PIC24FJ256GL406T-I/MR - 16-bit MCU, 256KB Flash, USB, LCD | Microchip
MPN: PIC24FJ256GL406T-I/MR ✓ פעילPIC24FJ256GL406T-I/MR סקירה
A 16-bit PIC microcontroller is a member of the higher-performance 16-bit MCU category, sitting between 8-bit AVR/PIC MCUs and 32-bit ARM Cortex-M devices. Within the system hierarchy, PIC24F parts belong to the Microcontroller > Embedded Processor > Integrated Circuit taxonomy. The 16-bit modified Harvard architecture balances deterministic interrupt response, rich peripherals, and low power - making PIC24F MCUs common in consumer appliances, industrial sensors, USB human-interface devices, and battery-powered metering where 8-bit cores are too slow but 32-bit MCUs are over-spec.
Key features include hardware crypto engine, segmented LCD controller for up to 512 pixels, 12-bit ADC with 16 channels, multiple UART/SPI/I2C interfaces, and eXtreme Low Power (XLP) sleep modes drawing under 1 uA. The dual-partition Flash and EEPROM emulation reduce BOM cost by eliminating external memory chips. The 64-QFN package offers compact layout for space-constrained HMI modules.
Typical applications include secure IoT nodes with OTA firmware, USB HID peripherals, metering displays with LCD, automotive AEC-Q100 dashboard sub-modules, and low-power sensor hubs. The wide peripheral integration reduces external components, supporting compact PCB designs with fewer layers.
Design tip: the dual-partition Flash requires careful linker script configuration to partition A/B blocks correctly. Refer to Microchip application note TB3134 for OTA reference implementation patterns. AECs and standard PIC24F IDE toolchains (MPLAB X, XC16 compiler) support this device fully.
חלופות תחליף ישיר עבור PIC24FJ256GL406T-I/MR — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC24FJ256GL406T-I/MR (אותו גורם צורה וטביעת רגל) — שונים ב Package, ADC, USB, Operating Temperature, I/O Pins.
PIC24FJ256GL406-I/MR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GL406T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GL406-E/MR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ128GL406-I/MR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GU406-I/MR
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GA406-I/MR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ256GL406T-I/MR דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | PIC 16-bit modified Harvard |
| CPU Speed (MIPS) | 16 MIPS |
| Clock Frequency | 32 MHz max |
| Program Flash | 256 KB (256K x 8) |
| SRAM | 32 KB |
| Flash Type | Dual-partition Flash with ECC |
| EEPROM Emulation | Yes (in Flash) |
| USB | USB 2.0 Full-Speed |
| LCD Controller | Segmented LCD, up to 512 pixels |
| ADC | 12-bit, 16 channels |
| מארז | 64-pin QFN (9x9 mm) |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | -40C to +85C (Industrial) |
| סטטוס RoHS | Compliant |
| AEC-Q100 | Qualified (Automotive grade variant) |
תצורת פינים של PIC24FJ256GL406T-I/MR
| פין 1 | RB0/AN0 — Port B bit 0 / ADC analog input 0 |
| פין 2 | RB1/AN1 — Port B bit 1 / ADC analog input 1 |
| פין 3 | RB2/AN2 — Port B bit 2 / ADC analog input 2 |
| פין 4 | RB3/AN3 — Port B bit 3 / ADC analog input 3 |
| פין 5 | VSS — Ground |
| פין 6 | VDD — Positive supply |
| פין 7 | RB4/AN4 — Port B bit 4 / ADC analog input 4 |
| פין 8 | RB5/AN5 — Port B bit 5 / ADC analog input 5 |
| פין 9 | RB6/AN6 — Port B bit 6 / ADC analog input 6 |
| פין 10 | RB7/AN7 — Port B bit 7 / ADC analog input 7 |
| פין 11 | RC0 — Port C bit 0 |
| פין 12 | RC1 — Port C bit 1 |
| פין 13 | RC2 — Port C bit 2 |
| פין 14 | RC3 — Port C bit 3 |
| פין 15 | RC4 — Port C bit 4 |
| פין 16 | RC5 — Port C bit 5 |
| פין 17 | RC6 — Port C bit 6 |
| פין 18 | RC7 — Port C bit 7 |
| פין 19 | VSS — Ground |
| פין 20 | VDD — Positive supply |
| פין 21 | RD0 — Port D bit 0 |
| פין 22 | RD1 — Port D bit 1 |
| פין 23 | RD2 — Port D bit 2 |
| פין 24 | RD3 — Port D bit 3 |
| פין 25 | RD4 — Port D bit 4 |
| פין 26 | RD5 — Port D bit 5 |
| פין 27 | RD6 — Port D bit 6 |
| פין 28 | RD7 — Port D bit 7 |
| פין 29 | RE0 — Port E bit 0 |
| פין 30 | RE1 — Port E bit 1 |
| פין 31 | RE2 — Port E bit 2 |
| פין 32 | RE3 — Port E bit 3 |
| פין 33 | RE4 — Port E bit 4 |
| פין 34 | RE5 — Port E bit 5 |
| פין 35 | RE6 — Port E bit 6 |
| פין 36 | RE7 — Port E bit 7 |
| פין 37 | RF0 — Port F bit 0 |
| פין 38 | RF1 — Port F bit 1 |
| פין 39 | RF2 — Port F bit 2 |
| פין 40 | RF3 — Port F bit 3 |
| פין 41 | RF4 — Port F bit 4 |
| פין 42 | RF5 — Port F bit 5 |
| פין 43 | RF6 — Port F bit 6 |
| פין 44 | RF7 — Port F bit 7 |
| פין 45 | RG0 — Port G bit 0 |
| פין 46 | RG1 — Port G bit 1 |
| פין 47 | RG2 — Port G bit 2 |
| פין 48 | RG3 — Port G bit 3 |
| פין 49 | RG6 — Port G bit 6 |
| פין 50 | RG7 — Port G bit 7 |
| פין 51 | RG8 — Port G bit 8 |
| פין 52 | RG9 — Port G bit 9 |
| פין 53 | MCLR — Master clear reset input |
| פין 54 | OSC1 — Oscillator input |
| פין 55 | OSC2 — Oscillator output |
| פין 56 | SOSCO — Secondary oscillator output |
| פין 57 | SOSCI — Secondary oscillator input |
| פין 58 | D+ — USB D+ data line |
| פין 59 | D- — USB D- data line |
| פין 60 | VBUS — USB VBUS detect |
| פין 61 | VUSB — USB internal regulator output |
| פין 62 | AVDD — Analog supply |
| פין 63 | AVSS — Analog ground |
| פין 64 | EP — Exposed thermal pad (connect to ground) |
יישומים טיפוסיים
PIC24FJ256GL406T-I/MR מתאים עבור 6 יישוםs: Secure IoT Sensor Nodes with OTA, USB HID Peripherals, Metering Displays with LCD, Automotive Dashboard Sub-modules, Industrial Sensor Hubs, Low-Power Wearable Devices.
Secure IoT Sensor Nodes with OTA
The PIC24FJ256GL406T-I/MR's 256 KB dual-partition Flash with ECC is purpose-built for IoT endpoints that need reliable over-the-air firmware upgrades. The 32 KB SRAM accommodates TLS/DTLS stacks, and the XLP sleep modes drop current below 1 uA for battery longevity over multi-year deployments. Engineers typically pair this MCU with an ATECC608B secure element and an RN4871 BLE module for complete wireless nodes.
מומלץ
USB HID Peripherals
With on-chip USB 2.0 full-speed, internal 3.3V regulator, and 16 MIPS of CPU throughput, the PIC24FJ256GL406T-I/MR is ideal for USB keyboards, mice, game controllers, and custom HID-class devices. The internal pull-up resistors eliminate external components, and 32 KB SRAM comfortably handles USB descriptors and protocol stacks. Reference Microchip AN1227 for HID firmware templates and USB stack integration.
מומלץ
Metering Displays with LCD
The integrated segmented LCD controller drives up to 512 pixels, supporting multi-digit utility meters, weigh scales, and home appliance HMIs. The 256 KB Flash stores multilingual display fonts and metering firmware, while the 16-channel 12-bit ADC reads sensor inputs at 200 ksps. A typical reference design uses a 4x40 segment LCD and an SPI-connected ePaper backup display for redundancy.
מומלץ
Automotive Dashboard Sub-modules
AEC-Q100 qualified variants of the GL406 family suit automotive interior sub-modules such as climate controls, mirror modules, and steering-wheel switch readers. The wide operating temperature range and robust ESD performance meet OEM requirements. The 32 KB SRAM buffers CAN/LIN communication, and the segmented LCD driver supports instrument-cluster style displays. Reference Microchip AN2821 for automotive touch-button design.
מומלץ
Industrial Sensor Hubs
The PIC24FJ256GL406T-I/MR's CIPs (Core Independent Peripherals) like CLC, PWM, and event system enable sensor-fusion hubs that wake on threshold events without CPU intervention. Industrial sensors, Modbus gateways, and predictive-maintenance nodes benefit from sub-microamp sleep currents and deterministic 16 MIPS performance. Reference TB3134 for OTA reference implementation in industrial settings.
מומלץ
Low-Power Wearable Devices
Battery-powered wearables such as fitness bands, hearing-aid remote controls, and medical monitors benefit from the GL406's XLP modes and integrated segmented LCD. The 256 KB Flash accommodates BLE stack libraries and application code simultaneously, and the 64-QFN's 9x9 mm footprint suits compact enclosures. Total quiescent current under 1 uA extends coin-cell operation to multi-year life.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24FJ256GL406T-I/MR — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC24FJ256GL406-I/MR | PIC24FJ256GL406T-I/PT | PIC24FJ128GL406-I/MR | PIC24FJ256GA406-I/MR |
|---|---|---|---|---|---|
| Package | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) | 64-TQFP (10x10 mm) | 64-QFN (9x9 mm) | 64-QFN (9x9 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash | 256 KB | 256 KB | 256 KB | 128 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB |
| Dual-Partition Flash | Yes | Yes | Yes | Yes | No |
| USB | Full-Speed | Full-Speed | Full-Speed | Full-Speed | Full-Speed |
| LCD Controller | Yes (segmented) | Yes (segmented) | Yes (segmented) | Yes (segmented) | Yes (segmented) |
| Automotive Qualified | Yes (AEC-Q100) | Industrial | Yes (AEC-Q100) | Industrial | Industrial |
מבדילים עיקריים
- Dual-partition Flash with ECC (לעומתPIC24FJ256GA406-I/MR)
- Higher RAM capacity (לעומתPIC24FJ256GA406-I/MR)
- Automotive grade option in same package (לעומתPIC24FJ128GL406-I/MR)
הערות תכנון
Place 100 nF and 10 uF decoupling capacitors as close as possible to every VDD/VSS pin pair of the PIC24FJ256GL406T-I/MR. The device includes an internal USB voltage regulator (VUSB pin) which also requires its own 1 uF decoupling cap. According to Microchip TB3134, placing a ferrite bead on VUSB prevents noise coupling into analog sections.
The 64-QFN package exposes a thermal pad (EP) on pin 64 that must be soldered to a copper pour on the PCB for heat dissipation. Estimated: at 32 MHz full-speed operation with all peripherals active, typical current draw is 25-30 mA. Thermal resistance theta_JA is approximately 28 C/W for the 9x9 mm QFN with proper pad soldering, keeping junction rise well below 10 C in most use cases.
Keep the USB D+/D- traces short, matched in length, and routed over a continuous ground plane for 90 ohm differential impedance. Avoid stubs and vias in the USB differential pair. According to Microchip AN1227, the VBUS detect pin should be tied through a divider to monitor USB attach events; EMI common-mode chokes are recommended for FCC compliance on production boards.
Do not forget to configure the dual-partition Flash linker script for OTA updates - the default linker maps code to a single partition and breaks OTA. The MCLR pin requires a 10 kohm pull-up to VDD; leaving it floating can cause spurious resets. Configure the SOSC pins for secondary oscillator use or leave them NC with SOSC disabled in configuration bits to avoid power consumption.
מידע על תאימות
AEC-Q100 qualified for automotive per DigiKey listing 12177854. RoHS and REACH compliant. Lead-free and halogen-free packaging per Microchip product literature.
