PIC24FJ128GA108-I/PT - 16-Bit 32MHz 128KB Flash MCU | Microchip
MPN: PIC24FJ128GA108-I/PT ✓ نشطPIC24FJ128GA108-I/PT نظرة عامة
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.
بدائل مباشرة لـ PIC24FJ128GA108-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC24FJ128GA108-I/PT (نفس عامل الشكل والبصمة) — يختلف في Timers, Core Architecture, Package, Operating Temperature, ADC.
PIC24FJ128GA108-E/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GA108T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GA010-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GA108-I/PT الحدود القصوى والخصائص الكهربائية
| 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 |
| العلبة | 80-TQFP (12x12 mm) |
| نطاق درجة حرارة التشغيل | -40C to +85C (industrial) |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| جهد التغذية | 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 التركيب | Surface Mount |
| حالة RoHS | Compliant |
تكوين أطراف PIC24FJ128GA108-I/PT
| دبوس 1 | OSC1/RC13 — Crystal oscillator input / GPIO RC13 |
| دبوس 2 | OSC2/RC15 — Crystal oscillator output / GPIO RC15 |
| دبوس 3 | SOCI/RA0 — SOSC crystal input / GPIO RA0 |
| دبوس 4 | SOSCO/RA1 — SOSC crystal output / GPIO RA1 |
| دبوس 5 | RA2 — GPIO RA2 |
| دبوس 6 | RA3 — GPIO RA3 |
| دبوس 7 | RA4 — GPIO RA4 |
| دبوس 8 | RA5 — GPIO RA5 |
| دبوس 9 | RA6 — GPIO RA6 |
| دبوس 10 | RA7 — GPIO RA7 |
| دبوس 11 | RA9 — GPIO RA9 |
| دبوس 12 | RA10 — GPIO RA10 |
| دبوس 13 | RA14 — GPIO RA14 |
| دبوس 14 | RA15 — GPIO RA15 |
| دبوس 15 | VDD — Positive supply (3.3V typical) |
| دبوس 16 | VSS — Ground reference |
| دبوس 17 | RB0 — GPIO RB0 / Programmable |
| دبوس 18 | RB1 — GPIO RB1 / Programmable |
| دبوس 19 | RB2 — GPIO RB2 / Programmable |
| دبوس 20 | RB3 — GPIO RB3 / Programmable |
| دبوس 21 | RB4 — GPIO RB4 / Programmable |
| دبوس 22 | RB5 — GPIO RB5 / Programmable |
| دبوس 23 | RB6 — GPIO RB6 / Programmable |
| دبوس 24 | RB7 — GPIO RB7 / Programmable |
| دبوس 25 | RB8 — GPIO RB8 / Programmable |
| دبوس 26 | RB9 — GPIO RB9 / Programmable |
| دبوس 27 | RB10 — GPIO RB10 / Programmable |
| دبوس 28 | RB11 — GPIO RB11 / Programmable |
| دبوس 29 | RB12 — GPIO RB12 / Programmable |
| دبوس 30 | RB13 — GPIO RB13 / Programmable |
| دبوس 31 | RB14 — GPIO RB14 / Programmable |
| دبوس 32 | RB15 — GPIO RB15 / Programmable |
| دبوس 33 | VSS — Ground reference |
| دبوس 34 | VDD — Positive supply (3.3V typical) |
| دبوس 35 | RC0 — GPIO RC0 / Programmable |
| دبوس 36 | RC1 — GPIO RC1 / Programmable |
| دبوس 37 | RC2 — GPIO RC2 / Programmable |
| دبوس 38 | RC3 — GPIO RC3 / Programmable |
| دبوس 39 | RC4 — GPIO RC4 / Programmable |
| دبوس 40 | RC5 — GPIO RC5 / Programmable |
| دبوس 41 | RC6 — GPIO RC6 / Programmable |
| دبوس 42 | RC7 — GPIO RC7 / Programmable |
| دبوس 43 | RC8 — GPIO RC8 / Programmable |
| دبوس 44 | RC9 — GPIO RC9 / Programmable |
| دبوس 45 | RC10 — GPIO RC10 / Programmable |
| دبوس 46 | RC11 — GPIO RC11 / Programmable |
| دبوس 47 | RC12 — GPIO RC12 / Programmable |
| دبوس 48 | RC14 — GPIO RC14 / Programmable |
| دبوس 49 | RD0 — GPIO RD0 / Programmable |
| دبوس 50 | RD1 — GPIO RD1 / Programmable |
| دبوس 51 | RD2 — GPIO RD2 / Programmable |
| دبوس 52 | RD3 — GPIO RD3 / Programmable |
| دبوس 53 | RD4 — GPIO RD4 / Programmable |
| دبوس 54 | RD5 — GPIO RD5 / Programmable |
| دبوس 55 | RD6 — GPIO RD6 / Programmable |
| دبوس 56 | RD7 — GPIO RD7 / Programmable |
| دبوس 57 | RD8 — GPIO RD8 / Programmable |
| دبوس 58 | RD9 — GPIO RD9 / Programmable |
| دبوس 59 | RD10 — GPIO RD10 / Programmable |
| دبوس 60 | RD11 — GPIO RD11 / Programmable |
| دبوس 61 | RD12 — GPIO RD12 / Programmable |
| دبوس 62 | RD13 — GPIO RD13 / Programmable |
| دبوس 63 | RD14 — GPIO RD14 / Programmable |
| دبوس 64 | RD15 — GPIO RD15 / Programmable |
| دبوس 65 | VSS — Ground reference |
| دبوس 66 | VDD — Positive supply (3.3V typical) |
| دبوس 67 | RE0 — GPIO RE0 / Programmable |
| دبوس 68 | RE1 — GPIO RE1 / Programmable |
| دبوس 69 | RE2 — GPIO RE2 / Programmable |
| دبوس 70 | RE3 — GPIO RE3 / Programmable |
| دبوس 71 | RE4 — GPIO RE4 / Programmable |
| دبوس 72 | RE5 — GPIO RE5 / Programmable |
| دبوس 73 | RE6 — GPIO RE6 / Programmable |
| دبوس 74 | RE7 — GPIO RE7 / Programmable |
| دبوس 75 | RE8 — GPIO RE8 / Programmable |
| دبوس 76 | RE9 — GPIO RE9 / Programmable |
| دبوس 77 | RF0 — GPIO RF0 / Programmable |
| دبوس 78 | RF1 — GPIO RF1 / Programmable |
| دبوس 79 | RF2 — GPIO RF2 / Programmable |
| دبوس 80 | RF3 — GPIO RF3 / Programmable |
التطبيقات النموذجية
PIC24FJ128GA108-I/PT مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC24FJ128GA108-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- Highest I/O count in the PIC24FJ128GA1xx 80-TQFP family (مقابلPIC24FJ128GA010-I/PT)
- Drop-in extended-temperature option without firmware change (مقابلPIC24FJ128GA108-E/PT)
- Sub-100 nA standby current for battery longevity (مقابلPIC24FJ128GA006-I/PT)
ملاحظات التصميم
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.
معلومات الامتثال
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.
