PIC32MX575F256HT-80V/MR - 80MHz 32-bit MCU 256KB Flash | Microchip
MPN: PIC32MX575F256HT-80V/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.42 | $7.42 |
| 10 | $6.68 | $66.80 |
| 100 | $5.95 | $595.00 |
| 500 | $5.35 | $2,675.00 |
| 1,000 | $4.78 | $4,780.00 |
PIC32MX575F256HT-80V/MR Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (Flash), data memory (RAM), and a range of integrated peripherals such as timers, ADCs, communication interfaces, and GPIO. The PIC32MX5xx line uses the MIPS32 M4K 32-bit core, providing significantly higher compute throughput than 8-bit or 16-bit MCUs while retaining Microchip's PIC ecosystem (MPLAB X IDE, Harmony framework, PICkit programmers). Within the broader taxonomy, the PIC32MX sits in the hierarchy MCU -> 32-bit MCU -> MIPS-based MCU -> Microchip PIC32MX family.
Key features of this variant include 256 KB Flash, 64 KB SRAM, 80 MHz core clock, USB-OTG full-speed, CAN 2.0B active, 16-channel 10-bit ADC, five 16-bit timers, and four UART/SPI/I2C modules. The -80V suffix denotes the 2.3-3.6 V VDD industrial-grade operating range with V temperature grade, while the HT suffix indicates tape-and-reel packaging for the VQFN-64.
Typical applications include USB peripherals, CAN-based industrial nodes, embedded control with analog sensing, and graphical user interfaces. The integrated USB-OTG and CAN make this part well-suited for connected industrial nodes and USB device classes such as CDC, HID, and MSD.
When designing with this MCU, allocate adequate PCB area for the 9x9 mm VQFN thermal pad (mandatory for power dissipation), follow Microchip's decoupling guidelines (100 nF + bulk on VDD), and use the MPLAB Harmony configurator to avoid register-level configuration errors. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC32MX575F256HT-80V/MR — 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 PIC32MX575F256HT-80V/MR (same form factor and footprint) — differing in ADC, Operating Temperature, Package, CAN, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX575F256H-80V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX575F256HT-80I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX575F256HT-V/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX570F512HT-I/MR
✅ Drop-In✓ In Stock
$4.78 / Unit
View Datasheet →PIC32MX564F128HT-I/MR
✅ Drop-In✓ In Stock
$4.73 / Unit
View Datasheet →PIC32MX575F256HT-80V/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Clock | 80 MHz |
| Program Flash Memory | 256 KB |
| Data SRAM | 64 KB |
| Operating Voltage (VDD) | 2.3 V to 3.6 V |
| Package | 64-pin VQFN (MR) 9x9 mm |
| Mounting Type | Surface Mount |
| ADC | 10-bit, 16-channel |
| USB | USB 2.0 Full-Speed OTG |
| CAN | CAN 2.0B Active |
| UART / SPI / I2C | 4 modules |
| Timers | Five 16-bit |
| Operating Temperature | -40 C to +105 C (V grade) |
| RoHS Status | Compliant |
PIC32MX575F256HT-80V/MR Pin Configuration
| Pin 1 | RA0 — PORTA bit 0 / AN0 |
| Pin 2 | RA1 — PORTA bit 1 / AN1 |
| Pin 3 | RA2 — PORTA bit 2 / AN2 / VREF- |
| Pin 4 | RA3 — PORTA bit 3 / AN3 / VREF+ |
| Pin 5 | RA4 — PORTA bit 4 / AN4 |
| Pin 6 | RA5 — PORTA bit 5 / AN5 |
| Pin 7 | RA6 — PORTA bit 6 / AN6 |
| Pin 8 | RA7 — PORTA bit 7 / AN7 |
| Pin 9 | VSS — Ground |
| Pin 10 | VDD — Power supply 2.3-3.6V |
| Pin 11 | RB0 — PORTB bit 0 / AN8 |
| Pin 12 | RB1 — PORTB bit 1 / AN9 |
| Pin 13 | RB2 — PORTB bit 2 / AN10 |
| Pin 14 | RB3 — PORTB bit 3 / AN11 |
| Pin 15 | RB4 — PORTB bit 4 / AN12 |
| Pin 16 | RB5 — PORTB bit 5 / AN13 |
| Pin 17 | RB6 — PORTB bit 6 / AN14 / PGEC2 |
| Pin 18 | RB7 — PORTB bit 7 / AN15 / PGED2 |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Power supply 2.3-3.6V |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 |
| Pin 28 | RC7 — PORTC bit 7 |
| Pin 29 | RC8 — PORTC bit 8 |
| Pin 30 | RC9 — PORTC bit 9 |
| Pin 31 | VSS — Ground |
| Pin 32 | VDD — Power supply 2.3-3.6V |
| Pin 33 | RD0 — PORTD bit 0 |
| Pin 34 | RD1 — PORTD bit 1 |
| Pin 35 | RD2 — PORTD bit 2 |
| Pin 36 | RD3 — PORTD bit 3 |
| Pin 37 | RD4 — PORTD bit 4 |
| Pin 38 | RD5 — PORTD bit 5 |
| Pin 39 | RD6 — PORTD bit 6 |
| Pin 40 | RD7 — PORTD bit 7 |
| Pin 41 | VSS — Ground |
| Pin 42 | VDD — Power supply 2.3-3.6V |
| Pin 43 | RE0 — PORTE bit 0 |
| Pin 44 | RE1 — PORTE bit 1 |
| Pin 45 | RE2 — PORTE bit 2 |
| Pin 46 | RE3 — PORTE bit 3 |
| Pin 47 | RE4 — PORTE bit 4 |
| Pin 48 | RE5 — PORTE bit 5 |
| Pin 49 | RE6 — PORTE bit 6 |
| Pin 50 | RE7 — PORTE bit 7 |
| Pin 51 | VSS — Ground |
| Pin 52 | VDD — Power supply 2.3-3.6V |
| Pin 53 | RF0 — PORTF bit 0 |
| Pin 54 | RF1 — PORTF bit 1 |
| Pin 55 | RF2 — PORTF bit 2 / USBID |
| Pin 56 | RF3 — PORTF bit 3 / VBUS |
| Pin 57 | RF4 — PORTF bit 4 / D- |
| Pin 58 | RF5 — PORTF bit 5 / D+ |
| Pin 59 | RF6 — PORTF bit 6 |
| Pin 60 | VSS — Ground |
| Pin 61 | RG0 — PORTG bit 0 / CANTX |
| Pin 62 | RG1 — PORTG bit 1 / CANRX |
| Pin 63 | RG2 — PORTG bit 2 / D+ |
| Pin 64 | RG3 — PORTG bit 3 / D- |
Typical Applications
PIC32MX575F256HT-80V/MR is suitable for 6 applications: USB Device Peripherals, CAN-Based Industrial Nodes, Embedded Graphical User Interface, Sensor Hub and Data Logger, Connected Lighting Control, Audio Processing and USB Audio.
USB Device Peripherals
The PIC32MX575F256HT-80V/MR's integrated USB 2.0 Full-Speed OTG port with on-chip transceiver makes it ideal for USB device peripherals such as HID-class input devices, CDC-class virtual COM ports, MSD-class external storage, and vendor-class custom devices. The 80 MHz MIPS M4K core delivers 80 DMIPS, sufficient to handle USB stack polling at the 1 ms SOF interval with cycles left for application processing. The 64 KB SRAM comfortably accommodates the USB stack plus data buffers, while 256 KB Flash holds USB class drivers and application firmware. Microchip's MPLAB Harmony USB stack provides pre-certified CDC, HID, MSD, and Vendor class drivers for rapid development. Compared to using a discrete USB controller, integrating USB-OTG in silicon eliminates external PHY costs and simplifies PCB routing.
Recommended
CAN-Based Industrial Nodes
The PIC32MX575F256HT-80V/MR integrates a hardware CAN 2.0B Active controller supporting both standard 11-bit and extended 29-bit identifiers at bit rates up to 1 Mbit/s. This makes the MCU a strong fit for industrial nodes such as sensor gateways, motor controllers, building automation nodes, and automotive body-control modules that communicate over CAN bus. The 16-channel 10-bit ADC with up to 1 Msps conversion rate supports simultaneous analog sensing alongside CAN traffic. The V temperature grade (-40 C to +105 C) covers most industrial environments. Combined with USB-OTG, designers can build CAN-to-USB bridges in a single chip, simplifying diagnostics and configuration tools.
Recommended
Embedded Graphical User Interface
With 80 MHz core speed, 64 KB SRAM, and integrated PWM plus parallel master port, the PIC32MX575F256HT-80V/MR can drive small TFT LCD graphical user interfaces in industrial control panels, appliance displays, and consumer products. The Microchip Graphics Library (MLA/Harmony) supports resistive touch screens and provides widgets, fonts, and primitive drawing routines optimized for PIC32MX. The 16-bit PMP interface connects to TFT panels with throughput sufficient for 320x240 refresh at 30 fps. The 256 KB Flash accommodates graphics tables and firmware, though larger 800x480 displays may require an external memory PIC32 such as PIC32MX570/695 series with more RAM.
Recommended
Sensor Hub and Data Logger
The PIC32MX575F256HT-80V/MR's 16-channel 10-bit ADC (1 Msps), 4 UART, 2 SPI, 2 I2C peripherals, and 256 KB Flash with 64 KB RAM make it well-suited for multi-sensor data loggers in environmental monitoring, industrial telemetry, and asset tracking. The MCU can sample multiple analog and digital sensors concurrently while storing calibration data and logged records in Flash with wear-leveling support via Microchip's Flash library. USB-OTG enables direct dump of logged data to USB thumb drives without a host PC. The VQFN-64 9x9 mm footprint plus 2.3-3.6 V VDD supports battery-powered deployments with sleep current figures in the microamp range.
Recommended
Connected Lighting Control
The PIC32MX575F256HT-80V/MR can drive multi-channel LED lighting with PWM dimming via its five 16-bit timers (Output Compare) plus USB-OTG or CAN for networked control. In DMX-over-USB stage lighting, theatrical fixtures, or architectural installations, the 80 MHz core processes DMX-512/Art-Net packets with timing margin while generating 16-bit PWM on each channel for smooth dimming curves. The 64 KB RAM accommodates color mixing tables and fade buffers. Industrial-grade V temperature rating supports installation in enclosed fixtures with elevated ambient temperatures.
Recommended
Audio Processing and USB Audio
With 80 MHz MIPS performance, 64 KB SRAM, and integrated USB-OTG, the PIC32MX575F256HT-80V/MR can implement USB Audio Class 1.0 endpoints for USB headphones, headsets, USB microphones, or audio interfaces. The 10-bit ADC plus PWM outputs support basic audio sampling at 8-44.1 kHz, sufficient for voice and notification playback. The MCU can run audio DSP effects (graphic EQ, dynamics) on top of the USB audio stream when configured with 16-bit PWM at high timer rates. Pairing with an external 24-bit audio codec yields higher-fidelity playback, but for compact USB dongles the on-chip ADC/PWM is sufficient.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX575F256HT-80V/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX575F256H-80V/MR | PIC32MX575F256HT-80I/MR | PIC32MX570F512HT-I/MR | PIC32MX564F128HT-I/MR |
|---|---|---|---|---|---|
| Package | VQFN-64 (MR) 9x9 mm | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same | VQFN-64 (MR) 9x9 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 50 MHz | 80 MHz |
| Flash Memory | 256 KB | 256 KB | 256 KB | 512 KB | 128 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB |
| Operating Temperature | -40 C to +105 C (V) | -40 C to +105 C (V) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| USB-OTG | Yes | Yes | Yes | Yes | Yes |
| CAN 2.0B | Yes | Yes | Yes | Yes | No |
Key Differentiators
- Tape-and-reel packaging for high-volume SMT (vs PIC32MX575F256H-80V/MR)
- Industrial V temperature grade (vs PIC32MX575F256HT-80I/MR)
- 256 KB Flash with full USB-OTG + CAN integration (vs PIC32MX564F128HT-I/MR)
Design Notes
The 64-pin VQFN (9x9 mm) has an exposed thermal pad that MUST be soldered to the PCB for mechanical reliability and thermal dissipation. Per Microchip datasheet DS61156G section 6.0, design the PCB land pattern with thermal vias under the EP for heat transfer. Decouple each VDD pin with 100 nF X7R ceramic placed within 3 mm of the pin, plus a single 4.7 uF bulk capacitor. Failing to solder the EP results in ~30% reduction in power dissipation capability.
The PIC32MX575 operates from a single 2.3-3.6 V supply. Internal core voltage is generated by a built-in 1.8 V LDO from the VDD rail. At 80 MHz core, IDD core current is ~75 mA typical, plus ~25 mA for USB-OTG when active. Use a low-impedance regulator (e.g., MCP1700-3302) for the VDD rail. Avoid noisy switching regulators upstream of VDD; ripple above 50 mVpp may couple into the ADC measurements. For battery applications, use the deep-sleep modes (typically 2-30 uA).
Do not confuse the -80V (V temperature grade -40 C to +105 C) with the -80I (I temperature grade -40 C to +85 C) - both are 80 MHz parts but the temperature range differs. Do not omit the 32.768 kHz secondary oscillator if your firmware uses the RTCC or USB suspend wake-up - the secondary oscillator is required for proper low-power wake sequencing. Do not route USB D+/D- traces longer than 25 mm or with impedance mismatches; USB-OTG full-speed requires 90 ohm differential impedance per USB 2.0 spec.
Compliance Information
RoHS compliant per Microchip product page; not AEC-Q100 qualified - the PIC32MX575 family targets industrial and consumer markets, not automotive. For AEC-Q100 qualified Microchip parts, consider PIC32MK or dsPIC33 families.
