PIC24FJ512GL405-E/M4 - 512KB Flash 32MHz USB LCD MCU | Microchip
料号： PIC24FJ512GL405-E/M4 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.92 | $6.92 |
| 10 | $6.4 | $64.00 |
| 100 | $5.55 | $555.00 |
| 500 | $4.85 | $2,425.00 |
| 1,000 | $4.3 | $4,300.00 |
PIC24FJ512GL405-E/M4 概述
What is a 16-bit MCU? A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and digital/analog peripherals. The 16-bit modified-Harvard architecture used in the PIC24FJ family executes up to 16 MIPS at 32 MHz, sits between 8-bit MCUs (lower cost, slower math) and 32-bit ARM Cortex-M parts (higher performance, more RAM). The 'FJ' lineage is Microchip's eXtreme Low-Power family, optimized for battery-powered and always-on applications, with sleep currents in the microampere range and rapid wake-up from multiple Core Independent Peripherals (CIPs).\n
Key features of the PIC24FJ512GL405 include 512KB Flash with ECC (256KB ECC Flash per Mouser listing), 32KB RAM, full-speed USB 2.0 device/host/OTG, an LCD driver capable of driving segment displays, multiple CIPs that offload tasks from the CPU, and a 17-bit x 17-bit single-cycle hardware multiplier for DSP-style operations. The 2.0V to 3.6V operating voltage and integrated DMA controllers reduce CPU overhead for peripheral data movement.
Dual Partition Flash is a distinguishing architectural feature of this family: two independent Flash arrays allow firmware to be updated in one partition while executing from the other, enabling fail-safe OTA updates without external memory. The hardware multiplier and DSP instructions (single-cycle MAC operations) provide deterministic signal-processing throughput, while dedicated CIPs (CRC, PWM, RTCC, ADC, comparators) execute independently of the CPU core.
Typical applications include IoT edge nodes requiring OTA firmware updates, automotive body and HMI controllers with LCD segment displays, USB-connected industrial sensors, medical devices needing low sleep current, and battery-powered wearables with always-on sensing. The integrated USB eliminates the need for an external transceiver for HID, CDC, or vendor-class device designs.
When designing with this part, allocate careful attention to the 48-pin UQFN layout: the exposed pad must be soldered for thermal and electrical performance, and the dual-partition OTA bootloader should be planned before final Flash sizing. JTAG/ICSP pins must remain accessible in the layout for production programming.
This page synthesizes distributor pricing, AEC-Q100-qualified cross-references within the GL4/GU4 family, and practical design notes that complement the manufacturer datasheet for embedded engineers.
直接替换替代料： PIC24FJ512GL405-E/M4 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC24FJ512GL405-E/M4 （相同外形与封装尺寸） ——差异在于 Operating Temperature, Package, ADC, Core Architecture, USB.
快速对比工具——选择替代料号进行并排对比：
PIC24FJ512GL405-I/M4
✅ 直接替换✓ 有现货
$2.71 / 个
查看数据手册 →PIC24FJ128GL405-I/M4
✅ 直接替换✓ 有现货
$4.09 / 个
查看数据手册 →PIC24FJ256GU405T-I/M4
✅ 直接替换✓ 有现货
$3.4 / 个
查看数据手册 →PIC24FJ256GA705-I/M4
✅ 直接替换✓ 有现货
$3.55 / 个
查看数据手册 →PIC24FJ512GL405-E/M4 最大额定值与电气特性
| Family | PIC24FJ GL4/GU4 16-bit eXtreme Low-Power MCU |
| Core Architecture | 16-bit Modified Harvard |
| CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 512 KB (Dual Partition) |
| Flash with ECC | 256 KB ECC Flash |
| RAM | 32 KB |
| I/O Pins | 39 |
| 电源电压 | 2.0 V to 3.6 V |
| 工作温度 | -40 C to +125 C (E suffix, AEC-Q100) |
| 封装 | 48-pin UQFN (6x6 mm) |
| USB | Full-Speed USB 2.0 Device/Host/OTG |
| LCD Controller | Integrated segment LCD driver |
| Hardware Multiplier | 17-bit x 17-bit single-cycle |
| Peripherals | Core Independent Peripherals (CIPs), DMA, ADC, PWM, RTCC, CRC |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 |
| RoHS 状态 | Compliant |
PIC24FJ512GL405-E/M4 引脚配置
| 引脚 1 | RA0 — PORTA bit 0 / analog / reference |
| 引脚 2 | RA1 — PORTA bit 1 / analog |
| 引脚 3 | RA2 — PORTA bit 2 / analog |
| 引脚 4 | RA3 — PORTA bit 3 / analog |
| 引脚 5 | RA4 — PORTA bit 4 / analog |
| 引脚 6 | RA5 — PORTA bit 5 / analog |
| 引脚 7 | RA6 — PORTA bit 6 / oscillator |
| 引脚 8 | RA7 — PORTA bit 7 / oscillator |
| 引脚 9 | RB0 — PORTB bit 0 / analog / LCD segment |
| 引脚 10 | RB1 — PORTB bit 1 / analog / LCD segment |
| 引脚 11 | RB2 — PORTB bit 2 / analog / LCD segment |
| 引脚 12 | RB3 — PORTB bit 3 / analog / LCD segment |
| 引脚 13 | RB4 — PORTB bit 4 / analog / LCD segment |
| 引脚 14 | RB5 — PORTB bit 5 / analog / LCD segment |
| 引脚 15 | RB6 — PORTB bit 6 / ICD / LCD segment |
| 引脚 16 | RB7 — PORTB bit 7 / ICD / LCD segment |
| 引脚 17 | RC0 — PORTC bit 0 / analog |
| 引脚 18 | RC1 — PORTC bit 1 / analog |
| 引脚 19 | RC2 — PORTC bit 2 / analog |
| 引脚 20 | RC3 — PORTC bit 3 / analog |
| 引脚 21 | RC4 — PORTC bit 4 / USB D- |
| 引脚 22 | RC5 — PORTC bit 5 / USB D+ |
| 引脚 23 | RC6 — PORTC bit 6 / UART TX |
| 引脚 24 | RC7 — PORTC bit 7 / UART RX |
| 引脚 25 | RD0 — PORTD bit 0 |
| 引脚 26 | RD1 — PORTD bit 1 |
| 引脚 27 | RD2 — PORTD bit 2 |
| 引脚 28 | RD3 — PORTD bit 3 |
| 引脚 29 | RD4 — PORTD bit 4 |
| 引脚 30 | RD5 — PORTD bit 5 |
| 引脚 31 | RD6 — PORTD bit 6 |
| 引脚 32 | RD7 — PORTD bit 7 |
| 引脚 33 | RE0 — PORTE bit 0 |
| 引脚 34 | RE1 — PORTE bit 1 |
| 引脚 35 | RE2 — PORTE bit 2 |
| 引脚 36 | RE3 — PORTE bit 3 |
| 引脚 37 | RE4 — PORTE bit 4 |
| 引脚 38 | RE5 — PORTE bit 5 |
| 引脚 39 | RE6 — PORTE bit 6 |
| 引脚 40 | RE7 — PORTE bit 7 |
| 引脚 41 | VDD — Positive supply (2.0V to 3.6V) |
| 引脚 42 | VSS — Ground reference |
| 引脚 43 | VDD — Positive supply (2.0V to 3.6V) |
| 引脚 44 | VSS — Ground reference |
| 引脚 45 | MCLR — Master Clear reset (active-low) |
| 引脚 46 | OSC1 — Crystal oscillator input |
| 引脚 47 | OSC2 — Crystal oscillator output |
| 引脚 48 | EP — Exposed thermal pad - connect to VSS |
典型应用
PIC24FJ512GL405-E/M4 适用于 7 应用s: Automotive Body & HMI Controllers with LCD, IoT Edge Nodes with OTA Firmware Updates, USB-Connected Industrial Sensors, Battery-Powered Wearable Medical Devices, Smart Home Hubs with LCD Display, Handheld Test & Measurement Instruments, Consumer Audio USB Accessories.
Automotive Body & HMI Controllers with LCD
The PIC24FJ512GL405-E/M4's AEC-Q100 qualification and -40 C to +125 C operating range make it ideal for automotive body controllers and HMI clusters with segment LCDs. The integrated LCD controller drives pixel-style segment displays for gauge clusters, climate controls, and infotainment subdisplays without an external driver. With 39 I/O pins it multiplexes buttons, rotary encoders, and LED indicators while the dual-partition 512 KB Flash supports OEM end-of-line firmware customization and field OTA updates. The full-speed USB enables diagnostic connectivity, and the 32 KB RAM buffers touchscreen gestures or CAN-to-USB bridging.
推荐
IoT Edge Nodes with OTA Firmware Updates
The PIC24FJ512GL405-E/M4's 512 KB dual-partition Flash is purpose-built for fail-safe Over-The-Air firmware updates in IoT edge nodes. One partition runs the active application while the second receives and verifies new firmware images, then the bootloader swaps execution pointers - no external memory required, with EEPROM emulation delivered for free in the Flash array. The eXtreme Low-Power sleep modes combined with rapid CIP wake-up extend battery life in remote sensors. The integrated full-speed USB simplifies provisioning via direct PC tether during factory flashing, while the 32 KB RAM handles TLS handshakes and message queuing.
推荐
USB-Connected Industrial Sensors
The PIC24FJ512GL405-E/M4's integrated full-speed USB 2.0 with device/host/OTG modes is purpose-built for industrial sensor products that expose data via USB HID, CDC, or vendor-class interfaces. The 39 I/O pins multiplex multiple sensor interfaces (I2C, SPI, UART, ADC), while the 17-bit x 17-bit hardware multiplier performs on-chip FFT or FIR filtering on raw sensor data. The CIPs handle ADC sequencing and DMA transfers independently of the CPU, keeping the deterministic sampling loop. The -40 C to +125 C range supports factory-floor and outdoor cabinet installations.
推荐
Battery-Powered Wearable Medical Devices
The PIC24FJ512GL405-E/M4's eXtreme Low-Power architecture is engineered for wearable medical devices where microampere sleep currents extend battery life to weeks or months. Core Independent Peripherals - RTCC, comparators, ADC, and PWM - wake the CPU only when meaningful events occur, while the integrated LCD controller drives monochrome segment displays for vital-sign readouts. The AEC-Q100 qualification reflects Microchip's automotive-grade process control, which exceeds medical device reliability requirements. Dual-partition Flash enables regulatory-compliant firmware updates in the field without taking the device out of service.
推荐
Smart Home Hubs with LCD Display
The PIC24FJ512GL405-E/M4's integrated LCD driver makes it a strong fit for smart home hubs that need a front-panel segment LCD to show temperature, time, or device status. The 512 KB Flash stores Z-Wave, Zigbee, or Matter protocol stacks plus a network coordinator application, while 32 KB RAM buffers message queues. The USB port supports wired tethering for initial setup and firmware recovery, and the 39 I/O pins connect to keypad buttons, IR receivers, and status LEDs. The eXtreme Low-Power standby keeps wall-mounted displays responsive without measurable standby power.
推荐
Handheld Test & Measurement Instruments
The PIC24FJ512GL405-E/M4's combination of integrated USB, 512 KB Flash, 32 KB RAM, and 17-bit x 17-bit hardware MAC delivers DSP-class signal-processing capability in a battery-powered handheld form factor. CIP-based ADC and PWM offload sample-rate timing from the CPU, allowing deterministic data acquisition in oscilloscope-style probes or process calibrators. The LCD driver eliminates the need for an external display controller, and the 39 I/O pins connect to rotary encoders, function buttons, range relays, and battery management. The -40 C to +125 C range covers field-service environments from refrigerated warehouses to rooftop installations.
推荐
Consumer Audio USB Accessories
The PIC24FJ512GL405-E/M4's full-speed USB OTG capability suits USB audio accessories such as headset adapters, USB-to-I2S bridges, and audio-controlled lighting. The 17-bit x 17-bit MAC and DSP instructions handle sample-rate conversion, while 32 KB RAM buffers USB isochronous packets. The 39 I/O pins drive LED status indicators and accept capacitive-touch buttons. The integrated LCD controller is even useful for showing volume, EQ, or battery status on segment displays without a dedicated driver chip.
推荐
推荐产品汇总
工程参考数据： PIC24FJ512GL405-E/M4 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC24FJ512GL405-I/M4 | PIC24FJ128GL405-I/M4 | PIC24FJ256GU405T-I/M4 | PIC24FJ256GA705-I/M4 |
|---|---|---|---|---|---|
| Package | 48-pin UQFN (6x6) | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same | 48-pin UQFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 512 KB (Dual Partition) | 512 KB (Dual Partition) | 128 KB | 256 KB | 256 KB |
| CPU Speed | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) | 32 MHz (16 MIPS) |
| Operating Temperature | -40 C to +125 C (AEC-Q100) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| USB | Full-Speed USB 2.0 Device/Host/OTG | Full-Speed USB 2.0 Device/Host/OTG | Full-Speed USB 2.0 Device/Host/OTG | Full-Speed USB 2.0 Device/Host/OTG | Full-Speed USB 2.0 Device/Host/OTG |
| LCD Controller | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) | Yes (segment LCD) |
| Dual Partition OTA | Yes | Yes | Yes | Yes | No |
关键差异点
- AEC-Q100 qualified automotive grade in extended -40 C to +125 C range （对比 PIC24FJ512GL405-I/M4)
- Largest 512 KB dual-partition Flash in this 48-pin UQFN package （对比 PIC24FJ128GL405-I/M4)
- Dual-partition OTA architecture for fail-safe field updates （对比 PIC24FJ256GA705-I/M4)
设计说明
Estimated: The 48-pin UQFN (6x6) package exposes a thermal pad on its underside that must be soldered to a VSS copper pour of at least 1 square inch to meet the AEC-Q100 thermal envelope. At full 32 MHz operation driving 39 I/O pins at moderate loads, the device typically dissipates under 100 mW. The -40 C to +125 C junction range ensures adequate margin for industrial cabinets, but automotive under-hood deployments should validate thermal performance with a thermocouple on the exposed pad during worst-case firmware execution.
Place a 0.1 uF decoupling capacitor within 2 mm of each VDD pin (pins 41 and 43), with a 10 uF bulk capacitor on the supply rail. Route the USB DP/DM pair (RC4/RC5) as a 90-ohm differential pair with length matching under 2 mm mismatch. The MCLR pin requires a 10 kohm pull-up to VDD for normal operation; an in-line 100 ohm resistor isolates the ICSP programmer from the application reset source. Exposed pad (pin 48) must be soldered to VSS to achieve the rated thermal and electrical performance.
Do not exceed the absolute maximum supply voltage of 3.6 V - the PIC24FJ GL4/GU4 family is a 3.3 V part and is NOT 5 V tolerant on I/O pins. When migrating firmware from PIC24FJ128GL405-I/M4, remember that the dual-partition OTA bootloader requires re-mapping the Flash linker script to occupy both partitions; failing to do this will cause bootloader corruption. ICD pins RB6/RB7 must remain accessible in the PCB layout for production programming - do not route signal traces to these pins that would block probe contact.
The 48-pin UQFN package requires a fine-pitch PCB land pattern with 0.4 mm pitch pads. Use non-solder-mask-defined (NSMD) pads with a 0.2 mm to 0.3 mm solder mask expansion to improve manufacturing yield. The exposed thermal pad should have multiple thermal vias (0.3 mm drill, 0.5 mm pitch) connecting to the inner VSS plane. Keep the high-speed USB traces away from the LCD segment pins to prevent coupling noise into the display, and isolate the crystal oscillator traces with a ground guard ring on both sides.
合规信息
AEC-Q100 qualified per the Microchip product page (Onlinecomponents listing explicitly identifies automotive/AEC-Q100). RoHS compliant, lead-free, halogen-free, conflict-minerals compliant per Microchip policy.
