PIC24FJ256GL406T-I/MR - 16-bit MCU, 256KB Flash, USB, LCD | Microchip
N.º da peça: PIC24FJ256GL406T-I/MR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $2.95 | $1.475,00 |
| 1.000 | $2.65 | $2.650,00 |
| 3.000 | $2.4 | $7.200,00 |
PIC24FJ256GL406T-I/MR Visão geral
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.
Alternativas drop-in para PIC24FJ256GL406T-I/MR — 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 PIC24FJ256GL406T-I/MR (mesmo formato e footprint) — diferindo em Package, ADC, USB, Operating Temperature, I/O Pins.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC24FJ256GL406-I/MR
✅ Drop-In✓ Em estoque
$3.65 / unidade
Ver ficha técnica →PIC24FJ256GL406T-I/PT
✅ Drop-In✓ Em estoque
$4.85 / unidade
Ver ficha técnica →PIC24FJ256GL406-E/MR
✅ Drop-In✓ Em estoque
$3.4 / unidade
Ver ficha técnica →PIC24FJ128GL406-I/MR
✅ Drop-In✓ Em estoque
$4.05 / unidade
Ver ficha técnica →PIC24FJ256GU406-I/MR
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.82 / unidade
Ver ficha técnica →PIC24FJ256GA406-I/MR
✅ Drop-In✓ Em estoque
$3.79 / unidade
Ver ficha técnica →PIC24FJ256GL406T-I/MR Classificações máximas e características elétricas
| 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 |
| Encapsulamento | 64-pin QFN (9x9 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40C to +85C (Industrial) |
| Status RoHS | Compliant |
| AEC-Q100 | Qualified (Automotive grade variant) |
Configuração de pinos do PIC24FJ256GL406T-I/MR
| Pino 1 | RB0/AN0 — Port B bit 0 / ADC analog input 0 |
| Pino 2 | RB1/AN1 — Port B bit 1 / ADC analog input 1 |
| Pino 3 | RB2/AN2 — Port B bit 2 / ADC analog input 2 |
| Pino 4 | RB3/AN3 — Port B bit 3 / ADC analog input 3 |
| Pino 5 | VSS — Ground |
| Pino 6 | VDD — Positive supply |
| Pino 7 | RB4/AN4 — Port B bit 4 / ADC analog input 4 |
| Pino 8 | RB5/AN5 — Port B bit 5 / ADC analog input 5 |
| Pino 9 | RB6/AN6 — Port B bit 6 / ADC analog input 6 |
| Pino 10 | RB7/AN7 — Port B bit 7 / ADC analog input 7 |
| Pino 11 | RC0 — Port C bit 0 |
| Pino 12 | RC1 — Port C bit 1 |
| Pino 13 | RC2 — Port C bit 2 |
| Pino 14 | RC3 — Port C bit 3 |
| Pino 15 | RC4 — Port C bit 4 |
| Pino 16 | RC5 — Port C bit 5 |
| Pino 17 | RC6 — Port C bit 6 |
| Pino 18 | RC7 — Port C bit 7 |
| Pino 19 | VSS — Ground |
| Pino 20 | VDD — Positive supply |
| Pino 21 | RD0 — Port D bit 0 |
| Pino 22 | RD1 — Port D bit 1 |
| Pino 23 | RD2 — Port D bit 2 |
| Pino 24 | RD3 — Port D bit 3 |
| Pino 25 | RD4 — Port D bit 4 |
| Pino 26 | RD5 — Port D bit 5 |
| Pino 27 | RD6 — Port D bit 6 |
| Pino 28 | RD7 — Port D bit 7 |
| Pino 29 | RE0 — Port E bit 0 |
| Pino 30 | RE1 — Port E bit 1 |
| Pino 31 | RE2 — Port E bit 2 |
| Pino 32 | RE3 — Port E bit 3 |
| Pino 33 | RE4 — Port E bit 4 |
| Pino 34 | RE5 — Port E bit 5 |
| Pino 35 | RE6 — Port E bit 6 |
| Pino 36 | RE7 — Port E bit 7 |
| Pino 37 | RF0 — Port F bit 0 |
| Pino 38 | RF1 — Port F bit 1 |
| Pino 39 | RF2 — Port F bit 2 |
| Pino 40 | RF3 — Port F bit 3 |
| Pino 41 | RF4 — Port F bit 4 |
| Pino 42 | RF5 — Port F bit 5 |
| Pino 43 | RF6 — Port F bit 6 |
| Pino 44 | RF7 — Port F bit 7 |
| Pino 45 | RG0 — Port G bit 0 |
| Pino 46 | RG1 — Port G bit 1 |
| Pino 47 | RG2 — Port G bit 2 |
| Pino 48 | RG3 — Port G bit 3 |
| Pino 49 | RG6 — Port G bit 6 |
| Pino 50 | RG7 — Port G bit 7 |
| Pino 51 | RG8 — Port G bit 8 |
| Pino 52 | RG9 — Port G bit 9 |
| Pino 53 | MCLR — Master clear reset input |
| Pino 54 | OSC1 — Oscillator input |
| Pino 55 | OSC2 — Oscillator output |
| Pino 56 | SOSCO — Secondary oscillator output |
| Pino 57 | SOSCI — Secondary oscillator input |
| Pino 58 | D+ — USB D+ data line |
| Pino 59 | D- — USB D- data line |
| Pino 60 | VBUS — USB VBUS detect |
| Pino 61 | VUSB — USB internal regulator output |
| Pino 62 | AVDD — Analog supply |
| Pino 63 | AVSS — Analog ground |
| Pino 64 | EP — Exposed thermal pad (connect to ground) |
Aplicações típicas
PIC24FJ256GL406T-I/MR é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC24FJ256GL406T-I/MR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Dual-partition Flash with ECC (vs PIC24FJ256GA406-I/MR)
- Higher RAM capacity (vs PIC24FJ256GA406-I/MR)
- Automotive grade option in same package (vs PIC24FJ128GL406-I/MR)
Notas de projeto
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.
Informações de conformidade
AEC-Q100 qualified for automotive per DigiKey listing 12177854. RoHS and REACH compliant. Lead-free and halogen-free packaging per Microchip product literature.
