PIC24FJ64GP202-I/SO - 16-bit 32MHz MCU 64KB Flash | Microchip
MPN: PIC24FJ64GP202-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.74 | $274.00 |
| 500 | $2.46 | $1,230.00 |
| 1,000 | $2.19 | $2,190.00 |
PIC24FJ64GP202-I/SO Overview
A 16-bit microcontroller (MCU) is a single-chip processor with a 16-bit datapath, 16-bit registers, and 16-bit arithmetic logic unit, sitting hierarchically above 8-bit MCUs (e.g., PIC16, ATmega) and below 32-bit MCUs (e.g., Cortex-M) within the broader microcontroller taxonomy of embedded processors. The wider datapath simplifies 16-bit sensor data handling, fractional arithmetic, and DSP-like routines without consuming the clock cycles a 32-bit core would need for the same task, while remaining more energy-efficient than 32-bit parts at equivalent MHz. The PIC24F core adds a modified Harvard architecture with separate program and data paths to keep instruction fetches off the data bus, sustaining 16 MIPS sustained throughput.
The 'GP2' family of PIC24F devices is a low-pin-count 16-bit MCU family from Microchip that emphasizes eXtreme Low Power (XLP) operation, with sleep current typically in the few-hundreds-of-nA range while retaining the contents of RAM and several core registers. The PIC24FJ64GP202-I/SO specifically integrates Full-Speed USB 2.0 (12 Mbps) with on-chip transceiver and OTG support, removing the need for an external USB PHY for most HID, CDC, vendor-class, and embedded host applications. ECC on the Flash array protects against bit-flip-induced code corruption, which is increasingly important for long-life industrial and IoT deployments.
The integrated CIPs include multiple configurable logic cells, a 32-bit hardware multiplier, multiple UART/SPI/I2C peripherals, 10/12-bit ADC modules, comparators, and RTCC, allowing deterministic hardware-driven I/O handling without CPU intervention. Hardware math acceleration (single-cycle MAC) is suitable for basic DSP operations such as filtering and PID loops. The 28-pin SOIC (0.295" / 7.50 mm body width) package offers the broadest breadboard and hand-soldering compatibility of the GP2 family, while also providing a comfortable copper-pour area for thermal dissipation at the modest 8 mA active current typical of the core.
Typical applications include USB HID peripherals such as keyboards, mice, and custom input devices; embedded data loggers and sensor hubs that need ECC-protected code; low-power IoT endpoints with USB enumeration for firmware updates or charging; and small industrial controllers using the XLP sleep modes to ride out long battery-life requirements. Design with the recommended 4 MHz to 32 MHz crystal or internal 8 MHz/32 kHz oscillators to optimize the active-vs-sleep power budget, and route the USB D+/D- pair as a 90-ohm differential pair to maintain signal integrity at full-speed rates.
Drop-in alternatives for PIC24FJ64GP202-I/SO — 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 PIC24FJ64GP202-I/SO (same form factor and footprint) — differing in MSL Level, Package, Program Memory (Flash), Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ64GB002-I/SO
✅ Drop-In✓ In Stock
$4.85 / Unit
View Datasheet →PIC24FJ64GA002-I/SO
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →PIC24FJ64GA002-E/SO
✅ Drop-In✓ In Stock
$3.81 / Unit
View Datasheet →PIC24FJ32GP202-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ32GA002-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ48GA002-I/SO
✅ Drop-In✓ In Stock
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View Datasheet →PIC24FJ64GP202-I/SO Maximum Ratings & Electrical Characteristics
| Family | PIC24F 'GP2' |
| Core | 16-bit PIC24F (modified Harvard, 16 MIPS) |
| Program Flash | 64 KB with ECC |
| RAM | 8 KB |
| CPU Clock Speed | 32 MHz max (16 MIPS) |
| USB | Full-Speed USB 2.0 Host/Device/OTG (on-chip transceiver) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| Package / Case | 28-pin SOIC (0.295") |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 Hours) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Sleep Current (XLP) | Few hundreds of nA (typical, mode-dependent) |
| Hardware Multiplier | 32-bit single-cycle MAC |
| On-Chip CIPs | Configurable Logic Cell, RTCC, comparators, multi-UART/SPI/I2C |
PIC24FJ64GP202-I/SO Pin Configuration
| Pin 1 | RA0 — Digital I/O / analog input / VREF+ |
| Pin 2 | RA1 — Digital I/O / analog input |
| Pin 3 | RA2 — Digital I/O / analog input |
| Pin 4 | RA3 — Digital I/O / analog input |
| Pin 5 | RA4 — Digital I/O / analog input |
| Pin 6 | RA5 — Digital I/O / analog input |
| Pin 7 | RA6 — Digital I/O / oscillator |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7 — Digital I/O |
| Pin 10 | RA8 — Digital I/O |
| Pin 11 | RB0 — Digital I/O / programming PGED1 |
| Pin 12 | RB1 — Digital I/O / programming PGEC1 |
| Pin 13 | VDD — Positive supply voltage (2.0V-3.6V) |
| Pin 14 | RB2 — Digital I/O / USB D- |
| Pin 15 | RB3 — Digital I/O / USB D+ |
| Pin 16 | RB4 — Digital I/O / SDA1 |
| Pin 17 | RB5 — Digital I/O / SCL1 |
| Pin 18 | RB6 — Digital I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | RB7 — Digital I/O |
| Pin 21 | RB8 — Digital I/O |
| Pin 22 | RB9 — Digital I/O |
| Pin 23 | RC0 — Digital I/O |
| Pin 24 | RC1 — Digital I/O |
| Pin 25 | RC2 — Digital I/O |
| Pin 26 | RC3 — Digital I/O |
| Pin 27 | RC4 — Digital I/O |
| Pin 28 | VDD — Positive supply voltage (2.0V-3.6V) |
Typical Applications
PIC24FJ64GP202-I/SO is suitable for 6 applications: USB HID Peripherals (Keyboards, Mice, Custom Input), Embedded Sensor Hubs and Data Loggers, USB-Charged IoT Edge Devices, Small Industrial Controllers (PLCs, HMI Tiles), Low-Power Wearable and Personal Devices, USB-OTG Bridges and Embedded Hosts.
USB HID Peripherals (Keyboards, Mice, Custom Input)
The PIC24FJ64GP202-I/SO is well suited for USB HID peripherals because it integrates a Full-Speed USB 2.0 device/host/OTG controller with an on-chip transceiver, removing the need for an external PHY and saving both BOM cost and PCB area. The 64 KB ECC Flash is large enough to host USB HID class descriptors, custom HID reports, and on-device configuration storage, while the 8 KB SRAM accommodates USB endpoint buffers plus HID ring buffers for multi-key rollover. Designers can use the integrated Core Independent Peripherals to debounce matrix keyscan rows in hardware without CPU wake-ups, and the XLP Sleep modes keep average current in the microamp range when the USB host suspends the device. Compared to an 8-bit MCU, the 16-bit datapath speeds up HID report parsing and LED/PWM timing.
Recommended
Embedded Sensor Hubs and Data Loggers
The PIC24FJ64GP202-I/SO makes a strong embedded sensor hub or data logger because the 16-bit datapath natively handles fractional sensor math (temperature, humidity, pressure, flow) without 32-bit overhead, while 64 KB ECC Flash protects stored calibration tables and logging firmware against bit-flip corruption in long-life deployments. The 8 KB SRAM supports ring-buffer logging of multi-sensor samples, and the on-chip 10/12-bit ADC plus comparators let the chip digitize analog sensors without external converters. The integrated USB controller provides a convenient CDC/Vendor-class bridge for offloading logged data to a host PC. The XLP Sleep modes allow wake-on-sensor-edge interrupts, drawing only a few hundred nA between measurements to maximize battery life on remote or battery-only installations.
Recommended
USB-Charged IoT Edge Devices
For USB-charged or USB-bus-powered IoT edge devices, the PIC24FJ64GP202-I/SO simplifies design by combining Full-Speed USB 2.0 OTG with the eXtreme Low Power (XLP) sleep architecture. The integrated USB transceiver negotiates bus power directly, allowing the device to charge a Li-ion cell or run from VBUS while still serving as a USB CDC/HID peripheral. The 64 KB ECC Flash accommodates OTA bootloader plus application, and the 8 KB SRAM supports dual-bank firmware upgrade with a small running footprint. Designers benefit from the hardware CIPs that perform timer, capture, and compare functions without waking the CPU, enabling long battery life in intermittently connected IoT products.
Recommended
Small Industrial Controllers (PLCs, HMI Tiles)
The PIC24FJ64GP202-I/SO is well suited for small industrial controllers and HMI tiles because its industrial operating temperature range (-40 C to +85 C) and ECC Flash address reliability concerns in factory and field installations. The 16 MIPS core and on-chip 32-bit hardware MAC support deterministic PID loops and basic DSP-style signal processing for process control without offloading to a DSP. Core Independent Peripherals handle quadrature decoding, PWM, and interlocked I/O without CPU intervention, allowing one MCU to manage multiple control loops simultaneously. The USB interface simplifies commissioning, configuration, and firmware updates from a technician's laptop. The 28-pin SOIC wide-body package also aids hand-rework and field replacement.
Recommended
Low-Power Wearable and Personal Devices
For wearable and personal electronic devices such as fitness trackers, smart buttons, and remote controls, the PIC24FJ64GP202-I/SO delivers a 16-bit performance profile with XLP Sleep current in the few-hundreds-of-nA range, extending coin-cell or Li-Po battery life. The integrated USB device controller simplifies charging and firmware updates via a standard micro-USB or USB-C connector, eliminating dedicated charging ICs in many designs. Core Independent Peripherals enable wake-on-motion, wake-on-touch, and timer-based sensor reads while the CPU remains asleep, minimizing total energy per interaction. The 64 KB ECC Flash comfortably fits Bluetooth/low-energy stack bridges or custom protocol handlers, while the SOIC wide-body package supports hand assembly for prototypes and small batches.
Recommended
USB-OTG Bridges and Embedded Hosts
The PIC24FJ64GP202-I/SO supports USB On-The-Go host/device role-switching, enabling it to act as a USB host that reads USB mass-storage devices, USB-HID instruments, or USB-to-serial bridges in embedded equipment. This eliminates the need for an external host controller and allows a single MCU to manage configuration uploads, firmware updates, and field data retrieval. The 32 MHz 16 MIPS core is fast enough to drive USB mass-storage FAT reads at practical throughput, and the 64 KB Flash stores both file-system glue code and application firmware. With 8 KB SRAM, designers can buffer moderate file blocks for read/write operations. The on-chip charge-pump and OTG comparators simplify the USB connector-side analog design.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ64GP202-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ64GB002-I/SO | PIC24FJ64GA002-I/SO | PIC24FJ32GP202-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (0.295") | 28-SOIC (0.295") - same | 28-SOIC (0.295") - same | 28-SOIC (0.295") - same |
| Program Flash | 64 KB ECC | 64 KB ECC | 64 KB | 32 KB (-50%) |
| RAM | 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 |
| Integrated USB | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 (with suspend) | No USB | Full-Speed USB 2.0 OTG |
| 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 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| XLP Sleep Current | Few hundreds of nA | Lower (enhanced Sleep) | Few hundreds of nA | Few hundreds of nA |
| Unit Price (1k, USD) | 2.19 | 2.25 | 2.10 | 1.98 |
Key Differentiators
- Integrated Full-Speed USB 2.0 OTG with on-chip transceiver (vs PIC24FJ64GA002-I/SO)
- Larger ECC-protected Flash for firmware + bootloader (vs PIC24FJ32GP202-I/SO)
- Lower Sleep current with USB suspend support (vs PIC24FJ64GB002-I/SO)
Design Notes
Estimated: with a 3.3 V supply and full 32 MHz operation the core plus USB controller draws ~15 mA active, so USB-suspended battery applications can reach months of standby by combining XLP Sleep (few hundred nA) with PMD-gated peripherals. Decouple VDD (pins 13, 28) and VSS (pins 8, 19) with a 100 nF ceramic plus 10 uF bulk capacitor placed within 5 mm of the IC.
Route the USB D+ (RB3) and D- (RB2) pair as a 90-ohm differential pair with matched length to within 150 mil, keep them clear of switching regulator edges, and place the 15 kohm pull-down on D- at the device pin to present a valid full-speed disconnect signature to the USB host. The 28-pin SOIC wide-body gives a generous copper pour under the exposed lead frame for thermal dissipation and ground return.
Do not assume the SOIC-28 GP2 pinout maps directly to PIC24FJ64GA002 pins - although the parts share the same package and most pins are identical, the GP2 USB D+/D- pins are repurposed as general I/O on the GA002 variant. Always re-validate the schematic against the specific datasheet revision (30009727c) and the GP2/GU2 family reference manual before porting code or swapping silicon in production.
Compliance Information
RoHS and REACH compliance confirmed from Microchip product page. Not AEC-Q100 qualified - this is a commercial/industrial grade part. Halogen-free status not explicitly stated in the provided data.
