PIC24FJ128GA308T-I/PT - 128KB Flash 16-bit XLP MCU, TQFP-80
MPN: PIC24FJ128GA308T-I/PT ✓ فعالPIC24FJ128GA308T-I/PT نمای کلی
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.
جایگزین‌های drop-in برای PIC24FJ128GA308T-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 PIC24FJ128GA308T-I/PT (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Core, Package, RoHS Status, I/O Pins, Program Memory (Flash).
PIC24FJ128GA308-I/PT
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC24FJ128GA310T-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ128GA306T-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ128DA210T-I/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC24FJ256GA310T-I/PT
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
PIC24FJ128GA308T-I/PT حداکثر مقادیر مجاز و مشخصات الکتریکی
| 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 |
| بسته‌بندی | 80-pin TQFP (PT), 12x12 mm |
| دمای کاری | -40 C to +85 C (Industrial) |
| نوع نصب | 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 |
| سطح MSL | 3 (per JEDEC J-STD-020) |
| وضعیت RoHS | Compliant |
پیکربندی پین PIC24FJ128GA308T-I/PT
| پین 1 | OSC1/RA0 — Oscillator crystal input or GPIO RA0 |
| پین 2 | OSC2/RA1 — Oscillator crystal output or GPIO RA1 |
| پین 3 | RA2 — GPIO RA2 |
| پین 4 | RA3 — GPIO RA3 |
| پین 5 | RA4 — GPIO RA4 |
| پین 6 | RA5 — GPIO RA5 |
| پین 7 | RA6 — GPIO RA6 |
| پین 8 | RA7 — GPIO RA7 |
| پین 9 | RB0 — GPIO RB0 / programming PGD |
| پین 10 | RB1 — GPIO RB1 / programming PGC |
| پین 11 | RB2 — GPIO RB2 |
| پین 12 | RB3 — GPIO RB3 |
| پین 13 | RB4 — GPIO RB4 |
| پین 14 | RB5 — GPIO RB5 |
| پین 15 | RB6 — GPIO RB6 |
| پین 16 | RB7 — GPIO RB7 |
| پین 17 | RB8 — GPIO RB8 |
| پین 18 | RB9 — GPIO RB9 |
| پین 19 | RB10 — GPIO RB10 |
| پین 20 | RB11 — GPIO RB11 |
| پین 21 | RB12 — GPIO RB12 |
| پین 22 | RB13 — GPIO RB13 |
| پین 23 | RB14 — GPIO RB14 |
| پین 24 | RB15 — GPIO RB15 |
| پین 25 | RC0 — GPIO RC0 |
| پین 26 | RC1 — GPIO RC1 |
| پین 27 | RC2 — GPIO RC2 |
| پین 28 | RC3 — GPIO RC3 |
| پین 29 | RC4 — GPIO RC4 |
| پین 30 | RC5 — GPIO RC5 |
| پین 31 | RC6 — GPIO RC6 |
| پین 32 | RC7 — GPIO RC7 |
| پین 33 | RC8 — GPIO RC8 |
| پین 34 | RC9 — GPIO RC9 |
| پین 35 | RC10 — GPIO RC10 |
| پین 36 | RC11 — GPIO RC11 |
| پین 37 | RC12 — GPIO RC12 |
| پین 38 | RC13 — GPIO RC13 |
| پین 39 | RC14 — GPIO RC14 |
| پین 40 | RC15 — GPIO RC15 |
| پین 41 | RD0 — GPIO RD0 |
| پین 42 | RD1 — GPIO RD1 |
| پین 43 | RD2 — GPIO RD2 |
| پین 44 | RD3 — GPIO RD3 |
| پین 45 | RD4 — GPIO RD4 |
| پین 46 | RD5 — GPIO RD5 |
| پین 47 | RD6 — GPIO RD6 |
| پین 48 | RD7 — GPIO RD7 |
| پین 49 | RD8 — GPIO RD8 |
| پین 50 | RD9 — GPIO RD9 |
| پین 51 | RD10 — GPIO RD10 |
| پین 52 | RD11 — GPIO RD11 |
| پین 53 | RD12 — GPIO RD12 |
| پین 54 | RD13 — GPIO RD13 |
| پین 55 | RD14 — GPIO RD14 |
| پین 56 | RD15 — GPIO RD15 |
| پین 57 | RE0 — GPIO RE0 |
| پین 58 | RE1 — GPIO RE1 |
| پین 59 | RE2 — GPIO RE2 |
| پین 60 | RE3 — GPIO RE3 |
| پین 61 | RE4 — GPIO RE4 |
| پین 62 | RE5 — GPIO RE5 |
| پین 63 | RE6 — GPIO RE6 |
| پین 64 | RE7 — GPIO RE7 |
| پین 65 | RF0 — GPIO RF0 |
| پین 66 | RF1 — GPIO RF1 |
| پین 67 | RF2 — GPIO RF2 |
| پین 68 | RF3 — GPIO RF3 |
| پین 69 | RF4 — GPIO RF4 |
| پین 70 | RF5 — GPIO RF5 |
| پین 71 | RF6 — GPIO RF6 |
| پین 72 | RF7 — GPIO RF7 |
| پین 73 | RF8 — GPIO RF8 |
| پین 74 | RG0 — GPIO RG0 |
| پین 75 | RG1 — GPIO RG1 |
| پین 76 | RG2 — GPIO RG2 / LCD COM0 |
| پین 77 | RG3 — GPIO RG3 / LCD COM1 |
| پین 78 | Vbat — RTC backup battery supply input |
| پین 79 | VDD — Positive supply voltage (2.0-3.6V) |
| پین 80 | VSS — Ground reference |
کاربردهای معمول
PIC24FJ128GA308T-I/PT مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC24FJ128GA308T-I/PT — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- Pin-compatible upgrade path within same package (در مقابلPIC24FJ128GA310T-I/PT)
- Integrated segmented LCD driver reduces BOM (در مقابلPIC24FJ128GA006-I/PT (64-pin TQFP, no LCD driver))
- Hardware crypto engine for secure boot and authentication (در مقابلPIC24FJ128DA210T-I/PT)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.