PIC24FJ512GL408-I/PT - 512KB Flash 16-bit LCD MCU | Microchip
MPN: PIC24FJ512GL408-I/PT ✓ Hoạt độngPIC24FJ512GL408-I/PT Tóm tắt
A 16-bit microcontroller (MCU) is a single-chip computer that uses a 16-bit data path, instruction word, and register file. Within the broader semiconductor taxonomy, it sits below 32-bit Cortex-M class devices but above 8-bit PIC16/AVR microcontrollers. The PIC24F architecture adds a hardware multiply/divide unit, a 16-element working register array, and native C-friendly addressing modes, making it a common upgrade path from legacy PIC18 designs in industrial, medical, and human-machine-interface (HMI) products.
Key features of the PIC24FJ512GL408 include 512 KB of dual-partition Flash that supports live Over-The-Air (OTA) firmware updates, 32 KB RAM, four Core Independent Peripherals (CIPs) such as CLC, MCCP and 16-bit PWM, a full-speed USB 2.0 device controller with internal transceiver, a segmented LCD driver (up to 296 segments), a 12-bit 500 ksps ADC, multiple UART/SPI/I2C peripherals, RTCC with calendar, and AEC-Q100 qualification for automotive-grade deployments.
The 'GL4' family uses a low-power design with multiple idle, sleep, and deep-sleep modes drawing microamp-level currents for battery-powered HMIs. Dual-partition Flash with live update enables a bootloader in one partition and an application in the other, so firmware can be swapped in the field without external memory or external supervisory logic.
Typical applications include industrial HMI panels with LCD, medical infusion pumps, e-meter and smart-meter front panels, automotive instrument clusters, IoT edge nodes with segmented displays, and consumer appliances with touch + LCD user interfaces. Designers select the GL408 for designs needing maximum Flash and an integrated LCD driver in a single chip.
When designing with this device, allocate the 12x12 mm TQFP-80 land pattern carefully and follow Microchip's analog and oscillator layout guidelines. Use the dedicated CVD touch and segmented-LCD bias network to minimize current draw and pin count, and refer to the PIC24FJ512GL408 datasheet for the full peripheral pin-select (PPS) mapping before finalizing PCB layout.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ512GL408-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 PIC24FJ512GL408-I/PT (cùng hình factor và footprint) — khác nhau ở LCD Controller, Operating Temperature, ADC, Package, USB.
PIC24FJ512GL408-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GL408-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL408-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ512GL406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GL408-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ512GL408-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC24F (16-bit) with MIPS16e ISA |
| Program Flash | 512 KB (512K x 8) ECC Flash |
| SRAM | 32 KB |
| Operating Frequency | 32 MHz (16 MIPS) internal |
| Điện áp cung cấp | 2.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| I/O Pins | 70 user I/O |
| Hộp | 80-pin TQFP (12x12 mm) |
| LCD Controller | Integrated segmented LCD driver |
| ADC | 12-bit A/D converter |
| USB | USB 2.0 Full-Speed Device with internal transceiver |
| Timers | Multiple 16-bit timer/capture/PWM channels |
| Communication | UART, SPI, I2C with PPS mapping |
| AEC-Q100 | Qualified (automotive grade) |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân PIC24FJ512GL408-I/PT
| Chân 1 | RG15 — I/O port |
| Chân 2 | RG0 — I/O port / LCD segment |
| Chân 3 | RG1 — I/O port / LCD segment |
| Chân 4 | RG2 — I/O port / LCD segment |
| Chân 5 | RG3 — I/O port / LCD segment |
| Chân 6 | RG4 — I/O port / LCD segment |
| Chân 7 | RG5 — I/O port / LCD segment |
| Chân 8 | RG6 — I/O port / LCD segment |
| Chân 9 | RG7 — I/O port / LCD segment |
| Chân 10 | RG8 — I/O port / LCD segment |
| Chân 11 | RG9 — I/O port / LCD segment |
| Chân 12 | RG10 — I/O port / LCD segment |
| Chân 13 | RG11 — I/O port / LCD segment |
| Chân 14 | RG12 — I/O port / LCD segment |
| Chân 15 | RG13 — I/O port / LCD segment |
| Chân 16 | RG14 — I/O port / LCD segment |
| Chân 17 | VDD — Supply voltage 2.0V to 3.6V |
| Chân 18 | RC12 — I/O port |
| Chân 19 | RC13 — I/O port |
| Chân 20 | RC14 — I/O port |
| Chân 21 | RC15 — I/O port |
| Chân 22 | VSS — Ground |
| Chân 23 | RD0 — I/O port |
| Chân 24 | RD1 — I/O port |
| Chân 25 | RD2 — I/O port |
| Chân 26 | RD3 — I/O port |
| Chân 27 | RD4 — I/O port |
| Chân 28 | RD5 — I/O port |
| Chân 29 | RD6 — I/O port |
| Chân 30 | RD7 — I/O port |
| Chân 31 | RD8 — I/O port |
| Chân 32 | RD9 — I/O port |
| Chân 33 | RD10 — I/O port |
| Chân 34 | RD11 — I/O port |
| Chân 35 | VSS — Ground |
| Chân 36 | RD12 — I/O port |
| Chân 37 | RD13 — I/O port |
| Chân 38 | RD14 — I/O port |
| Chân 39 | RD15 — I/O port |
| Chân 40 | RA0 — I/O port / analog input |
| Chân 41 | RA1 — I/O port / analog input |
| Chân 42 | RA2 — I/O port / analog input |
| Chân 43 | RA3 — I/O port / analog input |
| Chân 44 | RA4 — I/O port / analog input |
| Chân 45 | RA5 — I/O port / analog input |
| Chân 46 | RA6 — I/O port / analog input |
| Chân 47 | RA7 — I/O port / analog input |
| Chân 48 | VDD — Supply voltage 2.0V to 3.6V |
| Chân 49 | OSC1 — Crystal oscillator input |
| Chân 50 | OSC2 — Crystal oscillator output |
| Chân 51 | RB0 — I/O port / programming clock (PGEC1) |
| Chân 52 | RB1 — I/O port / programming data (PGED1) |
| Chân 53 | RB2 — I/O port |
| Chân 54 | RB3 — I/O port |
| Chân 55 | RB4 — I/O port |
| Chân 56 | RB5 — I/O port |
| Chân 57 | RB6 — I/O port / programming clock (PGEC2) |
| Chân 58 | RB7 — I/O port / programming data (PGED2) |
| Chân 59 | VSS — Ground |
| Chân 60 | RB8 — I/O port |
| Chân 61 | RB9 — I/O port |
| Chân 62 | RB10 — I/O port |
| Chân 63 | RB11 — I/O port |
| Chân 64 | RB12 — I/O port |
| Chân 65 | RB13 — I/O port |
| Chân 66 | RB14 — I/O port |
| Chân 67 | RB15 — I/O port |
| Chân 68 | VDD — Supply voltage 2.0V to 3.6V |
| Chân 69 | RC0 — I/O port |
| Chân 70 | RC1 — I/O port |
| Chân 71 | RC2 — I/O port |
| Chân 72 | RC3 — I/O port |
| Chân 73 | RC4 — I/O port |
| Chân 74 | RC5 — I/O port |
| Chân 75 | RC6 — I/O port |
| Chân 76 | RC7 — I/O port |
| Chân 77 | RC8 — I/O port |
| Chân 78 | RC9 — I/O port |
| Chân 79 | RC10 — I/O port |
| Chân 80 | RC11 — I/O port |
Ứng dụng tiêu biểu
PIC24FJ512GL408-I/PT phù hợp cho 6 Áp dụngs: Industrial HMI Panel with Segmented LCD, Smart Meter / E-Meter Front Panel, Automotive Instrument Cluster, Medical Infusion Pump Controller, IoT Edge Sensor Node with LCD, Consumer Appliance User Interface.
Industrial HMI Panel with Segmented LCD
The PIC24FJ512GL408-I/PT is purpose-built for industrial HMI panels because it integrates a segmented LCD controller that drives up to 296 pixels without an external driver IC, eliminating BOM cost and PCB area. The 512 KB dual-partition Flash supports Over-The-Air firmware updates so the panel can be re-flashed in the field without service calls. Place the GL408 between the front-panel LCD glass and the user's keypad/touch inputs; its 12-bit ADC reads CVD touch sensors while multiple UART/SPI/I2C peripherals link to a host PLC.
Được đề xuất
Smart Meter / E-Meter Front Panel
Smart electricity meters benefit from the PIC24FJ512GL408-I/PT's combination of low power (microamp sleep), large 512 KB Flash for metering protocol stacks (DLMS/COSEM, IEC 62056), and integrated segmented LCD that displays consumption, time-of-use tariffs, and error codes. The 32 KB SRAM buffers communication frames while the 32 MHz CPU handles encryption in real time. Run the meter from a 3.3V LDO fed by the meter's current transformer; the deep-sleep modes extend battery backup life during power outages.
Được đề xuất
Automotive Instrument Cluster
The PIC24FJ512GL408-I/PT belongs to an AEC-Q100 qualified family, making it suitable for non-safety-critical instrument cluster nodes. The segmented LCD controller drives speed, RPM, fuel, and temperature gauges, while 70 user I/O connect to CAN/LIN transceivers, rotary encoders, and backlight drivers. Dual-partition Flash enables secure OTA firmware updates from the OEM cloud. Operate from the 12V battery through a 3.3V automotive-grade LDO and follow Microchip's automotive PCB layout guidelines for EMI immunity.
Được đề xuất
Medical Infusion Pump Controller
Medical infusion pumps rely on the PIC24FJ512GL408-I/PT's deterministic 16 MIPS performance for closed-loop motor control, its 512 KB Flash for safety firmware and audit logging, and 32 KB SRAM for alarm buffering. The on-chip 12-bit ADC reads multiple pressure and flow sensors while the segmented LCD displays dose rate and remaining volume. Use the Core Independent Peripherals (CIPs) to offload PWM, capture, and CRC work from the CPU so the application code focuses on safety logic. Follow IEC 62304 development practices.
Được đề xuất
IoT Edge Sensor Node with LCD
Battery-powered IoT edge nodes benefit from the PIC24FJ512GL408-I/PT's deep-sleep current in the microamp range plus its segmented LCD that displays sensor readings locally without needing an OLED. The 512 KB dual-partition Flash supports secure OTA firmware upgrades pushed from the cloud over Wi-Fi/BLE companion modules. USB 2.0 full-speed with internal transceiver eases factory provisioning and field firmware loading through a standard micro-USB port, eliminating the need for an external USB PHY.
Được đề xuất
Consumer Appliance User Interface
Washing machines, dishwashers, ovens, and other consumer appliances use the PIC24FJ512GL408-I/PT to drive a multi-segment LCD display showing cycle progress, temperature, and fault codes, while 70 user I/O scan the keypad and capacitive-touch buttons. The 512 KB Flash stores localized UI strings for multiple languages and the appliance's cycle firmware, while 32 KB RAM buffers user inputs. Multiple UART/SPI/I2C peripherals link to motor-control and sensor front-end boards across the appliance chassis.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ512GL408-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 | PIC24FJ512GL408-E/PT | PIC24FJ256GL408-I/PT | PIC24FJ128GL408-I/PT | PIC24FJ512GL406-I/PT | PIC24FJ256GL408-E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-pin TQFP (12x12) | 80-pin TQFP (12x12) - same | 80-pin TQFP (12x12) - same | 80-pin TQFP (12x12) - same | 80-pin TQFP (12x12) - same | 80-pin TQFP (12x12) - same |
| Program Flash | 512 KB | 512 KB | 256 KB (-50%) | 128 KB (-75%) | 512 KB | 256 KB (-50%) |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Supply Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| LCD Controller | Yes (up to 296 segments) | Yes (up to 296 segments) | Yes (up to 296 segments) | Yes (up to 296 segments) | Yes (reduced segment count) | Yes (up to 296 segments) |
| USB | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device | USB 2.0 FS Device |
Bảo phân biệt quan trọng
- Maximum Flash capacity in the GL408 family with industrial temperature range (vsPIC24FJ256GL408-I/PT)
- Extended temperature grade option available in same package (vsPIC24FJ512GL408-E/PT)
- Full 296-segment LCD controller (vsPIC24FJ512GL406-I/PT)
Ghi chú thiết kế
Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 3 mm of the pin pair, and add a bulk 10 uF tantalum or ceramic cap on the main 3.3V rail. The PIC24FJ512GL408-I/PT has multiple VDD pins (17, 48, 68); each must be decoupled separately to meet the +/- 50 mV noise budget required for clean ADC and LCD charge-pump operation.
Place the 32.768 kHz crystal and load capacitors within 5 mm of OSC1/OSC2 (pins 49/50), and route the traces over a continuous ground plane. Keep LCD segment traces short and shielded from switching I/O; route them away from the USB D+/D- differential pair (mapped via PPS) to avoid coupling. Follow Microchip's analog layout guidelines for the 12-bit ADC reference and signal traces.
Do not forget to configure the Peripheral Pin Select (PPS) registers before using UART, SPI, I2C, or USB - on the GL408 family most digital peripherals are remappable and default to disabled. Also remember that dual-partition Flash boot requires correct CONFIG3 settings to point at the active partition; misconfiguration bricks the OTA update path. Finally, observe the absolute maximum VDD of 3.6V - even brief transients above 3.6V can damage the part.
For USB 2.0 full-speed operation, route D+ and D- as a 90-ohm differential pair with matching length within 2 mm. Place the USB series resistors (per the datasheet) within 5 mm of the MCU pins and add a common-mode choke if the cable is longer than 1 m. Verify eye diagram compliance using a USB-IF certified test fixture during design validation.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. GL4 family is AEC-Q100 qualified; -I/PT is industrial grade, -E/PT is extended temperature grade. Lead-free and halogen-free per Microchip material declarations.