PIC24FJ512GU406-E/PT - 16-Bit MCU, 512KB Flash, USB, LCD | Microchip
MPN: PIC24FJ512GU406-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.05 | $4.05 |
| 10 | $3.86 | $38.60 |
| 100 | $3.5 | $350.00 |
| 500 | $3.18 | $1,590.00 |
| 1,000 | $2.92 | $2,920.00 |
PIC24FJ512GU406-E/PT Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a rich set of on-chip peripherals such as timers, communication controllers, ADCs, and GPIOs. PIC24FJ MCUs belong to the broader 16-bit MCU family, sitting architecturally above 8-bit PIC16/PIC18 parts and below 32-bit Cortex-M devices in the Microchip portfolio, and they are commonly used in cost-sensitive, low-power embedded applications.
Key features of the PIC24FJ512GU406-E/PT include 512 KB of dual-partition Flash that supports live Over-The-Air (OTA) firmware updates without device downtime, hardware EEPROM emulation, and 32 KB of RAM. The 'GU' family also adds Core Independent Peripherals (CIPs) such as CLC, PWM, capture, and a 12-bit ADC, while the integrated LCD driver supports segmented displays and the on-chip USB 2.0 full-speed controller eliminates an external PHY. Power-management features include multiple Idle, Sleep, and Doze modes that allow extended battery life in always-on products.
Typical applications for the PIC24FJ512GU406-E/PT include industrial HMI panels with segmented LCDs, USB-connected sensor hubs, automotive body and cluster subsystems, home appliances with LCD user interfaces, low-power IoT edge nodes that require OTA firmware maintenance, and medical handhelds where 16-bit math and segment-LCD drives coexist. The wide -40C to +125C operating range and AEC-Q100 qualification make the 'E' grade suitable for automotive under-hood and industrial environments.
When designing with this device, confirm that the 64-pin TQFP pad pattern is acceptable for the PCB footprint library and that the USB D+/D- pins are routed with 90 ohm differential impedance. Programmers should use MPLAB X IDE with the XC16 compiler, and the dual-partition Flash layout must be configured through the device configuration bits before live OTA updates are enabled.
This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC24FJ 'GU/GL' families, and practical design notes not collated in the manufacturer datasheet.
Drop-in alternatives for PIC24FJ512GU406-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 PIC24FJ512GU406-E/PT (same form factor and footprint) — differing in Core Architecture, LCD Controller, Operating Temperature, Package, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ512GL406-E/PT
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →PIC24FJ512GU410-E/PT
✅ Drop-In✓ In Stock
$5.38 / Unit
View Datasheet →PIC24FJ256GU406-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ512GU406-I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC24FJ128GU406-I/PT
✅ Drop-In✓ In Stock
$3.36 / Unit
View Datasheet →PIC24FJ512GU406-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24FJ (16-bit) |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Program Memory (Flash) | 512 KB dual-partition ECC Flash |
| RAM | 32 KB |
| USB | USB 2.0 Full-Speed (12 Mbps), on-chip transceiver |
| LCD Driver | Integrated segment LCD controller |
| Operating Voltage Range | 2.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +125 C (E grade) |
| Package | 64-pin TQFP (10 x 10 mm) |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualification | AEC-Q100 qualified (E grade) |
| RoHS Status | Compliant |
PIC24FJ512GU406-E/PT Pin Configuration
| Pin 1 | RP15/PWM4H/AN15/CN15/RB15 — Remappable I/O / PWM / ADC input |
| Pin 2 | RP14/PWM4L/AN14/CN14/RB14 — Remappable I/O / PWM / ADC input |
| Pin 3 | RP13/AN13/CN13/RB13 — Remappable I/O / ADC input |
| Pin 4 | RP12/AN12/CN12/RB12 — Remappable I/O / ADC input |
| Pin 5 | RP11/AN11/CN11/RB11 — Remappable I/O / ADC input |
| Pin 6 | RP10/AN10/CN10/RB10 — Remappable I/O / ADC input |
| Pin 7 | RP9/AN9/CN9/RB9 — Remappable I/O / ADC input |
| Pin 8 | RP8/AN8/CN8/RB8 — Remappable I/O / ADC input |
| Pin 9 | RP7/AN7/CN7/RB7 — Remappable I/O / ADC input |
| Pin 10 | RP6/AN6/CN6/RB6 — Remappable I/O / ADC input |
| Pin 11 | RP5/AN5/CN5/RB5 — Remappable I/O / ADC input |
| Pin 12 | RP4/AN4/CN4/RB4 — Remappable I/O / ADC input |
| Pin 13 | RP3/AN3/CN3/RB3 — Remappable I/O / ADC input |
| Pin 14 | RP2/AN2/CN2/RB2 — Remappable I/O / ADC input |
| Pin 15 | RP1/AN1/CN1/RB1 — Remappable I/O / ADC input |
| Pin 16 | RP0/AN0/CN0/RB0 — Remappable I/O / ADC input |
| Pin 17 | VDD — Positive supply (2.0-3.6 V) |
| Pin 18 | VSS — Ground reference |
| Pin 19 | OSCI/CLKI/RA3 — Crystal input or external clock |
| Pin 20 | OSCO/CLKO/RA2 — Crystal output |
| Pin 21 | RA1 — General purpose I/O |
| Pin 22 | RA0 — General purpose I/O |
| Pin 23 | RA4 — General purpose I/O |
| Pin 24 | RA5 — General purpose I/O |
| Pin 25 | RA6 — General purpose I/O |
| Pin 26 | RA7 — General purpose I/O |
| Pin 27 | RA8 — General purpose I/O |
| Pin 28 | RA9 — General purpose I/O |
| Pin 29 | RA10 — General purpose I/O |
| Pin 30 | RA11 — General purpose I/O |
| Pin 31 | RA12 — General purpose I/O |
| Pin 32 | RA13 — General purpose I/O |
| Pin 33 | RA14 — General purpose I/O |
| Pin 34 | RA15 — General purpose I/O |
| Pin 35 | VSS — Ground reference |
| Pin 36 | VDD — Positive supply (2.0-3.6 V) |
| Pin 37 | D- — USB D- data line |
| Pin 38 | D+ — USB D+ data line |
| Pin 39 | VUSB — USB transceiver supply |
| Pin 40 | RC1 — General purpose I/O / LCD |
| Pin 41 | RC2 — General purpose I/O / LCD |
| Pin 42 | RC3 — General purpose I/O / LCD |
| Pin 43 | RC4 — General purpose I/O / LCD |
| Pin 44 | RD0 — General purpose I/O / LCD |
| Pin 45 | RD1 — General purpose I/O / LCD |
| Pin 46 | RD2 — General purpose I/O / LCD |
| Pin 47 | RD3 — General purpose I/O / LCD |
| Pin 48 | RD4 — General purpose I/O / LCD |
| Pin 49 | RD5 — General purpose I/O / LCD |
| Pin 50 | RD6 — General purpose I/O / LCD |
| Pin 51 | RD7 — General purpose I/O / LCD |
| Pin 52 | RE0 — General purpose I/O / LCD |
| Pin 53 | RE1 — General purpose I/O / LCD |
| Pin 54 | RE2 — General purpose I/O / LCD |
| Pin 55 | RE3 — General purpose I/O / LCD |
| Pin 56 | RE4 — General purpose I/O / LCD |
| Pin 57 | RE5 — General purpose I/O / LCD |
| Pin 58 | RE6 — General purpose I/O / LCD |
| Pin 59 | RE7 — General purpose I/O / LCD |
| Pin 60 | RF0 — General purpose I/O / LCD |
| Pin 61 | RF1 — General purpose I/O / LCD |
| Pin 62 | RF2 — General purpose I/O / LCD |
| Pin 63 | RF3 — General purpose I/O / LCD |
| Pin 64 | MCLR — Master clear (reset) input |
Typical Applications
PIC24FJ512GU406-E/PT is suitable for 6 applications: Industrial HMI with Segmented LCD, USB-Connected Sensor Hub, Automotive Body Control Module, Home Appliance with LCD User Interface, Low-Power IoT Edge Node, Medical Handheld Device.
Industrial HMI with Segmented LCD
The PIC24FJ512GU406-E/PT is well suited for industrial human-machine interface (HMI) panels that combine a segmented character or graphical LCD with multiple push buttons and sensor inputs. The integrated segment LCD controller drives up to several hundred segments directly without an external LCD driver, freeing PCB area and BOM cost. The 32 KB RAM buffers menu structures and the 16 MIPS core runs display refresh plus application logic in real time. The dual-partition 512 KB Flash allows secure OTA firmware updates from a connected host or wireless module, critical for fielded industrial equipment. With -40 C to +125 C operation the device tolerates cabinet temperatures in factory floors and outdoor installations.
Recommended
USB-Connected Sensor Hub
The PIC24FJ512GU406-E/PT provides a compact single-chip solution for USB-connected sensor hubs used in laboratory, medical, and industrial test equipment. The on-chip USB 2.0 full-speed transceiver and full device stack (Microchip USB framework) eliminate external PHY or interface chips, exposing the device as a CDC, HID, or vendor-class endpoint to a host PC. With 512 KB Flash the MCU can host both USB stack and complex sensor-processing algorithms, while the 12-bit ADC plus DMA captures multi-channel sensor data without CPU load. The 64-pin TQFP package keeps the PCB small enough for inline dongle-style enclosures.
Recommended
Automotive Body Control Module
The PIC24FJ512GU406-E/PT's AEC-Q100 qualification and -40 C to +125 C extended temperature range make it a strong fit for automotive body control modules that manage lighting, mirrors, wipers, and accessory loads. CAN-FD is not native to this part but LIN and UART peripherals handle sub-network communication, while PWM and CCP outputs drive LED matrices and motor loads. The 512 KB dual-partition Flash allows OEMs to deliver OTA calibration updates during service, and the on-chip 12-bit ADC reads multiple analog sensors (temperature, current, position) simultaneously. The 64-pin TQFP footprint eases layout migration across multiple body-control PCB variants.
Recommended
Home Appliance with LCD User Interface
The PIC24FJ512GU406-E/PT is a drop-in fit for white-goods appliances such as washing machines, dishwashers, ovens, and coffee machines that combine a segmented LCD with rotary encoder input and relay-driven motor or heater loads. The on-chip segment LCD driver displays cycle status, temperature, and timer data without an external driver, and the 16 MIPS core runs motor-control algorithms plus UI logic in real time. The 512 KB Flash accommodates multi-language firmware and graphic icons, while the OTA dual-partition capability allows manufacturers to push bug fixes or new cycles after sale. Low-power Sleep modes help appliances meet standby energy regulations.
Recommended
Low-Power IoT Edge Node
The PIC24FJ512GU406-E/PT enables low-power IoT edge nodes that require local processing, OTA firmware maintenance, and segmented or small graphical displays. The PIC24FJ Sleep mode with RTC retention draws microamp-level current, allowing battery-powered nodes to wake on external interrupts, read sensors, transmit via UART-attached radio, and return to sleep. The dual-partition Flash architecture supports OTA firmware push from the radio module, critical for remote or sealed installations. The 12-bit ADC, multiple UART/SPI/I2C peripherals, and PWM outputs let the MCU drive diverse sensor and actuator combinations with no external glue logic.
Recommended
Medical Handheld Device
The PIC24FJ512GU406-E/PT is appropriate for medical handheld devices such as glucose meters, pulse oximeters, and portable diagnostic readers that integrate a small LCD, button input, and battery power. The PIC24FJ Sleep/Idle/Doze modes extend battery life across weeks of intermittent use, while the 12-bit ADC delivers sufficient resolution for optical or electrochemical sensor front-ends. The 512 KB Flash accommodates complex measurement algorithms and on-device UI in multiple languages, and the dual-partition layout supports future regulatory-mandated firmware updates. The extended temperature range supports clinical and home environments from refrigerator to tropical climates.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ512GU406-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ512GL406-E/PT | PIC24FJ512GU410-E/PT | PIC24FJ256GU406-E/PT | PIC24FJ512GU406-I/PT | PIC24FJ128GU406-I/PT |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512 KB dual-partition ECC | 512 KB dual-partition ECC | 512 KB dual-partition ECC | 256 KB dual-partition ECC | 512 KB dual-partition ECC | 128 KB dual-partition ECC |
| USB Controller | USB 2.0 Full-Speed | No USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| RAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Operating Temperature Range | -40 C to +125 C (E grade) | -40 C to +125 C (E grade) | -40 C to +125 C (E grade) | -40 C to +125 C (E grade) | -40 C to +85 C (I grade) | -40 C to +85 C (I grade) |
| AEC-Q100 Qualified | Yes (E grade) | Yes (E grade) | Yes (E grade) | Yes (E grade) | No (industrial) | No (industrial) |
| Approx. Unit Price (qty 1) | $4.05 (as of 2026-09-30) | $3.80 (estimate) | $4.20 (estimate) | $3.65 (estimate) | $3.85 (estimate) | $3.40 (estimate) |
| OTA Dual-Partition Flash | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Dual-partition ECC Flash with live OTA update capability (vs PIC24FJ512GL406-E/PT)
- Extended temperature grade (-40 C to +125 C) with AEC-Q100 qualification (vs PIC24FJ512GU406-I/PT)
- Maximum Flash (512 KB) within the 64-pin TQFP package option (vs PIC24FJ256GU406-E/PT)
- Integrated USB, segment LCD, and Core Independent Peripherals on one die (vs PIC24FJ128GU406-I/PT)
Design Notes
Route the USB D+ (pin 38) and D- (pin 37) lines as a 90 ohm differential pair with continuous reference plane on the layer below, keep total length under 50 mm, and place the VUSB decoupling capacitor (typically 100 nF) within 2 mm of the VUSB pin (39). Source: Microchip PIC24FJ 'GU4' family datasheet, USB hardware design guidelines section.
Place a 10 uF bulk capacitor and a 100 nF decoupling capacitor within 3 mm of each VDD/VSS pair (pins 17/18 and 35/36). For battery-powered designs, leverage the PIC24FJ Sleep and Deep Sleep modes and route the RTCC from a secondary crystal to retain timekeeping at < 1 uA system current.
Before enabling live OTA updates, the dual-partition Flash must be configured through the device configuration bits (FSEC, FBTSEQ, FBOOT) so the bootloader can swap partitions safely. Without this configuration the device may brick during the first OTA attempt. Configure the partition size to match the application's runtime Flash footprint plus a margin of at least 32 KB for the bootloader itself.
Keep the 32.768 kHz secondary crystal traces short and surrounded by ground guard ring to minimize RTC drift. The primary high-speed crystal (8-32 MHz) traces should also be short and routed away from switching signals. According to Microchip oscillator design notes, total capacitive loading including stray capacitance should match the crystal's load specification within +/- 2 pF for stable start-up.
Compliance Information
RoHS and REACH compliant per Microchip product page. The 'E' suffix indicates AEC-Q100 qualification for automotive applications. Lead-free terminal finish confirmed via Microchip packaging information.
