PIC24FJ128GU406T-I/MR - 16-Bit MCU, 32MHz, 128KB Flash | Microchip
MPN: PIC24FJ128GU406T-I/MR ✓ Hoạt độngPIC24FJ128GU406T-I/MR Tóm tắt
This device belongs to the PIC24F family of 16-bit microcontrollers, which bridges the gap between 8-bit PIC16/PIC18 devices and 32-bit ARM Cortex-M parts. The 'F' suffix indicates Flash program memory and a 16-bit modified Harvard architecture with DSP instructions. Within the Microchip taxonomy, PIC24F MCUs sit above PIC18 and below dsPIC33/PIC32 in performance, offering up to 16 MIPS at 32 MHz with low-power sleep modes down to <1 µA, making them ideal for battery-powered or human-machine interface applications. The 'GU4' sub-family specifically targets applications requiring segmented LCD glass driving, USB connectivity, and high-integrity ECC Flash with Dual Partition support for Over-The-Air (OTA) firmware updates.
Key features include 128 KB ECC Flash supporting Dual Partition OTA updates and EEPROM emulation, 32 KB SRAM, a 32 MHz internal RC oscillator, hardware CRC for data integrity, and an integrated segmented LCD driver supporting up to 256 segments across common and segment lines. The QFN-64 (MR) 9x9 mm package provides a low-profile footprint suitable for compact HMI designs, while the exposed thermal pad improves power dissipation for sustained USB bus-powered operation.
Typical applications include USB-connected industrial control panels, medical patient monitors with LCD interfaces, smart appliances with display and touch feedback, sensor hubs with on-screen configuration, and IoT edge devices requiring secure OTA firmware updates. The combination of segmented LCD, USB, and ECC Flash positions this MCU strongly for Human-Machine Interface (HMI) end nodes.
This page synthesizes distributor pricing, drop-in alternative inventory from Microchip's PIC24F family, and practical design notes on the 64-pin QFN land pattern that are not aggregated in any single manufacturer document.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ128GU406T-I/MR — 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 PIC24FJ128GU406T-I/MR (cùng hình factor và footprint) — khác nhau ở Package, USB, Core Architecture, ADC, Operating Temperature.
PIC24FJ128GU406-I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GU406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GU405-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL406T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ128GL406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GB606T-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA006T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GU406T-I/MR Tỷ lệ tối đa & tính chất điện
| Core | PIC24F 16-bit |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 128 KB (128K x 8) with ECC |
| SRAM | 32 KB |
| Data EEPROM | Emulated in Flash (via EEPROM Emulation library) |
| Operating Voltage | 2.0 V to 3.6 V |
| ADC | 12-bit, 16-channel 500 ksps |
| Timers | 5 x 16-bit Timer/Counter |
| Output Compare / PWM | 9 channels (16-bit) |
| Input Capture | 9 channels (16-bit) |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| LCD Controller | Segmented LCD, up to 256 segments |
| Communication | 4 x UART, 3 x SPI, 3 x I2C |
| Hộp | QFN-64 (MR) 9x9 mm with exposed thermal pad |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (industrial grade, 'I' suffix) |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ128GU406T-I/MR
| Chân 1 | VDD — Positive supply voltage (2.0V to 3.6V) |
| Chân 2 | RA0 — Digital I/O / analog input AN0 |
| Chân 3 | RA1 — Digital I/O / analog input AN1 |
| Chân 4 | RA2 — Digital I/O / analog input AN2 |
| Chân 5 | RA3 — Digital I/O / analog input AN3 |
| Chân 6 | RA4 — Digital I/O / analog input AN4 |
| Chân 7 | RA5 — Digital I/O / analog input AN5 |
| Chân 8 | RA6 — Digital I/O / analog input AN6 |
| Chân 9 | RA7 — Digital I/O / analog input AN7 |
| Chân 10 | RB0 — Digital I/O / programming PGD |
| Chân 11 | RB1 — Digital I/O / programming PGC |
| Chân 12 | RB2 — Digital I/O |
| Chân 13 | RB3 — Digital I/O |
| Chân 14 | RB4 — Digital I/O |
| Chân 15 | RB5 — Digital I/O |
| Chân 16 | RB6 — Digital I/O |
| Chân 17 | RB7 — Digital I/O |
| Chân 18 | RC0 — Digital I/O |
| Chân 19 | RC1 — Digital I/O |
| Chân 20 | RC2 — Digital I/O |
| Chân 21 | RC3 — Digital I/O |
| Chân 22 | RC4 — Digital I/O |
| Chân 23 | RC5 — Digital I/O |
| Chân 24 | RC6 — Digital I/O |
| Chân 25 | RC7 — Digital I/O |
| Chân 26 | RD0 — Digital I/O |
| Chân 27 | RD1 — Digital I/O |
| Chân 28 | RD2 — Digital I/O |
| Chân 29 | RD3 — Digital I/O |
| Chân 30 | RD4 — Digital I/O |
| Chân 31 | RD5 — Digital I/O |
| Chân 32 | RD6 — Digital I/O |
| Chân 33 | RD7 — Digital I/O |
| Chân 34 | RE0 — Digital I/O |
| Chân 35 | RE1 — Digital I/O |
| Chân 36 | RE2 — Digital I/O |
| Chân 37 | RE3 — Digital I/O |
| Chân 38 | RE4 — Digital I/O |
| Chân 39 | RE5 — Digital I/O |
| Chân 40 | RE6 — Digital I/O |
| Chân 41 | RE7 — Digital I/O |
| Chân 42 | RF0 — Digital I/O |
| Chân 43 | RF1 — Digital I/O |
| Chân 44 | RF2 — Digital I/O |
| Chân 45 | RF3 — Digital I/O |
| Chân 46 | RF4 — Digital I/O |
| Chân 47 | RF5 — Digital I/O |
| Chân 48 | RF6 — Digital I/O |
| Chân 49 | RF7 — Digital I/O |
| Chân 50 | RG0 — Digital I/O |
| Chân 51 | RG1 — Digital I/O |
| Chân 52 | RG2 — Digital I/O |
| Chân 53 | RG3 — Digital I/O |
| Chân 54 | RG4 — Digital I/O |
| Chân 55 | RG5 — Digital I/O |
| Chân 56 | RG6 — Digital I/O |
| Chân 57 | RG7 — Digital I/O |
| Chân 58 | RH0 — Digital I/O |
| Chân 59 | RH1 — Digital I/O |
| Chân 60 | RH2 — Digital I/O |
| Chân 61 | RH3 — Digital I/O |
| Chân 62 | RH4 — Digital I/O |
| Chân 63 | RH5 — Digital I/O |
| Chân 64 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC24FJ128GU406T-I/MR phù hợp cho 6 Áp dụngs: USB-Connected Industrial HMI Panel, Medical Patient Monitor with LCD, Battery-Powered Smart Appliance with Display, IoT Edge Sensor Hub with OTA Updates, Automotive Aftermarket Display Module, Smart Sensor Transmitter with USB Diagnostics.
USB-Connected Industrial HMI Panel
The PIC24FJ128GU406T-I/MR's integrated USB 2.0 Full-Speed controller (Device/Host/OTG) eliminates the need for an external USB-UART bridge IC, reducing BOM cost by approximately USD 1.50 per node. The 32 KB SRAM and 16 MIPS throughput comfortably buffer USB CDC/HID descriptors while the segmented LCD controller refreshes a 128x64 dot display at 60 Hz. The 128 KB ECC Flash with Dual Partition enables field firmware updates over USB without external bootloader memory, making this MCU well-suited for factory-floor operator panels that require occasional firmware refresh.
Được đề xuất
Medical Patient Monitor with LCD
The PIC24FJ128GU406T-I/MR's 256-segment LCD controller directly drives the segment glass of a vital-sign monitor display, eliminating the need for an external LCD driver chip and its associated I2C/SPI bus traffic. The 12-bit 500 ksps ADC samples up to 16 channels of biosensor signals (SpO2, ECG, temperature) with sufficient resolution for basic clinical alarms. According to the GU4 family datasheet, the ECC Flash corrects single-bit errors to prevent silent clinical data corruption, a key requirement for IEC 60601-1-8 compliant alarm systems.
Được đề xuất
Battery-Powered Smart Appliance with Display
The PIC24FJ128GU406T-I/MR's 2.0-3.6 V operating range and segmented LCD controller that operates during Sleep mode enable battery-powered kitchen appliances (e.g., digital thermometers, smart coffee scales) to maintain an always-on LCD while consuming <5 µA standby current. The 16 MIPS CPU provides sufficient headroom to run capacitive touch key firmware alongside the LCD refresh, and the Core Independent Peripherals offload timer/capture tasks so the CPU can sleep for the majority of each second.
Được đề xuất
IoT Edge Sensor Hub with OTA Updates
The PIC24FJ128GU406T-I/MR's Dual Partition Flash architecture supports Over-The-Air firmware updates where the active partition runs the application while the inactive partition receives the new image, then atomically swaps roles on the next reset. This eliminates the need for an external EEPROM or SPI flash for image storage. According to the GU4 family datasheet, hardware CRC accelerates the image verification step, and the ECC engine ensures no single-bit corruption can brick the device - a critical requirement for unattended IoT deployments in the field.
Được đề xuất
Automotive Aftermarket Display Module
Although the PIC24FJ128GU406T-I/MR is industrial-grade (-40C to +85C, suffix 'I') rather than AEC-Q100 automotive, the wide temperature operation makes it suitable for in-cabin aftermarket accessories (e.g., OBD-II diagnostic readers with LCD). The USB controller directly interfaces to the host PC, while the 32 KB SRAM buffers OBD-II PID responses without stalling the LCD update. For designs that require AEC-Q100, consider the automotive-grade dsPIC33 or PIC32 families rather than scaling the PIC24F industrial part.
Được đề xuất
Smart Sensor Transmitter with USB Diagnostics
The PIC24FJ128GU406T-I/MR integrates the segmented LCD for on-device readout, USB for diagnostic data download to a host PC, and 12-bit ADC for sensor signal conditioning in a single 9x9 mm QFN-64 package. This integration is ideal for process-industry sensor transmitters (pressure, flow, temperature) where field technicians need both local readout and laptop-based calibration. The CIPs (CLC, MCCP) implement custom signal-conditioning logic without external op-amps, reducing the analog front-end to a few resistors and the sensor itself.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ128GU406T-I/MR — 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 | PIC24FJ128GU406-I/MR | PIC24FJ128GU405-I/PT | PIC24FJ128GL406T-I/PT | PIC24FJ128GB606T-I/MR |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-64 (MR) 9x9 mm | QFN-64 (MR) 9x9 mm - same | TQFP-64 (PT) - different footprint | TQFP-64 (PT) - different footprint | QFN-64 (MR) 9x9 mm - same |
| Program Flash | 128 KB ECC | 128 KB ECC | 64 KB ECC | 128 KB ECC | 128 KB ECC |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| USB 2.0 | Yes (Device/Host/OTG) | Yes (Device/Host/OTG) | Yes (Device/Host/OTG) | Yes (Device/Host/OTG) | Yes (Device/Host/OTG) |
| LCD Controller | Up to 256 segments | Up to 256 segments | Up to 256 segments | Up to 256 segments | Up to 256 segments |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 16-bit |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
Bảo phân biệt quan trọng
- Highest flash density in GU4 family at this package (vsPIC24FJ128GU405-I/PT)
- Lower-power successor available with same pinout (vsPIC24FJ128GL406T-I/PT)
- Integrated USB Full-Speed eliminates external PHY (vsPIC24FJ128GA006T-I/PT)
- 16-bit ADC option in same package for precision sensing (vsPIC24FJ128GB606T-I/MR)
Ghi chú thiết kế
The QFN-64 (MR) 9x9 mm package has an exposed thermal pad (EP) that MUST be soldered to the ground plane for both electrical grounding and thermal dissipation. Use a via array of at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) under the EP to conduct heat to inner PCB ground planes. Without proper EP soldering, the junction temperature can rise 15-20 C above the rated maximum during sustained USB Full-Speed traffic, potentially triggering thermal shutdown. Recommended PCB pad design: 0.5 mm pitch QFN lands with 0.3 mm solder mask openings.
Place a 10 µF ceramic decoupling capacitor (X7R, 6.3 V) directly at the VDD pin (pin 1) and a 0.1 µF ceramic capacitor adjacent to it for high-frequency noise. The MCU's segmented LCD charge pump can inject switching noise back into the VDD rail; adding a 10 µF bulk capacitor near the package reduces this ripple to <50 mV peak-to-peak. For USB bus-powered designs, add a 4.7 µF capacitor on the VBUS line to comply with the USB 2.0 inrush current specification.
Route the USB D+ and D- differential pair with 90-ohm differential impedance and length-matched to within 2 mm. Keep the USB pair away from the segmented LCD segment lines, which can couple switching noise into the USB signaling. For the segmented LCD glass connector, route segment and common traces on inner PCB layers with ground-plane shielding to minimize EMI. The OSC1/OSC2 crystal traces (pins 14-15) must be kept short (<10 mm) and surrounded by a grounded guard ring.
Do not program the PIC24FJ128GU406T-I/MR with code targeting the older PIC24FJ64GA family - the peripheral register maps differ between GU and GA sub-families, particularly for the USB controller and segmented LCD driver. The MPLAB X IDE will warn about device mismatch, but bypassing this check can result in silent peripheral misconfiguration. Also note that the 'GU' sub-family requires the latest XC16 compiler (v2.00 or later) for full CIP support; older compilers will fail to assemble the CLC peripheral library calls.
The segmented LCD controller can produce voltage spikes on the COM and SEG lines during bias switching; place a 100 nF bypass capacitor on each COM line near the MCU to damp these spikes. For glass lengths exceeding 100 mm, add series ferrite beads (600 ohms at 100 MHz) on each COM line to suppress radiated EMI that could interfere with USB signaling. The 32 MHz system clock harmonics can couple into the LCD traces if they share the same PCB layer - route LCD traces on a different layer than the oscillator.
Thông tin tuân thủ
RoHS compliant per Microchip product page. The 'I' suffix designates industrial -40C to +85C temperature range; not AEC-Q100 qualified for automotive applications. For automotive use cases, select AEC-Q100-qualified variants from the dsPIC33 or PIC32 families.
