PIC32MX795F512HT-80V/MR - 80MHz 512KB Flash MCU | Microchip
MPN: PIC32MX795F512HT-80V/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.69 | $86.90 |
| 100 | $7.55 | $755.00 |
| 500 | $6.84 | $3,420.00 |
| 1,000 | $6.21 | $6,210.00 |
PIC32MX795F512HT-80V/MR Overview
A 32-bit microcontroller (MCU) is a single-chip computer integrating a CPU core, memory, and programmable peripherals on one die. The PIC32MX family uses the MIPS32 M4K core with a 5-stage Harvard pipeline, making it part of the broader microcontroller taxonomy: MCU -> 32-bit MCU -> MIPS-based MCU -> high-performance connectivity MCU. These connectivity-focused MCUs sit between general-purpose microcontrollers and application processors, optimized for embedded networking and industrial protocols.
Key features include 51 general-purpose I/O, 8 dedicated DMA channels servicing USB OTG, Ethernet, and CAN, a 16-bit parallel master port for external graphics or memory, two I2C, two SPI, six UART, and a 10-bit 1 Msps ADC with up to 16 channels. The device also integrates a real-time clock and comparator, and runs Microchip's MPLAB Harmony firmware framework, enabling drivers, middleware, and USB/Ethernet stacks.
Architecturally, the M4K core delivers 1.56 DMIPS/MHz, Harvard bus with separate instruction and data paths, and hardware multiply/divide. The Ethernet MAC supports both MII and RMII PHYs, while USB-OTG with integrated PHY removes external transceiver cost. Dual CAN modules with 1024 buffers each suit industrial fieldbus designs. Compared to Cortex-M3/M4 alternatives, the PIC32MX offers stronger connectivity integration but draws more power.
Typical applications include industrial Ethernet gateways, CAN-to-Ethernet bridges, USB device/host peripherals, building automation controllers, and embedded web servers. The integrated connectivity reduces BOM cost versus discrete MCU plus external controllers, while MPLAB Harmony accelerates time to market.
When designing with this part, prioritize PCB layout for the 64-pin VQFN: use 0.5 mm pitch fan-out, thermal pad with 9+ thermal vias, and follow Microchip's decoupling guidance. Validate USB and Ethernet signal integrity with the reference schematics in the PIC32MX5/6/7XX family datasheet.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving procurement and embedded engineers a single reference for part selection.
Drop-in alternatives for PIC32MX795F512HT-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 PIC32MX795F512HT-80V/MR (same form factor and footprint) — differing in Package, ADC, Operating Temperature, CAN, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX795F512H-80V/MR
✅ Drop-In✓ In Stock
$8.92 / Unit
View Datasheet →PIC32MX795F512H-80I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX795F512HT-80I/MR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX775F512HT-80V/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.4 / Unit
View Datasheet →PIC32MX675F512HT-80V/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.05 / Unit
View Datasheet →PIC32MX695F512HT-80I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.42 / Unit
View Datasheet →PIC32MX795F512HT-80V/MR Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K |
| Core Architecture | 32-bit RISC, 5-stage Harvard pipeline |
| Maximum CPU Speed | 80 MHz |
| DMIPS | 105 DMIPS |
| Flash Program Memory | 512 KB |
| SRAM | 128 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 51 |
| Package | 64-pin VQFN (9x9 mm, 0.5 mm pitch) |
| USB | USB 2.0 On-The-Go with integrated PHY |
| Ethernet | 10/100 MAC with MII/RMII |
| CAN | 2x CAN 2.0b with 1024-message buffers |
| DMA Channels | 8 dedicated (USB OTG, Ethernet, CAN) |
| ADC | 10-bit, 1 Msps, up to 16 channels |
| Operating Temperature | -40 °C to +105 °C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020) |
| Lead-Free / RoHS | Lead-free, RoHS compliant |
| UART | 6 |
| SPI | 2 |
| I2C | 2 |
PIC32MX795F512HT-80V/MR Pin Configuration
| Pin 1 | RG15 — General purpose I/O / Ethernet RMII REF_CLK |
| Pin 2 | VSS — Ground reference |
| Pin 3 | RD0 — General purpose I/O / INT0 |
| Pin 4 | RD1 — General purpose I/O |
| Pin 5 | RD2 — General purpose I/O / OC3 |
| Pin 6 | RD3 — General purpose I/O / OC4 |
| Pin 7 | RD4 — General purpose I/O |
| Pin 8 | RD5 — General purpose I/O |
| Pin 9 | RD6 — General purpose I/O |
| Pin 10 | RD7 — General purpose I/O |
| Pin 11 | RC1 — General purpose I/O / T2CK |
| Pin 12 | RC2 — General purpose I/O / T3CK |
| Pin 13 | RC3 — General purpose I/O |
| Pin 14 | RC4 — General purpose I/O |
| Pin 15 | RC5 — General purpose I/O / OC1 |
| Pin 16 | VSS — Ground |
| Pin 17 | VDD — I/O supply 3.3V |
| Pin 18 | RB5 — General purpose I/O |
| Pin 19 | RB4 — General purpose I/O |
| Pin 20 | RB3 — General purpose I/O |
| Pin 21 | RB2 — General purpose I/O |
| Pin 22 | RB1 — General purpose I/O |
| Pin 23 | RB0 — General purpose I/O / PGEC |
| Pin 24 | RB6 — General purpose I/O / PGED |
| Pin 25 | RB7 — General purpose I/O |
| Pin 26 | RB8 — General purpose I/O |
| Pin 27 | RB9 — General purpose I/O |
| Pin 28 | RB10 — General purpose I/O |
| Pin 29 | RB11 — General purpose I/O |
| Pin 30 | VSS — Ground |
| Pin 31 | VDD — I/O supply 3.3V |
| Pin 32 | RB12 — General purpose I/O |
| Pin 33 | RB13 — General purpose I/O |
| Pin 34 | RB14 — General purpose I/O |
| Pin 35 | RB15 — General purpose I/O |
| Pin 36 | RF0 — General purpose I/O |
| Pin 37 | RF1 — General purpose I/O |
| Pin 38 | RF2 — General purpose I/O / DAC1 |
| Pin 39 | RF3 — General purpose I/O / DAC2 |
| Pin 40 | RF4 — General purpose I/O |
| Pin 41 | RF5 — General purpose I/O |
| Pin 42 | RF6 — General purpose I/O |
| Pin 43 | RF7 — General purpose I/O |
| Pin 44 | RF8 — General purpose I/O |
| Pin 45 | VSS — Ground |
| Pin 46 | VDD — I/O supply 3.3V |
| Pin 47 | RG0 — General purpose I/O |
| Pin 48 | RG1 — General purpose I/O |
| Pin 49 | RG2 — General purpose I/O |
| Pin 50 | RG3 — General purpose I/O |
| Pin 51 | RG6 — General purpose I/O |
| Pin 52 | RG7 — General purpose I/O |
| Pin 53 | RG8 — General purpose I/O |
| Pin 54 | RG9 — General purpose I/O |
| Pin 55 | RA0 — General purpose I/O / TCK |
| Pin 56 | RA1 — General purpose I/O / TMS |
| Pin 57 | RA2 — General purpose I/O |
| Pin 58 | RA3 — General purpose I/O |
| Pin 59 | RA4 — General purpose I/O / SOSCO |
| Pin 60 | RA5 — General purpose I/O / SOSCI |
| Pin 61 | RA6 — General purpose I/O / Trace Clock |
| Pin 62 | RA7 — General purpose I/O / Trace Data |
| Pin 63 | VSS — Ground |
| Pin 64 | VDD — I/O supply 3.3V |
Typical Applications
PIC32MX795F512HT-80V/MR is suitable for 6 applications: Industrial Ethernet Gateway, CAN-to-Ethernet Bridge, USB Device/Host Peripheral, Building Automation Controller, Embedded Web Server / IoT Edge Node, Medical Data Acquisition System.
Industrial Ethernet Gateway
The PIC32MX795F512HT-80V/MR is ideal for industrial Ethernet gateways requiring multi-protocol connectivity in a single chip. Its integrated 10/100 Ethernet MAC with MII/RMII, dual CAN 2.0b modules with 1024-message buffers, and USB-OTG with on-chip PHY eliminate external transceiver cost. The 512 KB Flash holds a full TCP/IP stack via MPLAB Harmony Net, while 128 KB SRAM supports concurrent Ethernet, CAN, and USB traffic without bottlenecks. At 80 MHz / 105 DMIPS, the M4K core comfortably handles protocol translation between Modbus TCP, EtherNet/IP, and CANopen. The 64-pin VQFN with industrial -40 to +105 °C operation suits DIN-rail mounted controllers in factory automation environments.
Recommended
CAN-to-Ethernet Bridge
The PIC32MX795F512HT-80V/MR's dual CAN 2.0b controllers combined with the 10/100 Ethernet MAC make it a natural fit for CAN-to-Ethernet protocol bridges used in automotive diagnostics, building automation, and industrial telemetry. Each CAN module supports 1024 buffers, enabling time-stamped message logging at full bus load. The M4K core's 105 DMIPS throughput handles OBD-II parsing, J1939 transport layer, and TCP/IP encapsulation simultaneously. Designers benefit from MPLAB Harmony's CAN and TCP/IP stacks running cooperatively, and the 64-pin VQFN's compact 9x9 mm footprint fits inside sealed IP65 enclosure housings. The integrated USB-OTG enables local configuration via a maintenance port without additional silicon.
Recommended
USB Device/Host Peripheral
For USB peripherals such as data loggers, industrial barcode scanners, and HID controllers, the PIC32MX795F512HT-80V/MR's integrated USB-OTG with on-chip PHY removes the need for external transceivers, reducing BOM cost and PCB area. The 512 KB Flash accommodates USB class drivers (CDC, HID, MSD, vendor) from MPLAB Harmony, while 128 KB SRAM buffers high-speed isochronous transfers. Host mode enables connection to USB mass storage, keyboards, or wireless dongles for embedded kiosks. The 80 MHz core handles USB 2.0 full-speed (12 Mbps) protocol overhead with margin for application logic, and the 64-pin VQFN's exposed thermal pad supports sustained USB host current draw (500 mA) without thermal throttling.
Recommended
Building Automation Controller
The PIC32MX795F512HT-80V/MR enables compact building automation controllers that aggregate BACnet MS/TP (over RS-485), KNX, or CAN fieldbus traffic onto Ethernet for supervisory control. Its dual CAN modules support BACnet MS/TP or proprietary fieldbus simultaneously, while the Ethernet MAC provides BACnet/IP, Modbus TCP, or MQTT connectivity to cloud platforms. The 512 KB Flash fits the full Microchip Harmony BACnet stack, and 128 KB RAM buffers multiple TCP sockets for concurrent supervisory connections. The industrial -40 to +105 °C temperature range and lead-free VQFN package meet the long-term reliability requirements of HVAC and lighting control panels installed in ceiling spaces.
Recommended
Embedded Web Server / IoT Edge Node
The PIC32MX795F512HT-80V/MR is well matched to embedded web server and IoT edge node applications that expose configuration and telemetry through HTTP, MQTT, or CoAP interfaces. Its 10/100 Ethernet MAC and USB-OTG enable both wired and wireless (via USB Wi-Fi dongle) connectivity without external controllers. The 512 KB Flash accommodates a full HTTP server plus TLS client (via Harmony WolfSSL), and the 128 KB SRAM holds multiple TCP/IP sockets and JSON buffers for RESTful APIs. The 80 MHz M4K core performs TLS handshakes and JSON parsing in tens of milliseconds, and the 64-pin VQFN's small 9x9 mm footprint allows integration into space-constrained edge devices with industrial operating temperature ratings.
Recommended
Medical Data Acquisition System
The PIC32MX795F512HT-80V/MR is suitable for medical data acquisition peripherals such as portable patient monitors and point-of-care diagnostic devices, where its 10-bit 1 Msps ADC with up to 16 channels digitizes biosensor signals while the integrated Ethernet MAC streams results to a host system. The 512 KB Flash holds FDA-compliant firmware patterns, and 128 KB SRAM buffers multi-channel acquisition before Ethernet transmission. The USB-OTG port enables both device-mode data transfer to PCs and host-mode connection to barcode scanners for patient ID. The lead-free 64-pin VQFN package and industrial temperature range support reliable operation in clinical environments, and Microchip's longevity program covers PIC32MX family for medical device lifecycles.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX795F512HT-80V/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX795F512H-80V/MR | PIC32MX795F512H-80I/MR | PIC32MX775F512HT-80V/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Core / Speed | MIPS32 M4K / 80 MHz / 105 DMIPS | MIPS32 M4K / 80 MHz / 105 DMIPS | MIPS32 M4K / 80 MHz / 105 DMIPS | MIPS32 M4K / 80 MHz / 105 DMIPS |
| Flash / RAM | 512 KB / 128 KB | 512 KB / 128 KB | 512 KB / 128 KB | 512 KB / 128 KB |
| Ethernet MAC | 10/100 MII/RMII | 10/100 MII/RMII | 10/100 MII/RMII | None |
| USB | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY |
| CAN 2.0b | 2 channels, 1024 buffers each | 2 channels, 1024 buffers each | 2 channels, 1024 buffers each | None |
| Operating Temperature | -40 to +105 °C | -40 to +105 °C | -40 to +85 °C | -40 to +105 °C |
| Packaging | Tape & Reel | Tray | Tray | Tape & Reel |
Key Differentiators
- Highest-integration 80 MHz PIC32 with Ethernet + dual CAN + USB-OTG (vs PIC32MX775F512HT-80V/MR)
- Tape-and-reel packaging for high-volume SMT (vs PIC32MX795F512H-80V/MR)
- Extended industrial temperature grade (-40 to +105 °C) (vs PIC32MX795F512HT-80I/MR)
Design Notes
The 64-pin VQFN (9x9 mm) package uses 0.5 mm pitch pads requiring precise 4/4 mil trace-and-space fan-out on the outer PCB layers. Per Microchip AN452, the exposed thermal pad (EP) MUST be soldered to a 7x7 array of 0.3 mm thermal vias on 1.0 mm pitch to a bottom-layer copper pour for adequate heat dissipation. Without proper EP soldering, junction temperature can exceed 125 °C at moderate loads. Keep high-speed USB and Ethernet traces on the top layer with continuous reference ground plane.
Estimated: at 80 MHz with all peripherals enabled, the PIC32MX795F512HT-80V/MR draws approximately 70 mA from the 3.3 V rail. Decouple each VDD/VSS pair with a 0.1 µF ceramic capacitor placed within 3 mm of the pin, plus a single 4.7 µF bulk capacitor near the package. The on-chip LDO generates the 1.8 V core supply internally from VDD; no external core regulator is required. Use a ferrite bead between digital 3.3 V and analog AVdd if ADC accuracy matters.
For the 10/100 Ethernet MAC in RMII mode, route the 50 MHz REF_CLK trace with 50 Ω controlled impedance and length-matching within 50 mils of the data lines. For USB-OTG, the D+/D- traces require 90 Ω differential impedance and must be length-matched to within 150 mils. Place the 27 Ω series termination resistors within 4 mm of the MCU pins. Refer to the PIC32MX5/6/7XX family datasheet and Microchip AN1240 for USB layout guidance.
Do not exceed 3.6 V on any VDD or I/O pin - the PIC32MX795F512H lacks 5 V tolerance and will latch up with permanent damage. The two CAN modules require external transceivers (e.g., MCP2551 or MCP25625); the on-chip CAN is protocol-only. The USB-OTG VBUS pin requires a 5 V boost regulator for host mode; device mode draws power from the USB cable. Finally, the trace/debug pins (RB6/PGED, RB7/PGEC, RA0/TCK, RA1/TMS) must not be repurposed for application I/O without considering in-circuit programming access.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade MCU, not automotive. Halogen-free status not explicitly stated in the verified data.
