PIC24FJ64GL305-E/M4 - 16-bit 32MHz 64KB Flash MCU w/ LCD | Microchip
MPN： PIC24FJ64GL305-E/M4 ✓ 啟用中PIC24FJ64GL305-E/M4 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), working RAM, and a rich set of peripherals including timers, communication interfaces, and analog blocks. The PIC24F family sits in the wider PIC hierarchy: 16-bit PIC -> PIC24F sub-family -> low-power GL line -> power-managed embedded controller. It is widely used where deterministic real-time response, low energy consumption, and rich on-chip integration replace an external host processor.
The GL family extends low-power operation by adding a segmented LCD driver with core independent animation, supporting up to 256 segments (8 commons x 32 segments), autonomous alternating dual-display modes, blinking and blanking functions, and a charge pump for contrast management. Sleep current drops to a few hundred nanoamperes while RAM and LCD operation are retained, making it ideal for battery-powered human-machine interfaces.
Typical applications include battery-powered metering, electronic shelf labels, medical wearables, thermostats, home automation keypads, and any portable device that combines a segmented LCD with extended battery life. CIPs (Configurable Logic Cells, CRC, PWM, RTCC) offload routine tasks from the CPU, reducing MIPS demand and total energy.
When designing with the PIC24FJ64GL305-E/M4, use MPLAB X IDE with the XC16 compiler and the MPLAB Code Configurator for peripheral setup. Place a 100 nF decoupling capacitor as close as possible to each VDD pin and a bulk 4.7-10 uF capacitor near the package to stabilize the internal voltage regulator.
直接替換替代品，適用於 PIC24FJ64GL305-E/M4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24FJ64GL305-E/M4 （相同外形與佔位） — 差異在於 Package, Core Architecture, Operating Temperature, ADC, SRAM.
PIC24FJ128GL306T-I/MR
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ128GL306-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FJ64GA705T-I/M4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ128GL405-I/M4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ256GU405T-I/M4
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ64GL305-E/M4 最大額定值與電氣特性
| Core Architecture | PIC24F (16-bit) |
| CPU Speed | 32 MHz / 16 MIPS |
| Program Memory (Flash) | 64 KB (64K x 8) |
| RAM | 8 KB |
| 工作溫度 | -40C to +125C (E-Temp) |
| 封裝 | 48-UQFN (6x6 mm) |
| 安裝類型 | Surface Mount |
| LCD Segments | Up to 256 (8 COM x 32 SEG) |
| LCD Charge Pump | Integrated |
| Memory ECC | Yes (Flash) |
| eXtreme Low Power (XLP) | Yes |
| Core Independent Peripherals (CIPs) | Yes (CLC, MCCP, RTCC, CRC, PWM) |
| Fail-Safe Clock Monitor | Yes |
| RoHS 狀態 | Compliant |
| AEC-Q100 | Not qualified (industrial/consumer) |
PIC24FJ64GL305-E/M4 48-uqfn (6x6 mm) 腳位配置指南
PIC24FJ64GL305-E/M4（48-uqfn (6x6 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC24FJ64GL305-E/M4.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC24FJ64GL305-E/M4 適用於 6 應用s: Battery-Powered Smart Meter, Electronic Shelf Label (ESL), Medical Wearable / Health Monitor, Thermostat and Home Automation Keypad, Industrial Control Panel HMI, Automotive Aftermarket Display.
Battery-Powered Smart Meter
The PIC24FJ64GL305-E/M4 fits utility metering because its XLP sleep current of a few hundred nanoamperes preserves battery life over multi-year deployments, while the integrated segmented LCD driver supports up to 256 segments for displaying consumption values, units, and status icons. The 16 MIPS core can run a Modbus or wireless M-Bus protocol stack in addition to metrology math, and the on-chip ECC Flash safeguards calibration data against bit flips caused by long-term retention. Compared with discrete RTC plus LCD chip solutions, this single-chip integration reduces PCB area by roughly 40% and BOM cost by an estimated 25-30%.
推薦
Electronic Shelf Label (ESL)
ESL nodes demand multi-year coin-cell operation, sub-second display refresh, and low-cost RF or NFC connectivity. The PIC24FJ64GL305-E/M4's LCD charge pump maintains contrast down to ~2 V battery voltage, while deep sleep with LCD retention consumes only nanoamperes between price updates. The 32 MHz CPU can service the wireless protocol between updates without waking the LCD, and the segmented LCD controller's autonomous blinking and blanking modes reduce firmware complexity. Its 48-pin UQFN package (6x6 mm) keeps the design footprint compatible with thin ESL enclosures.
推薦
Medical Wearable / Health Monitor
For continuous glucose monitors, pulse oximeters, and smart insulin pens, the PIC24FJ64GL305-E/M4 provides deterministic 16 MIPS throughput for sensor fusion, hardware CIPs for low-power PWM-driven LED drivers, and a segmented LCD that displays real-time readings without needing a high-power OLED. Its E-Temp range (-40C to +125C) supports sterilization and harsh skin-contact environments. RAM retention through XLP sleep preserves patient data across battery swaps, while ECC Flash prevents silent corruption of medical logs - a critical requirement for FDA traceability.
推薦
Thermostat and Home Automation Keypad
Smart thermostats and wall keypads combine temperature sensing, segmented LCD readouts, capacitive touch, and sometimes wireless mesh connectivity. The PIC24FJ64GL305-E/M4 integrates the LCD, RTCC, and CLC-based capacitive-touch glue logic, eliminating an external display driver and reducing the bill of materials. Its CIP peripherals handle PWM-driven backlights and triac-firing zero-cross detection without CPU intervention, freeing cycles for Zigbee or Thread host interface. Wide temperature tolerance accommodates installation in attics, basements, and outdoor enclosures.
推薦
Industrial Control Panel HMI
Industrial HMIs require deterministic response to operator input and reliable segmented LCD visibility across wide temperature and lighting conditions. The PIC24FJ64GL305-E/M4's CLCs and MCCP peripherals can drive multiple LEDs, buzzers, and triac outputs concurrently, while the integrated LCD controller powers a 256-segment display. Fail-Safe Clock Monitor detects primary oscillator failure and switches to the internal low-power RC, ensuring continued operation in factory environments with electromagnetic noise. AEC-style robustness (E-Temp) and ECC Flash support long-term industrial reliability.
推薦
Automotive Aftermarket Display
The PIC24FJ64GL305-E/M4 suits aftermarket automotive accessories such as tire-pressure monitoring indicators, gauge clusters, and diagnostic tools. While not AEC-Q100 qualified, the E-Temp range (-40C to +125C) handles cabin and engine-bay conditions, and the segmented LCD remains readable in direct sunlight when paired with the integrated charge pump. CIP-based PWM drives analog gauges and warning LEDs deterministically, freeing the 16 MIPS core for CAN or LIN stack processing. Drop-in compatibility with PIC24FJ128GL306 variants enables a tiered product line.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ64GL305-E/M4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24FJ128GL306T-I/MR | PIC24FJ128GL306-I/PT | PIC24FJ64GA705T-I/M4 | PIC24FJ128GL405-I/M4 | PIC24FJ256GU405T-I/M4 |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-48 (6x6 mm) | UQFN-48 family (similar) | TQFP-64 (different footprint) | UQFN-48 (6x6) - same | UQFN-48 (6x6) - same | UQFN-48 (6x6) - same |
| Flash Memory | 64 KB ECC | 128 KB ECC | 128 KB ECC | 64 KB | 128 KB | 256 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 96 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 |
| LCD Controller | Yes (up to 256 segments) | Yes | Yes | No | Yes | No (USB instead) |
| XLP Sleep Current | ~few hundred nA (typical) | Same XLP family | Same XLP family | Similar XLP | Same XLP family | Higher (USB-capable) |
| Operating Temperature | -40C to +125C (E-Temp) | -40C to +85C (I-Temp) | -40C to +85C (I-Temp) | -40C to +85C (I-Temp) | -40C to +85C (I-Temp) | -40C to +85C (I-Temp) |
主要差異化特點
- Integrated segmented LCD controller with charge pump (對比PIC24FJ64GA705T-I/M4)
- XLP sleep current in nanoampere range with LCD retention (對比PIC24FJ256GU405T-I/M4)
- ECC Flash for safety-critical retention (對比PIC24FJ64GL302-E/SS)
- CIP-based autonomous peripherals (對比PIC24FJ32GP205T-I/PT)
設計說明
Estimated: at VDD=3.3 V and CPU idle with LCD active, the PIC24FJ64GL305-E/M4 draws approximately 5-10 uA/MIPS active current and roughly 200-500 nA in XLP sleep with RTC and LCD retention. Use MCP1700 (250 mA LDO, 1.6 uA Iq) for primary regulation from a coin cell or 2xAA source. Decouple VDD with a 100 nF ceramic as close to each pin pair as possible, plus a bulk 4.7 uF near the package to stabilize the internal core regulator.
The 6x6 mm UQFN-48 with exposed thermal pad yields an estimated theta_JA of approximately 30-35 C/W on a 1-oz 4-layer JEDEC test board. At full 32 MHz CPU activity drawing ~10 mA core current from 3.3 V (33 mW), junction rise is only ~1 C above ambient, so no heatsink is required. Ensure the exposed pad is soldered to a continuous ground plane of at least 25 mm^2 to maintain rated thermal performance.
Route the LCD segment pins to the display via short, parallel traces guarded by a ground pour; long traces couple noise into the charge-pump output and degrade contrast. Place the external 1 uF charge-pump capacitor as close as possible to the VLCAP pins. Reserve a 4-wire SPI footprint for an optional external Flash memory to extend data logging, using PPS (Peripheral Pin Select) for flexible MCU mapping.
Avoid configuring PPS outputs that conflict with the ICD/ICSP programming pins (PGECx/PGEDx). When migrating from the -E to -I temperature grade, re-validate LCD contrast at low temperatures because the charge-pump response slows. Do not exceed the absolute maximum VDD of 3.6 V - this is a 3.3 V part, not a 5 V tolerant MCU. Always include a 10 kOhm pull-up on MCLR to prevent spurious resets during brown-out events.
合規資訊
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 automotive parts for OEM automotive use.
