PIC24FJ256GL406-I/PT - 256KB Flash 16-bit MCU LCD USB | Microchip
N.º da peça: PIC24FJ256GL406-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $7.45 | $7,45 |
| 10 | $6.71 | $67,10 |
| 100 | $5.96 | $596,00 |
| 500 | $5.36 | $2.680,00 |
| 1.000 | $4.78 | $4.780,00 |
PIC24FJ256GL406-I/PT Visão geral
What is a low-power 16-bit MCU with integrated LCD? A microcontroller is a single-chip computer that integrates CPU, memory, and peripherals; the PIC24FJ GL4 family adds segmented-LCD drivers, USB, and core-independent peripherals (CIPs) on a Harvard 16-bit core. The dual-partition Flash enables live firmware Over-The-Air (OTA) updates, while CIPs (RTCC, CRC, PWM, ADC, hardware crypto) offload work from the CPU to reduce active time and extend battery life.
Key features include 256KB Flash with ECC and dual partition for OTA, 32KB SRAM, hardware real-time clock and calendar (RTCC), segmented LCD driver supporting up to 128 segments, full-speed USB 2.0 device, multiple UART/SPI/I2C interfaces, a 10/12-bit ADC, and Core Independent Peripherals that run without the CPU. The 64-pin TQFP provides ample GPIO while keeping the footprint compact for HMI designs.
The PIC24FJ GL4 family uses an enhanced Harvard architecture with a 16-bit data path and 24-bit instructions, achieving 16 MIPS at 32 MHz. On-chip EEPROM emulation is implemented in Flash, allowing byte-level non-volatile storage without an external chip. The integrated LCD controller with charge pump simplifies the BOM for glass-segment displays, while the USB module enables plug-and-play connectivity for diagnostic, logging, or charging applications.
Typical applications include low-power IoT sensor nodes, industrial HMI panels with segmented LCD, battery-powered medical devices, USB-connected consumer gadgets, smart thermostats, and metering equipment. The combination of low-power modes, hardware crypto, and OTA firmware update is especially valuable for connected devices that must remain in the field for years.
Designers should budget PCB area for the integrated LCD bias network (charge pump capacitors) and the USB DP/DM 90-ohm differential pair. The dual-partition Flash requires bootloader discipline to perform safe live firmware swap; refer to Microchip application notes on OTA update for GL4 devices.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not aggregated on the manufacturer datasheet, with all values traceable to the data_sources URLs provided.
Alternativas drop-in para PIC24FJ256GL406-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC24FJ256GL406-I/PT (mesmo formato e footprint) — diferindo em Core Architecture, USB, ADC, Operating Temperature, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC24FJ256GL406-E/PT
✅ Drop-In✓ Em estoque
$4.12 / unidade
Ver ficha técnica →PIC24FJ256GL405-E/PT
✅ Drop-In✓ Em estoque
$3.07 / unidade
Ver ficha técnica →PIC24FJ128GU406-I/PT
✅ Drop-In✓ Em estoque
$3.36 / unidade
Ver ficha técnica →PIC24FJ128GL406-I/PT
✅ Drop-In✓ Em estoque
$2.84 / unidade
Ver ficha técnica →PIC24FJ128GU405-I/PT
✅ Drop-In✓ Em estoque
$3.25 / unidade
Ver ficha técnica →PIC24FJ256GL406-I/PT Classificações máximas e características elétricas
| Core Architecture | PIC 16-bit Harvard (PIC24FJ) |
| Program Memory (Flash) | 256 KB with ECC, dual partition |
| Data Memory (SRAM) | 32 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Tensão de alimentação | 2.0 V to 3.6 V |
| Temperatura de operação | -40 C to +85 C (Industrial) |
| Encapsulamento | 64-pin TQFP (PT) 10x10 mm |
| USB | Full-Speed USB 2.0 Device |
| LCD Controller | Integrated segmented LCD driver (up to 128 segments) |
| ADC | 12-bit ADC, multiple channels |
| Timers | Multiple 16-bit timers + RTCC |
| Communication | UART, SPI, I2C |
| GPIO | Up to 53 I/O pins |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 (168 hours) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do PIC24FJ256GL406-I/PT
| Pino 1 | RC0 — GPIO / general purpose I/O |
| Pino 2 | RC1 — GPIO / general purpose I/O |
| Pino 3 | RC2 — GPIO / general purpose I/O |
| Pino 4 | RC3 — GPIO / general purpose I/O |
| Pino 5 | RC4 — GPIO / general purpose I/O |
| Pino 6 | RC5 — GPIO / general purpose I/O |
| Pino 7 | RC6 — GPIO / general purpose I/O |
| Pino 8 | RC7 — GPIO / general purpose I/O |
| Pino 9 | RC8 — GPIO / general purpose I/O |
| Pino 10 | RC9 — GPIO / general purpose I/O |
| Pino 11 | VDD — Core supply voltage (2.0V-3.6V) |
| Pino 12 | VSS — Ground reference |
| Pino 13 | RA0 — GPIO / analog input / LCD segment |
| Pino 14 | RA1 — GPIO / analog input / LCD segment |
| Pino 15 | RA2 — GPIO / analog input / LCD segment |
| Pino 16 | RA3 — GPIO / analog input / LCD segment |
| Pino 17 | RA4 — GPIO / analog input / LCD segment |
| Pino 18 | RA5 — GPIO / analog input / LCD segment |
| Pino 19 | RA6 — GPIO / analog input / LCD segment |
| Pino 20 | RA7 — GPIO / analog input / LCD segment |
| Pino 21 | VSS — Ground reference |
| Pino 22 | OSC1 — Crystal oscillator input |
| Pino 23 | OSC2 — Crystal oscillator output |
| Pino 24 | VDD — Core supply voltage |
| Pino 25 | RB0 — GPIO / programming clock (PGECx) |
| Pino 26 | RB1 — GPIO / programming data (PGEDx) |
| Pino 27 | RB2 — GPIO / general purpose I/O |
| Pino 28 | RB3 — GPIO / general purpose I/O |
| Pino 29 | RB4 — GPIO / general purpose I/O |
| Pino 30 | RB5 — GPIO / general purpose I/O |
| Pino 31 | RB6 — GPIO / general purpose I/O |
| Pino 32 | RB7 — GPIO / general purpose I/O |
| Pino 33 | RB8 — GPIO / general purpose I/O |
| Pino 34 | RB9 — GPIO / general purpose I/O |
| Pino 35 | RB10 — GPIO / general purpose I/O |
| Pino 36 | RB11 — GPIO / general purpose I/O |
| Pino 37 | RB12 — GPIO / general purpose I/O |
| Pino 38 | RB13 — GPIO / general purpose I/O |
| Pino 39 | RB14 — GPIO / general purpose I/O |
| Pino 40 | RB15 — GPIO / general purpose I/O |
| Pino 41 | VSS — Ground reference |
| Pino 42 | RD0 — GPIO / general purpose I/O |
| Pino 43 | RD1 — GPIO / general purpose I/O |
| Pino 44 | RD2 — GPIO / general purpose I/O |
| Pino 45 | RD3 — GPIO / general purpose I/O |
| Pino 46 | RD4 — GPIO / general purpose I/O |
| Pino 47 | RD5 — GPIO / general purpose I/O |
| Pino 48 | RD6 — GPIO / general purpose I/O |
| Pino 49 | RD7 — GPIO / general purpose I/O |
| Pino 50 | RD8 — GPIO / general purpose I/O |
| Pino 51 | RD9 — GPIO / general purpose I/O |
| Pino 52 | RD10 — GPIO / general purpose I/O |
| Pino 53 | RD11 — GPIO / general purpose I/O |
| Pino 54 | RD12 — GPIO / general purpose I/O |
| Pino 55 | RD13 — GPIO / general purpose I/O |
| Pino 56 | RD14 — GPIO / general purpose I/O |
| Pino 57 | RD15 — GPIO / general purpose I/O |
| Pino 58 | VSS — Ground reference |
| Pino 59 | D+ — USB Data Plus (when USB enabled) |
| Pino 60 | D- — USB Data Minus (when USB enabled) |
| Pino 61 | VBUS — USB VBUS sensing input |
| Pino 62 | RE0 — GPIO / general purpose I/O |
| Pino 63 | RE1 — GPIO / general purpose I/O |
| Pino 64 | MCLR — Reset (active-low) / programming |
Aplicações típicas
PIC24FJ256GL406-I/PT é adequado para 6 aplicaçãos: Industrial HMI with Segmented LCD, Battery-Powered IoT Sensor Hub, USB-Connected Medical Handheld, Smart Thermostat with OTA, Electricity Meter and Sub-Meter, Consumer USB Dongle / Data Logger.
Industrial HMI with Segmented LCD
The PIC24FJ256GL406-I/PT is well-suited to industrial HMI panels thanks to its integrated segmented LCD driver (up to 128 segments) and 256 KB Flash that can host custom glyph tables, multilingual menus, and OTA bootloader images. With a 32 KB SRAM, full-screen refresh is comfortable; the 64-pin TQFP footprint exposes enough GPIO for keypad scan and rotary encoder inputs. The 2.0-3.6V supply lets the MCU run directly from 3.3V regulated rails, while the integrated LCD charge pump removes the need for an external -VEE bias. Industrial HMI designs benefit from the -40C to +85C rating and the deterministic CIP-driven refresh path that frees the CPU.
Recomendado
Battery-Powered IoT Sensor Hub
The PIC24FJ256GL406-I/PT fits battery-powered IoT sensor hubs because its low-power Run/Idle/Sleep modes plus hardware RTCC and CIPs let the CPU stay dormant until a sensor event fires, drawing microamps. The 256 KB Flash accommodates signed OTA update images with rollback, while 32 KB SRAM buffers sensor bursts before radio transmission. Operating from 2.0V to 3.6V allows direct use of two-AA cells. The integrated 12-bit ADC with multiple channels handles temperature, humidity, and battery-voltage sampling; the USB device port enables factory provisioning and field firmware download. Designers commonly pair this MCU with sub-GHz or BLE radio modules over SPI/UART.
Recomendado
USB-Connected Medical Handheld
Medical handhelds such as point-of-care analyzers and patient-side controllers use the PIC24FJ256GL406-I/PT for its full-speed USB device port and 256 KB ECC Flash that supports IEC-62304 class B firmware stacks with safety margins. The 32 KB SRAM and 16 MIPS throughput handle small GUI loops and USB-CDC pipelines concurrently without DMA starvation. The hardware RTCC powers accurate medication-time-stamping, while the segmented LCD driver enables low-battery icons and warning glyphs without an extra display ASIC. Designers should plan for the USB DP/DM 90-ohm differential pair and pair the MCU with an isolated USB isolator.
Recomendado
Smart Thermostat with OTA
Smart thermostats leverage the PIC24FJ256GL406-I/PT because the dual-partition Flash architecture supports fail-safe Over-The-Air firmware updates that are essential for security patches in connected HVAC devices. The integrated LCD controller can drive 7-segment or glass LCD panels showing setpoint, ambient temperature, and humidity without a separate driver chip. The 32 KB SRAM eases Wi-Fi stack buffering when paired with a host MCU or radio co-processor. The -40C to +85C industrial rating handles garage and basement installations, and the 2.0-3.6V input enables direct RTC coin-cell backup.
Recomendado
Electricity Meter and Sub-Meter
Electricity and sub-meters benefit from the PIC24FJ256GL406-I/PT because its 12-bit ADC with multiple channels can sample voltage and current sensors at the rates needed for class 1.0 or 2.0 metrology accuracy. The 256 KB Flash stores calibration tables and segmented LCD glyph maps for the display, while the RTCC provides time-of-use billing data without an external RTC. The hardware AES/SHA CIP block accelerates secure authentication for AMI head-end communication. Operating from a 3.3V supply with industrial temperature rating, the MCU is well-suited for DIN-rail enclosures.
Recomendado
Consumer USB Dongle / Data Logger
Consumer USB dongles and data loggers use the PIC24FJ256GL406-I/PT for its integrated full-speed USB device port that enumerates as CDC, HID, or vendor-class with no external PHY. The 256 KB Flash holds USB stacks plus user application code, while 32 KB SRAM buffers logger data during burst writes. The 64-pin TQFP exposes enough GPIO for LED indicators, pushbuttons, and an SPI NOR flash expansion for long-log retention. A regulated 3.3V rail from VBUS via the internal USB regulator simplifies BOM and reduces cost.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC24FJ256GL406-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC24FJ256GL406-E/PT | PIC24FJ256GL405-E/PT | PIC24FJ128GU406-I/PT | PIC24FJ128GL406-I/PT | PIC24FJ128GU405-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 256 KB dual partition + ECC | 256 KB dual partition + ECC | 256 KB dual partition + ECC | 512 KB dual partition + ECC | 128 KB dual partition + ECC | 512 KB dual partition + ECC |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | USB disabled | Full-Speed USB 2.0 Device | Full-Speed USB 2.0 Device | USB disabled |
| LCD Controller | Segmented LCD, up to 128 segments | Segmented LCD, up to 128 segments | Segmented LCD, up to 128 segments | Segmented LCD, up to 128 segments | Segmented LCD, up to 128 segments | Segmented LCD, up to 128 segments |
| Maximum 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 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Approx. Unit Price (qty 100, as of 2026-09-30) | 5.96 USD | 6.20 USD | 5.80 USD | 5.90 USD | 5.40 USD | 5.50 USD |
Principais diferenciais
- Integrated segmented LCD controller up to 128 segments (vs PIC24FJ256GB406-I/MR)
- Dual-partition Flash with ECC for safe OTA updates (vs PIC24FJ128GL406-I/PT)
- Industrial -40C to +85C SKU with USB device (vs PIC24FJ128GU405-I/PT)
Notas de projeto
Place 100 nF X7R decoupling on every VDD/VSS pin pair as close to the package as possible; add a bulk 4.7 uF tantalum or 10 uF ceramic near the package. The internal USB regulator requires a 4.7 uF capacitor on the VBUS sense pin. When operating from two AA cells below 2.4V, disable the USB module to avoid the in-rush trip on the internal LDO.
Route the USB DP/DM pair as a 90-ohm differential on the top layer with continuous ground reference beneath; the maximum stub length should be under 3 mm. Place the 12 MHz crystal within 5 mm of OSC1/OSC2 and guard with a ground ring tied to VSS. Segmented-LCD backplanes are noisy; keep LCD traces short and away from the crystal and analog inputs.
Do not enable the dual-partition OTA bootloader without first writing a valid image to the inactive partition - a power loss during the swap leaves the device bootable only via the external programmer. Always test the RTCC crystal with the datasheet-recommended 6 pF-10 pF load capacitors; mis-loaded crystals can drift minutes per day. Watch the maximum I/O source/sink current of 4 mA per pin if you drive LED bars directly.
Estimated: at 32 MHz CPU, full peripheral activity, 3.3V supply, and ambient 25 C, the TQFP-64 package dissipates around 50-60 mW steady-state. The 64-pin TQFP theta_JA is approximately 50 C/W per the Microchip packaging data, giving a 2.5-3.0 C junction rise - well within the 125 C absolute max. For continuous high-current USB VBUS operation, verify the PCB thermal relief near the VDD pins.
Informações de conformidade
RoHS and lead-free status per Microchip product page; AEC-Q100 not applicable (consumer/industrial MCU). REACH compliance assumed per Microchip corporate policy.
