PIC32MX795F512HT-80V/PT - 80MHz 32-bit MCU, 512KB Flash | Microchip
MPN: PIC32MX795F512HT-80V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.32 | $11.32 |
| 10 | $10.46 | $104.60 |
| 100 | $9.18 | $918.00 |
| 250 | $8.62 | $2,155.00 |
| 1,000 | $7.75 | $7,750.00 |
| 3,000 | $7.1 | $21,300.00 |
PIC32MX795F512HT-80V/PT Overview
A 32-bit microcontroller (MCU) is a microprocessor core with on-chip Flash program memory, SRAM data memory, and integrated peripherals such as timers, ADCs, communication controllers, and I/O. PIC32MX MCUs use the MIPS32 M4K Harvard architecture with a 5-stage pipeline, delivering up to 105 DMIPS at 80 MHz. Compared to 8-bit or 16-bit MCUs, a 32-bit core gives substantially more headroom for protocol stacks (TCP/IP, USB, CANopen) and DSP-style math, while remaining simple enough to program in bare-metal or RTOS environments with Microchip's MPLAB Harmony framework.
Key features include 512 KB Flash (512K x 8) plus 12 KB auxiliary boot Flash, 128 KB SRAM, 16-channel 10-bit 1 Msps ADC, 51 user I/O pins, five 16-bit timers/counters, two I2C, two SPI, two UART, an external memory bus (PMP/EBI), and parallel master port. The on-chip 80 MHz internal oscillator with PLL and Fail-Safe Clock Monitor supports low-power Sleep, Idle, and Deep Sleep modes while keeping peripherals operating.
Typical applications include industrial Ethernet gateways, CAN-to-Ethernet bridges, USB-OTG peripherals (HID, CDC, MSD, audio), embedded web servers, and automotive infotainment nodes. The combination of integrated USB PHY and Ethernet MAC eliminates external transceiver chips on cost-sensitive designs, reducing BOM count and PCB area.
When designing with this part, take care to supply 3.3V regulated rails because the core tolerates only 2.3 V to 3.6 V. Provide 100 nF decoupling on each VDD pin and a 10 uF bulk cap on AVDD. The 'H' before -80V/PT denotes the high-pin-count variant (64 pins); pin-compatible 100-pin PF variants exist if you later need more I/O.
Drop-in alternatives for PIC32MX795F512HT-80V/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 PIC32MX795F512HT-80V/PT (same form factor and footprint) — differing in ADC, Package, DMA Channels, Operating Temperature, CAN.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX795F512H-80V/PT
✅ Drop-In✓ In Stock
$6.95 / Unit
View Datasheet →PIC32MX795F512HT-80V/MR
✅ Drop-In✓ In Stock
$6.21 / Unit
View Datasheet →PIC32MX795F512H-80V/MR
✅ Drop-In✓ In Stock
$8.92 / Unit
View Datasheet →PIC32MX775F512HT-80V/PT
✅ Drop-In✓ In Stock
$8.1 / Unit
View Datasheet →PIC32MX775F512H-80V/PT
✅ Drop-In✓ In Stock
$8.59 / Unit
View Datasheet →PIC32MX695F512HT-80I/MR
✅ Drop-In✓ In Stock
$8.42 / Unit
View Datasheet →PIC32MX575F512HT-80V/PT
✅ Drop-In✓ In Stock
$5.88 / Unit
View Datasheet →PIC32MX795F512HT-80V/PT Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K, 32-bit, 5-stage pipeline |
| Max CPU Clock | 80 MHz |
| DMIPS | 105 (at 80 MHz) |
| Program Flash | 512 KB (512K x 8) |
| Boot Flash | 12 KB auxiliary |
| SRAM | 128 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 51 |
| ADC | 10-bit, 16-channel, 1 Msps |
| USB | USB 2.0 On-The-Go with on-chip PHY |
| Ethernet | 10/100 MAC with MII/RMII |
| CAN | 2 x CAN 2.0b controllers |
| DMA Channels | 8 |
| Timers | 5 x 16-bit timer/counter |
| Communication | 2x UART, 2x SPI, 2x I2C |
| Parallel Master Port / EBI | Yes |
| Temperature Range (V grade) | -40C to +105C |
| Package | 64-pin TQFP (PT), 10x10 mm |
| RoHS | Compliant |
| Lead-free | Yes (Pb-free) |
PIC32MX795F512HT-80V/PT Pin Configuration
| Pin 1 | SOCKET1 / RG2 — General purpose I/O / Ethernet signal |
| Pin 2 | RG3 — General purpose I/O |
| Pin 3 | MCLR — Master Clear (reset) input, active low |
| Pin 4 | RG6 — General purpose I/O |
| Pin 5 | RG7 — General purpose I/O |
| Pin 6 | RG8 — General purpose I/O |
| Pin 7 | RG9 — General purpose I/O |
| Pin 8 | VDD — Digital supply voltage (2.3 V to 3.6 V) |
| Pin 9 | VSS — Digital ground |
| Pin 10 | RB15 — General purpose I/O |
| Pin 11 | RB14 — General purpose I/O |
| Pin 12 | RB13 — General purpose I/O / AN13 |
| Pin 13 | RB12 — General purpose I/O / AN12 |
| Pin 14 | RB11 — General purpose I/O / AN11 |
| Pin 15 | RB10 — General purpose I/O / AN10 |
| Pin 16 | RB9 — General purpose I/O / AN9 |
| Pin 17 | RB8 — General purpose I/O / AN8 |
| Pin 18 | RB7 — General purpose I/O / AN7 |
| Pin 19 | RB6 — General purpose I/O / AN6 |
| Pin 20 | RB5 — General purpose I/O / AN5 |
| Pin 21 | RB4 — General purpose I/O / AN4 |
| Pin 22 | RB3 — General purpose I/O / AN3 |
| Pin 23 | RB2 — General purpose I/O / AN2 |
| Pin 24 | RB1 — General purpose I/O / AN1 |
| Pin 25 | RB0 — General purpose I/O / AN0 |
| Pin 26 | RD15 — General purpose I/O / PMP data line |
| Pin 27 | RD14 — General purpose I/O / PMP data line |
| Pin 28 | RD13 — General purpose I/O / PMP data line |
| Pin 29 | RD12 — General purpose I/O / PMP data line |
| Pin 30 | RD11 — General purpose I/O / PMP data line |
| Pin 31 | RD10 — General purpose I/O / PMP data line |
| Pin 32 | RD9 — General purpose I/O / PMP data line |
| Pin 33 | RD8 — General purpose I/O / PMP data line |
| Pin 34 | RD7 — General purpose I/O / PMP data line |
| Pin 35 | RD6 — General purpose I/O / PMP data line |
| Pin 36 | RD5 — General purpose I/O / PMP data line |
| Pin 37 | RD4 — General purpose I/O / PMP data line |
| Pin 38 | RD3 — General purpose I/O / PMP data line |
| Pin 39 | RD2 — General purpose I/O / PMP data line |
| Pin 40 | RD1 — General purpose I/O / PMP data line |
| Pin 41 | RD0 — General purpose I/O / PMP data line |
| Pin 42 | RC15 — General purpose I/O |
| Pin 43 | RC14 — General purpose I/O |
| Pin 44 | RC13 — General purpose I/O |
| Pin 45 | RC12 — General purpose I/O |
| Pin 46 | RC11 — General purpose I/O |
| Pin 47 | RC10 — General purpose I/O |
| Pin 48 | RC9 — General purpose I/O |
| Pin 49 | RC8 — General purpose I/O |
| Pin 50 | RC7 — General purpose I/O |
| Pin 51 | RC6 — General purpose I/O |
| Pin 52 | RC5 — General purpose I/O |
| Pin 53 | RC4 — General purpose I/O |
| Pin 54 | RC3 — General purpose I/O |
| Pin 55 | RC2 — General purpose I/O |
| Pin 56 | RC1 — General purpose I/O |
| Pin 57 | RC0 — General purpose I/O |
| Pin 58 | RA15 — General purpose I/O |
| Pin 59 | RA14 — General purpose I/O |
| Pin 60 | RA10 — General purpose I/O |
| Pin 61 | RA9 — General purpose I/O |
| Pin 62 | RA8 — General purpose I/O |
| Pin 63 | RA7 — General purpose I/O |
| Pin 64 | RA6 — General purpose I/O |
Typical Applications
PIC32MX795F512HT-80V/PT is suitable for 6 applications: Industrial Ethernet Gateway, CAN-to-Ethernet Bridge, USB-OTG Embedded Peripheral, Embedded Web Server / HMI Controller, Automotive Infotainment Node, Data Acquisition / Industrial Sensor Hub.
Industrial Ethernet Gateway
The PIC32MX795F512HT-80V/PT is a strong fit for industrial Ethernet gateways because its integrated 10/100 Ethernet MAC with MII/RMII plus USB-OTG and dual CAN lets one MCU aggregate field-bus traffic and bridge it to Ethernet. With 512 KB Flash and 128 KB SRAM, a TCP/IP Lite + UDP + Modbus stack plus a CANopen library can coexist with headroom for application logic. The 8 DMA channels handle Ethernet frame movement independently of the core, freeing the 80 MHz CPU for protocol translation. The -40C to +105C V-grade withstands cabinet temperatures near motors and drives.
Recommended
CAN-to-Ethernet Bridge
Two on-chip CAN 2.0b controllers with 1024 message buffers, paired with the Ethernet MAC, make the PIC32MX795F512HT-80V/PT ideal for industrial CAN-to-Ethernet bridges such as CAN-TCP/IP or CAN-Web-Server nodes. The 8 DMA channels service both CAN controllers and Ethernet independently, sustaining 1 Mbit CAN traffic without dropping frames. 128 KB SRAM is sufficient for CAN frame reformatting plus TCP/IP socket buffers, eliminating any external memory chip. The V-grade temperature rating supports factory-floor deployment near variable-frequency drives.
Recommended
USB-OTG Embedded Peripheral
The integrated USB 2.0 On-The-Go controller with on-chip PHY eliminates external transceivers and lets the PIC32MX795F512HT-80V/PT act as a USB host or device in HID, CDC, MSD, or audio class peripherals. The 16-channel 10-bit ADC plus 51 I/O provide plenty of analog and digital channels for industrial sensor aggregation with USB streaming. 512 KB Flash hosts Microchip's MPLAB Harmony USB stack plus application code without external boot ROM. The V-grade part supports the -40C to +105C environment typical of USB-tethered test equipment.
Recommended
Embedded Web Server / HMI Controller
With 512 KB Flash for HTML pages plus an HTTP server, and 128 KB SRAM for TCP socket buffers, the PIC32MX795F512HT-80V/PT hosts a self-contained embedded web server for remote equipment monitoring. The Ethernet MAC, 16-channel ADC, and Parallel Master Port support a small LCD or character display for local HMI through the same MCU. 80 MHz core sustains HTTP request handling plus data acquisition at 1 Msps without dropping Ethernet frames, thanks to dedicated DMA. The V-grade ensures operation in enclosed control cabinets without derating.
Recommended
Automotive Infotainment Node
Dual CAN 2.0b controllers, USB-OTG (for media stick support), and the -40C to +105C V-grade temperature window make the PIC32MX795F512HT-80V/PT a viable automotive infotainment auxiliary node that bridges CAN body networks to USB mass storage. The 51 user I/Os drive buttons, LED backlights, and rotary encoders directly. 512 KB Flash holds CAN, USB, and a small FAT file-system stack concurrently. Designers should note that the part is commercial/industrial-grade, not AEC-Q100, so it sits behind a vehicle-qualified supervisory MCU.
Recommended
Data Acquisition / Industrial Sensor Hub
The 16-channel 10-bit ADC at 1 Msps, 51 user I/Os, and 128 KB SRAM make the PIC32MX795F512HT-80V/PT well suited for industrial multi-sensor data acquisition hubs that stream readings over Ethernet or USB. The 8 DMA channels service ADC sample buffers and UART/SPI sensor reads without CPU intervention, so the 80 MHz core stays available for filtering and protocol framing. V-grade operation and 2.3-3.6 V tolerance ease integration into 24V-bus industrial systems with intermediate 3.3 V regulators.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX795F512HT-80V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX795F512H-80V/PT | PIC32MX795F512HT-80V/MR | PIC32MX775F512HT-80V/PT | PIC32MX695F512HT-80I/MR | PIC32MX575F512HT-80V/PT |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (PT) | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same | 64-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max CPU Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Ethernet MAC | Yes (10/100 MII/RMII) | Yes (10/100 MII/RMII) | Yes (10/100 MII/RMII) | No | No | No |
| CAN Controllers | 2 | 2 | 2 | 2 | 1 | 0 |
| USB-OTG | Yes (with on-chip PHY) | Yes | Yes | Yes | Yes | Yes |
| Temperature Grade | V: -40C to +105C | V: -40C to +105C | V: -40C to +105C | V: -40C to +105C | I: -40C to +85C | V: -40C to +105C |
Key Differentiators
- Integrated 10/100 Ethernet MAC plus dual CAN in a single 64-pin MCU (vs PIC32MX775F512HT-80V/PT)
- Highest peripheral density in the PIC32MX5/6/7 family at 64 pins (vs PIC32MX575F512HT-80V/PT)
- V-grade temperature window for industrial deployment (vs PIC32MX695F512HT-80I/MR)
Design Notes
The PIC32MX795F512HT-80V/PT requires a regulated 2.3 V to 3.6 V supply; place a 10 uF bulk capacitor on each VDD pin and 100 nF ceramic decoupling within 3 mm of every supply pin. Add a separate 10 uF + 100 nF pair on AVDD to isolate the analog supply from digital switching noise. For best ADC performance, drive AVDD from an LDO filter or ferrite bead tied to the main 3.3 V rail rather than routing digital VDD directly to AVDD.
The 64-pin TQFP (PT) at 0.5 mm pitch requires 0.20 mm to 0.25 mm trace width on a 4-layer board with a continuous ground plane beneath the part. Route Ethernet MII/RMII signals as 50-ohm controlled-impedance traces (length-matched within 25 mm) and place the LAN8742A PHY within 50 mm of the MAC pins to avoid signal-integrity issues. Keep the MCLR trace short and add the standard 10 kohm pull-up plus 100 nF to ground for clean reset behavior.
Do not exceed the absolute maximum 4.0 V on any VDD pin even momentarily during hot-plug events; add a TVS diode such as SMAJ3.3CA on VBUS and USB connector lines. Configure the unused I/O pins as outputs (driving low) rather than inputs to avoid parasitic current. When migrating code from PIC32MX795 to PIC32MX575 or 675, verify that any code using Ethernet is removed and that the CAN driver is rebuilt for the actual number of CAN controllers present.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this part is commercial/industrial grade and intended for industrial automation, not automotive safety-critical systems.
