PIC24FJ64GU202T-I/SO - 16-bit 32MHz USB MCU, 64KB Flash | Microchip
MPN： PIC24FJ64GU202T-I/SO ✓ 啟用中PIC24FJ64GU202T-I/SO 概覽
A 16-bit microcontroller (MCU) is a programmable logic device with a 16-bit data path and instruction word that sits between simple 8-bit microcontrollers and full 32-bit ARM Cortex-M parts. The PIC24F sits in the broader hierarchy of microcontroller -> embedded controller -> semiconductor, where it offers more computational headroom, larger memory, and richer peripherals than 8-bit parts at the cost of slightly larger silicon and more sophisticated power sequencing. The PIC24FJ64GU202 is part of Microchip's 'GP2/GU2' sub-family, distinguished by its integrated USB 2.0 transceiver, hardware crypto engine on select variants, and a wide 2.0 V to 3.6 V VDD range that simplifies single-cell Li-ion and two-AA designs.
Key differentiating features include 20 general-purpose I/O pins grouped across multiple ports, a 10-bit ADC with multiple conversion trigger sources, multiple UART/SPI/I2C peripherals, hardware RTCC, and Configurable Logic Cells (CLC) that implement glue logic in firmware-free hardware. The CLCs, 16-bit PWM, and quadrature encoder interface free the CPU from bit-banging tasks, a hallmark of the 'Core Independent Peripherals' (CIPs) philosophy.
Technically, the GU2 family uses a 16-bit modified Harvard CPU with 32 MHz oscillator and a 2-cycle system clock, paired with on-chip FRC accuracy suitable for USB without an external crystal in some configurations. The integrated USB 2.0 Full-Speed transceiver supplies Host, Device, and OTG roles, with internal pull-up/pull-down resistors configurable in firmware. The CIPs - including CLC, MCCP, 16-bit PWM, and 32-bit CRC - run without CPU intervention, freeing MIPS for application code.
Typical applications include USB HID peripherals (keyboards, mice, custom HID), USB-to-UART bridges, USB charging controllers with host mode, low-power sensor data loggers, and portable medical or industrial instrumentation that benefits from XLP nanoamp sleep current. The 28-SOIC footprint supports hand-solderable prototypes and through-hole-friendly DFA.
When designing with this part, pay attention to VDD-VUSB supply topology: the USB transceiver requires a regulated 3.3 V, and decoupling must follow Microchip's 28-pin SOIC reference layout to pass USB-IF compliance. The XLP deep-sleep mode requires all wake sources to be re-armed on every wake cycle - firmware state machines should be designed around the Sleep/Wake peripheral library.
This page synthesizes distributor pricing across DigiKey and Mouser, drop-in same-family alternatives in the same 28-SOIC footprint, and practical design notes not collocated in the manufacturer datasheet.
直接替換替代品，適用於 PIC24FJ64GU202T-I/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24FJ64GU202T-I/SO （相同外形與佔位） — 差異在於 Package, ADC, Operating Temperature, MSL Level, I/O Pins.
PIC24FJ64GU202-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ64GU202-I/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ64GU202T-E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ64GB202T-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GU202T-I/ML
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ64GA702T-I/SO
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ64GU202T-I/SO 最大額定值與電氣特性
| Core | PIC24F 16-bit |
| Architecture | Modified Harvard |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 64 KB (22K x 24) with ECC |
| SRAM | 8 KB |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| USB | USB 2.0 Full-Speed Host/Device/OTG |
| I/O Pins | 20 |
| 封裝 | 28-pin SOIC |
| 工作溫度 | -40C to +85C (industrial, /I suffix) |
| ADC | 10-bit SAR |
| Communication | UART, SPI, I2C |
| PWM Channels | Multiple 16-bit |
| Timers | Multiple 16-bit with RTCC |
| Core Independent Peripherals (CIPs) | CLC, MCCP, 32-bit CRC, configurable logic |
| Sleep Current (XLP) | Few hundred nA with RAM retention |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| MSL 等級 | MSL1 |
| ECC Support | Yes (Flash ECC) |
PIC24FJ64GU202T-I/SO 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active-low |
| 腳位 2 | RA0 — Port A bit 0 / analog input |
| 腳位 3 | RA1 — Port A bit 1 / analog input |
| 腳位 4 | RP4/RB4 — Remappable peripheral pin / Port B bit 4 |
| 腳位 5 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| 腳位 6 | VSS — Ground reference |
| 腳位 7 | OSCI/CLKI/RA2 — Crystal oscillator input or external clock |
| 腳位 8 | OSCO/CLKO/RA3 — Crystal oscillator output |
| 腳位 9 | D+ — USB D+ data line |
| 腳位 10 | D- — USB D- data line |
| 腳位 11 | VBUS — USB VBUS sense input |
| 腳位 12 | VUSB — USB transceiver supply (3.3 V regulated) |
| 腳位 13 | RP9/RB9 — Remappable peripheral pin / Port B bit 9 |
| 腳位 14 | RP10/RB10 — Remappable peripheral pin / Port B bit 10 |
| 腳位 15 | RP11/RB11 — Remappable peripheral pin / Port B bit 11 |
| 腳位 16 | VSS — Ground reference |
| 腳位 17 | VDD — Positive supply voltage (2.0 V to 3.6 V) |
| 腳位 18 | RP12/RB12 — Remappable peripheral pin / Port B bit 12 |
| 腳位 19 | RP13/RB13 — Remappable peripheral pin / Port B bit 13 |
| 腳位 20 | PGED3/RB0 — Programming data / Port B bit 0 |
| 腳位 21 | PGEC3/RB1 — Programming clock / Port B bit 1 |
| 腳位 22 | RP1/RB1 — Remappable peripheral pin / Port B bit 1 |
| 腳位 23 | RP2/RB2 — Remappable peripheral pin / Port B bit 2 |
| 腳位 24 | RP3/RB3 — Remappable peripheral pin / Port B bit 3 |
| 腳位 25 | RA4 — Port A bit 4 |
| 腳位 26 | RA5 — Port A bit 5 |
| 腳位 27 | RA6 — Port A bit 6 |
| 腳位 28 | RA7 — Port A bit 7 |
典型應用
PIC24FJ64GU202T-I/SO 適用於 6 應用s: USB HID Peripheral (Keyboard/Mouse/Custom HID), USB-to-UART Bridge and Serial Adapter, Low-Power Sensor Data Logger, Industrial USB Instrumentation Front-End, Portable Medical and Wellness Device, USB Charging Controller with Host Mode.
USB HID Peripheral (Keyboard/Mouse/Custom HID)
The PIC24FJ64GU202T-I/SO's integrated USB 2.0 Full-Speed transceiver supporting Host, Device, and On-The-Go roles makes it a natural fit for USB Human Interface Device peripherals such as keyboards, mice, game controllers, and custom HID devices. The 16 MIPS CPU easily services USB interrupt endpoints while still running key-scanning or sensor-fusion firmware. With 64 KB of ECC Flash and 8 KB of SRAM, designers can embed USB stacks plus application code without external memory. The XLP sleep mode dropping current to a few hundred nanoamps extends battery life in wireless HID peripherals - critical for multi-year coin-cell designs where every microamp counts.
推薦
USB-to-UART Bridge and Serial Adapter
The PIC24FJ64GU202T-I/SO's USB 2.0 Device mode plus dual UART peripherals make it ideal for USB-to-serial bridge designs replacing legacy RS-232 ports on laptops. The internal FRC oscillator is accurate enough for USB Full-Speed signaling without an external crystal in many configurations, simplifying BOM. The 8 KB SRAM buffers full-speed UART traffic at 921600 baud with headroom for protocol translation. The 28-SOIC package fits hand-solderable prototypes. XLP sleep modes let the bridge drop to nanoamp idle when no UART activity is detected, useful for solar-powered IoT gateways.
推薦
Low-Power Sensor Data Logger
The PIC24FJ64GU202T-I/SO's eXtreme Low Power technology - sleep current down to a few hundred nanoamps with full SRAM and interrupt context retention - enables multi-year battery life on coin cells, making it ideal for environmental sensor loggers, asset trackers, and remote monitoring nodes. The 10-bit ADC samples temperature, humidity, or analog sensors while the CPU stays asleep until threshold-crossing interrupts wake it. The 64 KB Flash stores months of timestamped readings with the hardware 32-bit CRC validating each block. The 8 KB SRAM buffers raw sensor bursts before flash commit, avoiding wear from frequent small writes.
推薦
Industrial USB Instrumentation Front-End
The PIC24FJ64GU202T-I/SO's industrial -40C to +85C temperature range, ECC Flash, and USB Host mode (for connecting USB test instruments) suit industrial process-control front-ends and USB data-acquisition modules. Core Independent Peripherals like Configurable Logic Cells (CLC) and 16-bit PWM offload bit-banging tasks from the CPU, freeing 16 MIPS for protocol parsing. The dual UART and SPI peripherals interface to RS-485 transceivers and ADC front-ends, while USB Host mode can read external USB flash drives for data export. ECC Flash protects against soft errors from EMI common on factory floors.
推薦
Portable Medical and Wellness Device
The PIC24FJ64GU202T-I/SO's XLP nanoamp sleep modes, integrated USB for charging and data sync, and wide 2.0 V to 3.6 V supply range support portable medical devices such as blood-pressure monitors, pulse oximeters, and digital thermometers. The 10-bit ADC reads sensor analog signals with 1 mV resolution, sufficient for vital-sign measurements. Hardware encryption and ECC Flash protect patient data integrity on the device. The 28-SOIC package fits into slim handheld enclosures. Designers can run USB Device mode for charging/data sync and UART/SPI for sensor interfaces from the same chip.
推薦
USB Charging Controller with Host Mode
The PIC24FJ64GU202T-I/SO's USB 2.0 Host mode with VBUS drive capability and OTG role switching supports USB charging controllers, USB battery packs, and embedded host peripherals that negotiate charging current with attached devices. The 16 MIPS CPU runs USB Host stack plus battery-monitoring firmware. Multiple PWM channels drive LED status indicators and buck-boost converter control loops. ECC Flash prevents firmware corruption that could brick a $20K medical cart. The 8 KB SRAM handles USB Host enumeration tables for connected devices.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ64GU202T-I/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24FJ64GU202-I/SO | PIC24FJ64GU202T-E/SO | PIC24FJ64GB202T-I/SO | PIC24FJ32GU202T-I/ML | PIC24FJ64GA702T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-QFN - different | 28-SOIC - same |
| Flash | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| USB | USB 2.0 FS Host/Device/OTG | USB 2.0 FS Host/Device/OTG | USB 2.0 FS Host/Device/OTG | No USB | USB 2.0 FS Host/Device/OTG | No USB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Operating Temp | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Supply 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 | 2.0 V to 3.6 V |
主要差異化特點
- Integrated USB 2.0 Full-Speed Host/Device/OTG with on-chip transceiver (對比PIC24FJ64GB202T-I/SO)
- Extended temperature option available for harsh environments (對比PIC24FJ64GU202T-E/SO)
- eXtreme Low Power sleep to a few hundred nanoamps with full RAM retention (對比PIC24FJ64GA702T-I/SO)
設計說明
The USB transceiver requires a regulated 3.0 V to 3.6 V supply on the VUSB pin even when USB is not in use, because leakage through D+/D- pull-ups can otherwise disturb internal logic. Add a 3.3 V LDO such as MCP1700 or MCP1640 between VDD and VUSB when operating from a single Li-ion cell. Decouple VDD with 100 nF and 10 uF ceramic placed within 5 mm of the pin; the 28-SOIC layout in datasheet DS30010030 Section 2.4 specifies exact capacitor placement for USB-IF compliance.
Follow Microchip's 28-SOIC USB reference layout for D+/D- trace routing: 90-ohm differential impedance, no stubs, and a continuous ground plane beneath the traces. D+ and D- traces should be length-matched within 0.5 mm and free of vias. Place the 100 nF VUSB decoupling capacitor within 2 mm of the VUSB pin. Skipping this layout discipline is the most common cause of USB-IF compliance failures and radiated-emission issues.
Do not confuse the 'T' suffix (Tape and Reel) with a temperature grade. The 'I' in 'I/SO' denotes the industrial -40C to +85C operating range, while 'E' denotes extended -40C to +125C. Mixing the two codes in production orders has caused field failures in automotive-adjacent designs. Also, the XLP deep-sleep mode requires re-arming all wake sources on every wake cycle - firmware state machines should be designed around the Sleep/Wake Peripheral Library (PLIB) calls rather than busy-wait loops, or sleep current will not drop to nanoamp range.
合規資訊
RoHS compliant per Microchip product page. Industrial temp grade only; extended -40C to +125C requires 'E' suffix variant. AEC-Q100 not qualified.
