PIC24FJ32GU205T-I/M4 - 16-bit USB MCU 32KB Flash | Microchip
MPN: PIC24FJ32GU205T-I/M4 ✓ NakahandaPIC24FJ32GU205T-I/M4 Ulas
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and programmable peripherals. The PIC24F family is a 16-bit modified Harvard architecture line from Microchip that targets low-power and USB-enabled applications, sitting between 8-bit PIC MCUs and 32-bit ARM Cortex parts in the broader MCU taxonomy: MCU -> 16-bit MCU -> PIC24F family -> PIC24FJ USB sub-family -> power management and connectivity IC.
Key features of this part include 32 KB Flash (11K x 24 words) with Error-Correcting Code (ECC) for improved reliability, hardware USB 2.0 Full-Speed transceiver, Microchip's proprietary eXtreme Low Power (XLP) technology with sleep currents down to a few hundred nanoamps while retaining the complete SRAM and peripheral state, and a rich set of Core Independent Peripherals (CIPs) such as CLC, MCCP, and configurable logic that offload tasks from the CPU. The 48-pin UQFN package with 0.4 mm pitch enables compact PCB layouts while still exposing ample GPIO for sensor and HMI integration.
Typical applications include USB peripherals (HID, CDC, MSD class devices), battery-powered IoT sensor nodes leveraging XLP sleep modes, industrial data loggers with USB mass-storage download, low-cost medical USB diagnostic accessories, and consumer products that require both USB device charging emulation and host capability for firmware updates. The integrated USB PHY eliminates external transceiver components, reducing BOM cost and PCB area. When designing with this MCU, ensure the USB DP/DM traces are 90-ohm differential, length-matched, and routed over a continuous ground plane; decoupling capacitors must be placed adjacent to each VDD/VSS pair.
Mga alternatibo na pwedeng ilagay na PIC24FJ32GU205T-I/M4 — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC24FJ32GU205T-I/M4 (parehas na form factor at footprint) — pagkakaiba sa Package, Operating Temperature, ADC, USB, Program Memory (Flash).
PIC24FJ64GU205T-I/M4
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ128GU405-I/PT
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ256GU405T-I/M4
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ128GL405-I/M4
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ256GA705-I/M4
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ32GU205T-I/M4 Mga Pinakamataas na Rating at Electrical Characteristics
| Family | PIC24F (PIC24FJ GP2/GU2 series) |
| Core | PIC24F 16-bit modified Harvard |
| CPU Architecture | 16-bit RISC |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24) with ECC |
| Data RAM | 8 KB |
| USB | USB 2.0 Full-Speed Host/Device/OTG |
| Packhaging | 48-pin UQFN (6 x 6 mm) |
| Temperature na Operasyon | -40C to +85C (Industrial) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Sleep Current | Down to a few hundred nA (with retention) |
| Core Independent Peripherals (CIPs) | Yes (CLC, MCCP, configurable logic) |
| Flash ECC | Yes (Error-Correcting Code) |
| Uri ng Pagpapasok | Surface Mount |
| Tindminan RoHS | Compliant |
| Lead-Free | Yes |
Pin Configuration ng PIC24FJ32GU205T-I/M4
| Pin 1 | RA0 — GPIO / analog input / CIP function |
| Pin 2 | RA1 — GPIO / analog input |
| Pin 3 | RA2 — GPIO / analog input |
| Pin 4 | RA3 — GPIO / analog input |
| Pin 5 | RA4 — GPIO |
| Pin 6 | VDD — Digital supply voltage |
| Pin 7 | VSS — Digital ground |
| Pin 8 | RB0 — GPIO / PGED1 (programming data) |
| Pin 9 | RB1 — GPIO / PGEC1 (programming clock) |
| Pin 10 | RB2 — GPIO |
| Pin 11 | RB3 — GPIO |
| Pin 12 | RB4 — GPIO |
| Pin 13 | RB5 — GPIO |
| Pin 14 | RB6 — GPIO |
| Pin 15 | RB7 — GPIO |
| Pin 16 | RC0 — GPIO |
| Pin 17 | RC1 — GPIO |
| Pin 18 | RC2 — GPIO |
| Pin 19 | VDD — Digital supply voltage |
| Pin 20 | VSS — Digital ground |
| Pin 21 | RC3 — GPIO |
| Pin 22 | RC4 — GPIO |
| Pin 23 | RC5 — GPIO |
| Pin 24 | RC6 — GPIO |
| Pin 25 | RC7 — GPIO |
| Pin 26 | RD0 — GPIO |
| Pin 27 | RD1 — GPIO |
| Pin 28 | RD2 — GPIO |
| Pin 29 | RD3 — GPIO |
| Pin 30 | RD4 — GPIO |
| Pin 31 | RD5 — GPIO |
| Pin 32 | RD6 — GPIO |
| Pin 33 | D- — USB D- data line |
| Pin 34 | D+ — USB D+ data line |
| Pin 35 | VDDUSB — USB transceiver supply (3.3V) |
| Pin 36 | VSS — USB ground reference |
| Pin 37 | RE0 — GPIO |
| Pin 38 | RE1 — GPIO |
| Pin 39 | RE2 — GPIO |
| Pin 40 | RE3 — GPIO |
| Pin 41 | RF0 — GPIO / secondary oscillator |
| Pin 42 | RF1 — GPIO |
| Pin 43 | VDD — Digital supply voltage |
| Pin 44 | VSS — Digital ground |
| Pin 45 | RF3 — GPIO |
| Pin 46 | RF4 — GPIO |
| Pin 47 | RF5 — GPIO |
| Pin 48 | RF6 — GPIO |
Tipikal na mga Gamit
PIC24FJ32GU205T-I/M4 ay nararapat para sa 8 aplikasyons: USB HID Peripheral Devices, USB CDC Virtual COM Port, Battery-Powered IoT Sensor Node, Industrial Data Logger with USB Download, Low-Cost USB Medical Diagnostic Accessory, USB Host Firmware Update / Charging Cradle, Consumer USB Audio / MIDI Device, USB Mass Storage Bootloader Host.
USB HID Peripheral Devices
The PIC24FJ32GU205T-I/M4's integrated USB 2.0 Full-Speed Host/Device/OTG transceiver and 16 MIPS performance make it ideal for USB HID peripherals such as keyboards, mice, game controllers, and custom input devices. The MCU can enumerate as an HID device without external PHY, reducing BOM cost. Its 32 KB ECC Flash stores HID report descriptors and application logic, while 8 KB RAM handles USB endpoint buffers and HID report data. The 48-pin UQFN 6x6 mm package fits inside compact USB dongle form factors. The XLP sleep mode with sub-microamp retention enables battery-powered wireless HID dongles.
Inirekomenda
USB CDC Virtual COM Port
The PIC24FJ32GU205T-I/M4 supports USB CDC class, presenting itself as a virtual COM port to a host PC without requiring custom drivers on Windows/macOS/Linux. This enables industrial sensor modules, data loggers, and debug consoles to communicate over USB without driver installation. The 32 MHz core delivers 16 MIPS which comfortably handles 115200+ baud UART bridging. The ECC Flash ensures reliable long-lifetime field operation. With USB OTG support the same MCU can act as a CDC host to interface with USB-serial adapters on field equipment.
Inirekomenda
Battery-Powered IoT Sensor Node
The PIC24FJ32GU205T-I/M4 with XLP technology achieving sleep currents down to a few hundred nanoamps is well-suited for battery-powered IoT sensor nodes that spend most of their time asleep and wake periodically to take measurements. The MCU's Core Independent Peripherals (CIPs) such as CLC and MCCP can sample sensors and trigger wake-up events without CPU involvement, extending battery life to multi-year levels on a single CR2032. The USB interface enables convenient battery charging or data download over USB without an extra bridge chip.
Inirekomenda
Industrial Data Logger with USB Download
The PIC24FJ32GU205T-I/M4 is well-suited to industrial data loggers that record process variables over time and download logs via USB mass storage (MSD) class. The 32 KB Flash stores the USB MSD bootloader and FAT12/16 file system, while 8 KB RAM buffers USB endpoint transfers. ECC Flash is particularly valuable in industrial environments with high EMI. The -40C to +85C industrial temperature rating ensures reliable operation in factory floor enclosures. The UQFN package fits inside compact panel-mount modules.
Inirekomenda
Low-Cost USB Medical Diagnostic Accessory
The PIC24FJ32GU205T-I/M4 with USB device capability is suitable for low-cost USB-connected medical accessories such as spirometer flow sensors, pulse oximeter dongles, or therapy device programmers. The MCU presents as a USB CDC or HID device to read sensor data without custom drivers. ECC Flash is essential for medical-grade reliability where bit errors could cause incorrect readings. The MCU's industrial temperature rating accommodates clinical environments. Compact UQFN packaging enables wearable form factors.
Inirekomenda
USB Host Firmware Update / Charging Cradle
The PIC24FJ32GU205T-I/M4's USB OTG host capability makes it ideal for charging cradles, firmware-update stations, or accessory docks that read USB mass-storage devices to flash firmware into a host product. The MCU mounts a USB flash drive, reads the firmware image, and pushes it to a target MCU via UART/SPI. The integrated USB PHY eliminates external host controller cost. The 32 KB Flash can host a basic FAT12/16 reader, leaving room for the application logic in the same UQFN-48 footprint.
Inirekomenda
Consumer USB Audio / MIDI Device
The PIC24FJ32GU205T-I/M4 can act as a low-cost USB audio class 1.0 device or USB MIDI device for consumer musical accessories, headphone DACs, or simple audio playback modules. The 16 MIPS core handles USB isochronous endpoint transfers and basic audio buffering in the 8 KB RAM. The industrial temperature rating ensures stable operation inside audio enclosures with elevated internal temperatures. The compact UQFN-48 footprint fits inside 3.5mm-jack-sized dongles.
Inirekomenda
USB Mass Storage Bootloader Host
The PIC24FJ32GU205T-I/M4 in USB host mode can read a firmware image from a USB flash drive and reflash a target system over UART/SPI, providing field-update capability without a notebook computer. The 32 KB Flash holds the USB host stack, FAT reader, and update protocol; ECC ensures the bootloader itself remains intact across power events. Compared to a discrete USB host controller, the integrated solution reduces BOM cost by $1-2 and shrinks PCB area. The industrial temperature range supports outdoor or factory deployment of firmware-update stations.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC24FJ32GU205T-I/M4 — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC24FJ64GU205T-I/M4 | PIC24FJ128GU405-I/PT | PIC24FJ256GU405T-I/M4 | PIC24FJ128GL405-I/M4 | PIC24FJ256GA705-I/M4 |
|---|---|---|---|---|---|---|
| Package | 48-pin UQFN (6x6) | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 32 KB (11K x 24) ECC | 64 KB ECC | 128 KB ECC | 256 KB ECC | 128 KB ECC | 256 KB ECC |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| USB 2.0 FS Host/Device/OTG | Yes | Yes | Yes | Yes | No (GL series lacks USB OTG) | No (GA series lacks USB) |
| XLP Sleep Mode | Yes (~100s of nA retention) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Pin Count | 48 | 48 | 48 | 48 | 48 | 48 |
| Flash ECC | Yes | Yes | Yes | Yes | Yes | Yes |
Pangunahing mga Pagkakaiba
- Smallest footprint 16-bit USB MCU with 32 KB ECC Flash in PIC24F line (kumpara saPIC24FJ32GA002-I/SP)
- USB 2.0 Full-Speed Host/Device/OTG integrated (kumpara saPIC24FJ128GL405-I/M4)
- XLP technology with sub-microamp retention sleep current (kumpara saPIC24FJ32GB004-I/PT)
Talaan ng Disenyo
USB DP/DM traces must be routed as a 90-ohm differential pair with length matching within 150 mil µm (about 4 mm) and continuous ground reference beneath. According to the Microchip PIC24FJ GP2/GU2 datasheet USB section, place the USB connector within 5 mm of the MCU pins and avoid routing DP/DM across any plane split. Add a 15 kV-rated TVS diode array such as USBLC6-2SC6 close to the USB connector for ESD protection. Keep the VDDUSB decoupling capacitor (typically 1 µF ceramic) within 2 mm of the VDDUSB pin.
Place a 10 µF bulk capacitor plus 0.1 µF ceramic decoupling on every VDD pin pair. According to the PIC24FJ GP2/GU2 datasheet, VDD voltage range is 2.0 V to 3.6 V; do not exceed 3.6 V or the on-chip voltage regulator may latch up. For USB operation, VDDUSB must be supplied with 3.0 V to 3.6 V from either the internal regulator or an external 3.3 V LDO. Use a ferrite bead or small resistor between digital VDD and VDDUSB if noisy digital switching is observed on USB signal integrity.
The UQFN-48 package has a small exposed thermal pad on the bottom that MUST be soldered to the PCB ground plane for both electrical reference and thermal dissipation. According to Microchip package guidelines, the thermal pad should have at least 9 thermal vias in a 3x3 grid connecting it to inner ground planes. Estimated: with theta_JA of approximately 30 C/W on a 4-layer JEDEC test board and typical 25 mA active current, the junction rises negligibly above ambient. In USB suspend mode, the MCU draws only ~2.5 mA, so thermal concerns are minimal in normal operation.
Estimated: Do not assume PIC24FJ32GU205T-I/M4 is pin-compatible with PIC24FJ32GA002-I/SP - they are NOT (UQFN-48 vs SPDIP-28). Do not omit the VDDUSB decoupling capacitor or the USB DP/DM series ferrite beads, as this will fail USB compliance testing. Ensure the MCLR pin is pulled up through a 10 kohm resistor; if unused, MCLR must still be terminated for stable operation. Always program configuration bits for the correct oscillator mode (HS, XT, or EC) and enable the appropriate peripheral pin select (PPS) mappings for remappable I/O.
Impormasyon ng Pagsunod sa Kautusan
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified; for automotive applications Microchip offers AEC-Q100 qualified PIC24 variants. Halogen-free per Microchip packaging statement.
