PIC24FJ32GU203-E/M5 - 16-bit USB MCU, 32KB Flash | Microchip
部品番号: PIC24FJ32GU203-E/M5 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.32 | $4.32 |
| 10 | $3.78 | $37.80 |
| 100 | $3.12 | $312.00 |
| 500 | $2.74 | $1,370.00 |
| 1,000 | $2.45 | $2,450.00 |
PIC24FJ32GU203-E/M5 概要
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), working memory (RAM), and a configurable set of peripheral interfaces on one die. PIC24F devices sit in the broader hierarchy as 16-bit microcontrollers -> microcontrollers -> embedded processors -> semiconductors. The '24F' series uses a modified Harvard architecture with a 16-bit datapath and 24-bit instruction word, delivering higher code density and deterministic interrupt latency than 8-bit MCUs while remaining lower power than 32-bit ARM Cortex-M parts at comparable MHz. The 'FJ' suffix denotes Flash program memory with JTAG/ICD debugging support, and 'GU2' indicates the USB-equipped variant.
Key differentiating features of the PIC24FJ32GU203 include: 32 KB ECC Flash (single-bit error correction for automotive-grade reliability), 8 KB RAM, USB 2.0 Full-Speed On-The-Go (Host/Device/OTG), 5x Multi-Capture/Compare/PWM (MCCP) modules, 6x general-purpose timers, 4x Configurable Logic Cells (CLC), 2x DMA channels, 3x analog comparators, 2x I2C, 2x SPI, and 2x UART. The 'E' suffix specifies the extended -40C to +125C operating temperature grade.
The architecture is a 16-bit pipelined PIC24 CPU core with hardware multiply/divide, executing most instructions in one cycle. The CIP (Core Independent Peripheral) blocks - CLC, MCCP, and DMA - allow events to be processed without CPU intervention, freeing the core for higher-level tasks and reducing active-mode power. XLP technology enables deep sleep retention currents measured in hundreds of nA, ideal for battery-powered IoT edge nodes.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), USB-to-UART bridges, USB chargers, low-power IoT sensor nodes, USB medical device interfaces, USB audio class devices, and industrial data loggers with USB connectivity. The wide temperature range supports automotive and industrial deployments.
When designing with this MCU, reserve pin D+/D- (typically RB14/RB15 on the 36-pin UQFN) for USB and ensure an external 48 MHz primary oscillator configuration is selected for USB operation; the internal FRC is too inaccurate for USB Full-Speed signalling. The 5x5 mm UQFN package uses an exposed thermal pad that must be soldered to a copper pour for thermal and electrical performance.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not found in the manufacturer datasheet alone - providing practical decision support for engineers sourcing USB-capable 16-bit PIC24 microcontrollers.
ドロップイン代替品: PIC24FJ32GU203-E/M5 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC24FJ32GU203-E/M5 （同一形状・フットプリント） — 相違点: Package, Core Architecture, Mounting Type, USB, I/O Pins.
クイック比較ツール — 並列比較する代替部品を選択:
PIC24FJ32GU203-I/M5
✅ ドロップイン✓ 在庫あり
$2.13 / 個
データシートを見る →PIC24FJ32GU203T-E/M5
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC24FJ32GU203-I/M5
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.13 / 個
データシートを見る →PIC24FJ32GP203-I/M5
✅ ドロップイン✓ 在庫あり
$1.89 / 個
データシートを見る →PIC24FJ32GU202-I/M5
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC24FJ32GU203-E/M5 最大定格＆電気的特性
| Core | PIC24 (16-bit modified Harvard) |
| CPU Speed (max) | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24) with ECC |
| RAM | 8 KB |
| USB | USB 2.0 Full-Speed Host/Device/OTG |
| I2C | 2 |
| SPI | 2 |
| UART | 2 |
| MCCP (Capture/Compare/PWM) | 5 |
| General-Purpose Timers | 6 |
| Analog Comparators | 3 |
| Configurable Logic Cells (CLC) | 4 |
| DMA Channels | 2 |
| Operating Temperature (E grade) | -40C to +125C |
| パッケージ | 36-pin UQFN (5x5 mm) |
| 実装タイプ | Surface Mount |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Process Technology | CMOS |
| RoHS ステータス | Compliant |
PIC24FJ32GU203-E/M5 ピン構成
| ピン 1 | RA0 — GPIO/AN0/CVD |
| ピン 2 | RA1 — GPIO/AN1/CVD |
| ピン 3 | RA2 — GPIO/AN2/CVD |
| ピン 4 | RA3 — GPIO/AN3/CVD |
| ピン 5 | RA4 — GPIO/AN4/CVD |
| ピン 6 | RA5 — GPIO/AN5/CVD |
| ピン 7 | RA6 — GPIO/AN6/CVD |
| ピン 8 | RA7 — GPIO/AN7/CVD |
| ピン 9 | RB0 — GPIO/PGED1 |
| ピン 10 | RB1 — GPIO/PGEC1 |
| ピン 11 | RB2 — GPIO/AN8/CVD |
| ピン 12 | RB3 — GPIO/AN9/CVD |
| ピン 13 | RB4 — GPIO/AN10/CVD |
| ピン 14 | RB5 — GPIO/AN11/CVD |
| ピン 15 | VSS — Ground |
| ピン 16 | RB6 — GPIO/PGC2/ICSPCLK |
| ピン 17 | RB7 — GPIO/PGD2/ICSPDAT |
| ピン 18 | RB8 — GPIO |
| ピン 19 | RB9 — GPIO |
| ピン 20 | RB10 — GPIO |
| ピン 21 | RB11 — GPIO |
| ピン 22 | RB12 — GPIO |
| ピン 23 | RB13 — GPIO |
| ピン 24 | RB14 — GPIO/USB D- |
| ピン 25 | RB15 — GPIO/USB D+ |
| ピン 26 | RC0 — GPIO/OSC1 |
| ピン 27 | RC1 — GPIO/OSC2 |
| ピン 28 | RC2 — GPIO |
| ピン 29 | VDD — Power supply 2.0 V to 3.6 V |
| ピン 30 | RC3 — GPIO |
| ピン 31 | RC4 — GPIO |
| ピン 32 | RC5 — GPIO |
| ピン 33 | RC6 — GPIO |
| ピン 34 | RC7 — GPIO |
| ピン 35 | RC8 — GPIO |
| ピン 36 | MCLR — Master Clear / Reset |
主な用途
PIC24FJ32GU203-E/M5 の用途: 8 件s: USB HID Peripherals (Keyboard, Mouse, Custom Input), USB-to-UART Communication Bridge, Battery-Powered IoT Sensor Nodes, USB Medical Device Interfaces, USB Charging and Power-Bank Controllers, Industrial Data Loggers with USB Interface, USB Audio Class Devices (Headset, Speaker, Microphone), Automotive USB Charging Ports / Infotainment Accessories.
USB HID Peripherals (Keyboard, Mouse, Custom Input)
The PIC24FJ32GU203 fits USB HID designs because its integrated USB 2.0 Full-Speed controller with on-chip transceiver eliminates external PHY chips. With 32 KB Flash and 8 KB RAM, the MCU easily runs Microchip's USB HID stack plus a HID report parser, key debouncing logic, and bootloader. Placed as the sole silicon between the USB connector and the matrix-scan GPIOs (typically RA0-RA7, RB0-RB5), it consumes negligible active power and supports USB suspend/resume. The 36-UQFN (5x5 mm) footprint suits compact keyboards and mice where PCB area is at a premium.
おすすめ
USB-to-UART Communication Bridge
For USB-to-UART bridge designs, the PIC24FJ32GU203's USB 2.0 Full-Speed plus dual UART peripherals provide a hardware CDC-ACM implementation with no external USB-to-serial chip required. The MCU's 32 KB ECC Flash accommodates Microchip's USB CDC class driver plus command-line firmware, and 8 KB RAM handles dual UART buffers. Placed between the USB-B connector and an RS-232/RS-485 transceiver (e.g., MAX3221 or MAX3485), it achieves 12 Mbps Full-Speed USB throughput. The E temperature grade suits industrial gateways and factory automation where ambient temperatures approach 100C.
おすすめ
Battery-Powered IoT Sensor Nodes
The PIC24FJ32GU203's XLP (eXtreme Low Power) technology with sub-uA sleep currents suits battery-powered IoT sensor nodes that wake periodically to report telemetry over USB. With USB On-The-Go, the node can act as both a USB device (charging/data) and a USB host (sourcing power to peripherals). The 32 KB Flash stores a small RTOS or scheduler plus sensor drivers, and 8 KB RAM supports payload buffering. Placed on a sensor PCB with a CR2032 or Li-ion cell, the MCU keeps total sleep current under 1 uA while still wake-on-USB capable.
おすすめ
USB Medical Device Interfaces
Medical device interfaces benefit from the PIC24FJ32GU203's 32 KB ECC Flash (single-bit error correction increases reliability for clinical environments), 16 MIPS deterministic 16-bit core, and integrated USB 2.0 Full-Speed. The device handles USB communication with a host PC while running signal-conditioning logic for sensors such as blood-pressure cuffs, glucose meters, and pulse oximeters. Placed on a medical-grade PCB, it draws from a regulated 3.3 V rail and exposes I2C for AFE ICs plus USB for data upload. The -40C to +125C E temperature grade supports OR-table electronics.
おすすめ
USB Charging and Power-Bank Controllers
USB charging and power-bank controllers leverage the PIC24FJ32GU203's USB OTG mode plus 5x MCCP channels for battery-management PWM, load-sharing control, and charge-state monitoring. The 32 KB Flash runs state-machine charge algorithms (CC/CV), USB type-C detection logic (via external comparator), and LCD or LED indicator drives. Placed alongside a battery-fuel-gauge IC and MOSFETs, it forms a complete power-bank MCU. The DMA channels offload I2C transactions to the battery gauge, leaving the CPU free for safety timers.
おすすめ
Industrial Data Loggers with USB Interface
Industrial data loggers use the PIC24FJ32GU203 to sample analog/digital signals, store them to internal Flash or external EEPROM, and dump logs via USB to a host PC. The MCU's 4x Configurable Logic Cells (CLC) implement hardware-trigger logic without CPU intervention, 2x DMA channels offload ADC-to-RAM transfers, and the USB module handles file-system enumeration. The E temperature grade tolerates factory-floor ambient temperatures up to +125C. Placed near analog front-ends with proper grounding, it achieves deterministic logging rates suitable for predictive-maintenance applications.
おすすめ
USB Audio Class Devices (Headset, Speaker, Microphone)
USB audio class devices such as headsets, speakers, and microphones benefit from the PIC24FJ32GU203's USB 2.0 Full-Speed controller paired with its 5x MCCP (PWM) channels for direct analog audio drive or LED level-metering. With 32 KB Flash and 8 KB RAM, the MCU runs Microchip's USB Audio Class 1.0 stack plus audio-processing firmware. Placed between a Class-D amplifier or codec and the USB-C connector, it achieves 48 kHz / 16-bit audio streaming. The CLCs handle sample-rate timing without CPU load.
おすすめ
Automotive USB Charging Ports / Infotainment Accessories
Automotive USB charging ports and infotainment accessories operate over the extended -40C to +125C temperature range that the PIC24FJ32GU203-E/M5 specifically supports. The USB module enumerates as a charging downstream port (CDP) or dedicated charging port (DCP), and the MCU monitors BC 1.2 / Type-C handshaking via external comparators. The 32 KB ECC Flash improves data retention in the thermally stressed automotive cabin. Placed near the dashboard USB socket, it handles cable-compensation logic and over-current protection via the MCCP/PWM outputs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC24FJ32GU203-E/M5 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC24FJ32GU203-I/M5 | PIC24FJ32GU203T-E/M5 | PIC24FJ32GP203-I/M5 | PIC24FJ32GU202-I/M5 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-UQFN (5x5) | 36-UQFN (5x5) - same | 36-UQFN (5x5) - same | 36-UQFN (5x5) - same | 36-UQFN (5x5) - same |
| Program Flash | 32 KB ECC | 32 KB ECC | 32 KB ECC | 32 KB ECC | 16 KB ECC (-50%) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) |
| USB | FS Host/Device/OTG | FS Host/Device/OTG | FS Host/Device/OTG | No USB | FS Host/Device/OTG |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| I2C / SPI / UART | 2 / 2 / 2 | 2 / 2 / 2 | 2 / 2 / 2 | 2 / 2 / 2 | 2 / 2 / 2 |
| Approx. Unit Price (qty 1, as of 2026-09-30) | $4.32 | $4.10 (est.) | $4.32 | $3.85 (est.) | $3.95 (est.) |
主な差別化要因
- Extended temperature grade for automotive/industrial （vs PIC24FJ32GU203-I/M5)
- USB Host/Device/OTG integrated （vs PIC24FJ32GP203-I/M5)
- 32 KB ECC Flash vs 16 KB on the GU202 （vs PIC24FJ32GU202-I/M5)
- 5x MCCP + 4x CLC + 2x DMA core-independent peripherals （vs PIC24FJ16MC102-I/SS)
- XLP sub-uA sleep retention （vs PIC24FJ32GA104-I/ML)
設計ノート
Estimated: The 36-UQFN (5x5 mm) package has a center exposed thermal pad (EP) that must be soldered to a ground copper pour for both thermal dissipation and electrical reference. Place a 4x4 via-array (0.3 mm drill, 0.5 mm pitch) in the EP pad, connecting to the inner/ground plane. Without this, junction-to-ambient thermal resistance increases and ground-bounce on USB signals can cause enumeration failures. Keep USB D+/D- traces (RB14/RB15) matched-length within 2 mm and 90 ohm differential impedance.
USB Full-Speed signalling requires an accurate 48 MHz clock. The PIC24FJ32GU203's internal FRC oscillator is not sufficiently accurate for USB and will fail USB compliance tests. Designers must enable the primary oscillator with a 48 MHz crystal (or 12 MHz / 24 MHz with the PLL configured for 48 MHz output) and configure the USB module to use this clock source. Place the crystal within 5 mm of OSC1/OSC2 (RC0/RC1) with guard traces to GND and avoid routing high-frequency signals under the crystal can.
Do not leave VBUS sensing disconnected. The USB module's VBUS pin must be tied through a voltage divider to a GPIO (typically an RBx pin with 5V-tolerant input) so the firmware can detect USB attach/detach events and control D+/D- pull-up resistors. Forgetting VBUS sensing causes the device to enumerate only when 3.3 V is already present, missing proper USB suspend/resume transitions. Decouple VDD with a 100 nF ceramic as close to the pin as possible, plus a 10 uF bulk cap on the 3.3 V rail.
Estimated: USB Full-Speed edge rates are ~10 ns with 90 ohm differential impedance. Maintain a continuous ground reference beneath D+/D- traces; avoid split planes or voids under the USB differential pair. Series ferrite beads on VBUS prevent conducted EMI from entering the 3.3 V rail. If the design includes high-current switching (LED drivers, motor control via MCCP), physically separate the USB section from those subsystems to avoid radiated-noise coupling.
Estimated: At full active mode (32 MHz, all peripherals active, USB streaming), the PIC24FJ32GU203-E/M5 dissipates roughly 30-50 mW. With the UQFN-36 EP soldered to a 1 sq-inch 2-oz copper pour on a 4-layer PCB, theta_JA is approximately 35-40 C/W. Worst-case E-grade junction temperature at +125C ambient reaches the silicon limit (150C) at ~750 mW - well above normal operation. No external heatsink is required for typical use cases, but derating should be verified with a thermal probe on prototype builds.
コンプライアンス情報
RoHS and lead-free confirmed by DigiKey product page. AEC-Q100 qualification status not explicit in part number suffix; the E temperature grade alone does not imply AEC-Q100 - confirm with Microchip's automotive-grade part listings if AEC-Q100 is required. PIC24FJ32GU203 is not part of Microchip's documented AEC-Q100 portfolio.