PIC24FJ256GL406-E/PT - 16-Bit 32MHz 256KB Flash LCD MCU | Microchip
Référence : PIC24FJ256GL406-E/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $6.45 | $6,45 |
| 10 | $5.94 | $59,40 |
| 100 | $5.28 | $528,00 |
| 500 | $4.62 | $2 310,00 |
| 1 000 | $4.12 | $4 120,00 |
PIC24FJ256GL406-E/PT Présentation
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and peripherals. 16-bit PIC MCUs use a modified Harvard architecture with 16-bit instructions optimized for deterministic embedded control. The PIC24FJ family sits in the mid-range of Microchip's portfolio - more capable than 8-bit PIC10/12/16 parts and lower cost than 32-bit PIC32 families. It serves in the broader taxonomy: microcontroller -> embedded MCU -> semiconductor IC -> electronic component.
Key features include 16 MIPS CPU performance from the 32 MHz oscillator, hardware Cryptographic Engine, 24-bit PWM, 12-bit ADC at 200 ksps, multiple UART/SPI/I2C, full-speed USB 2.0 device/host/OTG, segmented LCD driver (up to 296 segments), and 16-bit Parallel Master Port. The dual-partition Flash with live update support enables firmware upgrades without downtime, critical for connected IoT and industrial sensor nodes.
The 'GL' variant of the family targets low-power, graphics-rich embedded designs such as metering, e-bike dashboards, white goods, healthcare monitors, and human-machine interface panels. Core Independent Peripherals - including CLC, MCCP, and SMT - allow complex event-driven tasks to run without CPU intervention, lowering average current draw and freeing MIPS for the application.
Typical applications include LoRa/BLE IoT sensor nodes, industrial automation controllers, smart thermostats, e-metering, glucose meters, infusion pumps, and USB peripherals. The 64-pin TQFP package provides ample I/O for human-interface segments, capacitive touch, and display integration.
When designing with this MCU, allocate sufficient Flash for OTA staging and plan a boot loader in a protected partition. Use Microchip's MPLAB X IDE and MCC code configurator; verify the segment count and bias for your LCD glass against the datasheet's segment mapping tables.
This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance, and design notes not consolidated on the manufacturer product page.
Alternatives de remplacement direct pour PIC24FJ256GL406-E/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ256GL406-E/PT (même facteur de forme et même empreinte) — différant par USB, Package, ADC, Operating Temperature, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ256GL406-I/PT
✅ Remplacement direct✓ En stock
$4.78 / unité
Voir la fiche technique →PIC24FJ128GL406-I/PT
✅ Remplacement direct✓ En stock
$2.84 / unité
Voir la fiche technique →PIC24FJ256GL405-E/PT
✅ Remplacement direct✓ En stock
$3.07 / unité
Voir la fiche technique →PIC24FJ256GB610-E/PT
✅ Remplacement direct✓ En stock
$3.95 / unité
Voir la fiche technique →PIC24FJ256GA606-E/PT
✅ Remplacement direct✓ En stock
$5.35 / unité
Voir la fiche technique →PIC24FJ128GU406-I/PT
✅ Remplacement direct✓ En stock
$3.36 / unité
Voir la fiche technique →PIC24FJ256GL406-E/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC 16-bit modified Harvard |
| Family | PIC24FJ GL4 (low-power, LCD) |
| CPU Speed | 32 MHz / 16 MIPS |
| Program Flash | 256 KB (256K x 8) |
| RAM | 32 KB |
| Dual-Partition Flash | Yes (live OTA update support) |
| USB | Full-Speed USB 2.0 (device/host/OTG) |
| LCD Controller | Segmented, up to 296 segments |
| ADC | 12-bit, 200 ksps |
| PWM | 24-bit (MCCP/SCCP) |
| Communication | UART, SPI, I2C |
| Operating Voltage | 1.8 V to 3.6 V |
| Température de fonctionnement | -40 C to +125 C (extended "E") |
| Boîtier | 64-pin TQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
Configuration des broches de PIC24FJ256GL406-E/PT
| Broche 1 | RA0 — Port A bit 0 / analog input |
| Broche 2 | RA1 — Port A bit 1 / analog input |
| Broche 3 | RA2 — Port A bit 2 / analog input |
| Broche 4 | RA3 — Port A bit 3 / analog input |
| Broche 5 | RA4 — Port A bit 4 / analog input |
| Broche 6 | RA5 — Port A bit 5 / analog input |
| Broche 7 | RA6 — Port A bit 6 / oscillator |
| Broche 8 | RA7 — Port A bit 7 / oscillator |
| Broche 9 | VSS — Ground |
| Broche 10 | VDD — Positive supply |
| Broche 11 | RB0 — Port B bit 0 |
| Broche 12 | RB1 — Port B bit 1 |
| Broche 13 | RB2 — Port B bit 2 |
| Broche 14 | RB3 — Port B bit 3 |
| Broche 15 | RB4 — Port B bit 4 |
| Broche 16 | RB5 — Port B bit 5 |
| Broche 17 | RB6 — Port B bit 6 / ICD PGC |
| Broche 18 | RB7 — Port B bit 7 / ICD PGD |
| Broche 19 | RC0 — Port C bit 0 |
| Broche 20 | RC1 — Port C bit 1 |
| Broche 21 | RC2 — Port C bit 2 |
| Broche 22 | RC3 — Port C bit 3 |
| Broche 23 | RC4 — Port C bit 4 |
| Broche 24 | RC5 — Port C bit 5 |
| Broche 25 | RC6 — Port C bit 6 |
| Broche 26 | RC7 — Port C bit 7 |
| Broche 27 | RD0 — Port D bit 0 |
| Broche 28 | RD1 — Port D bit 1 |
| Broche 29 | RD2 — Port D bit 2 |
| Broche 30 | RD3 — Port D bit 3 |
| Broche 31 | RD4 — Port D bit 4 |
| Broche 32 | RD5 — Port D bit 5 |
| Broche 33 | RD6 — Port D bit 6 |
| Broche 34 | RD7 — Port D bit 7 |
| Broche 35 | RE0 — Port E bit 0 |
| Broche 36 | RE1 — Port E bit 1 |
| Broche 37 | RE2 — Port E bit 2 |
| Broche 38 | RE3 — Port E bit 3 |
| Broche 39 | RE4 — Port E bit 4 |
| Broche 40 | RE5 — Port E bit 5 |
| Broche 41 | RE6 — Port E bit 6 |
| Broche 42 | RE7 — Port E bit 7 |
| Broche 43 | RF0 — Port F bit 0 |
| Broche 44 | RF1 — Port F bit 1 |
| Broche 45 | RF2 — Port F bit 2 |
| Broche 46 | RF3 — Port F bit 3 |
| Broche 47 | RF4 — Port F bit 4 |
| Broche 48 | RF5 — Port F bit 5 / D+ USB |
| Broche 49 | RF6 — Port F bit 6 / D- USB |
| Broche 50 | RG0 — Port G bit 0 |
| Broche 51 | RG1 — Port G bit 1 |
| Broche 52 | RG2 — Port G bit 2 |
| Broche 53 | RG3 — Port G bit 3 |
| Broche 54 | VSS — Ground |
| Broche 55 | VDD — Positive supply |
| Broche 56 | RG6 — Port G bit 6 |
| Broche 57 | RG7 — Port G bit 7 |
| Broche 58 | RG8 — Port G bit 8 |
| Broche 59 | RG9 — Port G bit 9 |
| Broche 60 | MCLR — Master clear (reset) |
| Broche 61 | OSC1 — Oscillator input |
| Broche 62 | OSC2 — Oscillator output |
| Broche 63 | VSS — Ground |
| Broche 64 | VDD — Positive supply |
Applications typiques
PIC24FJ256GL406-E/PT convient pour 6 applications: IoT Sensor Node with Segmented LCD, Industrial Automation Controller, Smart Thermostat and HVAC HMI, Medical Device - Glucose Meter / Infusion Pump, Automotive Dashboard / E-Bike HMI, USB Peripheral / Data Acquisition Module.
IoT Sensor Node with Segmented LCD
The PIC24FJ256GL406-E/PT fits IoT sensor nodes with integrated displays because its segmented LCD controller drives up to 296 segments directly, eliminating an external LCD driver IC and reducing BOM by $1-2. The dual-partition 256 KB Flash supports live Over-The-Air firmware updates - the new image is written to the inactive partition while the device keeps running the active image, then a controlled switch is performed. Core Independent Peripherals (CIPs) handle timing, ADC sampling, and display refresh without waking the CPU, achieving nanoWatt deep-sleep currents below 1 uA. Combined with a LoRa or BLE radio, the MCU delivers months of battery life on two AA cells while showing live readings on the LCD.
Recommandé
Industrial Automation Controller
In industrial control panels, the PIC24FJ256GL406-E/PT's 16 MIPS performance at 32 MHz executes PID loops and Modbus RTU/TCP stacks deterministically, while the 12-bit ADC at 200 ksps samples analog sensors (pressure, flow, temperature) at sub-millisecond intervals. The 24-bit MCCP and SCCP PWM modules generate motor and valve control signals with edge-aligned or center-aligned waveforms. Operating voltage 1.8-3.6 V plus the -40 C to +125 C extended temp range survive harsh factory-floor conditions. Full-speed USB 2.0 enables plug-and-play commissioning laptops, while the dual-partition Flash allows secure remote firmware refresh during plant maintenance windows.
Recommandé
Smart Thermostat and HVAC HMI
The PIC24FJ256GL406-E/PT drives the segmented LCD on residential thermostats and HVAC controllers, displaying temperature, humidity, setpoint, and mode icons directly without a TFT controller. The 256 KB Flash holds the Modbus/Modbus RTU, BACnet, or BLE/Zigbee stack plus HMI logic. The CIPs (CLC, MCCP, SMT) implement hysteresis control and deadband timing without CPU intervention. Multiple UART and I2C channels support external sensors (temperature, occupancy, CO2), and USB-CDC enables Wi-Fi module firmware updates through a service port. Low-power sleep modes drop current below 1 uA in standby, critical for battery-backed thermostats.
Recommandé
Medical Device - Glucose Meter / Infusion Pump
For medical glucose meters and infusion pumps, the PIC24FJ256GL406-E/PT provides the segmented LCD for readings, dual ADC inputs for the test strip amperometry, and the segmented LCD for therapy parameters. The dual-partition Flash supports secure IEC 62304-compliant firmware updates for home-care devices. Hardware CRC, ECC on Flash, and the optional Crypto engine on the GB6 sibling support tamper detection and authenticated firmware loading. 16 MIPS at 32 MHz delivers the response latency required for infusion bolus calculations. The 64-pin TQFP exposes enough I/O for keypad scan, motor driver control (peristaltic pump), and isolated USB data port for clinic downloads.
Recommandé
Automotive Dashboard / E-Bike HMI
In e-bike dashboards, motorcycle instrument clusters, and small automotive panels, the PIC24FJ256GL406-E/PT's extended -40 C to +125 C temperature grade handles under-hood and exposed vehicle environments. The segmented LCD displays speed, battery state, odometer, and turn indicators; the 12-bit ADC reads throttle position and battery voltage with hardware averaging. Full-speed USB allows diagnostic log retrieval at the service bay, while the 32 KB RAM supports real-time CAN-message bridging via MCP2517FD or similar. The dual-partition Flash enables secure OTA updates of dashboard firmware as e-bike firmware evolves. PWM channels drive backlight dimming and indicator LED brightness via hardware CCP.
Recommandé
USB Peripheral / Data Acquisition Module
For USB-based data acquisition and laboratory instruments, the PIC24FJ256GL406-E/PT's full-speed USB 2.0 with OTG enables direct connection to a PC host without an external PHY. The MCU presents CDC, HID, or vendor-class interfaces, supported by Microchip's free USB stack in MPLAB Harmony. The 12-bit ADC at 200 ksps captures analog sensor data, while the segmented LCD provides local status display without a PC. 256 KB Flash holds acquisition buffers and USB descriptors, and the dual-partition feature supports field firmware updates via USB DFU bootloader. Low USB suspend current and deep-sleep mode allow battery-powered portable instruments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ256GL406-E/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ256GL406-I/PT | PIC24FJ128GL406-I/PT | PIC24FJ256GL405-E/PT | PIC24FJ256GB610-E/PT | PIC24FJ256GA606-E/PT | PIC24FJ128GU406-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10) | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same | 64-pin TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 256 KB | 256 KB | 128 KB (-50%) | 128 KB (-50%) | 256 KB | 256 KB | 128 KB (-50%) |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| 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 | 32 MHz / 16 MIPS |
| Segmented LCD | Yes, up to 296 segments | Yes, up to 296 segments | Yes, up to 296 segments | Yes | No (TFT external) | No | Yes (graphics LCD) |
| USB | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG | Full-Speed USB 2.0 OTG |
| Dual-Partition Flash (OTA) | Yes | Yes | Yes | Yes | No (single partition) | No | Yes |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
Principaux différenciateurs
- Highest-density GL4 family member with 256 KB Flash in 64-pin TQFP (vs PIC24FJ256GL405-E/PT)
- Integrated segmented LCD controller without external driver (vs PIC24FJ256GB610-E/PT)
- Live OTA dual-partition Flash with hardware switch (vs PIC24FJ256GA606-E/PT)
Notes de conception
The PIC24FJ256GL406-E/PT supports multiple low-power modes including Sleep, Deep Sleep, and VBAT. For battery-powered designs, route the LCD charge pump through the internal regulator and use the RTC with the secondary oscillator (SOSC) to keep time while the core sleeps. Decouple every VDD/VSS pair with 100 nF plus 1 uF ceramic capacitors within 5 mm of the pins. Brown-out-reset (BOR) should remain enabled unless external supervision is supplied; the configurable BOR threshold ensures deterministic startup down to 1.8 V.
Place the 32.768 kHz crystal within 5 mm of SOSCO/SOSCI pins and guard it with a ground ring to minimize stray coupling from digital lines. For full-speed USB, route the D+/D- pair as a 90-ohm differential with no stubs and keep total length under 50 mm; place the 47 pF USB cable compensation caps as close as possible to RF5/RF6. Provide a continuous ground plane under the 64-pin TQFP and stitch vias around the perimeter to reduce EMI on the LCD segment traces.
Do not route ICD PGC/PGD (RB6/RB7) through long traces or series resistors without consulting the debugger documentation - this will break in-circuit programming. Always allocate one full Flash page as a bootloader region and use the dual-partition feature for OTA so a failed update does not brick the device. The segmented LCD segment-enable pins are multiplexed with digital I/O; verify the SE configuration in MCC before assigning segment pins to avoid conflicts with push-button inputs.
Estimated: At 32 MHz core clock, switching I/O toggling at 16 MHz generates harmonics up to ~80 MHz (5th harmonic). Keep analog traces (ADC, comparator) away from high-speed digital lines and use separate ground zones joined at the MCU analog ground pin. Add a small RC (100 ohm + 100 pF) on ADC inputs if the source impedance exceeds 5 kohm, otherwise the sample-and-hold acquisition time will be insufficient at 200 ksps.
Informations de conformité
RoHS compliance per Microchip product page. AEC-Q100 not qualified for automotive (use PIC24FJ256GB610 family AEC-Q100 variants for automotive). Halogen-free status not explicitly stated.
