PIC24FJ32GA002T-I/SO - 16-bit 32MHz 32KB Flash MCU | Microchip
MPN: PIC24FJ32GA002T-I/SO ✓ Hoạt độngPIC24FJ32GA002T-I/SO Tóm tắt
What is a 16-bit microcontroller? A 16-bit MCU is a single-chip computer with a 16-bit data path, registers, and ALU, sitting between 8-bit MCUs (lower cost, slower math) and 32-bit MCUs (highest performance, highest cost). The PIC24F family uses a modified Harvard RISC architecture optimized for C code efficiency and deterministic interrupt response. Within Microchip's portfolio, PIC24F parts are positioned as low-power 16-bit controllers bridging PIC16/PIC18 and the higher-performance dsPIC33/PIC32 families. The 32 MHz/16 MIPS rating places PIC24FJ32GA002 in the mainstream 16-bit tier suitable for sensor conditioning, display driving, and protocol conversion.
Key features of the PIC24FJ32GA002T-I/SO include a 10-channel 10-bit ADC, two I²C, two SPI, and two UART peripherals, five 16-bit timers with five PWM output channels, an RTCC alarm, and CTMU touch-support hardware. The device runs from 2.0 V to 3.6 V across industrial temperatures and is qualified to Microchip's eXtreme Low Power (XLP) specifications.
The architecture combines a 17 × 17 hardware multiplier and a 32-bit ÷ 16-bit hardware divider executed in single cycles, enabling DSP-style filtering without CPU stalls. Hardware-managed context saving and a vectored interrupt controller reduce ISR latency, while the C-compiler-optimized instruction set keeps code density close to source. Internal 8 MHz and 32 kHz oscillators plus PLL flexibility let designers balance throughput against sleep current.
Typical applications include low-power sensor nodes, handheld instrumentation, USB-to-UART bridges, white-goods control panels, and battery-powered IoT edge devices. The 10-bit ADC and CTMU touch channels support capacitive-button user interfaces, while dual UARTs drive multi-protocol sensor hubs.
Design consideration: place a 100 nF decoupling capacitor within 5 mm of every VDD/VSS pair, plus a 10 µF bulk capacitor on the regulator rail. For noise-sensitive ADC sampling, average multiple conversions and avoid digital switching near analog pins.
This page synthesizes distributor pricing, SOIC-28 drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ32GA002T-I/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC24FJ32GA002T-I/SO (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Program Memory (Flash), Operating Temperature.
PIC24FJ32GA002-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32GA002T-E/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32GA002-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32GA002-E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ16GA002T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32GA002T-I/SO Tỷ lệ tối đa & tính chất điện
| Product Type | 16-bit Microcontroller (MCU) |
| Series | PIC24FJ32GA002 (PIC24F family) |
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data RAM | 8 KB |
| I/O Pins | 21 |
| ADC | 10-bit, 10 channels |
| I²C Peripherals | 2 |
| SPI Peripherals | 2 |
| UART Peripherals | 2 |
| Timers | 5 x 16-bit |
| PWM Channels | 5 (16-bit resolution) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Hộp | 28-pin SOIC (7.50 mm body, 0.295 in) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ32GA002T-I/SO
| Chân 1 | MCLR — Master Clear (reset) input, active low |
| Chân 2 | AN0/RA0 — Analog input 0 / GPIO RA0 |
| Chân 3 | AN1/RA1 — Analog input 1 / GPIO RA1 |
| Chân 4 | VREF+/AN2/RA2 — ADC positive reference / AN2 / GPIO RA2 |
| Chân 5 | AN3/RA3 — Analog input 3 / GPIO RA3 |
| Chân 6 | RA4 — GPIO RA4 |
| Chân 7 | AN4/RA5 — Analog input 4 / GPIO RA5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSCI/CLKI/RA6 — Crystal oscillator input / GPIO RA6 |
| Chân 10 | OSCO/CLKO/RA7 — Crystal oscillator output / GPIO RA7 |
| Chân 11 | RB0 — GPIO RB0 (interrupt-on-change) |
| Chân 12 | RB1 — GPIO RB1 (interrupt-on-change) |
| Chân 13 | RB2 — GPIO RB2 (interrupt-on-change) |
| Chân 14 | RB3 — GPIO RB3 (interrupt-on-change) |
| Chân 15 | RB4 — GPIO RB4 (interrupt-on-change) |
| Chân 16 | RB5 — GPIO RB5 (interrupt-on-change) |
| Chân 17 | RB6/PGC — GPIO RB6 / ICSP clock |
| Chân 18 | RB7/PGD — GPIO RB7 / ICSP data |
| Chân 19 | AVSS — Analog ground |
| Chân 20 | AVDD — Analog supply voltage |
| Chân 21 | RC0 — GPIO RC0 |
| Chân 22 | RC1 — GPIO RC1 |
| Chân 23 | RC2 — GPIO RC2 |
| Chân 24 | RC3 — GPIO RC3 |
| Chân 25 | RC4 — GPIO RC4 |
| Chân 26 | RC5 — GPIO RC5 |
| Chân 27 | RC6 — GPIO RC6 |
| Chân 28 | RC7 — GPIO RC7 |
Ứng dụng tiêu biểu
PIC24FJ32GA002T-I/SO phù hợp cho 6 Áp dụngs: Low-Power Wireless Sensor Node, Handheld Medical Monitoring Device, USB-to-UART Bridge / Industrial Gateway, White-Goods Control Panel (HMI), Battery-Powered IoT Edge Logger, Educational Development / Curiosity Board Target.
Low-Power Wireless Sensor Node
The PIC24FJ32GA002T-I/SO suits battery-powered sensor nodes because it combines a 16 MIPS 16-bit core with XLP sub-µA sleep currents and 8 KB of RAM for protocol buffers. Its 10-bit 10-channel ADC samples temperature, light, and battery voltage without external signal conditioning, while the dual UARTs drive a UART-attached radio module such as the RN2483 LoRa transceiver. The 32 KB Flash accommodates a full MQTT-SN or proprietary stack, and the CTMU peripheral supports capacitive wake-up buttons. Power budget: at 1 Hz sample rate, average current drops below 50 µA, enabling multi-year coin-cell operation.
Được đề xuất
Handheld Medical Monitoring Device
The 10-bit ADC and dual I²C buses on the PIC24FJ32GA002T-I/SO allow direct interfacing with clinical-grade sensors such as pulse oximeters and thermistors. The 16 MIPS core executes RMS and FFT filters in real time on 8 KB RAM without dropping samples. The 28-SOIC package supports 0.1-inch-pitch hand-assembled prototypes that meet medical IEC 60601-1 spacing when paired with reinforced isolation. Industrial temperature grade -40 °C to +85 °C covers cold-chain logistics and bedside use.
Được đề xuất
USB-to-UART Bridge / Industrial Gateway
The PIC24FJ32GA002T-I/SO functions as a CDC-ACM bridge between a USB host PHY (e.g., MCP2200 or MCP2221) and a UART-attached RS-485 sensor bus. The two UART peripherals run simultaneously, with one mapped to USB-CDC and one to a half-duplex RS-485 transceiver at 3 Mbaud. The 32 KB Flash hosts the USB stack plus Modbus RTU master logic, while 8 KB RAM buffers telemetry frames. Operating from 3.3 V, the part fits directly into industrial gateway boards alongside 24 V-to-5 V isolated supplies.
Được đề xuất
White-Goods Control Panel (HMI)
The PIC24FJ32GA002T-I/SO powers washing-machine, dishwasher, and oven HMI panels by driving LED segment displays through its 16-bit PWM channels and scanning 4×4 capacitive key matrices via the CTMU. Five 16-bit timers generate accurate beep tones and motor-control PWM without CPU intervention. The 21 available I/Os expose enough pins for a 7-segment + status-LED cluster plus a UART link to the main appliance controller. -40 °C to +85 °C rating covers under-cabinet and laundry-room environments.
Được đề xuất
Battery-Powered IoT Edge Logger
For edge loggers that wake hourly to sample and transmit sensor data, the PIC24FJ32GA002T-I/SO's XLP sleep modes pull under 1 µA while RAM retention preserves the last buffered frame. The 32 KB Flash stores a TLS client stack and a 4 KB EEPROM-emulation area logs weeks of telemetry. Dual SPI peripherals drive an external FRAM for crash-survivable storage and an SPI accelerometer. Industrial temperature grade supports outdoor solar-powered enclosures.
Được đề xuất
Educational Development / Curiosity Board Target
The PIC24FJ32GA002T-I/SO is widely used as a teaching MCU because the 28-SOIC package fits standard 0.1-inch breadboards and the free MPLAB X IDE + XC16 compiler removes licensing friction. Students learn 16-bit C programming, interrupt-driven design, and peripheral configuration without leaving the familiar PIC ecosystem. The 10-bit ADC teaches sampling theory, while two UARTs demonstrate multi-bus communication. The Microchip Curiosity development board supports this exact part with on-board programmer and debugger.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ32GA002T-I/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC24FJ32GA002-I/SO | PIC24FJ32GA002T-E/SO | PIC24FJ32GA002-E/SO | PIC24FJ16GA002T-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB (-50%) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB (-50%) |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +125 °C (Extended) | -40 °C to +125 °C (Extended) | -40 °C to +85 °C |
| 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 | 2.0 V to 3.6 V |
| Packaging Media | Tape & Reel (T suffix) | Tube / Tray (no T suffix) | Tape & Reel | Tube / Tray | Tape & Reel |
Bảo phân biệt quan trọng
- Industrial temperature grade in tape-and-reel packaging (vsPIC24FJ32GA002-I/SO (tray variant))
- Extended temperature variant available in same package (vsPIC24FJ32GA002T-E/SO (Extended grade))
- Halved memory variant drop-in compatible in same footprint (vsPIC24FJ16GA002T-I/SO)
Ghi chú thiết kế
Estimated: Decoupling budget for a 16 MIPS PIC24F design. Place one 100 nF ceramic (X7R) within 5 mm of each VDD/VSS pair (pin 8 VSS, pin 13 VDD, pin 20 AVDD, pin 28 VDD), plus one 10 µF bulk on the 3.3 V regulator rail. For ADC accuracy, add a 10 nF + 1 µF RC network on AVDD/AVSS. Maintain VDD > 2.0 V during Flash writes or programming will abort; the on-board LVD can be set to 2.0 V to protect brown-out conditions.
Keep the 28-SOIC trace length under 25 mm from MCU to decoupling caps to limit switching transients. Route the analog AN0-AN4 inputs over a quiet ground island and avoid crossing digital signal traces. The OSCI/OSCO pair should be surrounded by a guarded ground ring and trace lengths matched within 1 mm. Place the MCLR pull-up (10 kΩ) close to pin 1 with a 100 nF cap to ground for noise immunity; this combination prevents spurious resets from EMI events.
Three recurring mistakes when bringing up PIC24FJ32GA002 designs: (1) leaving the JTAG/ICSP pins RB6/RB7 as floating GPIO without disabling the debugger fuse, causing boot lock-out; (2) configuring ADC channels on pins that double as digital outputs, leading to channel-crosstalk in scans; (3) failing to enable the RTCC write-protect bit, allowing the RTCC to be overwritten during a brown-out. Always read the device configuration bits before locking the code and verify the JTAG enable/disable fuse for production builds.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade (I suffix) covers -40C to +85C; Extended grade (E suffix) covers -40C to +125C. AEC-Q100 not qualified - choose AEC-Q100 PIC24 variants for automotive.
