PIC24FJ32GA004T-I/PT - 16-bit MCU 32KB Flash 44-TQFP | Microchip
MPN： PIC24FJ32GA004T-I/PT ✓ 啟用中PIC24FJ32GA004T-I/PT 概覽
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.
直接替換替代品，適用於 PIC24FJ32GA004T-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24FJ32GA004T-I/PT （相同外形與佔位） — 差異在於 ADC, Core Architecture, Operating Temperature, Program Memory (Flash), Package.
PIC24FJ64GA004T-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GA004-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GA004-E/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ16GA004-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GB004T-I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33FJ32GP204-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GA004T-I/PT 最大額定值與電氣特性
| 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) |
| 供應電壓 | 2.0 V to 3.6 V (2.5V / 3.3V nominal) |
| 工作溫度 | -40 C to +85 C (Industrial) |
| I/O Pins | 35 |
| 封裝 | 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 |
| 安裝類型 | Surface Mount |
| MSL 等級 | MSL 3 (per JEDEC J-STD-020) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
| Low-Power Technology | eXtreme Low Power (XLP) |
PIC24FJ32GA004T-I/PT 腳位配置
| 腳位 1 | RP3 — Remappable peripheral / I/O |
| 腳位 2 | RP2 — Remappable peripheral / I/O |
| 腳位 3 | RP1 — Remappable peripheral / I/O |
| 腳位 4 | RG3 — I/O port G bit 3 |
| 腳位 5 | RG2 — I/O port G bit 2 |
| 腳位 6 | VUSB — USB voltage supply (3.3V typical) |
| 腳位 7 | VBUS — USB bus voltage sense input |
| 腳位 8 | D- — USB D- data line |
| 腳位 9 | D+ — USB D+ data line |
| 腳位 10 | VDD — Positive supply voltage |
| 腳位 11 | VSS — Ground reference |
| 腳位 12 | OSC1 — Oscillator input / CLKIN |
| 腳位 13 | OSC2 — Oscillator output / CLKOUT |
| 腳位 14 | PGEC1 — ICSP programming clock 1 |
| 腳位 15 | PGED1 — ICSP programming data 1 |
| 腳位 16 | PGEC2 — ICSP programming clock 2 |
| 腳位 17 | PGED2 — ICSP programming data 2 |
| 腳位 18 | MCLR — Master clear / reset input |
| 腳位 19 | RA0 — I/O port A bit 0 / AN0 |
| 腳位 20 | RA1 — I/O port A bit 1 / AN1 |
| 腳位 21 | RA2 — I/O port A bit 2 / AN2 |
| 腳位 22 | RA3 — I/O port A bit 3 / AN3 |
| 腳位 23 | RA4 — I/O port A bit 4 |
| 腳位 24 | RA5 — I/O port A bit 5 / AN4 |
| 腳位 25 | RA6 — I/O port A bit 6 |
| 腳位 26 | RA7 — I/O port A bit 7 |
| 腳位 27 | RB0 — I/O port B bit 0 / AN8 |
| 腳位 28 | RB1 — I/O port B bit 1 / AN9 |
| 腳位 29 | RB2 — I/O port B bit 2 / AN10 |
| 腳位 30 | RB3 — I/O port B bit 3 / AN11 |
| 腳位 31 | RB4 — I/O port B bit 4 / AN12 |
| 腳位 32 | RB5 — I/O port B bit 5 / AN13 / PGED3 |
| 腳位 33 | RB6 — I/O port B bit 6 / AN14 / PGEC3 |
| 腳位 34 | RB7 — I/O port B bit 7 / AN15 |
| 腳位 35 | RC1 — I/O port C bit 1 |
| 腳位 36 | RC2 — I/O port C bit 2 |
| 腳位 37 | RC3 — I/O port C bit 3 |
| 腳位 38 | RC4 — I/O port C bit 4 |
| 腳位 39 | VDD — Positive supply voltage |
| 腳位 40 | VSS — Ground reference |
| 腳位 41 | RF4 — I/O port F bit 4 |
| 腳位 42 | RF5 — I/O port F bit 5 / BUOUT |
| 腳位 43 | RF6 — I/O port F bit 6 |
| 腳位 44 | RG6 — I/O port G bit 6 |
典型應用
PIC24FJ32GA004T-I/PT 適用於 6 應用s: 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.
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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.
推薦
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.
推薦
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.
推薦
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.
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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.
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推薦產品摘要
工程參考資料，適用於 PIC24FJ32GA004T-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- On-chip USB 2.0 Full-Speed transceiver with internal pull-up (對比PIC24FJ32GA002T-I/SO)
- 32 KB Flash with hardware multiply/divide (對比PIC24FJ16GA004-I/PT)
- eXtreme Low Power (XLP) technology (對比dsPIC33FJ32GP204-I/PT)
設計說明
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.
合規資訊
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.