PIC32MX775F512LT-80I/PF - 80MHz 512KB Flash MCU | Microchip
MPN: PIC32MX775F512LT-80I/PF ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.4 | $114.00 |
| 100 | $10.2 | $1,020.00 |
| 500 | $9.1 | $4,550.00 |
| 1,000 | $8.2 | $8,200.00 |
PIC32MX775F512LT-80I/PF Overview
A 32-bit microcontroller (MCU) is a single-chip processor that integrates CPU core, program memory, data memory, and peripherals. The PIC32 family uses the MIPS32 M4K core, which places it in the broader taxonomy of MIPS-based 32-bit microcontrollers -> microcontrollers (MCU) -> embedded processors -> semiconductors. Compared with 8-bit or 16-bit MCUs, 32-bit devices like the PIC32MX775 enable higher computational throughput, larger addressable memory, and richer peripheral sets, making them suitable for connected embedded systems.
Key features include 83 general-purpose I/O lines, five 16-bit timers/counters, two analog comparators, two UART modules, two SPI interfaces, two I2C buses, an analog-to-digital converter and a CTMU (Charge Time Measurement Unit). The integrated 10/100 Ethernet MAC and dual CAN 2.0B controllers give designers direct access to industrial and automotive networking without external PHY hardware. Industrial temperature range -40C to +85C supports harsh environment deployments.
Typical applications include industrial Ethernet gateways, CAN-based automation controllers, USB peripherals and embedded web servers. The wide peripheral mix makes the PIC32MX775 well-suited to designers consolidating multiple legacy 8/16-bit MCUs into one 32-bit platform while preserving pin-compatible footprints within the PIC32MX family.
When designing with this part, plan oscillator and decoupling layout early: place the 8 MHz primary crystal within 1 cm of the OSC1/OSC2 pins with short traces and guard ring, and add 0.1 uF + 10 uF decoupling near each VDD/VSS pin pair. Always reference the Microchip PIC32MX5XX/6XX/7XX family datasheet for configuration bit settings and peripheral pin mapping.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX775F512LT-80I/PF — 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 PIC32MX775F512LT-80I/PF (same form factor and footprint) — differing in Package, USB, ADC, CAN, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX775F512L-80I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX775F512LT-80V/PF
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX795F512L-80I/PF
✅ Drop-In✓ In Stock
$9.95 / Unit
View Datasheet →PIC32MX695F512L-80I/PF
✅ Drop-In✓ In Stock
$7.95 / Unit
View Datasheet →PIC32MX675F512LT-80I/PF
✅ Drop-In✓ In Stock
$6.05 / Unit
View Datasheet →PIC32MX775F512LT-80I/PF Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K |
| Core Bit Width | 32-bit |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| Data Memory (SRAM) | 64 KB |
| Package | 100-TQFP (14x14 mm) |
| Pin Count | 100 |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins (GPIO) | 83 |
| DMA Channels | 8 |
| Timers | 5 x 16-bit |
| Analog Comparators | 2 |
| UART | 2 |
| SPI | 2 |
| I2C | 2 |
| CAN | 2 x CAN 2.0B |
| USB | USB 2.0 Full-Speed |
| Ethernet MAC | 10/100 Mbps (RMII/MII) |
| Operating Temperature | -40C to +85C (Industrial) |
| RoHS Status | Compliant |
PIC32MX775F512LT-80I/PF 100-tqfp (14x14 mm) Pin Configuration Guide
Pin configuration for PIC32MX775F512LT-80I/PF (100-tqfp (14x14 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for PIC32MX775F512LT-80I/PF.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX775F512LT-80I/PF is suitable for 6 applications: Industrial Ethernet Gateway, CAN-Based Automation Controller, USB Peripherals and HID Devices, Embedded Web Server / IoT Edge Node, Automotive Test and Diagnostic Equipment, Multi-Protocol Industrial Display Controller.
Industrial Ethernet Gateway
The PIC32MX775F512LT-80I/PF's integrated 10/100 Ethernet MAC plus dual CAN 2.0B controllers and 64 KB SRAM make it ideal for protocol-conversion gateways that bridge Modbus/TCP fieldbuses and CAN-based machine networks. With an external LAN8720A RMII PHY and MCP2551 CAN transceiver, designers implement a single-chip gateway handling TCP/IP sockets, CANopen or DeviceNet stacks, and 80 MHz MIPS throughput sufficient for 10 ms polling loops. The 512 KB Flash hosts the MPLAB Harmony TCP/IP stack plus application logic without external memory. Compared with a host MCU plus discrete Ethernet chip, this PIC32 part reduces BOM by 30-40% and PCB area by roughly half while keeping deterministic interrupt latency via 8-channel DMA.
Recommended
CAN-Based Automation Controller
Two independent CAN 2.0B controllers, 8-channel DMA, and five 16-bit timers position the PIC32MX775F512LT-80I/PF as the central node in CANopen or DeviceNet automation cells. The 80 MHz core and 64 KB SRAM handle CAN message filtering, real-time scheduling, and PID control loops for up to two CAN buses simultaneously, while 83 GPIOs drive discrete I/O for sensors and actuators. Industrial -40C to +85C operation tolerates cabinet and outdoor enclosures. The PIC32MX775F512LT-80I/PF is preferred over PIC32MX664 variants when two CAN buses are required; designers may pair it with MCP2551 transceivers and 120-ohm bus termination for robust industrial deployment.
Recommended
USB Peripherals and HID Devices
The PIC32MX775F512LT-80I/PF integrates a USB 2.0 Full-Speed (12 Mbps) controller with on-chip PHY, 64 KB SRAM and 83 GPIOs - ideal for USB HID peripherals such as industrial keypads, custom instrumentation controllers, and data-acquisition front-ends. The full-speed USB plus 512 KB Flash support Microchip's USB stack and CDC/HID class drivers without external components; 8 DMA channels offload bulk transfers from the CPU, leaving headroom for protocol parsing. Compared to discrete USB-interface MCUs, the integrated solution eliminates external PHY and reduces PCB cost. For USB High-Speed (480 Mbps) requirements, choose the pin-compatible PIC32MX795F512L-80I/PF instead.
Recommended
Embedded Web Server / IoT Edge Node
Combining the 10/100 Ethernet MAC, 512 KB Flash, 64 KB SRAM, and 80 MHz MIPS32 M4K core, the PIC32MX775F512LT-80I/PF runs the MPLAB Harmony TCP/IP stack plus an embedded HTTP/MQTT server for industrial IoT edge nodes. The 8-channel DMA accelerates packet copy operations, while 83 GPIOs handle local sensors, relays, and status LEDs. Industrial -40C to +85C operation tolerates factory-floor deployment. Compared with Wi-Fi IoT modules that require subscription stacks, the wired Ethernet approach provides deterministic latency and zero cloud dependency - particularly valuable for SCADA gateways and remote telemetry units.
Recommended
Automotive Test and Diagnostic Equipment
Two CAN 2.0B interfaces, USB Full-Speed, and -40C to +85C industrial temperature operation make the PIC32MX775F512LT-80I/PF well suited to OBD-II scan tools, ECU calibration benches, and automotive production-line testers. The 80 MHz core runs UDS (Unified Diagnostic Services) and KWP118 compatibility shims on the same silicon, while 64 KB SRAM buffers live data streams and 512 KB Flash stores calibration tables. Pairing this PIC32 part with MCP2551 CAN transceivers and MCP1802 LDO yields a compact bench tool; designers needing higher temperature tolerance (105C) should migrate to the V-grade PIC32MX775F512LT-80V/PF in the same 100-TQFP footprint.
Recommended
Multi-Protocol Industrial Display Controller
The PIC32MX775F512LT-80I/PF drives TFT LCD panels up to QVGA via its parallel master port and PMP peripheral while bridging CAN, UART, and Ethernet inputs. The 83 GPIOs provide abundant parallel interface bandwidth without bit-banging, and 64 KB SRAM holds frame buffers for small color displays. Industrial temperature and 80 MHz MIPS throughput ensure smooth UI rendering alongside real-time CAN updates from a vehicle or machine. Compared with an MCU plus external graphics controller, the integrated PMP peripheral reduces BOM cost and PCB area, and MPLAB Harmony's graphics library accelerates UI prototyping.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX775F512LT-80I/PF — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX775F512L-80I/PF | PIC32MX775F512LT-80V/PF | PIC32MX795F512L-80I/PF | PIC32MX695F512L-80I/PF | PIC32MX675F512LT-80I/PF |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Program Flash | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 128 KB | 128 KB | 64 KB |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 High-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed |
| CAN | 2 x CAN 2.0B | 2 x CAN 2.0B | 2 x CAN 2.0B | 2 x CAN 2.0B | 1 x CAN 2.0B | 2 x CAN 2.0B |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +105C (Extended V) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Ethernet MAC | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
Key Differentiators
- Dual CAN 2.0B controllers in same TQFP-100 (vs PIC32MX695F512L-80I/PF)
- Full-speed USB on-chip PHY integrated (vs PIC32MX575F512LT-80I/PF)
- Industrial temperature V-grade option in same footprint (vs PIC32MX775F512LT-80I/PF)
Design Notes
Place the primary 8 MHz crystal within 1 cm of the OSC1/OSC2 pins with short symmetric traces and a grounded guard ring to minimize EMI coupling. Per the PIC32MX5XX/6XX/7XX family datasheet, long oscillator traces increase startup time and jitter, degrading USB and CAN timing margins.
Place a 0.1 uF ceramic decoupling capacitor within 3 mm of every VDD/AVDD pin and add a bulk 10 uF tantalum or ceramic near the package. The PIC32MX775F512LT-80I/PF draws peak currents up to 70 mA at full CPU and peripheral load; insufficient decoupling causes VDD droop and brown-out resets.
Configure the JTAG/SWD debugger pins as GPIO only after disabling the debug interface in the device configuration bits - otherwise the debugger remains active and steals two GPIOs. Always program the configuration bits last in production to prevent JTAG lockout.
Route USB DP/DM as a 90-ohm differential pair with length matching within 2 mm; do not route over power-plane splits. The PIC32MX775F512LT-80I/PF integrates the USB Full-Speed PHY but still requires the 90-ohm external termination per the USB 2.0 specification for signal compliance.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified; for AEC-Q100 automotive applications use the PIC32MX775F512L-E/PF or contact Microchip for automotive-grade variants. Conflict-minerals compliant per Microchip supplier declarations.
