM drives pumps and fans, and LIN bus interfaces with display sub-modules. The XLP modes help appliances meet strict standby power regulations like EU Tier 2 (<0.5W). The -E temperature variant handles oven-adjacent environments.
Được đề xuất
Smart Agriculture Sensor and Irrigation Controller
The PIC18F57K42-E/MV is a strong fit for smart agriculture soil-moisture, weather, and irrigation controllers due to its low-power XLP modes (nA deep sleep), 12-bit ADC2 for moisture and pH sensing, and 128KB Flash for time-based irrigation scheduling. The DMA-driven UART offloads LoRa or NB-IoT modem communication, while the CLC and SMT peripherals debounce rain sensors and count flow-meter pulses without CPU wake-ups. The 1.8V-5.5V VDD range allows solar-battery operation, and the extended -40C to +125C temperature range handles outdoor cabinet environments. Pair with a soil moisture probe and a latching solenoid driver for low-power irrigation valves.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F57K42-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 | PIC18F57K42-I/MV | PIC18F56K42-I/MV | PIC18F57K42-I/PT | PIC18F55K42-I/MV |
|---|---|---|---|---|---|
| Package | 48-UQFN (MV) 6x6 mm | 48-UQFN (MV) - same | 48-UQFN (MV) - same | 48-TQFP (PT) - differs | 48-UQFN (MV) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 64 KB (-50%) | 128 KB | 32 KB (-75%) |
| RAM | 8 KB | 8 KB | 4 KB (-50%) | 8 KB | 2 KB (-75%) |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Frequency | 64 MHz | 64 MHz | 64 MHz | 64 MHz | 64 MHz |
| Operating Temperature | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Number of I/O | 44 | 44 | 44 | 44 | 44 |
Bảo phân biệt quan trọng
- Largest Flash in PIC18FxxK42 UQFN-48 family at 128KB (vsPIC18F56K42-I/MV)
- Extended -40C to +125C temperature range as standard part (vsPIC18F57K42-I/MV)
- Compact 48-UQFN footprint for high-I/O density designs (vsPIC18F47K42-I/MV)
Ghi chú thiết kế
The 48-pin UQFN (MV) package uses a 6x6 mm body with 0.4mm pitch pads and a central exposed pad (EP) that must be soldered to the PCB for thermal dissipation. Follow Microchip AN2644 for UQFN PCB footprint design. Use NSMD pads with a 1:1.2 ratio pad-to-mask, and ensure the EP has a minimum of 9 thermal vias (0.2mm drill, 0.5mm pitch) to the inner ground plane. Stencil aperture should be 80-90% of the pad size to limit solder balling.
Place 100nF decoupling capacitors within 3mm of each VDD pin and a single 4.7uF bulk capacitor near the package. The PIC18F57K42 ADC2 accuracy is highly sensitive to VDD noise - use a ferrite bead or pi-filter between digital VDD and analog AVDD if analog readings are critical. For XLP sleep current verification, follow Microchip AN2353 for accurate nA-range measurements; standard multimeters are insufficient.
Do not rely on default FOSC configuration without verifying with CONFIG1 register settings - the PIC18F57K42 supports multiple oscillator modes (HFINTOSC, EC, XT, HS). Pinout for the MV package is NOT pin-compatible with the PT (48-TQFP) or PT package (40-pin) variants; schematic must match the actual package. PPS assignments must be unlocked via the PPSLOCK register sequence before reprogramming - lockouts are a common debug issue.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 qualified PIC18 variants for automotive. Lead-free and halogen-free per Microchip environmental compliance declarations.
