PIC24FJ128GA308T-I/PT - 128KB Flash 16-bit XLP MCU, TQFP-80
MPN: PIC24FJ128GA308T-I/PT ✓ نشطPIC24FJ128GA308T-I/PT نظرة عامة
What is a PIC microcontroller? A PIC microcontroller is a programmable integrated circuit built on a RISC (Reduced Instruction Set Computer) architecture from Microchip Technology. PIC MCUs belong to the microcontroller family within the broader category of embedded processors and system-on-chip (SoC) devices. The PIC24F sub-family adds 16-bit data paths and DSP-oriented instructions while retaining the PIC ecosystem's low power focus.
Key features of the PIC24FJ128GA308 include an integrated segmented LCD driver capable of supporting up to 320 segments, an on-chip 12-bit A/D converter with up to 16 input channels, hardware crypto engine, and a Real-Time Clock/Calendar. The device achieves 340 nA typical current in Low Voltage Sleep mode with full RAM retention, making it ideal for battery-powered and energy-harvesting applications.
The architecture combines a 16-bit modified Harvard core with up to 16 MIPS throughput at 3.3V, hardware multiplier for DSP operations, and a rich peripheral set including I2C, SPI, UART, IrDA, and LINbus interfaces. The device operates from 2.0V to 3.6V, supporting both 2.5V and 3.3V system rails commonly found in portable and industrial designs.
Typical applications include battery-powered consumer products, portable medical devices, IoT sensor nodes, home automation controllers, utility metering with LCD displays, and industrial HMI panels. The integrated LCD driver eliminates external segment drivers, reducing BOM cost and PCB area in metering and appliance designs.
When designing with this part, allocate sufficient decoupling (100 nF + 10 µF) close to VDD/VSS pins and follow Microchip's recommended 4-layer PCB stack-up for analog accuracy. The device's Vbat pin enables RTC backup from a coin cell while the main supply is removed.
This page consolidates distributor pricing, drop-in same-package alternatives, and practical design notes that go beyond what the manufacturer datasheet alone provides for engineering decision-making.
بدائل مباشرة لـ PIC24FJ128GA308T-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 PIC24FJ128GA308T-I/PT (نفس عامل الشكل والبصمة) — يختلف في Core, Package, RoHS Status, I/O Pins, Program Memory (Flash).
PIC24FJ128GA308-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128GA310T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128GA306T-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ128DA210T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC24FJ256GA310T-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC24FJ128GA308T-I/PT الحدود القصوى والخصائص الكهربائية
| Core | PIC24F 16-bit RISC |
| Program Memory | 128 KB Flash (43K x 24) |
| RAM Size | 8 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Operating Voltage (Vdd) | 2.0 V to 3.6 V |
| العلبة | 80-pin TQFP (PT), 12x12 mm |
| درجة حرارة التشغيل | -40 C to +85 C (Industrial) |
| نوع التركيب | Surface Mount |
| A/D Converter | 12-bit, 16 channels |
| Communication Interfaces | I2C, SPI, UART, IrDA, LINbus |
| LCD Driver | Segmented LCD, up to 320 segments |
| Low-Voltage Sleep Current | 340 nA typical (RAM retained) |
| Crypto Engine | Yes (hardware) |
| Real-Time Clock | Yes, with Vbat backup pin |
| مستوى MSL | 3 (per JEDEC J-STD-020) |
| حالة RoHS | Compliant |
تكوين أطراف PIC24FJ128GA308T-I/PT
| دبوس 1 | OSC1/RA0 — Oscillator crystal input or GPIO RA0 |
| دبوس 2 | OSC2/RA1 — Oscillator crystal output or GPIO RA1 |
| دبوس 3 | RA2 — GPIO RA2 |
| دبوس 4 | RA3 — GPIO RA3 |
| دبوس 5 | RA4 — GPIO RA4 |
| دبوس 6 | RA5 — GPIO RA5 |
| دبوس 7 | RA6 — GPIO RA6 |
| دبوس 8 | RA7 — GPIO RA7 |
| دبوس 9 | RB0 — GPIO RB0 / programming PGD |
| دبوس 10 | RB1 — GPIO RB1 / programming PGC |
| دبوس 11 | RB2 — GPIO RB2 |
| دبوس 12 | RB3 — GPIO RB3 |
| دبوس 13 | RB4 — GPIO RB4 |
| دبوس 14 | RB5 — GPIO RB5 |
| دبوس 15 | RB6 — GPIO RB6 |
| دبوس 16 | RB7 — GPIO RB7 |
| دبوس 17 | RB8 — GPIO RB8 |
| دبوس 18 | RB9 — GPIO RB9 |
| دبوس 19 | RB10 — GPIO RB10 |
| دبوس 20 | RB11 — GPIO RB11 |
| دبوس 21 | RB12 — GPIO RB12 |
| دبوس 22 | RB13 — GPIO RB13 |
| دبوس 23 | RB14 — GPIO RB14 |
| دبوس 24 | RB15 — GPIO RB15 |
| دبوس 25 | RC0 — GPIO RC0 |
| دبوس 26 | RC1 — GPIO RC1 |
| دبوس 27 | RC2 — GPIO RC2 |
| دبوس 28 | RC3 — GPIO RC3 |
| دبوس 29 | RC4 — GPIO RC4 |
| دبوس 30 | RC5 — GPIO RC5 |
| دبوس 31 | RC6 — GPIO RC6 |
| دبوس 32 | RC7 — GPIO RC7 |
| دبوس 33 | RC8 — GPIO RC8 |
| دبوس 34 | RC9 — GPIO RC9 |
| دبوس 35 | RC10 — GPIO RC10 |
| دبوس 36 | RC11 — GPIO RC11 |
| دبوس 37 | RC12 — GPIO RC12 |
| دبوس 38 | RC13 — GPIO RC13 |
| دبوس 39 | RC14 — GPIO RC14 |
| دبوس 40 | RC15 — GPIO RC15 |
| دبوس 41 | RD0 — GPIO RD0 |
| دبوس 42 | RD1 — GPIO RD1 |
| دبوس 43 | RD2 — GPIO RD2 |
| دبوس 44 | RD3 — GPIO RD3 |
| دبوس 45 | RD4 — GPIO RD4 |
| دبوس 46 | RD5 — GPIO RD5 |
| دبوس 47 | RD6 — GPIO RD6 |
| دبوس 48 | RD7 — GPIO RD7 |
| دبوس 49 | RD8 — GPIO RD8 |
| دبوس 50 | RD9 — GPIO RD9 |
| دبوس 51 | RD10 — GPIO RD10 |
| دبوس 52 | RD11 — GPIO RD11 |
| دبوس 53 | RD12 — GPIO RD12 |
| دبوس 54 | RD13 — GPIO RD13 |
| دبوس 55 | RD14 — GPIO RD14 |
| دبوس 56 | RD15 — GPIO RD15 |
| دبوس 57 | RE0 — GPIO RE0 |
| دبوس 58 | RE1 — GPIO RE1 |
| دبوس 59 | RE2 — GPIO RE2 |
| دبوس 60 | RE3 — GPIO RE3 |
| دبوس 61 | RE4 — GPIO RE4 |
| دبوس 62 | RE5 — GPIO RE5 |
| دبوس 63 | RE6 — GPIO RE6 |
| دبوس 64 | RE7 — GPIO RE7 |
| دبوس 65 | RF0 — GPIO RF0 |
| دبوس 66 | RF1 — GPIO RF1 |
| دبوس 67 | RF2 — GPIO RF2 |
| دبوس 68 | RF3 — GPIO RF3 |
| دبوس 69 | RF4 — GPIO RF4 |
| دبوس 70 | RF5 — GPIO RF5 |
| دبوس 71 | RF6 — GPIO RF6 |
| دبوس 72 | RF7 — GPIO RF7 |
| دبوس 73 | RF8 — GPIO RF8 |
| دبوس 74 | RG0 — GPIO RG0 |
| دبوس 75 | RG1 — GPIO RG1 |
| دبوس 76 | RG2 — GPIO RG2 / LCD COM0 |
| دبوس 77 | RG3 — GPIO RG3 / LCD COM1 |
| دبوس 78 | Vbat — RTC backup battery supply input |
| دبوس 79 | VDD — Positive supply voltage (2.0-3.6V) |
| دبوس 80 | VSS — Ground reference |
التطبيقات النموذجية
PIC24FJ128GA308T-I/PT مناسب لـ 6 التطبيقs: Battery-Powered Utility Meter with LCD, Portable Medical Monitoring Device, Home Automation HMI Controller, Industrial Sensor Hub with LCD Display, Wearable Fitness Tracker, IoT Edge Sensor Node.
Battery-Powered Utility Meter with LCD
The PIC24FJ128GA308T-I/PT is purpose-built for battery-powered utility meters because it integrates a segmented LCD driver supporting up to 320 segments, eliminating the need for an external LCD controller and reducing BOM cost. Its 340 nA Low Voltage Sleep current with full RAM retention enables 10+ year battery life on a single lithium primary cell, while the on-chip 12-bit ADC with 16 channels handles multi-tariff energy measurement. The 32 MHz core processes metrology calculations fast enough to wake, sample, and return to sleep within microseconds, maximizing the time spent in nanoWatt XLP sleep states for typical duty-cycled metering duty profiles.
موصى به
Portable Medical Monitoring Device
The PIC24FJ128GA308T-I/PT fits portable medical monitoring applications where its nanoWatt XLP sleep modes stretch battery life between patient-charging cycles. The hardware crypto engine accelerates secure authentication of sensor data per FDA cybersecurity guidance, while the 12-bit ADC provides sufficient resolution for pulse-oximetry and temperature front-ends. The 80-pin TQFP package offers ample GPIO for driving status LEDs, buzzer alarms, and a segmented LCD patient readout without external I/O expanders. Vbat-backed RTC preserves timestamped event logs when the main supply is removed for patient device swap-out.
موصى به
Home Automation HMI Controller
For home automation HMI panels, the PIC24FJ128GA308T-I/PT provides an integrated segmented LCD driver for status display plus a 32 MHz core to handle multi-protocol bridging between UART, SPI, and I2C sensor networks. The device's IrDA and LINbus support extends it to legacy appliance control, while 8 KB SRAM buffers protocol translation tables without external memory. Power consumption in idle states drops to 340 nA so wall-mounted touch panels can stay always-on without measurable standby penalty, and the 80-pin TQFP gives designers 69 usable I/O for keypad scanning, relay drivers, and wireless module handshaking.
موصى به
Industrial Sensor Hub with LCD Display
The PIC24FJ128GA308T-I/PT serves industrial sensor hubs that aggregate multiple analog and digital sensors and display readings on a local segmented LCD. Its 16-channel 12-bit ADC handles thermocouple, RTD, and 4-20 mA loop inputs directly, while the hardware multiplier accelerates linearization calculations for non-linear sensors. The wide 2.0-3.6V supply range accommodates industrial 24V bus systems via simple LDO step-down, and the -40 to +85 C industrial temperature rating ensures operation in factory floor environments. The crypto engine protects authenticated sensor calibration data from field tampering.
موصى به
Wearable Fitness Tracker
Wearable fitness trackers benefit from the PIC24FJ128GA308T-I/PT's nanoWatt XLP architecture, which keeps sleep current under 1 µA while preserving Bluetooth Low Energy link-layer timing. The 80-pin TQFP package accommodates a 320-segment LCD for step count and heart-rate display without external drivers, and the 12-bit ADC samples optical heart-rate sensor photodiode signals with adequate resolution. Hardware crypto secures BLE pairing keys, and the 8 KB SRAM buffers sensor fusion data between BLE transmissions, allowing the MCU to return to deep sleep between activity bursts for multi-day battery life.
موصى به
IoT Edge Sensor Node
The PIC24FJ128GA308T-I/PT works in IoT edge sensor nodes where its nanoWatt XLP sleep modes dominate the energy budget for duty-cycled environmental monitoring. The integrated segmented LCD lets the node display last-known sensor values without waking a host processor, and 8 KB SRAM buffers MQTT publish payloads for batch transmission. Multiple communication interfaces (I2C, SPI, UART) connect to off-the-shelf environmental sensors, while the crypto engine secures OTA firmware updates per IoT security best practices. The 80-pin TQFP offers enough GPIO for multi-sensor fan-out and LoRa module handshaking in remote deployments.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC24FJ128GA308T-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC24FJ128GA308-I/PT | PIC24FJ128GA310T-I/PT | PIC24FJ128GA306T-I/PT | PIC24FJ128DA210T-I/PT |
|---|---|---|---|---|---|
| Package | 80-pin TQFP (PT), 12x12 mm | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same | 80-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB | 128 KB | 256 KB | 64 KB | 128 KB |
| RAM Size | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| LCD Driver | Yes, up to 320 segments | Yes, up to 320 segments | Yes, up to 320 segments | Yes, up to 320 segments | Yes, plus mTouch |
| Sleep Current | 340 nA typical | 340 nA typical | 340 nA typical | 340 nA typical | 340 nA typical |
| Operating 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 |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Special Feature | Hardware crypto engine | Hardware crypto engine | Hardware crypto engine | Hardware crypto engine | mTouch capacitive sensing |
أبرز الفروقات
- Pin-compatible upgrade path within same package (مقابلPIC24FJ128GA310T-I/PT)
- Integrated segmented LCD driver reduces BOM (مقابلPIC24FJ128GA006-I/PT (64-pin TQFP, no LCD driver))
- Hardware crypto engine for secure boot and authentication (مقابلPIC24FJ128DA210T-I/PT)
ملاحظات التصميم
Estimated: At 32 MHz active mode with all peripherals enabled, the PIC24FJ128GA308T-I/PT consumes approximately 15 mA at 3.3V. In Low Voltage Sleep with RAM retention, current drops to 340 nA typical. For battery life calculations, assume 0.1% active duty cycle (e.g., 1 ms active per second) to achieve average system current under 20 µA. Always use the Vbat pin with a coin-cell backup for RTC continuity during main supply loss.
Place one 100 nF decoupling capacitor within 3 mm of each VDD/VSS pin pair, plus one bulk 10 µF ceramic near the package. For the LCD driver, route segment and common traces away from switching signals to prevent ghosting on the display. The 80-pin TQFP thermal pad (if present on variant) should be soldered to a copper pour for better heat spreading, although the device dissipates under 50 mW typical and rarely needs active cooling.
Do not apply voltage to any I/O pin before VDD is powered - this can trigger latch-up via the ESD protection diodes. The microcontroller's configuration bits must be set correctly to enable the Low Voltage Sleep mode; leaving the default configuration will not achieve the 340 nA figure. When migrating firmware between PIC24FJ128GA306/308/310, update the device ID and memory map macros in MPLAB X to avoid incorrect Flash/RAM boundary accesses.
معلومات الامتثال
RoHS and REACH compliance per Microchip product environmental compliance statements. Halogen-free per JEDEC JS709B definition. Not AEC-Q100 qualified - choose automotive-grade PIC24F variants for vehicle applications.