PIC24FJ128GA108-I/PT - 16-Bit 32MHz 128KB Flash MCU | Microchip
MPN: PIC24FJ128GA108-I/PT ✓ فعالPIC24FJ128GA108-I/PT نمای کلی
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash/ROM), data memory (RAM), and a configurable set of peripherals such as timers, communication controllers, and analog blocks. Within the broader semiconductor hierarchy, the PIC24FJ128GA108 sits under: microcontroller -> embedded processor -> RISC 16-bit MCU -> Flash MCU -> PIC24F family. The 24F series is Microchip's low-power eXtreme Low Power (XLP) tier designed for battery and energy-harvesting applications where standby current and peripheral flexibility matter more than raw compute throughput.
Key features include 3x I2C, 3x SPI, 4x UART channels, 23 independent timers, a 16-channel 10-bit ADC, a 9-channel 16-bit PWM/timer/capture block, and Peripheral Pin Select (PPS) that allows remapping of digital peripherals to virtually any I/O. A Real-Time Clock and Calendar (RTCC) with on-chip 32 kHz oscillator support, plus sub-100 nA standby current, enable long-life battery-backed designs. On-chip debug is supported via 2-wire ICD, and the device operates across a 2.0 V to 3.6 V range.
The architecture uses a 16-bit wide datapath with C-compiler-optimized instruction set, single-cycle hardware multiply/divide, and a deep working-register array. Combined with PPS, this greatly simplifies PCB routing in 80-TQFP designs and reduces BOM cost by eliminating external peripheral muxes.
Typical applications include industrial control panels, low-power IoT sensor hubs, consumer human-interface controllers, medical handhelds, and automotive body/comfort modules. With its large RAM, the part is well-suited to USB/HID stacks, graphics libraries, and protocol buffering.
When designing with this device, plan VDD decoupling close to every VDD/VSS pair, keep the 80-TQFP land pattern matched to a 12x12 mm thermal pad, and verify PPS register assignments against the desired pinout before PCB tape-out - changes are easier in firmware than in hardware.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the standalone Microchip datasheet, helping procurement and engineering teams make a faster selection decision.
جایگزین‌های drop-in برای PIC24FJ128GA108-I/PT — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC24FJ128GA108-I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Timers, Core Architecture, Package, Operating Temperature, ADC.
PIC24FJ128GA108-E/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ128GA108T-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ128GA010-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ128GA108-I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| Manufacturer | Microchip Technology |
| Series | PIC® 24F |
| Core Architecture | 16-bit modified Harvard |
| Core Size | 16-bit |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory | 128 KB Flash (43K x 24) |
| RAM | 16 KB |
| Number of I/O | 69 |
| بسته‌بندی | 80-TQFP (12x12 mm) |
| محدوده دمای کاری | -40C to +85C (industrial) |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| ولتاژ تغذیه | 3.3 V typical |
| Internal Oscillator | 8 MHz with 4x PLL and multiple divide options |
| ADC | 10-bit, 16 channels |
| PWM | 16-bit, 9 channels (Output Compare) |
| Timers | 23 independent (16-bit / 32-bit mix) |
| I2C | 3 channels |
| SPI | 3 channels |
| UART | 4 channels |
| Peripheral Pin Select (PPS) | Yes |
| RTCC | Yes (with on-chip 32 kHz oscillator option) |
| Standby Current | < 100 nA (XLP sleep) |
| Hardware Multiplier | 17-bit x 16-bit, single cycle |
| Hardware Divider | 16-bit / 16-bit |
| Debug Interface | 2-wire ICD (ICSP) |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC24FJ128GA108-I/PT
| پین 1 | OSC1/RC13 — Crystal oscillator input / GPIO RC13 |
| پین 2 | OSC2/RC15 — Crystal oscillator output / GPIO RC15 |
| پین 3 | SOCI/RA0 — SOSC crystal input / GPIO RA0 |
| پین 4 | SOSCO/RA1 — SOSC crystal output / GPIO RA1 |
| پین 5 | RA2 — GPIO RA2 |
| پین 6 | RA3 — GPIO RA3 |
| پین 7 | RA4 — GPIO RA4 |
| پین 8 | RA5 — GPIO RA5 |
| پین 9 | RA6 — GPIO RA6 |
| پین 10 | RA7 — GPIO RA7 |
| پین 11 | RA9 — GPIO RA9 |
| پین 12 | RA10 — GPIO RA10 |
| پین 13 | RA14 — GPIO RA14 |
| پین 14 | RA15 — GPIO RA15 |
| پین 15 | VDD — Positive supply (3.3V typical) |
| پین 16 | VSS — Ground reference |
| پین 17 | RB0 — GPIO RB0 / Programmable |
| پین 18 | RB1 — GPIO RB1 / Programmable |
| پین 19 | RB2 — GPIO RB2 / Programmable |
| پین 20 | RB3 — GPIO RB3 / Programmable |
| پین 21 | RB4 — GPIO RB4 / Programmable |
| پین 22 | RB5 — GPIO RB5 / Programmable |
| پین 23 | RB6 — GPIO RB6 / Programmable |
| پین 24 | RB7 — GPIO RB7 / Programmable |
| پین 25 | RB8 — GPIO RB8 / Programmable |
| پین 26 | RB9 — GPIO RB9 / Programmable |
| پین 27 | RB10 — GPIO RB10 / Programmable |
| پین 28 | RB11 — GPIO RB11 / Programmable |
| پین 29 | RB12 — GPIO RB12 / Programmable |
| پین 30 | RB13 — GPIO RB13 / Programmable |
| پین 31 | RB14 — GPIO RB14 / Programmable |
| پین 32 | RB15 — GPIO RB15 / Programmable |
| پین 33 | VSS — Ground reference |
| پین 34 | VDD — Positive supply (3.3V typical) |
| پین 35 | RC0 — GPIO RC0 / Programmable |
| پین 36 | RC1 — GPIO RC1 / Programmable |
| پین 37 | RC2 — GPIO RC2 / Programmable |
| پین 38 | RC3 — GPIO RC3 / Programmable |
| پین 39 | RC4 — GPIO RC4 / Programmable |
| پین 40 | RC5 — GPIO RC5 / Programmable |
| پین 41 | RC6 — GPIO RC6 / Programmable |
| پین 42 | RC7 — GPIO RC7 / Programmable |
| پین 43 | RC8 — GPIO RC8 / Programmable |
| پین 44 | RC9 — GPIO RC9 / Programmable |
| پین 45 | RC10 — GPIO RC10 / Programmable |
| پین 46 | RC11 — GPIO RC11 / Programmable |
| پین 47 | RC12 — GPIO RC12 / Programmable |
| پین 48 | RC14 — GPIO RC14 / Programmable |
| پین 49 | RD0 — GPIO RD0 / Programmable |
| پین 50 | RD1 — GPIO RD1 / Programmable |
| پین 51 | RD2 — GPIO RD2 / Programmable |
| پین 52 | RD3 — GPIO RD3 / Programmable |
| پین 53 | RD4 — GPIO RD4 / Programmable |
| پین 54 | RD5 — GPIO RD5 / Programmable |
| پین 55 | RD6 — GPIO RD6 / Programmable |
| پین 56 | RD7 — GPIO RD7 / Programmable |
| پین 57 | RD8 — GPIO RD8 / Programmable |
| پین 58 | RD9 — GPIO RD9 / Programmable |
| پین 59 | RD10 — GPIO RD10 / Programmable |
| پین 60 | RD11 — GPIO RD11 / Programmable |
| پین 61 | RD12 — GPIO RD12 / Programmable |
| پین 62 | RD13 — GPIO RD13 / Programmable |
| پین 63 | RD14 — GPIO RD14 / Programmable |
| پین 64 | RD15 — GPIO RD15 / Programmable |
| پین 65 | VSS — Ground reference |
| پین 66 | VDD — Positive supply (3.3V typical) |
| پین 67 | RE0 — GPIO RE0 / Programmable |
| پین 68 | RE1 — GPIO RE1 / Programmable |
| پین 69 | RE2 — GPIO RE2 / Programmable |
| پین 70 | RE3 — GPIO RE3 / Programmable |
| پین 71 | RE4 — GPIO RE4 / Programmable |
| پین 72 | RE5 — GPIO RE5 / Programmable |
| پین 73 | RE6 — GPIO RE6 / Programmable |
| پین 74 | RE7 — GPIO RE7 / Programmable |
| پین 75 | RE8 — GPIO RE8 / Programmable |
| پین 76 | RE9 — GPIO RE9 / Programmable |
| پین 77 | RF0 — GPIO RF0 / Programmable |
| پین 78 | RF1 — GPIO RF1 / Programmable |
| پین 79 | RF2 — GPIO RF2 / Programmable |
| پین 80 | RF3 — GPIO RF3 / Programmable |
کاربردهای معمول
PIC24FJ128GA108-I/PT مناسب است برای 6 کاربردs: Industrial Control Panel with HMI, Low-Power IoT Sensor Hub, Consumer Human-Interface Device (HID), Medical Handheld Instrument, Automotive Body/Comfort Module, Graphical Data Logger with SD Card.
Industrial Control Panel with HMI
The PIC24FJ128GA108-I/PT's 16 MIPS throughput plus 128 KB Flash and 16 KB RAM comfortably fit a multi-page LCD HMI state machine with rotary encoder debouncing. Its 69 I/O and Peripheral Pin Select let one MCU scan an 8x8 keypad matrix while driving a 4x20 character LCD, two RS-485 UART links, and an I2C GPIO expander - no external bus mux required. Sub-100 nA standby current means the RTC clock display survives a power outage for years on a coin cell. The 80-TQFP package spreads heat for 24/7 always-on panel designs, and PPS routing keeps the PCB 2-layer by avoiding crossed SPI traces.
پیشنهادی
Low-Power IoT Sensor Hub
The PIC24FJ128GA108-I/PT's eXtreme Low Power (XLP) technology with sub-100 nA standby lets a battery-driven sensor node sleep between measurements and wake on RTCC. Its 16-channel 10-bit ADC reads multiple analog sensors (temperature, humidity, battery voltage) while 3x SPI and 3x I2C connect to digital sensors and an external radio module. PPS remaps the SPI lines so the radio can share the bus with an SPI flash for non-volatile data logging. The 128 KB Flash accommodates a 6LoWPAN-style stack plus over-the-air firmware update buffer, while 16 KB RAM buffers incoming sensor bursts before the radio is woken.
پیشنهادی
Consumer Human-Interface Device (HID)
The PIC24FJ128GA108-I/PT delivers enough MIPS to scan a capacitive-touch keypad and decode USB HID via an external transceiver, while the 4 UARTs drive multiple accessory ports. Its 9-channel 16-bit Output Compare block drives RGB LED backlight PWM with hardware fade, offloading the CPU from timing-critical lighting tasks. The 80-TQFP's 69 I/O expose every key in a 10x10 matrix plus a 5-segment slider without external scan ICs. The integrated CTMU simplifies the capacitive touch measurement, and the device's 2.0-3.6 V range allows direct Li-ion battery operation for portable consumer products.
پیشنهادی
Medical Handheld Instrument
The PIC24FJ128GA108-I/PT's large 128 KB Flash holds the IEC 62304 risk-class A/B firmware plus a secure bootloader, and 16 KB RAM supports real-time waveform buffering in handheld diagnostic devices. Its 16-channel 10-bit ADC samples bio-signal channels simultaneously with the on-chip 16-bit timers, while PPS lets designers place sensitive analog traces far from digital switching. The RTCC timestamps each measurement with year/month/day for clinical traceability. Sub-100 nA standby preserves coin-cell RTC backup for shelf life measured in years, critical for medical device inventory.
پیشنهادی
Automotive Body/Comfort Module
The PIC24FJ128GA108-I/PT's wide operating temperature (-40C to +85C industrial) and Peripheral Pin Select make it a strong fit for non-safety automotive body modules such as seat controllers, mirror adjusters, and HVAC blend-door drivers. Its 4x UARTs interface multiple LIN-bus transceivers via software, while the 9-channel 16-bit PWM drives small DC motors with hardware dead-band insertion. The 80-TQFP package and 69 I/O consolidate several discrete controllers into one MCU, reducing wiring harness complexity. The internal 8 MHz oscillator with PLL saves an external crystal and improves EMI robustness.
پیشنهادی
Graphical Data Logger with SD Card
The PIC24FJ128GA108-I/PT's 128 KB Flash stores bootloader and logging firmware, while its 16 KB RAM plus a FatFs SD-card driver (SPI) logs multi-channel data for hours without overflow. Its 16-channel 10-bit ADC reads thermocouples, pressure sensors, and strain gauges, with PPS routing the SD SPI bus to short pins away from analog traces for noise immunity. The 4 UARTs expose a debug console and GPS receiver concurrently, and the RTCC stamps each log entry with wall-clock time. The 80-TQFP package's thermal headroom keeps the part cool during sustained multi-channel logging at 16 MIPS.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC24FJ128GA108-I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC24FJ128GA108-E/PT | PIC24FJ128GA108T-I/PT | PIC24FJ128GA010-I/PT | PIC24FJ128GA006-I/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 64-TQFP - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / MIPS | PIC24F 16-bit / 16 MIPS | PIC24F 16-bit / 16 MIPS | PIC24F 16-bit / 16 MIPS | PIC24F 16-bit / 16 MIPS | PIC24F 16-bit / 16 MIPS |
| Program Flash | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| I/O Count | 69 | 69 | 69 | 53 | 53 |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade, T&R) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| 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 |
| Carrier / Packaging | Tray | Tray | Tape & Reel | Tray | Tray |
| Lifecycle Status | Active | Active | Active | Active | Active |
تفاوت‌های کلیدی
- Highest I/O count in the PIC24FJ128GA1xx 80-TQFP family (در مقابلPIC24FJ128GA010-I/PT)
- Drop-in extended-temperature option without firmware change (در مقابلPIC24FJ128GA108-E/PT)
- Sub-100 nA standby current for battery longevity (در مقابلPIC24FJ128GA006-I/PT)
یادداشت‌های طراحی
Estimated: at 3.3 V, 32 MHz, full peripheral set, the PIC24FJ128GA108 draws about 25 mA active and under 100 nA in XLP sleep. Decouple every VDD/VSS pair with 100 nF ceramic plus one bulk 10 uF near the chip. For battery designs, use the RTCC + SOSC to retain timekeeping while the core is off; this is the only sub-100 nA mode supported. Never leave any VDD pin floating - it floats the internal regulator and risks latch-up.
The 80-TQFP has fine 0.5 mm pitch leads. Use a 4-layer stack-up with a continuous ground plane under the package to (a) reduce EMI on analog ADC inputs and (b) provide thermal spreading. Route the SOSC 32 kHz crystal traces as short as possible, guarded by ground, and place the load caps within 5 mm of the OSC1/OSC2 pins. Keep ADC traces away from SPI/UART switching lines and consider guard rings around analog pins.
PPS remapping happens AFTER reset - peripherals default to fixed pins on startup. If a peripheral that uses PPS is enabled before its PPS register is written, the I/O will not function. Always configure PPS in the early initialization code. Also, the MCLR pin is bidirectional by default on this family; an external supervisor or push-button must use open-drain to avoid contention. Finally, do not exceed 10 mA per I/O pin or 200 mA total across the package - the MCU lacks internal current limiting.
اطلاعات انطباق
RoHS compliant per Microchip product page. The I-grade is industrial (-40C to +85C); for AEC-Q100 automotive applications choose the -E grade or higher. Halogen-free status not explicitly published in the verified web data.
