PIC24FJ32GA004T-I/PT - 16-bit MCU 32KB Flash 44-TQFP | Microchip
MPN: PIC24FJ32GA004T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.36 | $336.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.62 | $2,620.00 |
| 3,000 | $2.4 | $7,200.00 |
PIC24FJ32GA004T-I/PT Overview
A microcontroller (MCU) is an integrated circuit containing a processor core, memory, and programmable peripherals designed to execute firmware in embedded systems. The PIC24F family uses Microchip's modified Harvard architecture with a 16-bit data path and 24-bit instruction word, providing higher code density and faster arithmetic than 8-bit MCUs while retaining the deterministic interrupt model PIC developers rely on. This places the PIC24FJ32GA004T-I/PT in the power management and embedded control tier between 8-bit PIC16/PIC18 devices and 32-bit PIC32 parts.
Key features include hardware multiply (17x17 single-cycle) and divide (32/16-bit) units, a 10-bit ADC with up to 16 channels, multiple communication peripherals (UART, SPI, I2C), and Microchip's eXtreme Low Power (XLP) technology for battery-driven applications. The device integrates a real-time clock and calendar (RTCC) module, five 16-bit timers, and a charge time measurement unit (CTMU) for capacitive touch sensing. These features accelerate firmware development while reducing external component count.
The 32MHz oscillator (8MHz internal RC with 4x PLL) yields 16 MIPS throughput, enabling responsive control loops and efficient signal processing. The internal RC oscillator reduces BOM cost by eliminating external crystals in cost-sensitive designs. The 32KB Flash (11K x 24 words) and 8KB RAM provide ample space for application code, protocol stacks, and data buffers in IoT, sensor, and HMI products.
Typical applications include industrial control modules, low-power IoT sensor nodes, USB device firmware (with on-chip USB 2.0 full-speed transceiver), consumer white goods, motor control (with PWM and QEI peripherals), and graphical user interfaces via the integrated Parallel Master Port (PMP). The XLP features also suit battery-powered data loggers and wearable health monitors.
When designing with this device, evaluate the 2.5V/3.3V supply range against your analog rail requirements. Plan for the 44-pin TQFP PCB footprint early in the layout to leave room for decoupling capacitors and trace routing. The industrial temperature grade ensures operation in factory automation, outdoor enclosures, and automotive under-hood environments.
Drop-in alternatives for PIC24FJ32GA004T-I/PT — 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 PIC24FJ32GA004T-I/PT (same form factor and footprint) — differing in ADC, Core Architecture, Operating Temperature, Program Memory (Flash), Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ64GA004T-I/PT
✅ Drop-In✓ In Stock
$4.5 / Unit
View Datasheet →PIC24FJ32GA004-I/PT
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC24FJ32GA004-E/PT
✅ Drop-In✓ In Stock
$2.52 / Unit
View Datasheet →PIC24FJ16GA004-I/PT
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC24FJ32GB004T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP204-I/PT
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →PIC24FJ32GA004T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Program Memory (Flash) | 32 KB (11K x 24 instructions) |
| Data RAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Supply Voltage | 2.0 V to 3.6 V (2.5V / 3.3V nominal) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| I/O Pins | 35 |
| Package | 44-pin TQFP (10x10 mm) |
| ADC | 10-bit, up to 16 channels |
| Timers | 5 x 16-bit |
| Communication | UART, SPI, I2C, USB 2.0 Full-Speed |
| Hardware Multiply / Divide | 17x17 / 32-bit by 16-bit, single-cycle |
| PWM Channels | Multiple 16-bit PWM outputs |
| Mounting Type | Surface Mount |
| MSL Level | MSL 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Low-Power Technology | eXtreme Low Power (XLP) |
PIC24FJ32GA004T-I/PT Pin Configuration
| Pin 1 | RP3 — Remappable peripheral / I/O |
| Pin 2 | RP2 — Remappable peripheral / I/O |
| Pin 3 | RP1 — Remappable peripheral / I/O |
| Pin 4 | RG3 — I/O port G bit 3 |
| Pin 5 | RG2 — I/O port G bit 2 |
| Pin 6 | VUSB — USB voltage supply (3.3V typical) |
| Pin 7 | VBUS — USB bus voltage sense input |
| Pin 8 | D- — USB D- data line |
| Pin 9 | D+ — USB D+ data line |
| Pin 10 | VDD — Positive supply voltage |
| Pin 11 | VSS — Ground reference |
| Pin 12 | OSC1 — Oscillator input / CLKIN |
| Pin 13 | OSC2 — Oscillator output / CLKOUT |
| Pin 14 | PGEC1 — ICSP programming clock 1 |
| Pin 15 | PGED1 — ICSP programming data 1 |
| Pin 16 | PGEC2 — ICSP programming clock 2 |
| Pin 17 | PGED2 — ICSP programming data 2 |
| Pin 18 | MCLR — Master clear / reset input |
| Pin 19 | RA0 — I/O port A bit 0 / AN0 |
| Pin 20 | RA1 — I/O port A bit 1 / AN1 |
| Pin 21 | RA2 — I/O port A bit 2 / AN2 |
| Pin 22 | RA3 — I/O port A bit 3 / AN3 |
| Pin 23 | RA4 — I/O port A bit 4 |
| Pin 24 | RA5 — I/O port A bit 5 / AN4 |
| Pin 25 | RA6 — I/O port A bit 6 |
| Pin 26 | RA7 — I/O port A bit 7 |
| Pin 27 | RB0 — I/O port B bit 0 / AN8 |
| Pin 28 | RB1 — I/O port B bit 1 / AN9 |
| Pin 29 | RB2 — I/O port B bit 2 / AN10 |
| Pin 30 | RB3 — I/O port B bit 3 / AN11 |
| Pin 31 | RB4 — I/O port B bit 4 / AN12 |
| Pin 32 | RB5 — I/O port B bit 5 / AN13 / PGED3 |
| Pin 33 | RB6 — I/O port B bit 6 / AN14 / PGEC3 |
| Pin 34 | RB7 — I/O port B bit 7 / AN15 |
| Pin 35 | RC1 — I/O port C bit 1 |
| Pin 36 | RC2 — I/O port C bit 2 |
| Pin 37 | RC3 — I/O port C bit 3 |
| Pin 38 | RC4 — I/O port C bit 4 |
| Pin 39 | VDD — Positive supply voltage |
| Pin 40 | VSS — Ground reference |
| Pin 41 | RF4 — I/O port F bit 4 |
| Pin 42 | RF5 — I/O port F bit 5 / BUOUT |
| Pin 43 | RF6 — I/O port F bit 6 |
| Pin 44 | RG6 — I/O port G bit 6 |
Typical Applications
PIC24FJ32GA004T-I/PT is suitable for 6 applications: USB HID Peripheral Devices, Industrial Sensor Modules, Low-Power IoT Edge Nodes, Consumer Appliance Control, HMI Touch Interfaces, Motor Control and PWM Drives.
USB HID Peripheral Devices
The PIC24FJ32GA004T-I/PT is ideal for USB Human Interface Devices thanks to its integrated USB 2.0 Full-Speed transceiver, 32 KB Flash for HID class drivers, and 16 MIPS throughput for responsive polling. The on-chip USB module eliminates external PHY costs and supports control, interrupt, and bulk transfers without external components. With 35 I/O pins available, the device can directly scan key matrices, drive indicator LEDs, and read multiple sensors while presenting as a composite HID device to the host PC.
Recommended
Industrial Sensor Modules
The PIC24FJ32GA004T-I/PT suits industrial sensor modules requiring the industrial -40 C to +85 C temperature range, 10-bit ADC for analog sensor readings, and UART/SPI/I2C interfaces for sensor networking. Its eXtreme Low Power (XLP) technology enables battery-powered 4-20 mA loop replacements and wireless sensor nodes that sleep below 1 uA between measurements. The 32 KB Flash fits typical MODBUS or proprietary industrial protocols, while 8 KB RAM supports buffering of sensor data before transmission.
Recommended
Low-Power IoT Edge Nodes
The PIC24FJ32GA004T-I/PT serves low-power IoT edge nodes where its XLP technology, 2.0-3.6V operating range, and integrated peripherals reduce total BOM cost. A coin-cell-powered sensor node can use the deep sleep modes (<1 uA) with RTCC wake-up to extend battery life to multiple years. The 32 KB Flash accommodates protocol stacks for sub-GHz radio control, BLE command interfaces, or LoRaWAN device firmware, while the 5x16-bit timers drive precise sensor sampling windows.
Recommended
Consumer Appliance Control
The PIC24FJ32GA004T-I/PT powers consumer appliance control boards (washing machines, dishwashers, microwave ovens) where 35 I/O pins drive relays, seven-segment displays, and keypads. Its hardware multiply/divide accelerates motor control calculations, and the PWM channels support variable-speed drives for fans and pumps. The 32 KB Flash fits state-machine firmware plus diagnostic logging, while the RTCC tracks real-time schedules for delayed-start and timer functions in appliance UI.
Recommended
HMI Touch Interfaces
The PIC24FJ32GA004T-I/PT supports capacitive touch HMI panels through its integrated Charge Time Measurement Unit (CTMU), which measures capacitance changes on PCB touch pads without external touch ICs. The 16 MIPS performance runs small GUI libraries and debounces multiple touch zones in real time, while 35 I/O pins drive LEDs, LCD bias, and backlight PWM. The 8 KB RAM buffers touch event history for gesture recognition in white-good and IoT control panels.
Recommended
Motor Control and PWM Drives
The PIC24FJ32GA004T-I/PT drives BLDC, stepper, and brushed DC motors using its multiple 16-bit PWM outputs with complementary mode and programmable dead-time. The 32 MHz CPU handles field-oriented control (FOC) loops at sufficient sampling rates for small motors, while the QEI (Quadrature Encoder Interface) module reads incremental encoder feedback. With 35 I/O pins, the MCU interfaces with gate drivers, current-sense amplifiers, and protection circuitry in compact motor drive designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ32GA004T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ64GA004T-I/PT | PIC24FJ32GA004-I/PT | PIC24FJ32GA004-E/PT | PIC24FJ16GA004-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Flash Memory | 32 KB | 64 KB | 32 KB | 32 KB | 16 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C |
| Maximum CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| I/O Pins | 35 | 35 | 35 | 35 | 35 |
| USB Support | Yes (USB 2.0 Full-Speed) | Yes (USB 2.0 Full-Speed) | Yes (USB 2.0 Full-Speed) | Yes (USB 2.0 Full-Speed) | Yes (USB 2.0 Full-Speed) |
| Packaging Format | Tape and Reel | Tape and Reel | Tray | Tray | Tray |
Key Differentiators
- On-chip USB 2.0 Full-Speed transceiver with internal pull-up (vs PIC24FJ32GA002T-I/SO)
- 32 KB Flash with hardware multiply/divide (vs PIC24FJ16GA004-I/PT)
- eXtreme Low Power (XLP) technology (vs dsPIC33FJ32GP204-I/PT)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to each VDD pin (pins 10 and 39), with a bulk 4.7 uF or 10 uF tantalum/ceramic near the MCU. The PIC24FJ32GA004T-I/PT operates from 2.0 V to 3.6 V; for USB applications, VUSB (pin 6) requires a local 100 nF bypass plus a 4.7 uF bulk capacitor to handle USB inrush current during host enumeration.
Route the USB D+ and D- lines (pins 9 and 8) as a 90-ohm differential pair with matched lengths, keeping the trace length under 50 mm to avoid signal integrity issues. Place the clock crystal (or resonator) within 5 mm of OSC1/OSC2 (pins 12-13) and surround it with a ground guard ring to minimize EMI coupling to nearby analog signals. Avoid routing digital switching signals under the analog AVSS/AVDD supply pins if used.
Do not leave the MCLR pin (pin 18) floating - it must be pulled up to VDD through a 10 kohm resistor for normal operation. When using ICSP programming, ensure PGEC1/PGED1 (pins 14/15) and PGEC2/PGED2 (pins 16/17) are accessible on the PCB for in-circuit programming without removing the MCU. For USB designs, ensure VBUS sensing (pin 7) is correctly handled to comply with USB 2.0 suspend current requirements.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC24FJ32GA004-E/PT for extended temperature or designated automotive PIC24 variants. Conflict-free per Microchip supply chain policy.