PIC24FJ128GA308T-I/PT - 128KB Flash 16-bit XLP MCU, TQFP-80
MPN: PIC24FJ128GA308T-I/PT ✓ Hoạt độngPIC24FJ128GA308T-I/PT Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ128GA308T-I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC24FJ128GA308T-I/PT (cùng hình factor và footprint) — khác nhau ở Core, Package, RoHS Status, I/O Pins, Program Memory (Flash).
PIC24FJ128GA308-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ128GA310T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GA306T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC24FJ128DA210T-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GA310T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ128GA308T-I/PT Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | 80-pin TQFP (PT), 12x12 mm |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | 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 |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ128GA308T-I/PT
| Chân 1 | OSC1/RA0 — Oscillator crystal input or GPIO RA0 |
| Chân 2 | OSC2/RA1 — Oscillator crystal output or GPIO RA1 |
| Chân 3 | RA2 — GPIO RA2 |
| Chân 4 | RA3 — GPIO RA3 |
| Chân 5 | RA4 — GPIO RA4 |
| Chân 6 | RA5 — GPIO RA5 |
| Chân 7 | RA6 — GPIO RA6 |
| Chân 8 | RA7 — GPIO RA7 |
| Chân 9 | RB0 — GPIO RB0 / programming PGD |
| Chân 10 | RB1 — GPIO RB1 / programming PGC |
| Chân 11 | RB2 — GPIO RB2 |
| Chân 12 | RB3 — GPIO RB3 |
| Chân 13 | RB4 — GPIO RB4 |
| Chân 14 | RB5 — GPIO RB5 |
| Chân 15 | RB6 — GPIO RB6 |
| Chân 16 | RB7 — GPIO RB7 |
| Chân 17 | RB8 — GPIO RB8 |
| Chân 18 | RB9 — GPIO RB9 |
| Chân 19 | RB10 — GPIO RB10 |
| Chân 20 | RB11 — GPIO RB11 |
| Chân 21 | RB12 — GPIO RB12 |
| Chân 22 | RB13 — GPIO RB13 |
| Chân 23 | RB14 — GPIO RB14 |
| Chân 24 | RB15 — GPIO RB15 |
| Chân 25 | RC0 — GPIO RC0 |
| Chân 26 | RC1 — GPIO RC1 |
| Chân 27 | RC2 — GPIO RC2 |
| Chân 28 | RC3 — GPIO RC3 |
| Chân 29 | RC4 — GPIO RC4 |
| Chân 30 | RC5 — GPIO RC5 |
| Chân 31 | RC6 — GPIO RC6 |
| Chân 32 | RC7 — GPIO RC7 |
| Chân 33 | RC8 — GPIO RC8 |
| Chân 34 | RC9 — GPIO RC9 |
| Chân 35 | RC10 — GPIO RC10 |
| Chân 36 | RC11 — GPIO RC11 |
| Chân 37 | RC12 — GPIO RC12 |
| Chân 38 | RC13 — GPIO RC13 |
| Chân 39 | RC14 — GPIO RC14 |
| Chân 40 | RC15 — GPIO RC15 |
| Chân 41 | RD0 — GPIO RD0 |
| Chân 42 | RD1 — GPIO RD1 |
| Chân 43 | RD2 — GPIO RD2 |
| Chân 44 | RD3 — GPIO RD3 |
| Chân 45 | RD4 — GPIO RD4 |
| Chân 46 | RD5 — GPIO RD5 |
| Chân 47 | RD6 — GPIO RD6 |
| Chân 48 | RD7 — GPIO RD7 |
| Chân 49 | RD8 — GPIO RD8 |
| Chân 50 | RD9 — GPIO RD9 |
| Chân 51 | RD10 — GPIO RD10 |
| Chân 52 | RD11 — GPIO RD11 |
| Chân 53 | RD12 — GPIO RD12 |
| Chân 54 | RD13 — GPIO RD13 |
| Chân 55 | RD14 — GPIO RD14 |
| Chân 56 | RD15 — GPIO RD15 |
| Chân 57 | RE0 — GPIO RE0 |
| Chân 58 | RE1 — GPIO RE1 |
| Chân 59 | RE2 — GPIO RE2 |
| Chân 60 | RE3 — GPIO RE3 |
| Chân 61 | RE4 — GPIO RE4 |
| Chân 62 | RE5 — GPIO RE5 |
| Chân 63 | RE6 — GPIO RE6 |
| Chân 64 | RE7 — GPIO RE7 |
| Chân 65 | RF0 — GPIO RF0 |
| Chân 66 | RF1 — GPIO RF1 |
| Chân 67 | RF2 — GPIO RF2 |
| Chân 68 | RF3 — GPIO RF3 |
| Chân 69 | RF4 — GPIO RF4 |
| Chân 70 | RF5 — GPIO RF5 |
| Chân 71 | RF6 — GPIO RF6 |
| Chân 72 | RF7 — GPIO RF7 |
| Chân 73 | RF8 — GPIO RF8 |
| Chân 74 | RG0 — GPIO RG0 |
| Chân 75 | RG1 — GPIO RG1 |
| Chân 76 | RG2 — GPIO RG2 / LCD COM0 |
| Chân 77 | RG3 — GPIO RG3 / LCD COM1 |
| Chân 78 | Vbat — RTC backup battery supply input |
| Chân 79 | VDD — Positive supply voltage (2.0-3.6V) |
| Chân 80 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC24FJ128GA308T-I/PT phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ128GA308T-I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Pin-compatible upgrade path within same package (vsPIC24FJ128GA310T-I/PT)
- Integrated segmented LCD driver reduces BOM (vsPIC24FJ128GA006-I/PT (64-pin TQFP, no LCD driver))
- Hardware crypto engine for secure boot and authentication (vsPIC24FJ128DA210T-I/PT)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.