PIC24FJ512GL408-E/PT - 16-bit MCU 512KB Flash LCD USB TQFP-80
MPN: PIC24FJ512GL408-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.12 | $9.12 |
| 10 | $8.27 | $82.70 |
| 100 | $7.05 | $705.00 |
| 500 | $6.32 | $3,160.00 |
| 1,000 | $5.74 | $5,740.00 |
PIC24FJ512GL408-E/PT Overview
A 16-bit microcontroller (MCU) is a microprocessor that processes data 16 bits at a time, sitting between 8-bit MCUs and 32-bit MCUs in the embedded hierarchy. Within that hierarchy, the PIC24F belongs to Microchip's PIC24 family -> 16-bit MCU class -> microcontroller -> embedded processor -> semiconductor. The 'F' suffix denotes Flash program memory and CMOS process, while 'J' indicates the low-power eXtreme Low Power (XLP) technology platform. Dual Partition Flash enables live Over-The-Air (OTA) firmware updates by allowing one partition to run while the other is reprogrammed.
Key features include 512KB ECC Flash (organized as Dual Partition for OTA updates), 32KB SRAM, integrated segmented LCD driver (typically up to 480 segments), 24-channel 10/12-bit ADC, 1x 10-bit DAC, Core Independent Peripherals (CIPs) such as CLC, MCCP, and PWM, full-speed USB 2.0 with OTG, and 4-bit PMP/EPMP. Operating voltage ranges from 2.0V to 3.6V with multiple low-power sleep modes and nanoWatt XLP technology for battery-sensitive designs.
Architecturally, the PIC24FJ512GL408 uses a modified Harvard architecture with 24-bit instruction words and 16-bit data path. The device integrates hardware cryptographic support, JTAG programming/debug interface, and up to 69 I/O pins. The dual-partition Flash is critical for safety-critical and OTA-update designs where firmware cannot be interrupted during field upgrades.
Typical applications include low-power human-machine interface (HMI) panels with integrated LCD, USB-connected industrial sensors and instrumentation, secure IoT edge nodes with OTA capability, medical point-of-care devices with display readouts, and consumer appliances with segmented LCD user interfaces. The wide operating temperature range (-40C to +125C) and integrated USB make it a strong fit for portable and field-deployed embedded designs.
When designing with this device, choose the appropriate Flash partition scheme for OTA updates early in firmware planning. Decoupling capacitors near VDD/AVDD pins and proper USB D+/D- trace impedance (90 ohms differential) are essential for reliable USB operation. Always verify segment assignments against the specific LCD glass specifications in the datasheet's LCD chapter.
This page synthesizes distributor pricing, drop-in alternative listings from the PIC24F family, and practical design notes not aggregated in the manufacturer datasheet alone.
Drop-in alternatives for PIC24FJ512GL408-E/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC24FJ512GL408-E/PT (same form factor and footprint) — differing in Operating Temperature, Package, USB, ADC, LCD Controller.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ512GL408-I/PT
✅ Drop-In✓ In Stock
$6.3 / Unit
View Datasheet →PIC24FJ256GL408-E/PT
✅ Drop-In✓ In Stock
$4.62 / Unit
View Datasheet →PIC24FJ256GL410-E/PT
✅ Drop-In✓ In Stock
$2.78 / Unit
View Datasheet →PIC24FJ512GL406-I/PT
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →PIC24FJ128GL406-I/PT
✅ Drop-In✓ In Stock
$2.84 / Unit
View Datasheet →PIC24FJ128GU406-I/PT
✅ Drop-In✓ In Stock
$3.36 / Unit
View Datasheet →PIC24FJ512GL408-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Family | PIC24FJ 'GU4/GL4' |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 512 KB (Dual Partition, ECC) |
| SRAM | 32 KB |
| Operating Voltage (VDD) | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +125 C (E grade) |
| ADC | 24 channels x 10/12-bit |
| DAC | 1 x 10-bit |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| LCD Driver | Integrated, up to 480 segments (verify per glass) |
| Timers | Multiple 16-bit and 32-bit timers (MCCP/SCCP) |
| I/O Pins | Up to 69 (verify by package) |
| Package | 80-pin TQFP (PT), 12x12 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Programming/Debug | JTAG, ICSP (4-wire) |
| Low-Power Modes | nanoWatt XLP (Sleep/Idle/Deep Sleep) |
PIC24FJ512GL408-E/PT Pin Configuration
| Pin 1 | RE0 — Port E bit 0 (I/O or LCD SEG) |
| Pin 2 | RE1 — Port E bit 1 (I/O or LCD SEG) |
| Pin 3 | RE2 — Port E bit 2 (I/O or LCD SEG) |
| Pin 4 | RE3 — Port E bit 3 (I/O or LCD SEG) |
| Pin 5 | RE4 — Port E bit 4 (I/O or LCD SEG) |
| Pin 6 | RE5 — Port E bit 5 (I/O or LCD SEG) |
| Pin 7 | RE6 — Port E bit 6 (I/O or LCD SEG) |
| Pin 8 | RE7 — Port E bit 7 (I/O or LCD SEG) |
| Pin 9 | RG6 — Port G bit 6 (I/O or LCD SEG) |
| Pin 10 | RG7 — Port G bit 7 (I/O or LCD SEG) |
| Pin 11 | RG8 — Port G bit 8 (I/O or LCD SEG) |
| Pin 12 | MCLR — Master Clear (reset, active low) |
| Pin 13 | RG9 — Port G bit 9 (I/O or LCD SEG) |
| Pin 14 | VDD — Positive supply voltage (2.0-3.6V) |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply voltage |
| Pin 17 | ENVREG — Voltage regulator enable |
| Pin 18 | AVDD — Analog positive supply |
| Pin 19 | AVSS — Analog ground |
| Pin 20 | RB0 — Port B bit 0 (I/O or AN0) |
| Pin 21 | RB1 — Port B bit 1 (I/O or AN1) |
| Pin 22 | RB2 — Port B bit 2 (I/O or AN2) |
| Pin 23 | RB3 — Port B bit 3 (I/O or AN3) |
| Pin 24 | RB4 — Port B bit 4 (I/O or AN4) |
| Pin 25 | RB5 — Port B bit 5 (I/O or AN5) |
| Pin 26 | RB6 — Port B bit 6 (I/O or AN6 or ICD PGC) |
| Pin 27 | RB7 — Port B bit 7 (I/O or AN7 or ICD PGD) |
| Pin 28 | RB8 — Port B bit 8 (I/O or AN8) |
| Pin 29 | RB9 — Port B bit 9 (I/O or AN9) |
| Pin 30 | RB10 — Port B bit 10 (I/O or AN10) |
| Pin 31 | RB11 — Port B bit 11 (I/O or AN11) |
| Pin 32 | RB12 — Port B bit 12 (I/O or AN12) |
| Pin 33 | RB13 — Port B bit 13 (I/O or AN13) |
| Pin 34 | RB14 — Port B bit 14 (I/O or AN14) |
| Pin 35 | RB15 — Port B bit 15 (I/O or AN15) |
| Pin 36 | VSS — Ground |
| Pin 37 | VDD — Positive supply |
| Pin 38 | RC1 — Port C bit 1 (I/O or AN17) |
| Pin 39 | RC2 — Port C bit 2 (I/O or AN18) |
| Pin 40 | RC3 — Port C bit 3 (I/O or AN19) |
| Pin 41 | RC4 — Port C bit 4 (I/O or AN20) |
| Pin 42 | RD0 — Port D bit 0 (I/O or AN24) |
| Pin 43 | RD1 — Port D bit 1 (I/O or AN25) |
| Pin 44 | RD2 — Port D bit 2 (I/O or AN26) |
| Pin 45 | RD3 — Port D bit 3 (I/O or AN27) |
| Pin 46 | RD4 — Port D bit 4 (I/O or AN28) |
| Pin 47 | RD5 — Port D bit 5 (I/O or AN29) |
| Pin 48 | RD6 — Port D bit 6 (I/O or AN30) |
| Pin 49 | RD7 — Port D bit 7 (I/O or AN31) |
| Pin 50 | RD8 — Port D bit 8 (I/O) |
| Pin 51 | RD9 — Port D bit 9 (I/O) |
| Pin 52 | RD10 — Port D bit 10 (I/O) |
| Pin 53 | RD11 — Port D bit 11 (I/O) |
| Pin 54 | RD12 — Port D bit 12 (I/O) |
| Pin 55 | RD13 — Port D bit 13 (I/O) |
| Pin 56 | RD14 — Port D bit 14 (I/O) |
| Pin 57 | RD15 — Port D bit 15 (I/O) |
| Pin 58 | VSS — Ground |
| Pin 59 | VDD — Positive supply |
| Pin 60 | RF0 — Port F bit 0 (I/O or LCD SEG) |
| Pin 61 | RF1 — Port F bit 1 (I/O or LCD SEG) |
| Pin 62 | RF2 — Port F bit 2 (I/O or LCD SEG) |
| Pin 63 | RF3 — Port F bit 3 (I/O or LCD SEG) |
| Pin 64 | RF4 — Port F bit 4 (I/O or LCD SEG) |
| Pin 65 | RF5 — Port F bit 5 (I/O or LCD SEG) |
| Pin 66 | RF6 — Port F bit 6 (I/O or LCD SEG) |
| Pin 67 | RF7 — Port F bit 7 (I/O or LCD SEG) |
| Pin 68 | RF8 — Port F bit 8 (I/O or LCD SEG) |
| Pin 69 | RG0 — Port G bit 0 (I/O or LCD SEG) |
| Pin 70 | RG1 — Port G bit 1 (I/O or LCD SEG) |
| Pin 71 | OSC1 — Crystal oscillator input |
| Pin 72 | OSC2 — Crystal oscillator output |
| Pin 73 | RG2 — Port G bit 2 (I/O or LCD SEG) |
| Pin 74 | RG3 — Port G bit 3 (I/O or LCD SEG) |
| Pin 75 | D+ — USB data plus |
| Pin 76 | D- — USB data minus |
| Pin 77 | VBUS — USB VBUS detect (5V tolerant) |
| Pin 78 | RG12 — Port G bit 12 (I/O or LCD SEG) |
| Pin 79 | RG13 — Port G bit 13 (I/O or LCD SEG) |
| Pin 80 | RG14 — Port G bit 14 (I/O or LCD SEG) |
Typical Applications
PIC24FJ512GL408-E/PT is suitable for 6 applications: Low-Power HMI Panels with Integrated LCD, USB-Connected Industrial Sensors and Instrumentation, Secure IoT Edge Nodes with OTA Updates, Medical Point-of-Care Devices with Display Readouts, Consumer Appliances with Segmented LCD Interfaces, Battery-Powered Field Data Loggers.
Low-Power HMI Panels with Integrated LCD
The PIC24FJ512GL408-E/PT is purpose-built for low-power human-machine interface panels with integrated segmented LCD readouts. Its integrated LCD driver supports up to 480 segments, eliminating the need for an external LCD controller IC and reducing BOM cost in industrial control panels, thermostat displays, and appliance front-panel interfaces. The 512KB Dual Partition Flash enables live OTA firmware updates in deployed panels, while the 32KB SRAM supports rich menu systems and graphics rendering. Operating from 2.0V to 3.6V, the part handles battery-backed and 3.3V-regulated industrial rails equally well, with nanoWatt XLP deep-sleep currents under 1 uA for battery-powered handheld HMIs.
Recommended
USB-Connected Industrial Sensors and Instrumentation
With its integrated full-speed USB 2.0 Device/Host/OTG controller, the PIC24FJ512GL408-E/PT is well suited for USB-connected industrial sensor modules and benchtop instrumentation. The 24-channel 10/12-bit ADC handles multiple analog sensor inputs (temperature, pressure, flow) without external signal conditioning, while the 1x 10-bit DAC supports calibration output or analog setpoint generation. USB-CDC and USB-HID classes eliminate custom driver requirements on host PCs, accelerating time-to-market for measurement instruments. The 32 MHz / 16 MIPS core comfortably runs USB stacks, ADC sampling, and display updates concurrently.
Recommended
Secure IoT Edge Nodes with OTA Updates
The PIC24FJ512GL408-E/PT is an excellent fit for IoT edge nodes requiring secure Over-The-Air firmware updates. Its 512KB Dual Partition Flash allows one partition to run while the other is reprogrammed via Wi-Fi, Bluetooth, or LoRa companion modules, enabling seamless remote upgrades without service interruption. Hardware crypto accelerators and JTAG-based secure programming protect firmware IP, while the low-power XLP modes extend battery life in solar- or battery-harvested deployments. The integrated USB adds a wired commissioning/configuration interface for initial setup and factory provisioning.
Recommended
Medical Point-of-Care Devices with Display Readouts
Medical point-of-care devices benefit from the PIC24FJ512GL408-E/PT's combination of integrated LCD support, USB connectivity for data transfer to hospital information systems, and extended temperature operation for clinical environments. The 24-channel 12-bit ADC supports precision sensor measurements for blood glucose, hemoglobin, and electrolyte analyzers, while the integrated segmented LCD driver directly drives multi-character result displays without additional driver ICs. The 32KB SRAM accommodates patient data buffering and onboard calibration tables. Extended operating temperature (-40 C to +125 C) ensures reliability in refrigerated storage and warm clinical settings.
Recommended
Consumer Appliances with Segmented LCD Interfaces
Washing machines, dishwashers, microwave ovens, and HVAC controllers increasingly use segmented LCD user interfaces, and the PIC24FJ512GL408-E/PT targets exactly this application segment. The integrated LCD driver handles up to 480 segments, supporting complex icons, multi-digit numeric displays, and status indicators without external hardware. The 512KB Flash accommodates full feature sets including multilingual menus, energy-monitoring algorithms, and connectivity stacks. Operating from 2.0V to 3.6V, the part works with both battery-backed RTC designs and direct 3.3V regulator outputs from the main SMPS.
Recommended
Battery-Powered Field Data Loggers
Portable battery-powered data loggers for environmental monitoring, asset tracking, and field telemetry benefit from the PIC24FJ512GL408-E/PT's nanoWatt XLP low-power modes, USB charging interface, and integrated segmented LCD for local status display. Deep-sleep currents under 1 uA allow multi-year operation from a single coin cell when waking periodically for sensor sampling. The 512KB Dual Partition Flash supports OTA firmware updates over LoRa or BLE companion modules without field returns. The 24-channel ADC and 1x DAC support diverse sensor types including temperature, humidity, pressure, and 4-20 mA industrial loops.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ512GL408-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ512GL408-I/PT | PIC24FJ256GL408-E/PT | PIC24FJ256GL410-E/PT | PIC24FJ512GL406-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-80 (PT) 12x12 mm | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Flash Memory | 512 KB (Dual Partition) | 512 KB (Dual Partition) | 256 KB (-50%) | 256 KB (-50%) | 512 KB |
| SRAM | 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 |
| Temperature Grade | E: -40 to +125 C | I: -40 to +85 C | E: -40 to +125 C | E: -40 to +125 C | I: -40 to +85 C |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG |
| LCD Segments (max) | Up to 480 (verify per glass) | Up to 480 | Up to 480 | Up to 480 | Reduced segments (GL406) |
| Unit Price (qty 1) | $9.12 (as of 2026-09-30) | Lower (-10 to -15%) | Lower (-20 to -30%) | Lower (-20 to -30%) | Similar to E grade |
Key Differentiators
- Dual Partition Flash with ECC for live OTA updates (vs PIC24FJ256GL408-E/PT)
- Extended temperature grade for harsh environments (vs PIC24FJ512GL408-I/PT)
- Highest LCD segment count in GL4 family (vs PIC24FJ512GL406-I/PT)
Design Notes
Estimated: at VDD=3.3V and 32 MHz active mode, the PIC24FJ512GL408 typically draws ~15 mA. For battery-powered designs, use nanoWatt XLP Deep Sleep mode (under 1 uA) with RTC wake-up or external interrupt. Place a 10 uF bulk capacitor and 0.1 uF decoupling capacitor close to each VDD/VSS pin pair to suppress switching noise from the integrated USB transceiver. The USB VBUS pin is 5V tolerant and should include ESD protection diodes per USB 2.0 specification.
Route USB D+ and D- as a 90-ohm differential pair with matched length and continuous reference ground plane on the layer below. Keep crystal traces (OSC1/OSC2) short and surrounded by ground pour to minimize EMI. Place JTAG/ICSP header footprint accessible at board edge for programming and debug. For LCD applications, route segment and common lines away from switching power traces to prevent display artifacts.
The Dual Partition Flash feature requires careful firmware planning - the boot loader must correctly manage partition swaps via the NVMCON register. Do not exceed 100,000 erase/write cycles per flash row without wear-leveling. The 24-channel ADC requires proper AVdd decoupling (10 uF + 0.1 uF) and a quiet analog ground plane for accurate conversions. The internal USB regulator needs adequate bulk capacitance on the USB VBUS rail.
The TQFP-80 package has an estimated thermal resistance theta_JA of approximately 45 C/W on a standard 2-layer JEDEC test board. Estimated: at 15 mA active current and 3.3V, power dissipation is about 50 mW, resulting in a junction temperature rise of only ~2.25 C above ambient - well within the -40 to +125 C operating range. No external heatsink is required for normal operation. However, sustained USB data transfers and ADC sampling can increase core current by 20-30%.
Compliance Information
RoHS and REACH compliant per Microchip product page. The 'E' temperature grade meets -40 to +125 C operating range but is not AEC-Q100 qualified - for automotive applications, contact Microchip about PIC24FJ AEC-Q100 qualified variants.