PIC24FJ256GL406-E/MR - 256KB Flash LCD MCU, 64-QFN | Microchip
N.º de pieza: PIC24FJ256GL406-E/MR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.18 | $6,18 |
| 10 | $5.62 | $56,20 |
| 100 | $4.79 | $479,00 |
| 500 | $4.05 | $2.025,00 |
| 1.000 | $3.4 | $3.400,00 |
PIC24FJ256GL406-E/MR Descripción general
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.
Alternativas directas para PIC24FJ256GL406-E/MR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC24FJ256GL406-E/MR (mismo factor de forma y huella) — difiere en Package, Operating Temperature, ADC, USB, LCD Controller.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC24FJ128GL406-I/PT
✅ Sustitución directa✓ En stock
$2.84 / unidad
Ver hoja de datos →PIC24FJ256GL405-E/PT
✅ Sustitución directa✓ En stock
$3.07 / unidad
Ver hoja de datos →PIC24FJ128GU406-I/PT
✅ Sustitución directa✓ En stock
$3.36 / unidad
Ver hoja de datos →PIC24FJ128GL405-I/PT
✅ Sustitución directa✓ En stock
$4.1 / unidad
Ver hoja de datos →PIC24FJ256GA606-I/MR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC24FJ256GA406-I/MR
✅ Sustitución directa✓ En stock
$3.79 / unidad
Ver hoja de datos →PIC24FJ256GB606T-I/MR
✅ Sustitución directa✓ En stock
$2.92 / unidad
Ver hoja de datos →PIC24FJ256GL406-E/MR Valores máximos y características eléctricas
| 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) |
| Encapsulado | 64-pin QFN (9x9 mm) with EP |
| Tipo de montaje | Surface Mount |
| AEC-Q100 | Qualified (Automotive) |
| Estado RoHS | Compliant |
Configuración de pines de PIC24FJ256GL406-E/MR
| Pin 1 | RA0 — General purpose I/O / analog input |
| Pin 2 | RA1 — General purpose I/O / analog input |
| Pin 3 | RA2 — General purpose I/O / analog input |
| Pin 4 | RA3 — General purpose I/O / analog input |
| Pin 5 | RA4 — General purpose I/O / analog input |
| Pin 6 | RA5 — General purpose I/O / analog input |
| Pin 7 | RA6 — General purpose I/O / analog input |
| Pin 8 | RA7 — General purpose I/O / analog input |
| Pin 9 | RA8 — General purpose I/O / analog input |
| Pin 10 | RA9 — General purpose I/O / analog input |
| Pin 11 | RA10 — General purpose I/O / analog input |
| Pin 12 | RA11 — General purpose I/O / analog input |
| Pin 13 | RA12 — General purpose I/O / analog input |
| Pin 14 | RA13 — General purpose I/O / analog input |
| Pin 15 | RA14 — General purpose I/O / analog input |
| Pin 16 | RA15 — General purpose I/O / analog input |
| Pin 17 | VSS — Ground reference |
| Pin 18 | VDD — Positive supply voltage |
| Pin 19 | RB0 — General purpose I/O |
| Pin 20 | RB1 — General purpose I/O |
| Pin 21 | RB2 — General purpose I/O |
| Pin 22 | RB3 — General purpose I/O |
| Pin 23 | RB4 — General purpose I/O |
| Pin 24 | RB5 — General purpose I/O |
| Pin 25 | RB6 — General purpose I/O / programming clock |
| Pin 26 | RB7 — General purpose I/O / programming data |
| Pin 27 | RB8 — General purpose I/O |
| Pin 28 | RB9 — General purpose I/O |
| Pin 29 | RB10 — General purpose I/O |
| Pin 30 | RB11 — General purpose I/O |
| Pin 32 | RB12 — General purpose I/O |
| Pin 33 | RB13 — General purpose I/O |
| Pin 34 | RB14 — General purpose I/O |
| Pin 35 | RB15 — General purpose I/O |
| Pin 36 | RC0 — General purpose I/O / SOSCO |
| Pin 37 | RC1 — General purpose I/O / SOSCI |
| Pin 38 | RC2 — General purpose I/O |
| Pin 39 | RC3 — General purpose I/O |
| Pin 40 | RC4 — General purpose I/O |
| Pin 41 | RC5 — General purpose I/O |
| Pin 42 | RC6 — General purpose I/O |
| Pin 43 | RC7 — General purpose I/O |
| Pin 44 | RC8 — General purpose I/O |
| Pin 45 | RC9 — General purpose I/O |
| Pin 46 | RC10 — General purpose I/O |
| Pin 47 | RC11 — General purpose I/O |
| Pin 48 | RC12 — General purpose I/O |
| Pin 49 | RC13 — General purpose I/O |
| Pin 50 | RC14 — General purpose I/O |
| Pin 51 | RC15 — General purpose I/O |
| Pin 52 | RD0 — General purpose I/O |
| Pin 53 | RD1 — General purpose I/O |
| Pin 54 | RD2 — General purpose I/O |
| Pin 55 | RD3 — General purpose I/O |
| Pin 56 | RD4 — General purpose I/O |
| Pin 57 | RD5 — General purpose I/O |
| Pin 58 | RD6 — General purpose I/O |
| Pin 59 | RD7 — General purpose I/O |
| Pin 60 | VUSB — USB 3.3V regulator output |
| Pin 61 | D+ — USB D+ |
| Pin 62 | D- — USB D- |
| Pin 63 | VBUS — USB VBUS sense |
| Pin 64 | EP — Exposed pad (thermal / ground) |
| Pin 31 | NC — Not connected (per datasheet) |
Aplicaciones típicas
PIC24FJ256GL406-E/MR es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC24FJ256GL406-E/MR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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) |
Diferenciadores clave
- Integrated segmented LCD controller up to 512 segments (frente a PIC24FJ256GL405-E/PT)
- Higher Flash density with ECC protection (frente a PIC24FJ128GU406-I/PT)
- Automotive temperature grade (-40C to +125C) (frente a PIC24FJ128GL406-I/PT)
Notas de diseño
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.
Información de cumplimiento
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.
