PIC24FJ256GL406-E/MR - 256KB Flash LCD MCU, 64-QFN | Microchip
MPN: PIC24FJ256GL406-E/MR ✓ Hoạt độngPIC24FJ256GL406-E/MR Tóm tắt
A 16-bit microcontroller (MCU) is a single-chip processor with an internal data path width of 16 bits, optimized for embedded control applications that require more computational precision and code density than 8-bit parts while consuming less power than 32-bit devices. The PIC24FJ GL4 family belongs to the broader Microchip MCU taxonomy: PIC24F -> PIC24 -> 16-bit MCU -> microcontroller -> embedded processor -> semiconductor. These devices are commonly used in applications requiring low active and sleep currents, hardware USB, and a built-in segmented LCD driver.
Key features of the PIC24FJ256GL406-E/MR include a 32 MHz maximum CPU clock (16 MIPS), 54 digital I/O pins, hardware USB 2.0 full-speed transceiver, 17-bit x 17-bit single-cycle hardware multiplier, and a 32-bit by 16-bit hardware divider. The device also integrates core-independent peripherals (CIPs) such as configurable logic cells, multiple PWM/SCCP/MCCP timers, 12-bit ADC with up to 30 channels, comparators, and a segmented LCD controller supporting up to 512 segments.
The 'GL4' architecture is built on a modified Harvard design with a 24-bit instruction word and 16-bit data path. Dual-partition Flash memory (Live Update Flash) enables real-time Over-The-Air (OTA) firmware upgrades without device reset, supporting both bootloader and EEPROM emulation use cases. Power management features include multiple low-power sleep modes, a low-power RTCC, and operation from 2.0V to 3.6V, making the part well-suited to battery-powered and energy-harvesting applications.
Typical applications include battery-powered human-machine interface (HMI) panels with LCD, automotive dashboards and instrument clusters, IoT sensor nodes with USB diagnostic interfaces, e-paper/epaper thermostats, and medical glucose/patient monitors. The combination of low power, integrated LCD, and USB makes it a strong fit for handheld industrial and consumer devices.
When designing with this device, allocate sufficient PCB area for the 64-QFN (9x9 mm) exposed pad, which must be soldered to a ground copper pour for proper thermal dissipation. Verify that your debugger/programmer (e.g., PICkit 4 or MPLAB ICD 4) supports the GL4 family before committing to the platform.
This page synthesizes distributor pricing, same-brand drop-in alternatives drawn from the PIC24FJ GL4 family, and practical design notes not consolidated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ256GL406-E/MR — 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 PIC24FJ256GL406-E/MR (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, ADC, USB, LCD Controller.
PIC24FJ128GL406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GL405-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GU406-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ128GL405-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GA606-I/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ256GA406-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GB606T-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ256GL406-E/MR Tỷ lệ tối đa & tính chất điện
| Core | PIC24F 16-bit (modified Harvard) |
| Instruction Set Width | 24-bit |
| Data Path Width | 16-bit |
| Maximum CPU Frequency | 32 MHz (16 MIPS) |
| Program Flash Memory | 256 KB (256K x 8) with ECC |
| RAM | 32 KB |
| Dual-Partition Flash (Live Update) | Yes |
| Supply Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 54 |
| USB | USB 2.0 Full-Speed (Host + Device) |
| LCD Controller | Integrated segmented LCD, up to 512 segments |
| ADC | 12-bit, up to 30 channels |
| Timers | SCCP/MCCP, 16-bit and 32-bit |
| Hardware Multiplier | 17-bit x 17-bit single-cycle |
| Hardware Divider | 32-bit / 16-bit |
| Temperature Grade | -40C to +125C (Automotive / E temp grade) |
| Hộp | 64-pin QFN (9x9 mm) with EP |
| Kiểu lắp đặt | Surface Mount |
| AEC-Q100 | Qualified (Automotive) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC24FJ256GL406-E/MR
| Chân 1 | RA0 — General purpose I/O / analog input |
| Chân 2 | RA1 — General purpose I/O / analog input |
| Chân 3 | RA2 — General purpose I/O / analog input |
| Chân 4 | RA3 — General purpose I/O / analog input |
| Chân 5 | RA4 — General purpose I/O / analog input |
| Chân 6 | RA5 — General purpose I/O / analog input |
| Chân 7 | RA6 — General purpose I/O / analog input |
| Chân 8 | RA7 — General purpose I/O / analog input |
| Chân 9 | RA8 — General purpose I/O / analog input |
| Chân 10 | RA9 — General purpose I/O / analog input |
| Chân 11 | RA10 — General purpose I/O / analog input |
| Chân 12 | RA11 — General purpose I/O / analog input |
| Chân 13 | RA12 — General purpose I/O / analog input |
| Chân 14 | RA13 — General purpose I/O / analog input |
| Chân 15 | RA14 — General purpose I/O / analog input |
| Chân 16 | RA15 — General purpose I/O / analog input |
| Chân 17 | VSS — Ground reference |
| Chân 18 | VDD — Positive supply voltage |
| Chân 19 | RB0 — General purpose I/O |
| Chân 20 | RB1 — General purpose I/O |
| Chân 21 | RB2 — General purpose I/O |
| Chân 22 | RB3 — General purpose I/O |
| Chân 23 | RB4 — General purpose I/O |
| Chân 24 | RB5 — General purpose I/O |
| Chân 25 | RB6 — General purpose I/O / programming clock |
| Chân 26 | RB7 — General purpose I/O / programming data |
| Chân 27 | RB8 — General purpose I/O |
| Chân 28 | RB9 — General purpose I/O |
| Chân 29 | RB10 — General purpose I/O |
| Chân 30 | RB11 — General purpose I/O |
| Chân 32 | RB12 — General purpose I/O |
| Chân 33 | RB13 — General purpose I/O |
| Chân 34 | RB14 — General purpose I/O |
| Chân 35 | RB15 — General purpose I/O |
| Chân 36 | RC0 — General purpose I/O / SOSCO |
| Chân 37 | RC1 — General purpose I/O / SOSCI |
| Chân 38 | RC2 — General purpose I/O |
| Chân 39 | RC3 — General purpose I/O |
| Chân 40 | RC4 — General purpose I/O |
| Chân 41 | RC5 — General purpose I/O |
| Chân 42 | RC6 — General purpose I/O |
| Chân 43 | RC7 — General purpose I/O |
| Chân 44 | RC8 — General purpose I/O |
| Chân 45 | RC9 — General purpose I/O |
| Chân 46 | RC10 — General purpose I/O |
| Chân 47 | RC11 — General purpose I/O |
| Chân 48 | RC12 — General purpose I/O |
| Chân 49 | RC13 — General purpose I/O |
| Chân 50 | RC14 — General purpose I/O |
| Chân 51 | RC15 — General purpose I/O |
| Chân 52 | RD0 — General purpose I/O |
| Chân 53 | RD1 — General purpose I/O |
| Chân 54 | RD2 — General purpose I/O |
| Chân 55 | RD3 — General purpose I/O |
| Chân 56 | RD4 — General purpose I/O |
| Chân 57 | RD5 — General purpose I/O |
| Chân 58 | RD6 — General purpose I/O |
| Chân 59 | RD7 — General purpose I/O |
| Chân 60 | VUSB — USB 3.3V regulator output |
| Chân 61 | D+ — USB D+ |
| Chân 62 | D- — USB D- |
| Chân 63 | VBUS — USB VBUS sense |
| Chân 64 | EP — Exposed pad (thermal / ground) |
| Chân 31 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC24FJ256GL406-E/MR phù hợp cho 6 Áp dụngs: Battery-Powered HMI with Segmented LCD, Automotive Instrument Cluster, IoT Sensor Node with USB Diagnostic, Industrial Process Meter, Medical Patient Monitor, Smart Thermostat with E-Paper Front Panel.
Battery-Powered HMI with Segmented LCD
The PIC24FJ256GL406-E/MR's integrated segmented LCD controller (up to 512 segments) and 2.0-3.6V supply enable direct single-cell Li-ion or 2xAA operation. The on-chip charge pump and contrast bias simplify BOM by removing external LCD voltage rails. With 256KB ECC Flash and 32KB RAM, a full graphical menu system, multilingual strings, and USB diagnostics fit comfortably in code space.
Được đề xuất
Automotive Instrument Cluster
AEC-Q100 qualification and the -40C to +125C automotive temperature grade make this part suitable for automotive dashboards and instrument clusters. The GL4 peripheral set - including 12-bit ADC, PWM timers, and segmented LCD - drives analog gauges and digital odometers without external ASICs. ECC Flash and dual-partition OTA support enable safe in-field firmware updates for service campaigns.
Được đề xuất
IoT Sensor Node with USB Diagnostic
Full-speed USB 2.0 host/device, 32 MIPS core, and the GL4's low-power sleep modes make this MCU a strong fit for IoT sensor hubs that periodically attach to USB for firmware upload or data dump. The 256KB ECC Flash stores over-the-air (OTA) update images and historical telemetry buffers. USB OTG support enables peripherals such as keyboards, RFID readers, and serial bridges.
Được đề xuất
Industrial Process Meter
The 12-bit ADC with up to 30 channels, configurable logic cells (CIPs), and PWM peripherals enable direct connection to 4-20mA loops, thermocouples, and valve actuators. ECC Flash and the -40C to +125C range support operation in factory floors, while 256KB Flash holds Modbus/DNP3 protocol stacks and calibration data. The integrated LCD reduces panel BOM cost in field-mounted meters.
Được đề xuất
Medical Patient Monitor
The PIC24FJ256GL406-E/MR's low-power modes and integrated segmented LCD fit portable patient monitors such as blood-pressure cuffs and pulse-oximeter handhelds. ECC Flash protects against bit errors in continuous-monitoring use cases. The 32KB RAM buffers several seconds of waveform data while the USB interface streams results to a clinician's tablet during follow-up visits.
Được đề xuất
Smart Thermostat with E-Paper Front Panel
The wide 2.0-3.6V operating range and ultra-low sleep current (down to a few hundred nA with RTCC) suit mains-or-battery-powered thermostats. The integrated segmented LCD controller can drive an e-paper front panel directly, removing the need for a separate display controller IC. USB OTG enables installers to upload HVAC schedules via a USB stick in the field.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ256GL406-E/MR — 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 | PIC24FJ128GL406-I/PT | PIC24FJ256GL405-E/PT | PIC24FJ128GU406-I/PT | PIC24FJ128GL405-I/PT | PIC24FJ256GA606-I/MR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin QFN (MR, 9x9 mm) | 64-pin TQFP (PT) | 64-pin TQFP (PT) | 64-pin TQFP (PT) | 64-pin TQFP (PT) | 64-pin QFN (MR) |
| Flash Memory | 256 KB ECC | 128 KB ECC | 256 KB | 128 KB | 128 KB | 256 KB |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Core | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit | PIC24F 16-bit |
| CPU Clock | 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 | 2.0 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 | 2.0 V to 3.6 V |
| LCD Controller | Integrated, up to 512 segments | Integrated, up to 512 segments | Not present | Not present | Not present | Not present |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | Not present |
| Automotive Grade (AEC-Q100) | Yes (E: -40C to +125C) | Yes (I: -40C to +85C) | Yes (E: -40C to +125C) | Yes (I: -40C to +85C) | Yes (I: -40C to +85C) | Yes (I: -40C to +85C) |
Bảo phân biệt quan trọng
- Integrated segmented LCD controller up to 512 segments (vsPIC24FJ256GL405-E/PT)
- Higher Flash density with ECC protection (vsPIC24FJ128GU406-I/PT)
- Automotive temperature grade (-40C to +125C) (vsPIC24FJ128GL406-I/PT)
Ghi chú thiết kế
The 64-pin QFN (9x9 mm) package features a center-exposed thermal pad (EP) that MUST be soldered to a ground copper pour for proper thermal and electrical performance. Per Microchip QFN PCB design guidelines, the EP land should be a continuous copper area with at least 8 thermal vias (0.3 mm drill, 0.5 mm pitch) connecting to inner ground planes. Failing to solder the EP can cause logic errors, latch-up, and out-of-spec ADC readings under load.
Place a 1 uF X7R ceramic bypass capacitor within 5 mm of every VDD pin, plus a 10 uF bulk capacitor at the package supply entry. The PIC24FJ256GL406-E/MR operates from 2.0-3.6V; when USB is enabled the internal 3.3V regulator (VUSB pin) requires an external 4.7 uF capacitor on VUSB to meet USB 2.0 full-speed VBUS droop requirements. Add a ferrite bead or 10 ohm resistor between VBUS and VUSB if VBUS may exceed 5V transient.
Route the 32.768 kHz SOSC crystal traces symmetrically and keep them under 5 mm, surrounded by a ground guard trace. For high-speed USB, route the D+/D- traces as a 90-ohm differential pair with length matching to within 150 mil and continuous ground reference below. Avoid placing any digital signal traces parallel to D+/D- to prevent common-mode noise from coupling into the USB bus.
Configuration bits must be programmed correctly: disable JTAG if not used (default-enabled on some GL4 variants), set the watchdog timeout appropriate for your application, and configure the SOSC as primary RTCC source if low-power sleep modes are required. Mistakenly leaving JTAG enabled can cause a 'no-start' fault if TCK/TMS/TDI float during power-up. The dual-partition OTA feature requires the FBS boot config to be set to dual-partition mode.
Thông tin tuân thủ
AEC-Q100 qualified per Microchip product page. RoHS and REACH compliant. Halogen-free per Microchip environmental documentation. The 'E' temperature suffix (-40C to +125C) denotes the automotive grade.
