PIC24FJ32GB002-I/SS - 16-bit 32MHz 32KB Flash USB MCU | Microchip
MPN: PIC24FJ32GB002-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.21 | $4.21 |
| 10 | $3.78 | $37.80 |
| 100 | $3.12 | $312.00 |
| 500 | $2.64 | $1,320.00 |
| 1,000 | $2.21 | $2,210.00 |
PIC24FJ32GB002-I/SS Overview
A 16-bit microcontroller (MCU) is a programmable processor with a 16-bit data path, balanced register width, and richer peripherals than 8-bit MCUs while remaining simpler and lower-cost than 32-bit ARM Cortex parts. Within Microchip's taxonomy, the PIC24F sits between PIC16/PIC18 8-bit parts and dsPIC/PIC32 32-bit parts, offering deterministic interrupt handling and DSP-friendly instructions for embedded signal processing. The 'FJ' prefix denotes the nanoWatt XLP extreme-low-power family, while the 'GB002' suffix marks this specific die with USB OTG and 32KB Flash. This product type falls under the hypernym hierarchy: microcontroller -> MCU -> embedded processor -> semiconductor IC.
Key differentiating features include the integrated USB 2.0 Full-Speed OTG controller, nanoWatt XLP technology for sub-µA sleep currents, 16-channel 10-bit ADC, multiple serial interfaces (UART, SPI, I2C), and a real-time clock-calendar (RTCC). The 28-pin SSOP package provides compact surface-mount integration while exposing enough I/O for human-interface and sensor-hub designs.
Architecturally, the PIC24FJ32GB002 uses a modified Harvard architecture with separate program and data buses, enabling single-cycle instruction fetch plus data access. The 16-bit core delivers 16 MIPS at 32 MHz, and the integrated USB PHY eliminates external transceiver components, reducing BOM cost. The CTMU peripheral supports touch sensing and capacitive measurement without an external analog front-end.
Typical applications include USB peripherals (HID, CDC, MSD class devices), battery-powered data loggers with USB charging, portable medical monitors, consumer-electronics human-interface devices, and low-power sensor hubs requiring USB connectivity. The combination of USB OTG and nanoWatt XLP makes the part especially attractive for self-powered USB devices that must idle in deep sleep and wake on USB attach.
When designing with this part, observe Microchip's VDD/VSS pinout rules (all VSS and VDD pins must be connected for proper programming), place the USB DP/DN traces as a 90-ohm differential pair, and provide a stable 3.3V rail (the device supports 2.0V-3.6V operation). The DISVREG pin must be properly tied off per the datasheet alternative-connection table when the internal voltage regulator is bypassed.
This page consolidates distributor pricing, drop-in same-package alternatives, and practical design guidance that go beyond the manufacturer datasheet, helping engineers select and qualify the PIC24FJ32GB002-I/SS for production designs.
Drop-in alternatives for PIC24FJ32GB002-I/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FJ32GB002-I/SS (same form factor and footprint) — differing in Package, ADC, Core Architecture, Timers, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ32GB002-I/SP
✅ Drop-In✓ In Stock
$2.6 / Unit
View Datasheet →PIC24FJ32GB002T-I/SS
✅ Drop-In✓ In Stock
$2.32 / Unit
View Datasheet →PIC24FJ32GB002-E/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ32GB002T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ32GA002-E/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →PIC24FJ32GB002-I/SS Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 16-Bit |
| Series | PIC® XLP™ 24F |
| Family | PIC24FJ64GB004 |
| Speed | 32 MHz (16 MIPS) |
| Program Memory | 32 KB (11K x 24) Flash |
| RAM | 8 KB |
| Package | 28-SSOP (5.30mm / 0.209in width) |
| Mounting Type | Surface Mount |
| USB Interface | USB 2.0 Full-Speed OTG (integrated PHY) |
| Operating Temperature | -40°C to +85°C (Industrial) |
| Supply Voltage | 2.0 V to 3.6 V |
| ADC | 10-bit, multi-channel (per datasheet) |
| Low-Power Technology | nanoWatt XLP |
| Tube Packaging | Yes (per FindIC) |
| RoHS Status | Compliant |
PIC24FJ32GB002-I/SS Pin Configuration
| Pin 1 | RA0 — I/O port A bit 0 / AN0 |
| Pin 2 | RA1 — I/O port A bit 1 / AN1 |
| Pin 3 | RA2 — I/O port A bit 2 / AN2 |
| Pin 4 | RA3 — I/O port A bit 3 / AN3 / VREF- |
| Pin 5 | RA4 — I/O port A bit 4 / AN4 |
| Pin 6 | RA5 — I/O port A bit 5 / AN5 / VREF+ |
| Pin 7 | RA6 — I/O port A bit 6 / OSC2 |
| Pin 8 | RA7 — I/O port A bit 7 / OSC1 |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0 — I/O port B bit 0 / AN8 |
| Pin 11 | RB1 — I/O port B bit 1 / AN9 |
| Pin 12 | RB2 — I/O port B bit 2 / AN10 |
| Pin 13 | RB3 — I/O port B bit 3 / AN11 |
| Pin 14 | RB4 — I/O port B bit 4 / AN12 |
| Pin 15 | RB5 — I/O port B bit 5 / AN13 |
| Pin 16 | RB6 — I/O port B bit 6 / ICSPCLK |
| Pin 17 | RB7 — I/O port B bit 7 / ICSPDAT |
| Pin 18 | VSS — Ground reference (second) |
| Pin 19 | VDD — Positive supply (2.0V-3.6V) |
| Pin 20 | DISVREG — Voltage regulator disable (tie per datasheet) |
| Pin 21 | RC0 — I/O port C bit 0 |
| Pin 22 | RC1 — I/O port C bit 1 |
| Pin 23 | VUSB — USB transceiver supply (3.3V) |
| Pin 24 | D- — USB differential minus |
| Pin 25 | D+ — USB differential plus |
| Pin 26 | RC2 — I/O port C bit 2 |
| Pin 27 | RC3 — I/O port C bit 3 |
| Pin 28 | RC4 — I/O port C bit 4 |
Typical Applications
PIC24FJ32GB002-I/SS is suitable for 6 applications: USB HID Peripheral Devices, Battery-Powered USB Data Loggers, Portable Medical Monitors, Consumer Electronics HID/Touch Interfaces, USB Charging-Status Indicators, Industrial Sensor Hubs with USB Logging.
USB HID Peripheral Devices
The PIC24FJ32GB002-I/SS is purpose-built for USB HID peripherals such as keyboards, mice, custom input devices, and game controllers. Its integrated Full-Speed USB 2.0 OTG controller with on-chip PHY eliminates external transceiver components, while 32KB Flash accommodates the Microchip USB stack (HID class plus application logic) and 8KB RAM handles USB endpoint buffers plus runtime data. The 16 MIPS core ensures low-latency HID report generation. nanoWatt XLP technology allows the device to enter deep sleep and wake on USB attach, dramatically reducing idle power for always-connected accessories. Best-fit when BOM cost is critical and USB device-only operation is sufficient.
Recommended
Battery-Powered USB Data Loggers
Portable data loggers that charge and upload over USB benefit from the PIC24FJ32GB002-I/SS's nanoWatt XLP deep-sleep currents (sub-µA) plus USB device-mode charging and CDC-MSD data transfer. The 8KB RAM buffers sensor samples between USB reads, and the 10-bit ADC plus CTMU supports direct sensor interfacing (temperature, voltage, capacitive level). Operating from 2.0V to 3.6V means a single Li-Ion or 2xAA cell powers both the MCU and the USB rail through a boost regulator. Best-fit when the design needs weeks-to-years battery life with periodic USB sync.
Recommended
Portable Medical Monitors
USB-connected medical monitors (blood pressure cuffs, pulse oximeters, glucose meters) benefit from the PIC24FJ32GB002-I/SS's industrial-grade -40°C to +85°C range, nanoWatt XLP for battery longevity, and integrated USB for tethered PC connectivity. The 10-bit ADC captures analog front-end signals from pressure and optical sensors, while 32KB Flash supports FDA-compliant firmware with trace logs. Per the Microchip PIC24FJ64GB004 Family datasheet, the CTMU enables capacitive touch interface for medical UI buttons without external components. Best-fit for Class I/II medical devices needing USB patient-data transfer.
Recommended
Consumer Electronics HID/Touch Interfaces
The PIC24FJ32GB002-I/SS supports USB-CDC or USB-HID communication in consumer products like remote controls, presentation clickers, custom keyboards, and human-interface devices. The CTMU peripheral enables capacitive touch buttons on the PCB without dedicated touch ICs, and 32KB Flash stores custom HID descriptors plus macro logic. The 28-SSOP package fits in compact consumer enclosures. Per Microchip's family documentation, the part's USB suspend/resume logic aligns with USB battery-saving specs. Best-fit for cost-sensitive consumer accessories where USB is the primary I/O.
Recommended
USB Charging-Status Indicators
USB wall-charger status indicators, smart USB hubs, and cable-with-display products use the PIC24FJ32GB002-I/SS to monitor VBUS voltage/current via the 10-bit ADC and report state over USB CDC or via on-board LEDs. The integrated USB OTG PHY handles attach detection and Type-A/Type-C state machines. Per the PIC24FJ64GB004 Family datasheet, the part's low operating voltage (2.0V) supports direct Li-Ion rail monitoring. Best-fit when charging-state intelligence is needed at a price point below $3 BOM.
Recommended
Industrial Sensor Hubs with USB Logging
Industrial sensor hubs using the PIC24FJ32GB002-I/SS aggregate analog and digital sensor data (via UART, SPI, I2C) and periodically upload logs over USB to a host PC. The 32KB Flash supports Modbus or custom industrial protocols, and the -40°C to +85°C industrial temperature range suits factory-floor deployment. The nanoWatt XLP sleep modes between uploads extend battery life in wireless or remote-monitor use cases. Best-fit for low-density sensor hubs where USB cable is the primary data offload path.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ32GB002-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ32GB002-I/SP | PIC24FJ32GB002T-I/SS | PIC24FJ32GB002-E/SS | PIC24FJ32GB002T-E/SS | PIC24FJ32GA002-E/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SPDIP (through-hole, NOT drop-in on SMT PCB) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| USB OTG | Yes (Full-Speed, integrated PHY) | Yes | Yes | Yes | Yes | No (USB pins are GPIO) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Core 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 |
| Supply Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Param Match | 100% | 100% (note: SPDIP package) | 100% | 90% (extended temp) | 90% (extended temp) | 70% (no USB OTG) |
Key Differentiators
- Integrated Full-Speed USB OTG with on-chip PHY (vs PIC24FJ32GA002-I/SS)
- nanoWatt XLP deep-sleep current (vs PIC24FJ32GB002-I/SP)
- 32KB Flash + 8KB RAM in 28-pin SSOP (vs PIC24FJ16GB002-I/SS)
Design Notes
Route USB D+ and D- as a 90-ohm differential pair on the top layer with continuous ground reference beneath. Keep the trace length matching within 150 mil, and place the VUSB decoupling capacitor (typically 0.01uF ceramic) within 1mm of the VUSB pin. Per Microchip's USB design guidelines, avoid vias in the D+/D- traces and keep them short to minimize signal-integrity loss.
Per the PIC24FJ64GB004 Family datasheet, all VSS (pins 9 and 18) and VDD (pin 19) pins MUST be connected for proper device programming and operation. If even one VSS pin is left floating, programming may fail. The DISVREG pin must be tied per the datasheet's alternative-connection table - either left floating (regulator enabled) or tied to VSS (regulator bypassed, external 1.8V supplied).
Do not use PIC24FJ32GA002 firmware on PIC24FJ32GB002 without checking USB pin assignments - GA002 lacks the USB block and reassigns those pins to general I/O, so register configurations differ. Also note: the /SS suffix indicates SSOP package; the /SP suffix is 28-pin SPDIP (through-hole) and is NOT a drop-in replacement on SMT PCBs even though silicon is identical. Verify the exact suffix against your PCB footprint before ordering.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade MCU; for automotive, look at PIC24FJ32GB002 automotive catalog parts.
