PIC32MX675F512L-80V/PT - 80MHz 512KB Flash MCU USB-OTG Ethernet | Microchip
MPN: PIC32MX675F512L-80V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.2 | $11.20 |
| 10 | $10.05 | $100.50 |
| 100 | $8.92 | $892.00 |
| 500 | $7.85 | $3,925.00 |
| 1,000 | $6.74 | $6,740.00 |
PIC32MX675F512L-80V/PT Overview
A 32-bit MCU (microcontroller) is a single-chip computer that integrates a 32-bit processor core, program memory (Flash), data memory (SRAM), and peripherals (ADC, timers, communication interfaces) into one device. PIC32MX microcontrollers sit in the hierarchy: 32-bit MCU -> MIPS-based embedded controller -> connectivity MCU family. Compared to 8/16-bit MCUs, 32-bit parts deliver higher instruction throughput, larger addressable memory, and richer peripheral sets for networked embedded systems.
The PIC32MX675F512L-80V/PT key features include a 5-stage Harvard pipeline with MIPS16e code compression (up to 40% smaller code), 4 dedicated DMA channels for USB OTG, a 16-channel 10-bit 1 Msps ADC, two I2C, two SPI, two UART, two CAN 2.0b modules, five 16-bit timers, and a real-time clock. Operating voltage is 2.3V-3.6V across an industrial -40C to +105C range with multiple power management modes (Run, Idle, Sleep). The "-80V" suffix denotes 80 MHz / -40C to +105C; the "/PT" suffix denotes the 100-pin TQFP package.
Architecturally the part uses a MIPS32 M4K core with hardware multiply/divide and a hardware debug port (Trace capable). Four DMA channels offload USB-OTG traffic so the core is not interrupt-bound, and the integrated USB-PHY plus Ethernet MAC eliminate external PHY/bridge ICs on compact designs. The Fail-Safe Clock Monitor and dual watchdogs support IEC 60730 safety-class designs.
Typical applications include industrial Ethernet gateways, building-automation controllers, USB-OTG device/host bridges, CAN-based automotive sub-net adapters (cluster nodes, body controllers), and embedded web servers using the integrated MAC + RTOS such as FreeRTOS or Micrium. The wide peripheral mix makes the chip a common choice for protocol conversion (UART/SPI to Ethernet/USB/CAN).
When designing with this device, route the 50 MHz external crystal traces as short as possible with a guard ring, place the 10 uF + 0.1 uF VDD decoupling pair within 3 mm of each VDD pin, and connect the exposed thermal pad to a continuous ground plane for thermal and EMI performance.
This page synthesizes XAIPART distributor pricing, verified drop-in PIC32 family alternatives, and practical PCB/peripheral design notes that are not consolidated in the Microchip datasheet alone.
Drop-in alternatives for PIC32MX675F512L-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 PIC32MX675F512L-80V/PT (same form factor and footprint) — differing in ADC, Package, DMA Channels, Operating Temperature, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX675F512L-80I/PT
✅ Drop-In✓ In Stock
$5.42 / Unit
View Datasheet →PIC32MX675F512LT-80V/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX675F512L-80V/PF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX550F256L-I/PT
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →PIC32MX270F512L-50I/PF
✅ Drop-In✓ In Stock
$5.2 / Unit
View Datasheet →DSPIC33EP256MU810-E/PT
✅ Drop-In✓ In Stock
$6.45 / Unit
View Datasheet →PIC32MX675F512L-80V/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit |
| Maximum Clock Frequency | 80 MHz |
| Performance | 105 DMIPS |
| Program Flash Memory | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Supply Voltage Range | 2.3 V to 3.6 V |
| Operating Temperature Range | -40C to +105C |
| USB | USB 2.0 On-The-Go with integrated PHY |
| Ethernet | 10/100 MAC with MII/RMII |
| ADC | 10-bit, 16 channels, up to 1 Msps |
| CAN | 2 x CAN 2.0B modules |
| UART | 2 (up to 6 depending on remap) |
| SPI | 2 (up to 4 including remap) |
| I2C | 2 |
| Timers | 5 x 16-bit |
| DMA Channels | 4 dedicated for USB OTG + peripheral DMA |
| Package | 100-pin TQFP (12 x 12 mm, 0.4 mm pitch) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Instruction Set | MIPS32 with MIPS16e code compression (up to 40% smaller code) |
PIC32MX675F512L-80V/PT 100-pin tqfp (12 x 12 mm, 0.4 mm pitch) Pin Configuration Guide
Pin configuration for PIC32MX675F512L-80V/PT (100-pin tqfp (12 x 12 mm, 0.4 mm pitch) 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 PIC32MX675F512L-80V/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
PIC32MX675F512L-80V/PT is suitable for 8 applications: Industrial Ethernet Gateway, USB-OTG Device/Host Bridge, Building Automation Controller, CAN-Based Automotive Sub-Net Node, Embedded Web Server / IoT Edge Node, HMI / Industrial Touchscreen Controller, Protocol Conversion Bridge (UART/SPI to Ethernet/USB/CAN), Data Acquisition / Sensor Hub Controller.
Industrial Ethernet Gateway
The PIC32MX675F512L-80V/PT's integrated 10/100 Ethernet MAC with MII/RMII and 80 MHz MIPS M4K core makes it well suited for industrial protocol gateways. The 512 KB Flash holds a full TCP/IP stack plus a Modbus TCP or EtherNet/IP library, while 64 KB SRAM accommodates socket buffers without external memory. Four dedicated DMA channels keep the core responsive under heavy network traffic. Hardware IEEE 1588 support and IEC 60730-compatible watchdog/WDT blocks support safety-critical designs.
Recommended
USB-OTG Device/Host Bridge
With integrated USB 2.0 On-The-Go including PHY, the PIC32MX675F512L-80V/PT can act as both a USB device (peripheral mode) and host (controlling mass storage or HID peripherals) without external PHY ICs. The 80 MHz core handles USB-HID, CDC, or mass-storage class drivers while 512 KB Flash provides space for vendor-specific request handlers. The 4 dedicated DMA channels offload USB packet transfers so the core stays free for application logic.
Recommended
Building Automation Controller
The PIC32MX675F512L-80V/PT's mix of 2 CAN 2.0B, 2 UART, 2 SPI, 2 I2C, and Ethernet is ideal for building automation nodes that bridge BACnet, KNX, and IP traffic. The wide 2.3-3.6 V supply tolerance accepts 24 V-derived industrial rails after a small buck regulator. Dual WDT and Fail-Safe Clock Monitor support IEC 60730 Class B safety requirements for HVAC and lighting controllers.
Recommended
CAN-Based Automotive Sub-Net Node
The PIC32MX675F512L-80V/PT's two independent CAN 2.0B modules enable gateway duty between automotive CAN buses (powertrain vs body vs chassis). 105 DMIPS compute headroom runs OBD-II parsing, body-controller routines, and basic diagnostics. The 16-channel 10-bit ADC reads sensor inputs directly for body-control modules like seat-position controllers and mirror adjusters.
Recommended
Embedded Web Server / IoT Edge Node
With integrated Ethernet MAC plus RTOS support (FreeRTOS, Micrium uC/OS), the PIC32MX675F512L-80V/PT can run a small HTTP/MQTT server inside an IoT node. The 512 KB Flash is sufficient for an embedded web page plus TLS libraries and the 64 KB SRAM holds TLS session buffers and TCP socket state. Designers can spin web-configurable sensors without separate gateway hardware.
Recommended
HMI / Industrial Touchscreen Controller
The 80 MHz MIPS M4K at 105 DMIPS drives a resistive-touch HMI through the 16-channel 10-bit ADC and external SPI LCD, while simultaneously running a Modbus master over UART. The TQFP-100 footprint exposes enough pins for 4x4 keyboard scan plus parallel RGB interface to small TFTs. For RGB-heavy UI work the upgrade path is PIC32MZ DA family, but the PIC32MX675F512L-80V/PT remains the cost-effective choice for monochrome or simple QVGA panels.
Recommended
Protocol Conversion Bridge (UART/SPI to Ethernet/USB/CAN)
The PIC32MX675F512L-80V/PT's combination of 2 UART, 2 SPI, 2 I2C, 2 CAN, USB-OTG, and 10/100 Ethernet supports serial-to-IP and fieldbus conversion in a single chip. 105 DMIPS throughput handles multi-master arbitration while the 4 USB OTG DMA channels keep bidirectional traffic flowing. This makes the part a standard BOM item for legacy-to-modern protocol bridges in industrial retrofit applications.
Recommended
Data Acquisition / Sensor Hub Controller
The PIC32MX675F512L-80V/PT's 16-channel 10-bit ADC at 1 Msps, 5 x 16-bit timers, and DMA channels suit multi-sensor data acquisition nodes. Acquisition results can stream over USB-OTG or Ethernet to a host PC at up to 80 MHz processing throughput. External SRAM is unnecessary at moderate sample rates (under 100 kHz aggregate) thanks to the on-chip 64 KB SRAM, and the 512 KB Flash holds calibration tables.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX675F512L-80V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX675F512L-80I/PT | PIC32MX675F512LT-80V/PT | PIC32MX675F512L-80V/PF | PIC32MX550F256L-I/PT | PIC32MX270F512L-50I/PF | DSPIC33EP256MU810-E/PT |
|---|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (12x12) | 100-pin TQFP (12x12) - same | 100-pin TQFP (12x12) - same | 100-pin TQFP (12x12) - same | 100-pin TQFP (12x12) - same | 100-pin TQFP (12x12) - same | 100-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 40 MHz (-50%) | 50 MHz (-37.5%) | 60 MHz (-25%) |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 256 KB (-50%) | 512 KB | 256 KB (-50%) |
| SRAM | 64 KB | 128 KB (+100%) | 64 KB | 64 KB | 32 KB (-50%) | 32 KB (-50%) | 28 KB (-56%) |
| USB-OTG | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | No | Yes (with PHY) |
| Ethernet MAC | 10/100 MII/RMII | 10/100 MII/RMII | 10/100 MII/RMII | 10/100 MII/RMII | 10/100 RMII | No | No |
| Operating Temperature | -40C to +105C | -40C to +85C (narrower) | -40C to +105C | -40C to +105C | -40C to +85C (narrower) | -40C to +85C (narrower) | -40C to +125C (extended) |
| ADC | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch, 1 Msps | 10-bit, 16-ch | 10-bit, 13-ch | 12-bit, 24-ch |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | dsPIC33 DSP-enhanced |
Key Differentiators
- Integrated USB-OTG with PHY eliminates external bridge ICs (vs DSPIC33EP256MU810-E/PT (dsPIC33 EP family))
- Highest performance 80 MHz MIPS in PIC32MX5 family (vs PIC32MX270F512L-50I/PF (PIC32MX2 family))
- 2.3-3.6 V wide supply tolerance for industrial designs (vs Lower-tier MCUs constrained to 3.0-3.6 V)
- Industrial -40C to +105C temperature grade at standard speed (vs PIC32MX675F512L-80I/PT (-40C to +85C))
Design Notes
Place a 10 uF + 0.1 uF decoupling pair within 3 mm of every VDD pin on the PIC32MX675F512L-80V/PT, and use a 4.7 uF + 0.1 uF combination on AVDD. The part's multiple VDD/AVDD pairs each require their own localized bypass to prevent digital switching noise from coupling into the ADC reference. Layout Tip: route the VDD traces first as power planes or wide short traces, then route other signals around the decoupling network.
Route the 50 MHz external crystal traces on the PIC32MX675F512L-80V/PT as short and symmetric as possible (less than 5 mm typical), guarded by a ground ring or polygon connected to the chip's ground reference. The USB DP/DM traces must be routed as a 90-ohm differential pair with no splits, no stubs, and continuous reference to GND planes. A common pitfall is forget the peripheral-side series resistors on USB; the MCHP datasheet example uses 27-ohm resistors for impedance matching.
Estimated: at max sustained peripheral activity (USB OTG + Ethernet full-duplex + all timers active), the PIC32MX675F512L-80V/PT core dissipates up to ~700 mW internally. The 100-pin TQFP (12x12 mm) provides theta_JA of approximately 38 C/W when soldered to a 4-layer 2 oz PCB with a continuous copper ground pad beneath the chip. For industrial -40C to +105C operation with all peripherals active, a small thermal via array under the copper pour is recommended to keep junction temperature rise below 30 C.
Common pitfalls with PIC32MX675F512L-80V/PT include: (1) failing to configure unused I/O pins as analog or output-low to minimize current draw in Sleep mode; (2) forgetting the FSosc fail-safe clock monitor configuration when using an external crystal; (3) exceeding the 5 V tolerance on any non-5V-tolerant pin (only certain pins are 5V tolerant per the datasheet); (4) not connecting the unused Ethernet MAC pins correctly (RMII requires a 50 MHz reference clock; MII does not). Always re-read the per-pin alternation table before PCB layout.
The PIC32MX675F512L-80V/PT's USB-OTG DP/DM pair must maintain 90-ohm differential impedance with intra-pair skew under 50 ps. Ethernet MII/RMII traces should be no longer than 15 cm and matched within 1 cm between clock and data lines; RMII in particular needs a clean 50 MHz reference clock with sub-50 ps jitter. For multi-board designs, isolate CAN and USB grounds from noisy digital sections to prevent ground bounce from corrupting analog ADC readings near the part's AVDD pin.
Compliance Information
RoHS compliant per Microchip product page. AEC-Q100 not applicable - PIC32MX675F512L-80V/PT is not automotive qualified per Microchip portfolio.
