PIC24FJ32GA104T-I/ML - 16-bit 32KB Flash MCU | Microchip
MPN: PIC24FJ32GA104T-I/ML ✓ Hoạt độngPIC24FJ32GA104T-I/ML Tóm tắt
A 16-bit microcontroller (MCU) is a microprocessor that processes data and instructions 16 bits at a time, sitting between 8-bit MCUs and 32-bit MCUs in the embedded hierarchy. 16-bit -> microcontroller -> embedded processor -> semiconductor. The PIC24FJ family specifically targets low-power, mixed-signal applications where 8-bit MCUs lack the throughput but 32-bit MCUs over-consume power, making PIC24F parts a sweet spot for portable medical, sensor, and human-interface designs.
Key features include 32 KB Flash (11K x 24 organization), 8 KB SRAM, hardware 16x16 multiply and 32/16 divide in single-cycle execution, and a C-compiler-optimized instruction set. Peripherals span up to 5 timers, 3 UART, 3 SPI, 2 I2C, 10-bit ADC up to 500 ksps with up to 13 input channels, and a Real-Time Clock Calendar (RTCC). The nanoWatt XLP modes offer deep sleep currents below 1 µA (per datasheet characterization), enabling years of operation from coin-cell or lithium batteries.
Architecturally, the device uses a modified Harvard bus with separate program and data paths, supporting linear program memory up to 32 KB and linear data memory up to 8 KB. Five I/O ports (RA/RB/RC/RD/RG) provide up to 35 digital I/O pins with individual bit-manipulation control via Peripheral Pin Select (PPS). The 2.5V-3.6V single-supply range and -40°C to +85°C industrial temperature support enable deployment in consumer, industrial, and portable medical end products.
Typical applications include handheld medical instruments (glucometers, pulse oximeters), IoT sensor nodes, home automation controllers, HVAC thermostats, and consumer electronics with graphical LCD or capacitive touch interfaces. The PIC24FJ32GA104 family also serves as a low-power companion MCU in multi-processor designs where a higher-performance host offloads always-on sensor and housekeeping tasks.
When designing with this MCU, allocate the PPS mapping carefully because each peripheral signal can be routed to one of several pins; conflicts between UART, SPI, and I2C assignments must be resolved at compile time. The QFN-44 package benefits from a central thermal pad that should be soldered to a ground pour for both electrical ground and thermal dissipation.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC24FJ family, and practical design notes that complement - but do not replace - the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ32GA104T-I/ML — 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 PIC24FJ32GA104T-I/ML (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, I/O Pins, Program Memory (Flash).
PIC24FJ32GA104-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32GA104T-E/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ64GA104T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ64GA104-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA104-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32GA104T-I/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data SRAM | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.5 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Hộp | 44-pin QFN (8x8 mm) with Exposed Pad |
| I/O Pins | Up to 35 |
| ADC | 10-bit, up to 13 channels, 500 ksps |
| Communication Interfaces | 3x UART, 3x SPI, 2x I2C |
| Timers | 5x 16-bit |
| Hardware Multiply | 16x16 single-cycle |
| Hardware Divide | 32/16 single-cycle |
| Power Management | nanoWatt XLP ultra-low-power modes |
| Peripheral Pin Select (PPS) | Yes |
| Real-Time Clock Calendar (RTCC) | Yes |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ32GA104T-I/ML
| Chân 1 | RP5/RB5 — Remappable peripheral pin / GPIO RB5 |
| Chân 2 | RP6/RB6 — Remappable peripheral pin / GPIO RB6 |
| Chân 3 | RP7/RB7 — Remappable peripheral pin / GPIO RB7 |
| Chân 4 | RP8/RB8 — Remappable peripheral pin / GPIO RB8 |
| Chân 5 | RP9/RB9 — Remappable peripheral pin / GPIO RB9 |
| Chân 6 | VSS — Ground |
| Chân 7 | VDD — Positive supply (2.5V-3.6V) |
| Chân 8 | RP10/RB10 — Remappable peripheral pin / GPIO RB10 |
| Chân 9 | RP11/RB11 — Remappable peripheral pin / GPIO RB11 |
| Chân 10 | RP12/RB12 — Remappable peripheral pin / GPIO RB12 |
| Chân 11 | RP13/RB13 — Remappable peripheral pin / GPIO RB13 |
| Chân 12 | RP14/RB14 — Remappable peripheral pin / GPIO RB14 |
| Chân 13 | RP15/RB15 — Remappable peripheral pin / GPIO RB15 |
| Chân 14 | AVSS — Analog ground |
| Chân 15 | AVDD — Analog positive supply |
| Chân 16 | RA0/AN0 — GPIO RA0 / analog input AN0 |
| Chân 17 | RA1/AN1 — GPIO RA1 / analog input AN1 |
| Chân 18 | RA2/AN2 — GPIO RA2 / analog input AN2 |
| Chân 19 | RA3/AN3 — GPIO RA3 / analog input AN3 |
| Chân 20 | RA4/AN4 — GPIO RA4 / analog input AN4 |
| Chân 21 | RA5/AN5 — GPIO RA5 / analog input AN5 |
| Chân 22 | RA6/OSC2 — GPIO RA6 / oscillator output |
| Chân 23 | RA7/OSC1 — GPIO RA7 / oscillator input |
| Chân 24 | RC1 — GPIO RC1 |
| Chân 25 | RC2 — GPIO RC2 |
| Chân 26 | RC3 — GPIO RC3 |
| Chân 27 | RC4 — GPIO RC4 |
| Chân 28 | RD0 — GPIO RD0 |
| Chân 29 | RD1 — GPIO RD1 |
| Chân 30 | RD2 — GPIO RD2 |
| Chân 31 | RD3 — GPIO RD3 |
| Chân 32 | RD4 — GPIO RD4 |
| Chân 33 | RD5 — GPIO RD5 |
| Chân 34 | RD6 — GPIO RD6 |
| Chân 35 | RD7 — GPIO RD7 |
| Chân 36 | RG6 — GPIO RG6 |
| Chân 37 | RG7 — GPIO RG7 |
| Chân 38 | RG8 — GPIO RG8 |
| Chân 39 | RG9 — GPIO RG9 |
| Chân 40 | MCLR — Master clear reset input (active low) |
| Chân 41 | RP0/RB0 — Remappable peripheral pin / GPIO RB0 |
| Chân 42 | RP1/RB1 — Remappable peripheral pin / GPIO RB1 |
| Chân 43 | RP2/RB2 — Remappable peripheral pin / GPIO RB2 |
| Chân 44 | RP3/RB3 — Remappable peripheral pin / GPIO RB3 / PGEC3 |
| Chân EP | EP — Exposed thermal pad - connect to ground |
Ứng dụng tiêu biểu
PIC24FJ32GA104T-I/ML phù hợp cho 6 Áp dụngs: Handheld Medical Instruments, Battery-Powered IoT Sensor Nodes, HVAC Thermostats and Climate Controllers, Consumer Electronics with LCD/Touch Interfaces, Industrial Sensor and Control Modules, Portable Data Loggers and Wearables.
Handheld Medical Instruments
The PIC24FJ32GA104T-I/ML suits handheld medical devices such as glucometers, pulse oximeters, and portable ECG monitors where battery life and mixed-signal performance are critical. Its nanoWatt XLP deep-sleep currents below 1 µA and 13-channel 10-bit ADC at 500 ksps support multi-sensor signal chains (SpO2 photodiode, temperature, battery monitor) on a single 3.3 V rail. The 32 KB Flash holds typical RTOS-free firmware for display drivers, sensor fusion, and BLE command stacks. Compared with 8-bit PIC16 MCUs, the 16 MIPS throughput runs PID blood-pressure cuff control loops in real time without offloading to a DSP.
Được đề xuất
Battery-Powered IoT Sensor Nodes
For IoT sensor nodes transmitting temperature, humidity, or air-quality data over Sub-GHz or BLE, the PIC24FJ32GA104T-I/ML delivers years of operation from a single CR2032 coin cell when paired with a sleeping radio. Its 2.5 V-3.6 V supply range supports direct coin-cell or 2xAA operation, and the RTCC module timestamps sensor readings during deep-sleep wake cycles without external components. The PPS remap feature lets designers route SPI to a sub-GHz transceiver and UART to a debug port without rewiring the PCB - a tangible layout advantage over fixed-pin PIC18 devices. The 35 available I/O pins also accommodate button inputs, status LEDs, and an I2C sensor expansion bus simultaneously.
Được đề xuất
HVAC Thermostats and Climate Controllers
HVAC thermostat designs use the PIC24FJ32GA104T-I/ML to drive character or graphical LCDs, scan capacitive touch keypads, and run proportional control loops for relay triac switching. The 13-channel ADC reads NTC thermistors, humidity sensors, and supply current shunts, while three UART ports can simultaneously drive a Modbus slave, an external Wi-Fi module, and a debug console. Compared with 32-bit Cortex-M0+ MCUs at similar price, the PIC24FJ32GA104 draws roughly one-third the deep-sleep current thanks to nanoWatt XLP modes, extending HVAC backup-battery life when AC mains is lost.
Được đề xuất
Consumer Electronics with LCD/Touch Interfaces
Small consumer appliances such as coffee makers, multicookers, and smart scales benefit from the PIC24FJ32GA104T-I/ML's combination of LCD segment drivers, mTouch capacitive sensing, and 16 MIPS throughput. The PPS peripheral pin select lets one MCU drive a 4x4 keypad matrix, a 4-digit 7-segment LCD, and an SPI TFT color display - all without external logic. The 8 KB SRAM buffers graphics frames while 32 KB Flash holds multilingual UI strings and recipe databases. Compared with discrete 8-bit MCU + LCD-driver two-chip designs, the integrated approach reduces BOM cost by 15-25% and PCB area by roughly one-third.
Được đề xuất
Industrial Sensor and Control Modules
In factory automation peripherals like panel meters, flow controllers, and 4-20 mA loop-powered transmitters, the PIC24FJ32GA104T-I/ML provides deterministic 16 MIPS performance for PID loops while operating from a single 3.3 V rail. The 5x 16-bit timers capture pulse-train flow-meter signals with sub-microsecond resolution, and the 10-bit ADC digitizes 4-20 mA current-loop inputs at 500 ksps for downstream averaging. The -40 °C to +85 °C industrial temperature range covers most control-cabinet environments. The QFN-44 package with central thermal pad simplifies PCB thermal layout in enclosed IP65 enclosures where convection cooling is limited.
Được đề xuất
Portable Data Loggers and Wearables
Wearable fitness bands and portable data loggers rely on the PIC24FJ32GA104T-I/ML for low-power motion sensing, BLE command handling, and Flash-resident data logging. Its nanoWatt XLP modes maintain RTCC operation from a coin cell for over a year, while 8 KB SRAM buffers accelerometer and gyroscope burst samples before batch-flushing to Flash. Three SPI buses let the MCU simultaneously interface an SPI Flash memory, an SPI BLE module, and an SPI motion sensor - all routed via PPS without pin conflicts. The QFN-44 (8x8 mm) footprint fits inside wristband form factors where PCB real estate is at a premium.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ32GA104T-I/ML — 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 | PIC24FJ32GA104-I/ML | PIC24FJ64GA104T-I/ML | PIC24FJ128GA104-I/ML |
|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 64 KB | 128 KB |
| Data SRAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V |
| I/O Pins | 35 | 35 | 35 | 35 |
| Packaging | Tape & Reel | Tube | Tape & Reel | Tube |
| Temperature Grade | Industrial (-40 °C to +85 °C) | Industrial (-40 °C to +85 °C) | Industrial (-40 °C to +85 °C) | Industrial (-40 °C to +85 °C) |
Bảo phân biệt quan trọng
- Identical silicon with broader distribution channel availability (vsPIC24FJ32GA104-I/ML)
- Doubles Flash capacity for firmware growth headroom (vsPIC24FJ64GA104T-I/ML)
- Code-density upgrade quadruples Flash within the same QFN-44 package (vsPIC24FJ128GA104-I/ML)
Ghi chú thiết kế
The 44-pin QFN package has a central exposed pad (pin EP) that MUST be soldered to a ground pour for both electrical grounding and thermal dissipation. Per the PIC24FJ64GA104 Family datasheet, missing this solder connection increases thermal resistance by 30-50% and may cause ADC offset errors from insufficient analog ground referencing. Recommended land pattern: 8.0 x 8.0 mm body with 0.5 mm pitch pads and a 4.5 x 4.5 mm central thermal pad with 9-13 thermal via array to the inner ground plane.
Place a 0.1 µF ceramic decoupling capacitor within 3 mm of each VDD pin and a single 10 µF bulk capacitor near the package. Per the family datasheet, the analog AVDD pin requires its own 0.1 µF + 10 µF LC filter network to keep ADC noise below 1 LSB. Estimated: at 32 MHz CPU + ADC active, peak current draw approaches 25 mA, so the regulator source impedance must stay below 0.5 Ω to maintain regulation during transient load steps.
When using Peripheral Pin Select (PPS), configure the PPS lock (IOLOCK) bit only after all remappable peripheral mappings are assigned - attempting to change a PPS register after IOLOCK is set requires an unlock sequence. Per the PIC24FJ64GA104 Family datasheet, IOLOCK is enabled by default after reset to prevent accidental remapping during noise events. Additionally, do not float unused I/O pins - configure them as outputs driving low to minimize current draw in deep-sleep modes.
Route the 32.768 kHz crystal traces (SOSCO/SOSCI) as short as possible (under 5 mm) and guard them with a ground ring to minimize RTC timing jitter. Per the family datasheet, parasitic capacitance above 5 pF on these traces will shift the RTCC timebase by several seconds per day. Also keep the analog ADC input traces away from switching digital lines such as the SPI clock to preserve 10-bit ADC accuracy - target 60 dB or better SNR at full-scale input.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - for automotive applications consult the PIC24FJxxxGA104 AEC-Q100 qualified variants. Halogen-free status not explicitly stated in the verified data.