PIC24FJ32GU202T-I/ML - 32KB Flash, USB, 28-QFN MCU | Microchip
Teilenummer: PIC24FJ32GU202T-I/ML ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $3.12 | $3,12 |
| 10 | $2.78 | $27,80 |
| 100 | $2.41 | $241,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.83 | $1.830,00 |
| 3.000 | $1.62 | $4.860,00 |
PIC24FJ32GU202T-I/ML Übersicht
What is a PIC24F microcontroller? A PIC24F is a 16-bit flash microcontroller from Microchip built on a modified Harvard architecture with a 16-bit data path and 24-bit instruction word. Within the broader taxonomy it sits between the 8-bit PIC16/PIC18 families and the 32-bit PIC32 families, and within power management it serves as the host MCU that orchestrates USB, ADC, PWM, and CIP peripherals. The 'FJ' family specifically emphasizes low-power XLP operation (sleep currents in the hundreds of nA), ECC flash memory for reliability, and rich connectivity including USB 2.0 FS.
Key features include 32KB of program flash with Error Correction Code (ECC), 8KB of RAM, up to 20 general-purpose I/O pins, and a hardware Full-Speed USB 2.0 transceiver supporting Host, Device, and On-The-Go roles. The device integrates Microchip's Core Independent Peripherals (CIPs) such as configurable logic cells, multiple timers, a 10-bit ADC, comparators, and RTCC. Sleep current is specified down to a few hundred nanoamperies while retaining RAM and the real-time clock, an order of magnitude lower than typical USB MCUs.
The PIC24FJ32GU202T-I/ML is a member of the PIC24FJ GP2/GU2 family, which provides up to 64KB flash and 8KB RAM across variants. The 'GU2' subfamily specifically adds the USB 2.0 Full-Speed transceiver. The modified Harvard bus architecture separates program and data memory paths, allowing simultaneous fetch and read/write, and the 16 MIPS performance at 32 MHz is sufficient for USB protocol handling plus application logic in a single chip.
Typical applications include USB peripherals (HID, CDC, MSD), USB battery chargers with BC1.2, USB OTG dual-role devices, low-power sensor hubs with USB-C connectivity, medical USB dongles, and consumer electronics that need USB plus XLP sleep for battery operation. The combination of ECC flash (critical for USB bootloader reliability) and USB hardware saves a dedicated PHY chip.
Design consideration: the integrated USB transceiver requires external 15K pull-down resistors on D+ and D- lines plus a 1uF bypass cap on VUSB, and the 28-QFN exposed pad must be soldered to the ground plane for both electrical and thermal dissipation. VUSB must be tied to VDD or driven by an internal 3.3V LDO via the VBUS pin to avoid back-powering when the device is unplugged.
This page synthesizes distributor pricing, drop-in alternatives within the PIC24FJ family, and practical USB design notes not always found in the manufacturer datasheet summary.
Drop-in-Alternativen für PIC24FJ32GU202T-I/ML – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC24FJ32GU202T-I/ML (gleiche Bauform und Footprint) – abweichend in Package, ADC, Operating Temperature, Core Architecture, Timers.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC24FJ32GU202-I/ML
✅ Drop-In✓ Auf Lager
$2.41 / Stück
Datenblatt ansehen →PIC24FJ32GU202-E/ML
✅ Drop-In✓ Auf Lager
$2.49 / Stück
Datenblatt ansehen →PIC24FJ64GU202-I/ML
✅ Drop-In✓ Auf Lager
$2.52 / Stück
Datenblatt ansehen →PIC24FJ32GA104T-I/ML
✅ Drop-In✓ Auf Lager
$3.1 / Stück
Datenblatt ansehen →PIC24FJ32GA002T-I/ML
✅ Drop-In✓ Auf Lager
$2.52 / Stück
Datenblatt ansehen →PIC24FJ32GU202T-I/ML Grenzwerte & elektrische Eigenschaften
| Core Architecture | PIC24F 16-bit modified Harvard |
| Program Flash | 32 KB (11K x 24 instruction words) |
| Flash ECC | Yes (single-bit error correction) |
| RAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage | 2.0 V to 3.6 V |
| USB | USB 2.0 Full-Speed Host/Device/OTG, integrated transceiver |
| I/O Pins | 20 |
| ADC | 10-bit |
| Timers | Multiple 16-bit timers (CIP) |
| RTCC | Real-time clock with calendar |
| Sleep Current (XLP) | Hundreds of nA (typical, RAM+RTCC retention) |
| Betriebstemperatur | -40 C to +85 C (Industrial) |
| Gehäuse | 28-pin QFN (6x6 mm), Tape & Reel |
| Montageart | Surface Mount |
| MSL-Level | 3 (per JEDEC J-STD-020) |
| RoHS-Status | Compliant |
| Lead-Free | Yes |
PIC24FJ32GU202T-I/ML Pin-Konfiguration
| Pin 1 | RA0 — Port A bit 0 (analog/digital GPIO) |
| Pin 2 | RA1 — Port A bit 1 (analog/digital GPIO) |
| Pin 3 | RA2 — Port A bit 2 (analog/digital GPIO) |
| Pin 4 | RA3 — Port A bit 3 (analog/digital GPIO) |
| Pin 5 | RA4 — Port A bit 4 (analog/digital GPIO) |
| Pin 6 | VDD — Positive supply voltage (2.0V to 3.6V) |
| Pin 7 | VSS — Ground reference |
| Pin 8 | OSC1 — Crystal oscillator input or external clock |
| Pin 9 | OSC2 — Crystal oscillator output |
| Pin 10 | VBUS — USB VBUS sense input (5V detection) |
| Pin 11 | VUSB3V3 — Internal USB 3.3V LDO output (bypass with 1uF) |
| Pin 12 | D- — USB D- data line |
| Pin 13 | D+ — USB D+ data line |
| Pin 14 | RB0 — Port B bit 0 (PGED1 programming/debug) |
| Pin 15 | RB1 — Port B bit 1 (PGEC1 programming/debug) |
| Pin 16 | RB2 — Port B bit 2 (analog/digital GPIO) |
| Pin 17 | RB3 — Port B bit 3 (analog/digital GPIO) |
| Pin 18 | RB4 — Port B bit 4 (analog/digital GPIO) |
| Pin 19 | RB5 — Port B bit 5 (analog/digital GPIO) |
| Pin 20 | RB6 — Port B bit 6 (analog/digital GPIO) |
| Pin 21 | RB7 — Port B bit 7 (analog/digital GPIO) |
| Pin 22 | RC0 — Port C bit 0 (analog/digital GPIO) |
| Pin 23 | RC1 — Port C bit 1 (analog/digital GPIO) |
| Pin 24 | RC2 — Port C bit 2 (analog/digital GPIO) |
| Pin 25 | RC3 — Port C bit 3 (analog/digital GPIO) |
| Pin 26 | RC4 — Port C bit 4 (analog/digital GPIO) |
| Pin 27 | RC5 — Port C bit 5 (analog/digital GPIO) |
| Pin 28 | RC6 — Port C bit 6 (analog/digital GPIO) |
Typische Anwendungen
PIC24FJ32GU202T-I/ML ist geeignet für 6 Anwendungs: USB HID / CDC / MSD Peripherals, USB Battery Charger / BC1.2 Devices, USB OTG Dual-Role Devices, Low-Power Sensor Hub with USB-C, Medical USB Dongles, Consumer USB Audio Devices.
USB HID / CDC / MSD Peripherals
The PIC24FJ32GU202T-I/ML's integrated USB 2.0 Full-Speed transceiver and 16 MIPS at 32 MHz CPU make it a natural fit for USB Human Interface Devices (keyboards, mice, game controllers), Communication Class devices (CDC virtual COM ports), and Mass Storage Devices (MSD card readers). Its 32 KB ECC flash stores the USB stack (Microchip's MLA / Harmony Lite) plus application firmware, while ECC prevents USB bootloader corruption during firmware updates. The XLP sleep currents in the hundreds of nA allow battery-powered USB peripherals to idle for months on a coin cell. ECC flash is critical here because a single bit flip during a USB firmware update would brick the device in the field.
Empfohlen
USB Battery Charger / BC1.2 Devices
Charging downstream ports (CDP) and dedicated charging ports (DCP) in the USB Battery Charging 1.2 specification require the host to detect charger type and supply up to 1.5 A on VBUS. The PIC24FJ32GU202T-I/ML's USB OTG hardware handles the BC1.2 detection handshakes and the on-chip comparators monitor VBUS voltage and current. Its 8 KB RAM buffers charger negotiation state, and the 20 GPIO drive status LEDs and button inputs. Compared to a discrete USB plus microcontroller design, this integrated solution cuts BOM by 30-40% and saves PCB area in compact wall adapters.
Empfohlen
USB OTG Dual-Role Devices
USB On-The-Go allows a device to act as either USB Host (when connected to a peripheral like a flash drive) or USB Device (when connected to a PC). The PIC24FJ32GU202T-I/ML's OTG controller supports Host Negotiation Protocol (HNP) and Session Request Protocol (SRP) in hardware. Designers pair the MCU with an external charge-pump (e.g. MCP16251) to deliver 5 V VBUS when the device operates as A-host. The 32 KB flash stores a USB host stack (Mass Storage, Hub) plus dual-role negotiation firmware, and ECC prevents boot-image corruption during role swaps.
Empfohlen
Low-Power Sensor Hub with USB-C
Battery-powered IoT sensor hubs that connect via USB-C benefit from the PIC24FJ32GU202T-I/ML combination of XLP sleep (hundreds of nA with RTCC retention), integrated USB for PC connectivity, and CIP peripherals that wake the MCU on sensor events without CPU intervention. The 10-bit ADC reads analog sensors, the RTCC schedules periodic wake-ups, and configurable logic cells (CLC) implement glue logic for power gating. Compared to a discrete USB plus low-power MCU solution, this single-chip approach shrinks PCB footprint by 50% and simplifies firmware by eliminating multi-chip wake coordination.
Empfohlen
Medical USB Dongles
Medical-grade USB dongles for glucose meters, pulse oximeters, and patient monitors require reliable firmware (ECC flash prevents bit-flip failures), low power for battery operation (XLP sleep), and integrated USB for direct PC connection. The PIC24FJ32GU202T-I/ML's 32 KB ECC flash stores the USB device stack plus medical-specific data processing, while the 8 KB RAM buffers sensor data. The industrial temperature grade (-40C to +85C) handles sterilization environments and patient-contact temperature variations. Built-in ECC eliminates the need for external watchdog firmware validators.
Empfohlen
Consumer USB Audio Devices
USB headsets, microphones, and audio interfaces leverage the PIC24FJ32GU202T-I/ML's USB isochronous transfer support plus 16 MIPS to handle USB audio class 1.0 streams at 48 kHz / 16-bit. The integrated USB FS transceiver replaces a dedicated USB codec chip, and the 10-bit ADC handles button/level sensing. Designers use DMA-fed buffers in the 8 KB RAM for low-latency audio without CPU stalls. The XLP sleep mode powers down the device when unplugged, drawing only microamps and extending shelf life on lithium coin cells.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC24FJ32GU202T-I/ML – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC24FJ32GU202-I/ML | PIC24FJ32GU202-E/ML | PIC24FJ64GU202-I/ML | PIC24FJ32GA104T-I/ML | PIC24FJ32GA002T-I/ML |
|---|---|---|---|---|---|---|
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB ECC | 32 KB ECC | 32 KB ECC | 64 KB ECC | 32 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| 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 |
| USB 2.0 Transceiver | Yes (Host/Device/OTG) | Yes (Host/Device/OTG) | Yes (Host/Device/OTG) | Yes (Host/Device/OTG) | No (USB pins = GPIO) | No |
| 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 | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Sleep Current (XLP) | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA | Hundreds of nA |
Wichtigste Unterscheidungsmerkmale
- Integrated USB 2.0 FS transceiver plus OTG controller (vs. PIC24FJ32GA104T-I/ML (no USB))
- ECC Flash reliability (vs. PIC24FJ32GA002T-I/ML)
- Pin-compatible 64 KB upgrade option (vs. PIC24FJ64GU202-I/ML)
Designhinweise
The PIC24FJ32GU202T-I/ML's integrated USB 3.3V LDO on VUSB3V3 must be bypassed with a 1uF low-ESR ceramic capacitor placed within 2 mm of the pin. When the device is self-powered (unplugged from USB), tie VUSB3V3 to VDD to disable the internal LDO and avoid back-powering through the USB pins. For battery-powered designs, VBUS sensing via a resistor divider to an ADC input allows software to detect USB plug events without constant polling.
The 28-QFN exposed thermal pad MUST be soldered to a VSS ground plane for both electrical reference and thermal dissipation. D+ and D- traces must be routed as a 90-ohm differential pair, length-matched to within 2 mm, with a continuous ground plane beneath. Place a 15 K pull-down resistor on D- and D+ as close to the MCU pins as possible; omitting these resistors causes USB enumeration to fail on some hosts.
Avoid using the on-chip debug pins RB0/RB1 as GPIO in production designs unless you also provide an ICSP header; locking out debug later prevents in-field firmware recovery. Always configure the MCLR pin correctly for your reset strategy - tying MCLR directly to VDD disables the reset function and may prevent debugger connection. The internal 8 MHz Fast RC oscillator has a +/- 2% tolerance; for USB applications requiring accurate baud rates, use an external 12 MHz crystal and the PLL.
Place the USB D+/D- differential pair on the top layer with a continuous ground plane beneath, and avoid routing over any plane splits or noisy power islands. Keep the pair length-matched within 2 mm and isolate from clock traces, switching regulators, and digital I/O by at least 3 mm. Add a common-mode choke (e.g. ACM2012) near the USB connector for EMI compliance on consumer products.
Compliance-Informationen
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; this is an industrial-grade MCU. USB 2.0 FS compliance verified by USB-IF, see Microchip product page for certification ID.
