PIC24FJ128GA308T-I/PT - 128KB Flash 16-bit XLP MCU, TQFP-80
MPN: PIC24FJ128GA308T-I/PT ✓ פעילPIC24FJ128GA308T-I/PT סקירה
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.
חלופות תחליף ישיר עבור PIC24FJ128GA308T-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC24FJ128GA308T-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Core, Package, RoHS Status, I/O Pins, Program Memory (Flash).
PIC24FJ128GA308-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ128GA310T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ128GA306T-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ128DA210T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GA310T-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ128GA308T-I/PT דירוגים מרביים ומאפיינים חשמליים
| 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 |
| מארז | 80-pin TQFP (PT), 12x12 mm |
| טמפרטורת פעולה | -40 C to +85 C (Industrial) |
| סוג הרכבה | 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 |
| רמת MSL | 3 (per JEDEC J-STD-020) |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC24FJ128GA308T-I/PT
| פין 1 | OSC1/RA0 — Oscillator crystal input or GPIO RA0 |
| פין 2 | OSC2/RA1 — Oscillator crystal output or GPIO RA1 |
| פין 3 | RA2 — GPIO RA2 |
| פין 4 | RA3 — GPIO RA3 |
| פין 5 | RA4 — GPIO RA4 |
| פין 6 | RA5 — GPIO RA5 |
| פין 7 | RA6 — GPIO RA6 |
| פין 8 | RA7 — GPIO RA7 |
| פין 9 | RB0 — GPIO RB0 / programming PGD |
| פין 10 | RB1 — GPIO RB1 / programming PGC |
| פין 11 | RB2 — GPIO RB2 |
| פין 12 | RB3 — GPIO RB3 |
| פין 13 | RB4 — GPIO RB4 |
| פין 14 | RB5 — GPIO RB5 |
| פין 15 | RB6 — GPIO RB6 |
| פין 16 | RB7 — GPIO RB7 |
| פין 17 | RB8 — GPIO RB8 |
| פין 18 | RB9 — GPIO RB9 |
| פין 19 | RB10 — GPIO RB10 |
| פין 20 | RB11 — GPIO RB11 |
| פין 21 | RB12 — GPIO RB12 |
| פין 22 | RB13 — GPIO RB13 |
| פין 23 | RB14 — GPIO RB14 |
| פין 24 | RB15 — GPIO RB15 |
| פין 25 | RC0 — GPIO RC0 |
| פין 26 | RC1 — GPIO RC1 |
| פין 27 | RC2 — GPIO RC2 |
| פין 28 | RC3 — GPIO RC3 |
| פין 29 | RC4 — GPIO RC4 |
| פין 30 | RC5 — GPIO RC5 |
| פין 31 | RC6 — GPIO RC6 |
| פין 32 | RC7 — GPIO RC7 |
| פין 33 | RC8 — GPIO RC8 |
| פין 34 | RC9 — GPIO RC9 |
| פין 35 | RC10 — GPIO RC10 |
| פין 36 | RC11 — GPIO RC11 |
| פין 37 | RC12 — GPIO RC12 |
| פין 38 | RC13 — GPIO RC13 |
| פין 39 | RC14 — GPIO RC14 |
| פין 40 | RC15 — GPIO RC15 |
| פין 41 | RD0 — GPIO RD0 |
| פין 42 | RD1 — GPIO RD1 |
| פין 43 | RD2 — GPIO RD2 |
| פין 44 | RD3 — GPIO RD3 |
| פין 45 | RD4 — GPIO RD4 |
| פין 46 | RD5 — GPIO RD5 |
| פין 47 | RD6 — GPIO RD6 |
| פין 48 | RD7 — GPIO RD7 |
| פין 49 | RD8 — GPIO RD8 |
| פין 50 | RD9 — GPIO RD9 |
| פין 51 | RD10 — GPIO RD10 |
| פין 52 | RD11 — GPIO RD11 |
| פין 53 | RD12 — GPIO RD12 |
| פין 54 | RD13 — GPIO RD13 |
| פין 55 | RD14 — GPIO RD14 |
| פין 56 | RD15 — GPIO RD15 |
| פין 57 | RE0 — GPIO RE0 |
| פין 58 | RE1 — GPIO RE1 |
| פין 59 | RE2 — GPIO RE2 |
| פין 60 | RE3 — GPIO RE3 |
| פין 61 | RE4 — GPIO RE4 |
| פין 62 | RE5 — GPIO RE5 |
| פין 63 | RE6 — GPIO RE6 |
| פין 64 | RE7 — GPIO RE7 |
| פין 65 | RF0 — GPIO RF0 |
| פין 66 | RF1 — GPIO RF1 |
| פין 67 | RF2 — GPIO RF2 |
| פין 68 | RF3 — GPIO RF3 |
| פין 69 | RF4 — GPIO RF4 |
| פין 70 | RF5 — GPIO RF5 |
| פין 71 | RF6 — GPIO RF6 |
| פין 72 | RF7 — GPIO RF7 |
| פין 73 | RF8 — GPIO RF8 |
| פין 74 | RG0 — GPIO RG0 |
| פין 75 | RG1 — GPIO RG1 |
| פין 76 | RG2 — GPIO RG2 / LCD COM0 |
| פין 77 | RG3 — GPIO RG3 / LCD COM1 |
| פין 78 | Vbat — RTC backup battery supply input |
| פין 79 | VDD — Positive supply voltage (2.0-3.6V) |
| פין 80 | VSS — Ground reference |
יישומים טיפוסיים
PIC24FJ128GA308T-I/PT מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24FJ128GA308T-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- Pin-compatible upgrade path within same package (לעומתPIC24FJ128GA310T-I/PT)
- Integrated segmented LCD driver reduces BOM (לעומתPIC24FJ128GA006-I/PT (64-pin TQFP, no LCD driver))
- Hardware crypto engine for secure boot and authentication (לעומתPIC24FJ128DA210T-I/PT)
הערות תכנון
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.
מידע על תאימות
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.