PIC18F47Q43T-I/MP - 128KB Flash 8-bit MCU | Microchip
MPN: PIC18F47Q43T-I/MP ✓ Hoạt độngPIC18F47Q43T-I/MP Tóm tắt
What is an 8-bit microcontroller? An 8-bit MCU is a programmable microcontroller that uses an 8-bit data bus as its core processing unit, and belongs to the broader category of microcontrollers -> embedded processors -> semiconductor ICs. Within the PIC18 family, the Q43 line targets functional safety, XLP (eXtreme Low Power), and hardware customization through configurable logic and interconnected CIPs. Compared with 16- or 32-bit MCUs, an 8-bit PIC like the PIC18F47Q43T-I/MP excels in deterministic interrupt response, simple peripheral integration, and very low active and sleep power budgets.
Key features include 12-bit ADC2 with computation, 5-bit DAC, comparators with 16-bit PWM, hardware limit timer (HLT), windowed watchdog timer (WWDT), CRC/SCAN, zero-cross detect (ZCD), and Peripheral Pin Select (PPS) that allows most digital I/O to be remapped to a wide range of device pins. The 8-bit PIC18 CPU delivers 64 MHz operation with up to 16 MIPS throughput, while keeping peripheral activity possible in IDLE and DOZE modes.
The architecture combines a RISC core with hardware CIP blocks, eliminating many software loops and shrinking firmware size. Functional Safety support (FuSa) and XLP technology with sub-uA sleep currents make the device attractive in safety-critical and battery-powered designs. Internal 64 MHz oscillator accuracy (1% typical) supports both USB-friendly and timing-sensitive implementations without an external crystal.
Typical applications include industrial sensor conditioning nodes, IoT edge nodes with secure boot, automotive body and accessory modules, consumer appliances with HMI control, low-power motor and LED drivers, and medical measurement instrument peripherals. The combination of 128 KB Flash, 8 KB RAM, and rich analog/peripheral mix fits mid-range embedded products.
When designing with this device, allocate PCB area for the 40-QFN thermal pad, which must be soldered to the ground plane for thermal and electrical performance. Route the PGC/PGD lines short and shielded for robust in-circuit serial programming (ICSP), and reserve RE3/MCLR as the reset pin with proper external pull-up.
This page synthesizes distributor pricing, drop-in alternatives, design notes, and FAQ collected from manufacturer documentation - giving engineers a faster reference than the datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F47Q43T-I/MP — 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 PIC18F47Q43T-I/MP (cùng hình factor và footprint) — khác nhau ở Core, DAC, Package, Program Memory (Flash), ADC.
PIC18F45Q43T-I/MP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F46Q43T-I/MP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F48Q43T-I/MP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F47K42T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47Q43-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F47Q43T-I/MP Tỷ lệ tối đa & tính chất điện
| Core | PIC18 8-bit RISC |
| Maximum CPU Frequency | 64 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 8 KB |
| EEPROM | 1 KB |
| ADC | 12-bit ADC2 with computation |
| DAC | 5-bit DAC |
| Comparators | Yes |
| PWM | 16-bit PWM |
| Operating Voltage Range | 1.8 V to 5.5 V |
| I/O Count | 36 |
| Hộp | 40-pin QFN (5x5 mm) |
| Nhiệt độ hoạt động | -40C to +85C |
| Kiểu lắp đặt | Surface Mount |
| Tính năng | XLP, Functional Safety (FuSa), Core Independent Peripherals, PPS, CRC/SCAN, HLT, WWDT, ZCD |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F47Q43T-I/MP
| Chân 1 | RA2 — Analog/Digital I/O |
| Chân 2 | RA3 — Analog/Digital I/O |
| Chân 3 | RA4 — Analog/Digital I/O |
| Chân 4 | RA5 — Analog/Digital I/O |
| Chân 5 | RA6 — Analog/Digital I/O |
| Chân 6 | RA7 — Analog/Digital I/O |
| Chân 7 | VSS — Ground |
| Chân 8 | VDD — Positive supply |
| Chân 9 | OSC1 — Crystal/clock input |
| Chân 10 | OSC2 — Crystal output |
| Chân 11 | RC0 — Digital I/O |
| Chân 12 | RC1 — Digital I/O |
| Chân 13 | RC2 — Digital I/O |
| Chân 14 | RC3 — Digital I/O |
| Chân 15 | RC4 — Digital I/O |
| Chân 16 | RC5 — Digital I/O |
| Chân 17 | RC6 — Digital I/O |
| Chân 18 | RC7 — Digital I/O |
| Chân 19 | VSS — Ground |
| Chân 20 | VDD — Positive supply |
| Chân 21 | RB0 — Digital I/O, INT |
| Chân 22 | RB1 — Digital I/O, INT |
| Chân 23 | RB2 — Digital I/O, INT |
| Chân 24 | RB3 — Digital I/O, INT |
| Chân 25 | RB4 — Digital I/O |
| Chân 26 | RB5 — Digital I/O |
| Chân 27 | RB6 — Digital I/O, PGC |
| Chân 28 | RB7 — Digital I/O, PGD |
| Chân 29 | RE3 — Digital I/O, MCLR/Reset |
| Chân 30 | VSS — Ground |
| Chân 31 | VDD — Positive supply |
| Chân 32 | RD0 — Digital I/O |
| Chân 33 | RD1 — Digital I/O |
| Chân 34 | RD2 — Digital I/O |
| Chân 35 | RD3 — Digital I/O |
| Chân 36 | RD4 — Digital I/O |
| Chân 37 | RD5 — Digital I/O |
| Chân 38 | RD6 — Digital I/O |
| Chân 39 | RD7 — Digital I/O |
| Chân 40 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC18F47Q43T-I/MP phù hợp cho 6 Áp dụngs: Industrial Sensor Conditioning Node, IoT Edge Node with Secure Boot, Automotive Body and Accessory Module, Consumer Appliance HMI Controller, Low-Power Motor and LED Driver, Medical Measurement Peripheral.
Industrial Sensor Conditioning Node
The PIC18F47Q43T-I/MP fits industrial sensor nodes because its 12-bit ADC2 with computation handles linearization, averaging, and oversampling in hardware, off-loading these tasks from the CPU. Its 1.8-5.5 V operating range accepts power directly from a 4-20 mA loop or 24 V bus through a low-drop regulator, while 8 KB SRAM and 128 KB Flash accommodate protocol stacks for IO-Link, Modbus, or CAN. The 64 MHz core with 16 MIPS throughput leaves plenty of headroom for safety diagnostics via the integrated Functional Safety (FuSa) hardware.
Được đề xuất
IoT Edge Node with Secure Boot
The PIC18F47Q43T-I/MP suits IoT edge nodes that need energy-efficient connectivity, because the XLP technology delivers sub-uA sleep currents in IDLE and DOZE modes, while 8 KB SRAM keeps a TLS or LoRaWAN stack resident. The CRC/SCAN peripheral detects memory faults, supporting class-A safety for connected sensors. PPS allows designers to remap UART, SPI, and I2C to any digital pin, simplifying PCB routing for RF modules and sensors alike.
Được đề xuất
Automotive Body and Accessory Module
Automotive body and accessory ECUs benefit from the PIC18F47Q43T-I/MP's Functional Safety (FuSa) features such as WWDT and HLT, ensuring fail-safe detection for door, seat, and lighting modules. The 16-bit PWM with hardware limit timer provides precise control for LED matrix drivers and stepper motors, while the 5-bit DAC and comparators drive audio chime generators. Industrial-grade temperature range -40C to +85C supports cabin and door environments, and the 40-QFN land pattern saves PCB space versus 44-TQFP.
Được đề xuất
Consumer Appliance HMI Controller
Consumer appliances such as washing machines, ovens, and coffee machines can use the PIC18F47Q43T-I/MP as their HMI controller, leveraging the 16-bit PWM to drive LED backlighting and buzzer outputs with smooth dimming. The 12-bit ADC2 reads multiple temperature and humidity sensors concurrently, while the 5-bit DAC provides bias for TFT displays. Core Independent Peripherals run capacitive touch sensing without CPU intervention, freeing MIPS for the main application firmware in 128 KB Flash.
Được đề xuất
Low-Power Motor and LED Driver
Motor and lighting drivers benefit from the PIC18F47Q43T-I/MP's 16-bit PWM with hardware limit timer (HLT), generating brushed DC, stepper, or 4-wire PWM signals with timing accuracy better than 5 ns, all without CPU overhead. The 8-bit PIC18 core reaches 64 MHz, giving responsive speed loops even on small BLDC ceiling fans. HLT detects fault conditions such as desaturation or over-current within one PWM cycle, triggering PWM shutdown via hardware without firmware latency.
Được đề xuất
Medical Measurement Peripheral
Medical peripherals such as pulse oximeters, spirometers, and blood-pressure cuffs benefit from the PIC18F47Q43T-I/MP's 12-bit ADC2 with computation, performing gain and offset correction on photodiode or pressure-sensor signals at sample rates up to 1 Msps. The 8 KB SRAM holds acquisition buffers while 128 KB Flash hosts the math library and signal-processing firmware. XLP low-power modes extend battery life on portable diagnostic devices, while Functional Safety hardware monitors watchdog and CRC integrity for IEC 60601 designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F47Q43T-I/MP — 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 | PIC18F45Q43T-I/MP | PIC18F46Q43T-I/MP | PIC18F48Q43T-I/MP | PIC18F47K42T-I/PT | PIC18F47Q43-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin QFN (5x5) | 40-pin QFN (5x5) - same | 40-pin QFN (5x5) - same | 40-pin QFN (5x5) - same | TQFP-44 (PT) | TQFP-44 (PT) |
| Flash Memory | 128 KB | 32 KB | 64 KB | 256 KB | 128 KB | 128 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 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 |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Functional Safety (FuSa) | Yes | Yes | Yes | Yes | No | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| Temperature Grade | Industrial | Industrial | Industrial | Industrial | Industrial | Extended |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | No | Yes |
| Unit Price (qty 1, USD) | 3.10 | 2.60 (approx.) | 2.85 (approx.) | 3.40 (approx.) | 3.20 (approx.) | 3.30 (approx.) |
Bảo phân biệt quan trọng
- Functional Safety (FuSa) hardware (vsPIC18F47K42T-I/PT)
- Memory tier scalability (vsPIC18F45Q43T-I/MP)
- Wider operating voltage range with integrated regulators (vsPIC18F46Q43T-I/MP)
Ghi chú thiết kế
The 40-pin QFN (5x5 mm) package has an exposed pad that doubles as the ground connection and as the primary thermal path. Solder the EPAD to a large copper ground plane with multiple thermal vias for thermal and electrical performance. Estimated: at 64 MHz operation, the device dissipates approximately 30 mW internally; no heatsinking is required for normal operation, but the EPAD must be soldered to maintain junction-to-ambient thermal resistance near the datasheet figure.
Keep PGC (RB6) and PGD (RB7) tracks under 50 mm and route them away from switching rails and RF sources to ensure robust in-circuit serial programming (ICSP). Place the 0.1 uF VDD decoupling capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor on the supply rail. The reset circuit on RE3/MCLR requires a 10 kohm pull-up to VDD; do not leave RE3 floating.
Avoid parallel ICSP header + application loading on the same RB6/RB7 lines without series resistors or buffer isolation, as load conflicts may prevent programming. The internal 64 MHz HFINTOSC defaults on startup - if firmware timing assumes a different clock, set OSCCON early in init code. PPS unlock sequence must be executed before re-routing peripherals (PPSLOCKED bit set), otherwise writes are silently ignored by hardware.
Thông tin tuân thủ
Industrial grade -40C to +85C; RoHS and REACH compliant per Microchip PIC18F47Q43 product page. AEC-Q100 grade is not applicable for this industrial-grade part - for AEC-Q100 automotive-qualified equivalents, refer to other PIC18 variants.
