PIC24FJ128GU405-E/M4 - 16-bit MCU, 128KB Flash, USB, LCD | Microchip
MPN: PIC24FJ128GU405-E/M4 ✓ Hoạt độngPIC24FJ128GU405-E/M4 Tóm tắt
A 16-bit PIC microcontroller (MCU) is a microprocessor-on-a-chip that integrates a CPU core, program memory (Flash), data memory (SRAM), peripherals (USB, ADC, timers, LCD driver), and I/O in a single IC. Within the broader semiconductor taxonomy, an MCU sits under microprocessor -> microcontroller -> embedded controller. The PIC24F family specifically targets low-power, mixed-signal embedded applications with deterministic interrupt response and a rich peripheral set known as Core Independent Peripherals (CIPs).
Key differentiating features of the PIC24FJ128GU405-E/M4 include 128KB Flash supporting real-time Over-The-Air (OTA) updates via dual-partition memory, EEPROM emulation without external EEPROM, integrated segmented LCD driver, and a full-speed USB 2.0 device/host/OTG controller. The 32MHz system clock yields 16 MIPS throughput, and the device operates from 2.0V to 3.6V with multiple low-power sleep modes for battery-driven designs.
The architecture combines a modified Harvard CPU with a 16-bit data path, hardware multiply/divide, and a vectored interrupt controller. The CIPs include configurable logic cells, multiple UART/SPI/I2C instances, 12-bit ADC, and crypto-grade secure firmware update features that allow field upgrades without external bootloader code. This makes the part particularly suited to connected, secure, and field-serviceable embedded products.
Typical applications include USB-equipped human-interface devices (HIDs), IoT sensor nodes with LCD readout, industrial control panels, medical patient monitors with display and USB charging, automotive body controllers (AEC-Q100 qualified variants exist), and consumer appliances with secure OTA firmware capability.
When designing with this part, evaluate whether the 48-pin UQFN footprint provides sufficient I/O for your application. The dual-partition flash requires firmware to manage the A/B swap; Microchip's bootloader library (AN1388) provides reference implementation. Always include decoupling (100 nF + bulk) on each power pin and route the USB DP/DM traces as a 90-ohm differential pair.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ128GU405-E/M4 — 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 PIC24FJ128GU405-E/M4 (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core Architecture, LCD Controller.
PIC24FJ128GL405-I/M4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL405-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL405-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL410T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GU405-E/M4 Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F 16-bit |
| CPU Core | Modified Harvard, 16-bit data path |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash Memory | 128 KB (128K x 8) |
| SRAM | 32 KB |
| EEPROM | Emulated in Flash |
| Hộp | 48-pin UQFN (M4) 6x6 mm |
| Điện áp cung cấp | 2.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +125C (E = Extended) |
| USB Controller | USB 2.0 Full-Speed Device/Host/OTG |
| LCD Driver | Integrated segmented LCD |
| ADC | 12-bit |
| Dual-Partition Flash | Yes (OTA-capable) |
| AEC-Q100 Qualified | Yes (Automotive variants available) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ128GU405-E/M4
| Chân 1 | RA0 — PORTA bit 0 (analog/digital I/O) |
| Chân 2 | RA1 — PORTA bit 1 |
| Chân 3 | RA2 — PORTA bit 2 |
| Chân 4 | RA3 — PORTA bit 3 |
| Chân 5 | RA4 — PORTA bit 4 |
| Chân 6 | VDD — Positive supply voltage (2.0V-3.6V) |
| Chân 7 | VSS — Ground reference |
| Chân 8 | RA5 — PORTA bit 5 |
| Chân 9 | RA6 — PORTA bit 6 |
| Chân 10 | RA7 — PORTA bit 7 |
| Chân 11 | RB0 — PORTB bit 0 (ICD programming) |
| Chân 12 | RB1 — PORTB bit 1 |
| Chân 13 | RB2 — PORTB bit 2 |
| Chân 14 | RB3 — PORTB bit 3 |
| Chân 15 | RB4 — PORTB bit 4 |
| Chân 16 | RB5 — PORTB bit 5 |
| Chân 17 | RB6 — PORTB bit 6 |
| Chân 18 | RB7 — PORTB bit 7 |
| Chân 19 | VSS — Ground |
| Chân 20 | RC0 — PORTC bit 0 |
| Chân 21 | RC1 — PORTC bit 1 |
| Chân 22 | RC2 — PORTC bit 2 |
| Chân 23 | RC3 — PORTC bit 3 |
| Chân 24 | RC4 — PORTC bit 4 |
| Chân 25 | RC5 — PORTC bit 5 |
| Chân 26 | RC6 — PORTC bit 6 |
| Chân 27 | RC7 — PORTC bit 7 |
| Chân 28 | RD0 — PORTD bit 0 |
| Chân 29 | RD1 — PORTD bit 1 |
| Chân 30 | RD2 — PORTD bit 2 |
| Chân 31 | RD3 — PORTD bit 3 |
| Chân 32 | RD4 — PORTD bit 4 |
| Chân 33 | RD5 — PORTD bit 5 |
| Chân 34 | RD6 — PORTD bit 6 |
| Chân 35 | RD7 — PORTD bit 7 |
| Chân 36 | RE0 — PORTE bit 0 |
| Chân 37 | RE1 — PORTE bit 1 |
| Chân 38 | RE2 — PORTE bit 2 |
| Chân 39 | RE3 — PORTE bit 3 |
| Chân 40 | RE4 — PORTE bit 4 |
| Chân 41 | RE5 — PORTE bit 5 |
| Chân 42 | RE6 — PORTE bit 6 |
| Chân 43 | RE7 — PORTE bit 7 |
| Chân 44 | VDD — Positive supply voltage |
| Chân 45 | VSS — Ground |
| Chân 46 | RF0 — PORTF bit 0 |
| Chân 47 | RF1 — PORTF bit 1 |
| Chân 48 | EP — Exposed Pad (thermal/ground - must be connected to PCB ground plane) |
Ứng dụng tiêu biểu
PIC24FJ128GU405-E/M4 phù hợp cho 6 Áp dụngs: USB HID Peripheral (Keyboard/Mouse/Gamepad), IoT Sensor Node with LCD Readout, Industrial Control Panel / HMI, Medical Patient Monitor (Display + USB Charging), Automotive Body Controller (AEC-Q100 variant), Consumer Appliance with Secure OTA Firmware.
USB HID Peripheral (Keyboard/Mouse/Gamepad)
The PIC24FJ128GU405-E/M4 is purpose-built for USB Human Interface Devices thanks to its integrated full-speed USB 2.0 controller (Device mode) which eliminates the need for an external USB interface IC. The 32KB SRAM comfortably holds USB HID report buffers and application state, while the 128KB Flash stores HID descriptors, keymaps, and application logic. Running at 16 MIPS, the MCU handles USB interrupt latency (sub-1ms polling interval) with ample headroom for debouncing, LED control, and macro processing. Use the Microchip USB Stack (MLA) for certified HID class drivers.
Được đề xuất
IoT Sensor Node with LCD Readout
The integrated segmented LCD driver (up to ~128 segments per the family datasheet) plus 12-bit ADC and Core Independent Peripherals make the PIC24FJ128GU405-E/M4 an excellent fit for battery-powered IoT sensor nodes that display readings locally. The dual-partition Flash enables secure OTA firmware updates in the field, while multiple low-power sleep modes (down to sub-uA levels per the family datasheet) extend battery life. The 2.0V minimum VDD supports direct connection to 2-cell AA battery packs without boost conversion.
Được đề xuất
Industrial Control Panel / HMI
Industrial HMIs benefit from the PIC24FJ128GU405-E/M4's integrated LCD driver, multiple UART/SPI/I2C instances, and 16 MIPS performance to drive segmented displays, keypad scanning via CIPs, and fieldbus communications. The Extended -40C to +125C temperature grade supports harsh factory environments. CIPs (Configurable Logic Cells, 32-bit timers, hardware PWM) handle keypad matrix scanning and motor-control signaling without CPU intervention, freeing the core for higher-level protocols like Modbus RTU or CANopen.
Được đề xuất
Medical Patient Monitor (Display + USB Charging)
The full-speed USB OTG capability allows the PIC24FJ128GU405-E/M4 to act as a USB device for data upload to a host PC, or as a USB host for connection to peripherals. Combined with the integrated segmented LCD driver for patient-readout displays and 12-bit ADC for vital-sign sensor front-ends, this part consolidates multiple functions onto one IC. The 32KB SRAM handles USB CDC buffers and waveform storage; ECC Flash ensures bit-error protection for stored calibration data.
Được đề xuất
Automotive Body Controller (AEC-Q100 variant)
AEC-Q100 qualified variants of the PIC24FJ 'GU4/GL4' family target automotive body controllers, instrument clusters with segmented displays, and lighting in sub-zones. The integrated LCD driver drives dashboard tell-tales, the USB controller supports diagnostic dongles, and CIPs handle LIN, PWM fan control, and switch-matrix scanning. The -40C to +125C temperature range and automotive-grade qualification make this family suitable for cabin electronics. Choose the automotive-grade ordering code (consult Microchip ordering info) for production deployment.
Được đề xuất
Consumer Appliance with Secure OTA Firmware
Connected appliances such as coffee machines, air purifiers, and smart thermostats benefit from the dual-partition Flash for safe OTA firmware upgrades without bricking the device. The PIC24FJ128GU405-E/M4's USB controller enables smartphone-app commissioning via USB OTG, while the LCD driver shows status and control menus. The Microchip AN1388 bootloader library implements the A/B partition swap, and EEPROM emulation in Flash removes the need for an external EEPROM IC for user settings storage.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ128GU405-E/M4 — 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 | PIC24FJ128GL405-I/M4 | PIC24FJ128GL405-E/PT | PIC24FJ128GL405-I/PT | PIC24FJ128GL406-I/PT | PIC24FJ128GL410T-I/PT |
|---|---|---|---|---|---|---|
| Package | 48-UQFN (M4) 6x6 mm | 48-UQFN (M4) 6x6 mm - same | 48-UQFN (M4) 6x6 mm - same | 48-UQFN (M4) 6x6 mm - same | 48-UQFN (M4) 6x6 mm - same | 48-UQFN (M4) 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 128 KB - same | 128 KB - same | 128 KB - same | 256 KB (+100%) | 1 MB (+700%) |
| SRAM | 32 KB | 32 KB - same | 32 KB - same | 32 KB - same | 32 KB - same | 64 KB (+100%) |
| USB Controller | Full-Speed USB 2.0 | None | None | None | None | None |
| LCD Driver | Yes (segmented) | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same |
| Dual-Partition OTA Flash | Yes | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) - same | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Maximum Clock | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same | 32 MHz / 16 MIPS - same |
Bảo phân biệt quan trọng
- Integrated USB 2.0 Full-Speed controller (vsPIC24FJ128GL405-I/M4)
- Dual-partition Flash for OTA updates (vsPIC24FJ128GA106-I/PT)
- Extended temperature grade -40C to +125C (vsPIC24FJ128GL405-I/M4)
Ghi chú thiết kế
Route the USB D+ and D- traces as a 90-ohm differential pair with continuous ground reference on the layer beneath. Keep the differential pair length-matched within 150 mil. Place the USB ESD protection diode (e.g., USBLC6-2SC6) within 3 mm of the USB connector. According to Microchip's USB hardware design guide, inadequate impedance control causes USB compliance test failures.
Place a 100 nF ceramic decoupling capacitor within 2 mm of each VDD pin, plus a 4.7 uF bulk capacitor near the MCU. The PIC24FJ128GU405-E/M4 has multiple VDD pins (pin 6, pin 44) that each require their own decoupling. The exposed pad (pin 48) MUST be soldered to a ground plane for thermal dissipation and electrical reference.
When implementing OTA updates via dual-partition Flash, ensure firmware clears all RAM and peripheral states before jumping to the new partition, otherwise stale interrupt vectors or CIP states can crash the device. Microchip application note AN1388 provides reference bootloader code that handles the A/B swap correctly. Always test OTA rollback paths before production deployment.
For the 48-pin UQFN (M4) 6x6 mm package, use a land pattern with 0.4 mm pitch QFN pads and a central thermal pad (3.5x3.5 mm recommended). Per IPC-7351, the UQFN land pattern requires non-solder-mask-defined pads on the central exposed pad to ensure proper thermal and electrical connection. Stencil aperture reductions of 70-80% on the central pad help prevent solder voiding.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. AEC-Q100 qualified variants available within the PIC24FJ GU4/GL4 family - confirm specific ordering code for automotive deployment. Lead-free and halogen-free packaging standard.
