PIC24FJ32GB002T-I/SS - 16-bit 32KB Flash MCU w/USB OTG | Microchip
MPN: PIC24FJ32GB002T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.47 | $34.70 |
| 100 | $3.05 | $305.00 |
| 500 | $2.68 | $1,340.00 |
| 1,000 | $2.32 | $2,320.00 |
PIC24FJ32GB002T-I/SS Overview
A 16-bit microcontroller (MCU) is a class of embedded computing device that processes instructions on 16-bit-wide data paths, delivering a strong balance between 8-bit simplicity and 32-bit performance. Within the broader taxonomy, a 16-bit MCU sits inside the microcontroller hierarchy -> microcontroller -> embedded processor -> semiconductor device. The PIC24FJ family specifically emphasizes eXtreme Low Power (XLP) operation, positioning it for battery-powered applications where nanoWatt sleep currents and active-mode efficiency directly extend operating life.
Key differentiating features of the PIC24FJ32GB002T-I/SS include its integrated USB OTG peripheral, the XLP nanoWatt technology sleep manager, and the 16 MIPS performance at 32 MHz (when operating at 3.3 V). The device provides 32 KB of self-programmable Flash and 8 KB of RAM, plus multiple 16-bit timers and configurable I/O. Compared to the non-USB PIC24FJ32GA002 sibling, the GB002's USB OTG controller makes it purpose-built for embedded USB-device and USB-host applications.
From an architectural perspective, the part uses a modified Harvard RISC core with a 16-bit instruction word, supporting C-optimized code generation through Microchip's MPLAB XC16 compiler. Peripheral DMA, parallel master port, and on-chip temperature sensor round out the integration level. The internal 8 MHz FRC oscillator with PLL allows flexible system clocking without external crystals in many designs.
Typical applications include USB HID peripherals such as custom keyboards, mice, and game controllers; embedded data-logging with USB mass-storage interfaces; low-power sensor hubs; and human-interface devices on consumer and industrial equipment. The USB OTG capability also makes the part suitable for point-of-sale terminals and portable medical instruments that must communicate directly with tablets or host PCs.
A key design consideration when using this device is that the USB PHY requires a precise 48 MHz clock derived from the system oscillator; designers must configure the PLL correctly and respect the VUSB 3.3 V regulator pin. The DISVREG (disable-voltage-regulator) pin must be properly tied to ensure stable operation across all temperature and load conditions.
This page consolidates distributor pricing, drop-in alternatives, and applied design notes not found in the manufacturer datasheet alone, helping engineers source and integrate the PIC24FJ32GB002T-I/SS with confidence.
Drop-in alternatives for PIC24FJ32GB002T-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 PIC24FJ32GB002T-I/SS (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Operating Temperature, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ32GB002-I/SS
✅ Drop-In✓ In Stock
$2.21 / Unit
View Datasheet →PIC24FJ32GB002-I/SP
✅ Drop-In✓ In Stock
$2.6 / Unit
View Datasheet →PIC24FJ32GA002-E/SS
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →PIC24FJ32GA002T-I/SO
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC24FJ32GA002-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ32GB002T-I/SS Maximum Ratings & Electrical Characteristics
| Series | PIC® XLP™ 24F |
| Core Architecture | PIC 16-bit RISC (Harvard) |
| Core Size | 16-bit |
| Core Speed (Max) | 32 MHz |
| MIPS | 16 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 8 KB |
| I/O Pins | 19 |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 28-SSOP (5.30 mm width) |
| Mounting Type | Surface Mount |
| Connectivity | I²C, IrDA, SPI, UART/USART, USB OTG |
| USB | USB 2.0 Full-Speed OTG (with internal transceiver) |
| Oscillator | Internal 8 MHz FRC with PLL |
| MSL Level | 1 (Unlimited at <30C / 85% RH) |
| RoHS Status | Compliant |
PIC24FJ32GB002T-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — I/O / Analog input 0 |
| Pin 2 | RA1/AN1 — I/O / Analog input 1 |
| Pin 3 | RA2/AN2/VREF- — I/O / Analog input 2 / VREF- |
| Pin 4 | RA3/AN3/VREF+ — I/O / Analog input 3 / VREF+ |
| Pin 5 | RA4 — I/O |
| Pin 6 | RA5 — I/O |
| Pin 7 | RA6/OSC2 — I/O / Crystal oscillator output |
| Pin 8 | RA7/OSC1 — I/O / Crystal oscillator input |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Positive supply (2.0-3.6 V) |
| Pin 11 | RB0/AN4 — I/O / Analog input 4 |
| Pin 12 | RB1/AN5 — I/O / Analog input 5 |
| Pin 13 | RB2/AN6 — I/O / Analog input 6 |
| Pin 14 | RB3/AN7 — I/O / Analog input 7 |
| Pin 15 | RB4/AN8 — I/O / Analog input 8 |
| Pin 16 | RB5/AN9 — I/O / Analog input 9 |
| Pin 17 | RB6/PGC — I/O / ICSP clock |
| Pin 18 | RB7/PGD — I/O / ICSP data |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply |
| Pin 21 | RC0 — I/O |
| Pin 22 | RC1 — I/O |
| Pin 23 | RC2 — I/O |
| Pin 24 | RC3 — I/O |
| Pin 25 | RC4/D- — I/O / USB D- |
| Pin 26 | RC5/D+ — I/O / USB D+ |
| Pin 27 | DISVREG — Disable internal voltage regulator |
| Pin 28 | VUSB — USB voltage regulator output (3.3 V) |
Typical Applications
PIC24FJ32GB002T-I/SS is suitable for 6 applications: USB HID Peripherals, Embedded Data Logging with USB Mass Storage, Low-Power Sensor Hubs, Point-of-Sale Terminals, Consumer Audio USB Interfaces, Industrial Control USB Bridges.
USB HID Peripherals
The PIC24FJ32GB002T-I/SS is purpose-built for USB Human Interface Devices such as custom keyboards, mice, game controllers, and macro pads. Its integrated USB 2.0 full-speed OTG controller eliminates the need for an external USB transceiver, reducing BOM cost and PCB area. With 16 MIPS at 32 MHz, the device has sufficient throughput to handle HID report polling at the standard 125 Hz / 1000 Hz rates without CPU bottlenecks. The 32 KB Flash accommodates full USB stacks including bootloader support, and the XLP nanoWatt sleep modes allow battery-powered HID devices to enter microamp-level idle between user inputs, extending battery life for wireless or rechargeable products.
Recommended
Embedded Data Logging with USB Mass Storage
For portable data loggers that write to USB flash drives, the PIC24FJ32GB002T-I/SS provides the USB OTG host capability required to enumerate and write to FAT-formatted removable storage. The 8 KB RAM and 32 KB Flash accommodate lightweight USB host stacks and FAT12/16 file I/O, while the 32 MHz CPU delivers the throughput needed for periodic sector writes. XLP technology extends battery life for field-deployed loggers that sit idle between sampling intervals, with nanoWatt sleep current measured in microamps. The integrated 10-bit ADC and configurable timers support sensor sampling without external peripherals, keeping the BOM small for cost-sensitive industrial and environmental monitoring applications.
Recommended
Low-Power Sensor Hubs
The PIC24FJ32GB002T-I/SS excels as a low-power sensor hub for IoT edge nodes, wearables, and remote monitoring devices. The XLP nanoWatt technology provides multiple sleep modes down to microamp current consumption, allowing battery-powered sensors to operate for years on a single cell. The 19 available I/O pins can interface multiple I²C or SPI sensors simultaneously, while the 10-bit ADC supports analog sensors such as temperature, light, or pressure transducers. Active-mode efficiency at 16 MIPS / 3.3 V enables brief wake cycles to read sensors and buffer data, after which the device returns to deep sleep - a typical pattern that maximizes battery life in duty-cycled sensor deployments.
Recommended
Point-of-Sale Terminals
For point-of-sale terminals, kiosks, and payment peripherals, the PIC24FJ32GB002T-I/SS delivers the USB connectivity required for direct host connection to POS terminals and tablets. The USB OTG controller supports both device-mode (card reader presenting as a USB HID) and host-mode (terminal connecting to peripherals). At 16 MIPS, the device handles keypad scanning, LCD driving via SPI, encryption co-processor handshaking, and USB protocol without performance bottlenecks. The industrial-grade -40C to +85C operating range ensures reliable operation in environments with temperature swings, and the small 28-SSOP package fits compact POS form factors where board real estate is at a premium.
Recommended
Consumer Audio USB Interfaces
USB audio peripherals such as USB speakers, USB headsets, and USB microphones benefit from the PIC24FJ32GB002T-I/SS's full-speed USB and ample MIPS throughput. The integrated USB transceiver streams 16-bit audio at full-speed rates while the MCU manages button inputs, LED indicators, and volume control via I²C peripherals. With 32 KB of Flash and 8 KB of RAM, the device handles USB audio class firmware, descriptor management, and basic digital signal processing for volume/bass/treble control. The 28-SSOP package supports compact audio dongle form factors, and XLP sleep modes cut power when audio is idle.
Recommended
Industrial Control USB Bridges
Industrial automation increasingly requires USB connectivity for configuration, diagnostics, and field updates, and the PIC24FJ32GB002T-I/SS serves as a robust USB-to-UART, USB-to-I²C, or USB-to-SPI bridge for legacy industrial equipment. With its industrial -40C to +85C temperature grade and proven PIC reliability, the device tolerates harsh factory environments. The 16 MIPS performance allows high-throughput bridging with low protocol latency, while the 32 KB Flash accommodates vendor-specific command sets and bootloaders for field-upgradable firmware. The 28-SSOP package and industrial EMC tolerance make it suitable for DIN-rail and panel-mount industrial controllers where USB diagnostic ports are required.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ32GB002T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ32GB002-I/SS | PIC24FJ32GB002-I/SP | PIC24FJ32GA002-E/SS | PIC24FJ32GA002T-I/SO | PIC24FJ32GA002-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP | 28-SDIP | 28-SSOP | 28-SOIC | 28-SSOP |
| 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 |
| 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 |
| USB OTG Peripheral | Yes (integrated) | Yes (integrated) | Yes (integrated) | No | No | No |
| I/O Pins | 19 | 19 | 19 | 19 | 19 | 19 |
| Temperature Range | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
Key Differentiators
- Integrated USB 2.0 OTG with on-chip transceiver (vs PIC24FJ32GA002T-I/SS)
- Same-package sibling for prototyping vs production assembly (vs PIC24FJ32GB002-I/SS)
- XLP nanoWatt technology for battery operation (vs PIC24FJ32GA002T-I/SS)
Design Notes
The PIC24FJ32GB002T-I/SS operates from 2.0 V to 3.6 V VDD. For USB applications, the internal 3.3 V voltage regulator must be enabled to provide VUSB to the USB transceiver pins (RC4/D-, RC5/D+). When DISVREG (pin 27) is tied low, the regulator is enabled; tying it high disables the regulator and VUSB must be supplied externally. Decouple VDD with 100 nF and 10 uF ceramic capacitors placed within 5 mm of the supply pins for clean operation under USB current spikes.
For USB signal integrity on the PIC24FJ32GB002T-I/SS, route the D+ and D- traces as a 90-ohm differential pair with matched lengths (within 2 mm) directly from the MCU pins to the USB connector. Keep the traces short, maintain a continuous ground plane beneath them, and avoid routing other signals across the USB differential pair. A common-mode choke and ESD protection array (such as the USBLC6-2SC6) are recommended for products requiring ESD immunity.
Do not leave VUSB (pin 28) floating when the internal USB regulator is disabled - this can cause indeterminate USB PHY operation. All VSS pins must be connected to ground even if one appears unused, because the PIC24FJ32GB002 family requires both VSS pins for return current paths and programming may fail otherwise. The DISVREG pin must be tied to a defined logic level; a floating DISVREG is a common source of brown-out behavior.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified (automotive variants would carry the -I/VAO suffix).
