PIC32MX575F256H-80I/MR
PIC32MX575F256H-80I/MR - 32-bit MCU 256KB Flash 80MHz 64-VQFN | Microchip
The Microchip Technology PIC32MX575F256H-80I/MR is a 32-bit microcontroller built on the MIPS32 M4K core, running up to 80 MHz (105 DMIPS) with 256 KB of program Flash and 64 KB of SRAM, housed in a 64-pin VQFN (MR) 9x9 mm package with exposed thermal pad. It integrates USB 2.0 On-The-Go with on-chip PHY, a CAN 2.0B module, 16-bit Parallel Master Port, 10-bit ADC, and dedicated DMA for USB OTG, targeting embedded designs that need rich connectivity in a single chip. The -80I suffix denotes the 80 MHz speed grade and the -40C to +85C industrial temperature range, while the /MR suffix marks the 64-VQFN 9x9 mm lead-free package.
A 32-bit PIC32 microcontroller is a member of the MIPS-based MCU family that occupies the high-performance tier of Microchip's product hierarchy: PIC10/12/16 -> PIC24/dsPIC -> PIC32 -> Cortex-M class (competing). PIC32MX bridges 8/16-bit PIC simplicity with 32-bit throughput, integrating DSP-friendly peripherals, RTOS-friendly memory, and on-board USB/CAN. Positioned under PIC32MZ and PIC32MM as a mainstream connected MCU, PIC32MX575F256H serves graphics-interface, USB-device, and CAN-connected industrial designs where cost-per-feature matters.
Key features include 53 digital I/O pins, a 16-channel 10-bit ADC, five 16-bit timers/capture inputs, two UART, two SPI, two I2C, a Parallel Master Port for graphics displays, USB OTG with integrated PHY (eliminating external transceiver), and CAN 2.0B with 1024-message buffers. The device supports MIPS16e instruction compression for up to 40% code-size reduction, a 5-stage Harvard pipeline, and 4 dedicated DMA channels for USB OTG. Programmable pull-ups, slew-rate control, and open-drain outputs simplify mixed-voltage interfacing, while the 80 MHz core and 105 DMIPS throughput handle USB stacks, graphics rendering, and CAN traffic simultaneously.
Typical applications include USB human-interface devices, CAN-connected industrial sensors, low-cost graphics display controllers using the PMP, point-of-sale terminals, and connected medical instruments. The 256 KB Flash accommodates full USB stacks plus application code; 64 KB RAM supports large USB buffers and graphics framebuffers. Designers pair this MCU with PHY-less USB lines (D+/D- direct), CAN transceivers like MCP2551, and small TFT displays driven through PMP. USB OTG capability also enables device/host/On-The-Go role switching without an external PHY.
When designing with this device, ensure 3.3V supply (2.5-3.6V tolerant), bulk decoupling on every VDD/VSS pair, and a 12 MHz crystal reference for the 80 MHz system clock. The exposed pad on the VQFN-64 must be soldered to a thermal/ground pour. Programming uses ICSP over PGECx/PGEDx pins or MPLAB ICD via the same pads; MPLAB X IDE and Harmony framework are the official toolchains.
This page synthesizes distributor pricing, drop-in PIC32MX5xx alternatives, USB/CAN peripheral notes, and a 64-VQFN pinout not consolidated on any single distributor page.
USD $5.27
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