PIC24FJ128GA108T-I/PT - 16-bit 32MHz 128KB Flash MCU TQFP-80 | Microchip
MPN: PIC24FJ128GA108T-I/PT ✓ Hoạt độngPIC24FJ128GA108T-I/PT Tóm tắt
What is a 16-bit Flash microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (RAM), and programmable peripherals such as timers, UARTs, SPIs, and I2Cs. A 16-bit Flash MCU, like the PIC24FJ128GA108, uses a 16-bit data path (versus 8-bit for legacy MCUs), enabling higher arithmetic throughput and richer peripheral integration. Within the product hierarchy, the PIC24FJ128GA108 sits as: microcontroller -> 16-bit MCU -> PIC24F family -> general-purpose Flash MCU -> semiconductor IC.
Key features include Peripheral Pin Select (PPS) for flexible remapping of digital peripherals, three I2C, three SPI, four UART interfaces, 23 independent timers, and a 10-bit ADC with up to 16 channels depending on package variant. The device also offers a Real-Time Clock/Calendar (RTCC) module and an ultra-low-power sleep current below 100 nA.
The PIC24FJ128GA108 uses Microchip's modified Harvard architecture with a 16-bit wide instruction set and 24-bit instructions, delivering 16 MIPS at 32 MHz from a single 3.3V supply. It features a hardware multiply/divide unit, DMA controller, and a parallel master port for external bus expansion where supported.
Typical applications include industrial sensor hubs, low-power connected devices, USB/HID peripherals, multi-protocol gateways, and human-machine interface (HMI) controllers. The combination of large RAM (16 KB), multiple serial ports, and PPS makes the part especially useful as a system coordinator in mixed-signal embedded designs.
When designing with this MCU, plan the JTAG/ICSP pin allocation early, since pins used for in-circuit programming must not be repurposed as outputs. The 80-pin TQFP variant exposes the maximum peripheral count in the family, while smaller 64-pin and 100-pin variants trade peripheral count for board area.
This page synthesizes distributor pricing, drop-in alternative MPNs from the same family, and practical design notes that complement the manufacturer datasheet with cross-brand and cross-package context.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ128GA108T-I/PT — 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 PIC24FJ128GA108T-I/PT (cùng hình factor và footprint) — khác nhau ở Package, Standby Current, Timers, Core Architecture, I/O Pins.
PIC24FJ128GA108-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ192GA108T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA108-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA108T-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Program Memory (Flash) | 128 KB (43K x 24 instructions) |
| Data RAM | 16 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 80-pin TQFP (PT) 12x12 mm |
| I/O Pins | 69 (per manufacturer overview) |
| ADC | 10-bit |
| UART Modules | 4 |
| SPI Modules | 3 |
| I2C Modules | 3 |
| Timers | 23 (independent) |
| Peripheral Pin Select (PPS) | Yes |
| Standby Current | <100 nA (typical, per Microchip product page) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant (per Microchip product page) |
Cấu hình chân PIC24FJ128GA108T-I/PT
| Chân 1 | RP0/CN16/RB0 — Remappable peripheral / change notification |
| Chân 2 | RP1/CN17/RB1 — Remappable peripheral / change notification |
| Chân 3 | RP2/CN18/RB2 — Remappable peripheral / change notification |
| Chân 4 | RP3/CN19/RB3 — Remappable peripheral / change notification |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RP4/CN20/RB4 — Remappable peripheral / change notification |
| Chân 7 | RP5/CN21/RB5 — Remappable peripheral / change notification |
| Chân 8 | RP6/CN22/RB6 — Remappable peripheral / change notification |
| Chân 9 | RP7/CN23/RB7 — Remappable peripheral / change notification |
| Chân 10 | RP8/CN24/RB8 — Remappable peripheral / change notification |
| Chân 11 | RP9/CN25/RB9 — Remappable peripheral / change notification |
| Chân 12 | VSS — Ground reference |
| Chân 13 | VDD — Positive supply (2.0V-3.6V) |
| Chân 14 | RP10/CN26/RB10 — Remappable peripheral / change notification |
| Chân 15 | RP11/CN27/RB11 — Remappable peripheral / change notification |
| Chân 16 | RP12/CN28/RB12 — Remappable peripheral / change notification |
| Chân 17 | RP13/CN29/RB13 — Remappable peripheral / change notification |
| Chân 18 | RP14/CN30/RB14 — Remappable peripheral / change notification |
| Chân 19 | RP15/CN31/RB15 — Remappable peripheral / change notification |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply (2.0V-3.6V) |
| Chân 22 | OSC1/RA0 — Oscillator input / general I/O |
| Chân 23 | OSC2/RA1 — Oscillator output / general I/O |
| Chân 24 | RA2 — General I/O |
| Chân 25 | RA3 — General I/O |
| Chân 26 | RA4 — General I/O |
| Chân 27 | RA5 — General I/O |
| Chân 28 | RA6 — General I/O |
| Chân 29 | RA7 — General I/O |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply (2.0V-3.6V) |
| Chân 32 | RP16/CN32/RC0 — Remappable peripheral / change notification |
| Chân 33 | RP17/CN33/RC1 — Remappable peripheral / change notification |
| Chân 34 | RP18/CN34/RC2 — Remappable peripheral / change notification |
| Chân 35 | RP19/CN35/RC3 — Remappable peripheral / change notification |
| Chân 36 | RP20/CN36/RC4 — Remappable peripheral / change notification |
| Chân 37 | RP21/CN37/RC5 — Remappable peripheral / change notification |
| Chân 38 | RP22/CN38/RC6 — Remappable peripheral / change notification |
| Chân 39 | RP23/CN39/RC7 — Remappable peripheral / change notification |
| Chân 40 | VSS — Ground reference |
| Chân 41 | VDD — Positive supply (2.0V-3.6V) |
| Chân 42 | RP24/CN40/RC8 — Remappable peripheral / change notification |
| Chân 43 | RP25/CN41/RC9 — Remappable peripheral / change notification |
| Chân 44 | VSS — Ground reference |
| Chân 45 | VDD — Positive supply (2.0V-3.6V) |
| Chân 46 | SDA1/RP26/CN42/RC10 — I2C1 data / remappable peripheral |
| Chân 47 | SCL1/RP27/CN43/RC11 — I2C1 clock / remappable peripheral |
| Chân 48 | SDA2/RP28/CN44/RC12 — I2C2 data / remappable peripheral |
| Chân 49 | SCL2/RP29/CN45/RC13 — I2C2 clock / remappable peripheral |
| Chân 50 | RP30/CN46/RC14 — Remappable peripheral / change notification |
| Chân 51 | OSC1/CLKI/RC15 — Oscillator input / general I/O |
| Chân 52 | VSS — Ground reference |
| Chân 53 | VDD — Positive supply (2.0V-3.6V) |
| Chân 54 | RD0 — General I/O |
| Chân 55 | RD1 — General I/O |
| Chân 56 | RD2 — General I/O |
| Chân 57 | RD3 — General I/O |
| Chân 58 | RD4 — General I/O |
| Chân 59 | RD5 — General I/O |
| Chân 60 | RD6 — General I/O |
| Chân 61 | RD7 — General I/O |
| Chân 62 | VSS — Ground reference |
| Chân 63 | VDD — Positive supply (2.0V-3.6V) |
| Chân 64 | RE0 — General I/O |
| Chân 65 | RE1 — General I/O |
| Chân 66 | RE2 — General I/O |
| Chân 67 | RE3 — General I/O |
| Chân 68 | RE4 — General I/O |
| Chân 69 | RE5 — General I/O |
| Chân 70 | RE6 — General I/O |
| Chân 71 | RE7 — General I/O |
| Chân 72 | VSS — Ground reference |
| Chân 73 | VDD — Positive supply (2.0V-3.6V) |
| Chân 74 | RF0 — General I/O |
| Chân 75 | RF1 — General I/O |
| Chân 76 | RF2 — General I/O |
| Chân 77 | RF3 — General I/O |
| Chân 78 | RF4 — General I/O |
| Chân 79 | RF5 — General I/O |
| Chân 80 | MCLR — Master Clear (reset, active low) |
Ứng dụng tiêu biểu
PIC24FJ128GA108T-I/PT phù hợp cho 6 Áp dụngs: Industrial Sensor Hub / Multi-Protocol Gateway, Low-Power IoT Edge Device / Battery Sensor Node, USB HID / Human Interface Device Controller, Human-Machine Interface (HMI) / Display Controller, Automotive Body Electronics (Non-Safety), Motor Control / BLDC FOC Driver.
Industrial Sensor Hub / Multi-Protocol Gateway
The PIC24FJ128GA108T-I/PT fits industrial sensor hubs because its 128 KB Flash holds full Modbus/RTU and CANopen protocol stacks, while 16 KB RAM buffers multi-sensor data streams. Three SPI, three I2C, and four UART interfaces let a single MCU aggregate RS-485 sensor buses, I2C environmental sensors, and SPI accelerometers concurrently. PPS allows layout-friendly pin assignment when board routing is constrained, and the -40C to +85C industrial range supports factory-floor deployment. With sub-100 nA standby, the part is ideal for solar-powered or battery-backed remote telemetry units.
Được đề xuất
Low-Power IoT Edge Device / Battery Sensor Node
The PIC24FJ128GA108T-I/PT suits battery-powered IoT nodes because its standby current under 100 nA lets multi-year coin-cell operation when the MCU wakes only on RTCC alarm or external interrupt. The 32 MHz/16 MIPS throughput runs BLE-through-UART relay firmware, LoRaWAN device drivers, or simple sensor pre-processing between sleeps. 16 KB RAM supports local data aggregation before transmit bursts, and 128 KB Flash accommodates over-the-air bootloader and signed firmware updates. The 2.0V-3.6V supply range is compatible with single-cell Li-Ion or 2xAA battery stacks.
Được đề xuất
USB HID / Human Interface Device Controller
The PIC24FJ128GA108T-I/PT is well-suited for USB HID peripherals because the PIC24F USB-capable family supports USB 2.0 Full-Speed device operation with on-chip transceiver. 16 KB RAM is sufficient for HID report buffers, keyboard matrix scanning, and consumer-control descriptors in 128 KB Flash. Four UART channels support auxiliary interfaces (e.g., fingerprint modules, RFID readers) alongside USB, and 23 timers simplify debounce, scan-rate, and LED PWM control. PPS lets the designer keep USB pins on fixed positions while remapping other peripherals to optimize PCB routing.
Được đề xuất
Human-Machine Interface (HMI) / Display Controller
The PIC24FJ128GA108T-I/PT serves as an HMI controller for small graphical or character LCDs, where 128 KB Flash stores custom font tables, menu trees, and bitmap assets while 16 KB RAM provides frame buffers. The four UART channels support RS-232/RS-485 host communication, and PPS allows flexible assignment of PWM, I2C, and SPI for backlight, touch controller, and TFT display drivers. At 32 MHz/16 MIPS, the core handles touch scanning and animated UI without external graphics accelerators, reducing BOM cost. The industrial -40C to +85C range supports outdoor kiosks and factory HMI panels.
Được đề xuất
Automotive Body Electronics (Non-Safety)
The PIC24FJ128GA108T-I/PT fits non-safety automotive body modules like climate-control panels, seat-position controllers, and interior lighting hubs. Industrial-grade parts are acceptable for cabin environments; for under-hood deployment, the AEC-Q100-qualified PIC24FJ128GA108-E/PT extended-temperature variant is preferred. Four UART channels drive LIN-bus stacks via external transceivers, and 128 KB Flash stores multi-language UI strings and CAN/LIN gateway tables. The 32 MHz core provides real-time response for capacitive touch and rotary encoder inputs.
Được đề xuất
Motor Control / BLDC FOC Driver
The PIC24FJ128GA108T-I/PT can host sensorless or sensored BLDC field-oriented-control (FOC) firmware in fans, pumps, and small appliances, with 128 KB Flash fitting Microchip's MPLAB X FOC framework plus custom application code. 23 timers provide PWM, input capture, and quadrature decoding for Hall or encoder feedback. The 16 MIPS throughput handles single-axis FOC at switching frequencies up to 20 kHz. Four UART channels expose Modbus or proprietary diagnostic interfaces to the host controller, while PPS lets engineers route PWM outputs to safe board locations.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ128GA108T-I/PT — 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 | PIC24FJ128GA108-I/PT | PIC24FJ192GA108T-I/PT | PIC24FJ128GA108-E/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (PT) 12x12 mm | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same | TQFP-80 (PT) 12x12 mm - same |
| Flash Memory | 128 KB | 128 KB | 192 KB (+50%) | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Core Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tray |
Bảo phân biệt quan trọng
- Same silicon with Tape & Reel packaging for SMT production lines (vsPIC24FJ128GA108-I/PT)
- Industrial temperature grade (-40C to +85C) is standard for non-safety commercial/industrial designs (vsPIC24FJ128GA108-E/PT)
- 128 KB Flash matches most general-purpose firmware stacks without forced upgrade (vsPIC24FJ192GA108T-I/PT)
Ghi chú thiết kế
Decouple every VDD/VSS pair of the PIC24FJ128GA108T-I/PT with a 100 nF ceramic capacitor placed within 5 mm of the pin. Add a bulk 4.7 uF or larger capacitor near the package. The PIC24F core draws short switching spikes when peripherals enable; per Microchip's PIC24F family datasheet, insufficient decoupling can trigger brown-out resets. Place the bulk cap before any LDO ferrite bead to suppress switching noise from outside the MCU.
Use a four-layer PCB with a continuous ground plane under the TQFP-80 footprint to reduce EMI and provide thermal spreading. Route PPS remappable signals to vias close to the destination pins to simplify later firmware remapping. Keep the 32 kHz crystal traces short and surrounded by ground pour to avoid coupling noise into the RTCC oscillator, especially in low-power designs where RTCC drift directly impacts sleep-cycle accuracy.
Do not repurpose PGC/PGD (ICSP) pins as outputs in production firmware - this will lock out in-circuit programming. Leave MCLR pulled up through a 10 kohm resistor to VDD; never leave it floating, or the MCU may intermittently reset from noise. When migrating code from PIC24FJ128GA008 to PIC24FJ128GA108, audit PPS configuration: the GA108 requires explicit PPS unlock/lock sequences via __builtin_write_OSCCONL, which the GA008 family did not always mandate.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial grade only - not AEC-Q100 qualified; for automotive choose PIC24FJ128GA108-E/PT or AEC-Q100-qualified dsPIC/PIC variants.
