PIC24FJ512GL406-E/PT - 512KB Flash 16-bit USB LCD MCU | Microchip
MPN: PIC24FJ512GL406-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.4 | $6.40 |
| 10 | $5.85 | $58.50 |
| 100 | $5.25 | $525.00 |
| 500 | $4.72 | $2,360.00 |
| 1,000 | $4.2 | $4,200.00 |
PIC24FJ512GL406-E/PT Overview
An MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), working memory (RAM), and a rich set of on-chip peripherals. The 16-bit PIC24F core sits in the hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> PIC24F family -> GL4 sub-family. Microcontrollers dominate embedded design because they consolidate computation, control, and connectivity into one low-power, deterministic device.
Key features of this part include 512 KB of dual-partition Flash that supports real-time Over-The-Air (OTA) firmware updates and EEPROM emulation, a segmented LCD driver with charge pump, USB 2.0 full-speed (12 Mbps) with on-chip transceiver, and Core Independent Peripherals (CIPs) such as Configurable Logic Cells (CLC), Multiple Capture/Compare/PWM, and a 32-bit Real-Time Clock. Five 16-bit timers/counters, a 12-bit A/D converter with up to 32 channels, and multiple serial interfaces (UART, SPI, I2C) round out the peripheral set.
Architecturally, the PIC24FJ GL4 devices use a 16-bit modified Harvard core with a 24-bit instruction word, supporting C-compiled code with deterministic interrupt response. The dual-partition Flash and live-update firmware make this family tailored for connected, field-upgradable products. The integrated LCD controller with on-chip charge pump eliminates external bias components.
Typical applications include low-power IoT sensor nodes with USB diagnostics, human-machine interface (HMI) panels with segmented LCDs, USB-connected medical monitors, industrial control panels, and remote sensor endpoints requiring OTA firmware updates. The wide temperature range and rich analog make it well suited to factory automation and battery-powered field instruments.
When designing with this device, plan the dual-partition Flash layout before firmware development so the bootloader and golden image boundaries are reserved. Decouple AVDD/AVSS separately from VDDCORE, and use the on-chip charge pump only after confirming the LCD glass load and segment count are within the controller's drive capability.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design considerations not typically consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC24FJ512GL406-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 PIC24FJ512GL406-E/PT (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, USB, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ256GL406-E/PT
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View Datasheet →PIC24FJ512GL406-I/PT
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View Datasheet →PIC24FJ256GU406-I/PT
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View Datasheet →PIC24FJ128GU406-I/PT
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View Datasheet →PIC24FJ512GB610-E/PT
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View Datasheet →PIC24FJ512GL406-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit PIC24F (modified Harvard) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Flash | 512 KB (dual partition, ECC) |
| SRAM | 32 KB |
| USB | USB 2.0 Full-Speed (12 Mbps), on-chip transceiver |
| LCD Controller | Integrated with charge pump, segmented LCD |
| ADC | 12-bit, up to 32 channels |
| Timers | 5 x 16-bit / 32-bit timer pairs |
| Communication Interfaces | UART, SPI, I2C, USB |
| Core Independent Peripherals (CIPs) | CLC, MCCP, RTCC, DMA |
| Operating Voltage | 2.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E suffix, extended industrial) |
| Package | 64-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC24FJ512GL406-E/PT Pin Configuration
| Pin 1 | RC0 — GPIO / general purpose I/O |
| Pin 2 | RC1 — GPIO / general purpose I/O |
| Pin 3 | RC2 — GPIO / general purpose I/O |
| Pin 4 | RC3 — GPIO / general purpose I/O |
| Pin 5 | RC4 — GPIO / general purpose I/O |
| Pin 6 | RC5 — GPIO / general purpose I/O |
| Pin 7 | RC6 — GPIO / general purpose I/O |
| Pin 8 | RC7 — GPIO / general purpose I/O |
| Pin 9 | RC8 — GPIO / general purpose I/O |
| Pin 10 | RC9 — GPIO / general purpose I/O |
| Pin 11 | VSS — Ground reference |
| Pin 12 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pin 13 | RA0 — GPIO / analog input |
| Pin 14 | RA1 — GPIO / analog input |
| Pin 15 | RA2 — GPIO / analog input |
| Pin 16 | RA3 — GPIO / analog input |
| Pin 17 | RA4 — GPIO / analog input |
| Pin 18 | RA5 — GPIO / analog input |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pin 21 | RB0 — GPIO / PGED1 (programming) |
| Pin 22 | RB1 — GPIO / PGEC1 (programming) |
| Pin 23 | RB2 — GPIO / general purpose I/O |
| Pin 24 | RB3 — GPIO / general purpose I/O |
| Pin 25 | RB4 — GPIO / general purpose I/O |
| Pin 26 | RB5 — GPIO / general purpose I/O |
| Pin 27 | RB6 — GPIO / general purpose I/O |
| Pin 28 | RB7 — GPIO / general purpose I/O |
| Pin 29 | RB8 — GPIO / general purpose I/O |
| Pin 30 | RB9 — GPIO / general purpose I/O |
| Pin 31 | RB10 — GPIO / general purpose I/O |
| Pin 32 | RB11 — GPIO / general purpose I/O |
| Pin 33 | RB12 — GPIO / general purpose I/O |
| Pin 34 | RB13 — GPIO / general purpose I/O |
| Pin 35 | RB14 — GPIO / general purpose I/O |
| Pin 36 | RB15 — GPIO / general purpose I/O |
| Pin 37 | VSS — Ground reference |
| Pin 38 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pin 39 | RD0 — GPIO / general purpose I/O |
| Pin 40 | RD1 — GPIO / general purpose I/O |
| Pin 41 | RD2 — GPIO / general purpose I/O |
| Pin 42 | RD3 — GPIO / general purpose I/O |
| Pin 43 | RD4 — GPIO / general purpose I/O |
| Pin 44 | RD5 — GPIO / general purpose I/O |
| Pin 45 | RD6 — GPIO / general purpose I/O |
| Pin 46 | RD7 — GPIO / general purpose I/O |
| Pin 47 | RD8 — GPIO / general purpose I/O |
| Pin 48 | RD9 — GPIO / general purpose I/O |
| Pin 49 | RD10 — GPIO / general purpose I/O |
| Pin 50 | RD11 — GPIO / general purpose I/O |
| Pin 51 | RD12 — GPIO / general purpose I/O |
| Pin 52 | RD13 — GPIO / general purpose I/O |
| Pin 53 | RD14 — GPIO / general purpose I/O |
| Pin 54 | RD15 — GPIO / general purpose I/O |
| Pin 55 | VSS — Ground reference |
| Pin 56 | VDD — Positive supply (2.0 V to 3.6 V) |
| Pin 57 | RE0 — GPIO / general purpose I/O |
| Pin 58 | RE1 — GPIO / general purpose I/O |
| Pin 59 | RE2 — GPIO / general purpose I/O |
| Pin 60 | RE3 — GPIO / general purpose I/O |
| Pin 61 | RE4 — GPIO / general purpose I/O |
| Pin 62 | RE5 — GPIO / general purpose I/O |
| Pin 63 | RE6 — GPIO / general purpose I/O |
| Pin 64 | RE7 — GPIO / general purpose I/O |
Typical Applications
PIC24FJ512GL406-E/PT is suitable for 7 applications: USB IoT Sensor Node with OTA, Industrial HMI Panel with Segmented LCD, Battery-Powered Medical Monitor with USB Diagnostics, Remote Sensor Endpoint with OTA, USB Barcode / Access Control Terminal, Automotive Aftermarket Telematics Dongle, Consumer Smart-Home Control Panel.
USB IoT Sensor Node with OTA
The PIC24FJ512GL406-E/PT fits USB-connected IoT sensor nodes because its 512 KB dual-partition ECC Flash supports real-time Over-The-Air firmware updates while the application runs from the inactive partition. Its USB 2.0 Full-Speed controller with on-chip transceiver eliminates the external PHY, and the 32 KB SRAM handles USB descriptors plus sensor buffering. The integrated segmented LCD with charge pump lets the node display readings without an external driver IC. At 16 MIPS with eXtreme Low-Power modes, it balances throughput for protocol stacks (MQTT-SN, USB CDC) and battery endurance for field deployment. According to the Microchip datasheet, the dual-partition layout guarantees the bootloader is never overwritten, enabling failsafe OTA.
Recommended
Industrial HMI Panel with Segmented LCD
The PIC24FJ512GL406-E/PT is a strong fit for industrial HMI panels because its integrated LCD controller with on-chip charge pump drives large segmented glass directly, eliminating external bias resistors. Its 512 KB Flash holds multilingual menu trees, and the 12-bit ADC up to 32 channels reads potentiometers and analog sensors behind the panel. The -40C to +125C extended industrial temperature range supports factory-floor enclosures. According to the Microchip datasheet, the CIPs (CLC, MCCP) implement custom timing and control logic without CPU intervention, freeing the core for menu rendering. Combined with USB for firmware loading, the device replaces multiple discrete components on the HMI board.
Recommended
Battery-Powered Medical Monitor with USB Diagnostics
The PIC24FJ512GL406-E/PT fits portable medical monitors because its eXtreme Low-Power sleep currents extend battery life between measurements, while USB Full-Speed enables fast clinic-side data download. The 12-bit ADC delivers accurate readings for vital-sign analog front-ends, and the segmented LCD displays measurements without a backlight-consuming graphics controller. According to the Microchip datasheet, the RTCC and DMA offload scheduling and data movement, letting the CPU remain in sleep most of the time. The extended -40C to +125C range also supports sterilization environments where applicable.
Recommended
Remote Sensor Endpoint with OTA
The PIC24FJ512GL406-E/PT is well suited to remote sensor endpoints because the dual-partition Flash enables in-field OTA without bricking the device, and the USB port allows service technicians to perform a wired diagnostic or fast firmware recovery when wireless links fail. Its CIPs implement sensor sampling, threshold detection, and wake-on-event without core intervention, dramatically reducing average current. According to the Microchip datasheet, the 32 KB SRAM is sufficient for protocol stacks and message buffering, while the segmented LCD can show local status in maintenance mode.
Recommended
USB Barcode / Access Control Terminal
The PIC24FJ512GL406-E/PT fits USB-attached barcode scanners and access-control terminals because the integrated USB Full-Speed controller presents as a HID or CDC device with no external PHY, and the 32 KB SRAM accommodates descriptor tables and protocol state machines. The segmented LCD with charge pump displays user prompts directly on the terminal, while 12-bit ADC channels read auxiliary analog sensors. According to the Microchip datasheet, the CLC peripherals implement custom decoding logic on GPIO without external gates, reducing BOM. The -40C to +125C temperature range supports outdoor kiosks.
Recommended
Automotive Aftermarket Telematics Dongle
The PIC24FJ512GL406-E/PT is applicable to aftermarket automotive telematics dongles because USB enables OBD-II adapter firmware updates from a laptop, while the segmented LCD shows diagnostic codes locally. Its 12-bit ADC reads vehicle analog sensors and the dual-partition Flash ensures the bootloader is preserved during OTA. According to the Microchip datasheet, the -40C to +125C temperature range tolerates cabin and under-dash environments, and the low-power sleep modes suit always-on vehicles. Note that AEC-Q100 qualification is not explicitly claimed for the GL406 family; choose PIC24FJxxxQ automotive parts for OEM use.
Recommended
Consumer Smart-Home Control Panel
The PIC24FJ512GL406-E/PT fits wall-mounted smart-home control panels because its segmented LCD with charge pump gives always-on status visibility without a power-hungry TFT, and USB enables easy provisioning from a phone or laptop during installation. The 512 KB Flash stores Zigbee / Matter-style commissioning flows and multilingual UI strings, while the 32 KB SRAM handles radio co-processor buffering. According to the Microchip datasheet, the 12-bit ADC reads touch or rotary inputs and the CIPs implement custom gesture decoding without external logic. The wide temperature range supports indoor closet and garage installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ512GL406-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ256GL406-E/PT | PIC24FJ512GL408-E/PT | PIC24FJ256GU406-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10 mm) | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same | TQFP-64 (10x10 mm) - same |
| Flash Memory | 512 KB | 256 KB | 512 KB | 256 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | Full-Speed USB + PHY | Full-Speed USB + PHY | Full-Speed USB + PHY | Full-Speed USB + PHY |
| LCD Controller | Yes (with charge pump) | Yes (with charge pump) | Yes (extended segments) | No (graphics only) |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) |
| Dual-Partition Flash | Yes | Yes | Yes | Yes |
Key Differentiators
- Dual-partition Flash with safe OTA (vs PIC24FJ256GL406-E/PT)
- Integrated segmented LCD with charge pump (vs PIC24FJ256GU406-I/PT)
- Extended industrial temperature range (vs PIC24FJ256GL406-I/PT)
Design Notes
Decouple VDD/VSS pairs locally with 100 nF ceramic capacitors placed within 5 mm of each supply pin pair; the PIC24FJ512GL406-E/PT datasheet recommends at least 1 uF bulk capacitance near the core supply rail. Separate AVDD/AVSS from digital VDD/VSS with their own filter network when using the 12-bit ADC to avoid digital switching noise coupling into analog readings.
Route the USB D+/D- pair as a 90-ohm differential with matched length, keep the pair over a continuous ground plane, and place the 15 kB pull-down on D- within 4 mm of the IC pin. Avoid routing signal traces across the USB differential pair to minimize crosstalk and EMI. The exposed thermal pad (if present in this TQFP variant) should be soldered to a continuous copper pour stitched with vias for thermal relief.
Configure the dual-partition Flash boot mode and golden image boundaries before locking the configuration bits - once locked, changing partition sizes requires a debugger. Verify the segmented LCD glass load against the on-chip charge-pump current limit (refer to the Electrical Characteristics section of the datasheet) and add external reservoir capacitors if driving more than the rated segment count.
Place the 32.768 kHz crystal close to SOSCO/SOSCI pins with a grounded guard ring to minimize noise coupling into the RTCC and low-power sleep currents. Keep high-frequency digital traces away from the crystal traces and from any analog input pins used by the ADC. For USB-OTG applications, follow the Microchip USB layout checklist in the application note section of the datasheet.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 not explicitly claimed for the GL4 family - select PIC24FJxxxQ parts for OEM automotive qualification. MSL Level 3 per JEDEC J-STD-020.
