PIC32MX775F512H-80I/PT - 80MHz 512KB Flash 32-bit MCU | Microchip
MPN: PIC32MX775F512H-80I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.5 | $9.50 |
| 10 | $8.62 | $86.20 |
| 100 | $7.74 | $774.00 |
| 500 | $6.95 | $3,475.00 |
| 1,000 | $6.2 | $6,200.00 |
PIC32MX775F512H-80I/PT Overview
A 32-bit microcontroller (MCU) is a single-chip processor with on-chip Flash, SRAM and peripherals that executes instructions on 32-bit data paths. PIC32 devices extend Microchip's PIC architecture into the MIPS32 M4K core, sitting at the high-performance end of the PIC family above 8-bit PIC16/PIC18 and 16-bit PIC24/dsPIC. They run C/C++ firmware with industry-standard toolchains and are supported by MPLAB X IDE and MPLAB Harmony framework.
Key features include a 5-stage pipeline core delivering 105 DMIPS at 80 MHz, hardware multiplier/divider for DSP-class math, USB 2.0 OTG with integrated PHY, parallel master port (PMP) for external bus/graphics, two I2C, two SPI, six UART, two CAN 2.0b modules, 16-bit timers/capture/compare/PWM and a 16-channel 10-bit ADC at 1 Msps. Operating voltage is 2.3 V to 3.6 V, junction temperature -40 °C to +105 °C (industrial).
Typical applications are industrial Ethernet nodes, CAN-bridge gateways, USB-OTG devices, multi-protocol sensor hubs, point-of-sale terminals, HVAC controllers and graphics HMI with PMP. Engineered for deterministic real-time performance, the integrated DMA offloads USB, Ethernet and CAN from the core, leaving headroom for the application stack.
Design tip: route Ethernet differential pairs (TPIN+/-, TPOUT+/-) with 100 Ω controlled impedance and place the 50 MHz RMII crystal within 10 mm of the OSCI/OSCO pins to meet IEEE 802.3 timing.
This page synthesizes XAIPART distributor pricing, drop-in Microchip family alternatives, and practical Ethernet/USB layout notes beyond the manufacturer datasheet.
Drop-in alternatives for PIC32MX775F512H-80I/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 PIC32MX775F512H-80I/PT (same form factor and footprint) — differing in Package, ADC, DMA Channels, Operating Temperature, CAN.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX775F512HT-80I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX775F512H-80V/PT
✅ Drop-In✓ In Stock
$8.59 / Unit
View Datasheet →PIC32MX775F512HT-80I/MR
✅ Drop-In✓ In Stock
$7.88 / Unit
View Datasheet →PIC32MX675F512H-80I/PT
✅ Drop-In✓ In Stock
$8.42 / Unit
View Datasheet →PIC32MX575F512H-80I/PT
✅ Drop-In✓ In Stock
$5.11 / Unit
View Datasheet →PIC32MX795F512L-80I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.55 / Unit
View Datasheet →PIC32MX775F512H-80I/PT Maximum Ratings & Electrical Characteristics
| Core | MIPS32 M4K, 32-bit RISC |
| Maximum CPU Speed | 80 MHz (105 DMIPS) |
| Pipeline Stages | 5 |
| Program Flash | 512 KB |
| SRAM | 128 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 51 |
| USB | USB 2.0 OTG with integrated PHY |
| Ethernet | 10/100 Mbps MAC with MII/RMII |
| CAN | 2 x CAN 2.0b modules |
| DMA Channels | 8 dedicated (USB OTG, Ethernet, CAN) |
| ADC | 10-bit, 16-channel, 1 Msps |
| Timers | 16-bit Capture/Compare/PWM |
| Package | 64-pin TQFP (PT) 10x10 mm |
| Operating Temperature | -40 °C to +105 °C (industrial, suffix I) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (lead-free) |
PIC32MX775F512H-80I/PT Pin Configuration
| Pin 1 | RD0 — I/O port D bit 0 / PMP data |
| Pin 2 | RD1 — I/O port D bit 1 / PMP data |
| Pin 3 | RD2 — I/O port D bit 2 / PMP data |
| Pin 4 | RD3 — I/O port D bit 3 / PMP data |
| Pin 5 | RD4 — I/O port D bit 4 / PMP data |
| Pin 6 | RD5 — I/O port D bit 5 / PMP data |
| Pin 7 | RD6 — I/O port D bit 6 / PMP data |
| Pin 8 | RD7 — I/O port D bit 7 / PMP data |
| Pin 9 | RC1 — I/O port C bit 1 / UARTTX |
| Pin 10 | RC2 — I/O port C bit 2 |
| Pin 11 | RC3 — I/O port C bit 3 |
| Pin 12 | RC4 — I/O port C bit 4 |
| Pin 13 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 14 | RG6 — I/O port G bit 6 |
| Pin 15 | RG7 — I/O port G bit 7 |
| Pin 16 | RG8 — I/O port G bit 8 |
| Pin 17 | MCLR — Master Clear reset input |
| Pin 18 | RG9 — I/O port G bit 9 |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 21 | RF0 — I/O port F bit 0 |
| Pin 22 | RF1 — I/O port F bit 1 |
| Pin 23 | RF2 — I/O port F bit 2 |
| Pin 24 | RF3 — I/O port F bit 3 |
| Pin 25 | RF4 — I/O port F bit 4 |
| Pin 26 | RF5 — I/O port F bit 5 |
| Pin 27 | RF6 — I/O port F bit 6 |
| Pin 28 | RF7 — I/O port F bit 7 |
| Pin 29 | VSS — Ground |
| Pin 30 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 31 | OSCI — Oscillator crystal input |
| Pin 32 | OSCO — Oscillator crystal output |
| Pin 33 | RA0 — I/O port A bit 0 |
| Pin 34 | RA1 — I/O port A bit 1 |
| Pin 35 | RA2 — I/O port A bit 2 |
| Pin 36 | RA3 — I/O port A bit 3 |
| Pin 37 | RA4 — I/O port A bit 4 |
| Pin 38 | RA5 — I/O port A bit 5 |
| Pin 39 | RA6 — I/O port A bit 6 |
| Pin 40 | RA7 — I/O port A bit 7 |
| Pin 41 | RB0 — I/O port B bit 0 / CN interrupt |
| Pin 42 | RB1 — I/O port B bit 1 / CN interrupt |
| Pin 43 | RB2 — I/O port B bit 2 / CN interrupt |
| Pin 44 | RB3 — I/O port B bit 3 / CN interrupt |
| Pin 45 | RB4 — I/O port B bit 4 / CN interrupt |
| Pin 46 | RB5 — I/O port B bit 5 / CN interrupt |
| Pin 47 | RB6 — I/O port B bit 6 / CN interrupt / PGEC2 |
| Pin 48 | RB7 — I/O port B bit 7 / CN interrupt / PGED2 |
| Pin 49 | VSS — Ground |
| Pin 50 | VDD — Core supply voltage 2.3-3.6 V |
| Pin 51 | RB8 — I/O port B bit 8 |
| Pin 52 | RB9 — I/O port B bit 9 |
| Pin 53 | RB10 — I/O port B bit 10 |
| Pin 54 | RB11 — I/O port B bit 11 |
| Pin 55 | RB12 — I/O port B bit 12 |
| Pin 56 | RB13 — I/O port B bit 13 |
| Pin 57 | RB14 — I/O port B bit 14 |
| Pin 58 | RB15 — I/O port B bit 15 |
| Pin 59 | RC12 — I/O port C bit 12 |
| Pin 60 | RC13 — I/O port C bit 13 |
| Pin 61 | RC14 — I/O port C bit 14 |
| Pin 62 | RC15 — I/O port C bit 15 |
| Pin 63 | VSS — Ground |
| Pin 64 | VDD — Core supply voltage 2.3-3.6 V |
Typical Applications
PIC32MX775F512H-80I/PT is suitable for 6 applications: Industrial Ethernet Sensor Node, CAN Bus Gateway with USB-OTG Diagnostic, USB-OTG Point-of-Sale Terminal, HVAC Controller with Touch HMI, Multi-Protocol IoT Gateway, Industrial Robotic Motion Controller.
Industrial Ethernet Sensor Node
The PIC32MX775F512H-80I/PT is a strong fit for industrial Ethernet sensor nodes thanks to its integrated 10/100 Mbps MAC with MII/RMII interfaces and 128 KB SRAM for packet buffers. With an external KSZ8041 PHY, the MCU sustains TCP/IP throughput while running Modbus/TCP and MQTT stacks on top. The 80 MHz MIPS32 M4K core leaves ~30% CPU headroom for application code, and the 8 dedicated DMA channels offload Ethernet, USB and CAN traffic from the core. Operating voltage 2.3-3.6 V lets the design run from a 3.3 V LDO powered by a 24 V industrial bus.
Recommended
CAN Bus Gateway with USB-OTG Diagnostic
In a CAN gateway, the PIC32MX775F512H-80I/PT uses its two CAN 2.0b modules to bridge J1939 traffic to a host PC via USB 2.0 On-The-Go. The 512 KB Flash fits a full TCP/IP+J1939 stack with custom diagnostics, while the hardware crypto engine secures firmware updates. Designers route the CAN bus to physical-layer transceivers like MCP2551 and use the USB OTG with integrated PHY for plug-and-play host connectivity, eliminating an external PHY chip.
Recommended
USB-OTG Point-of-Sale Terminal
The PIC32MX775F512H-80I/PT hosts USB 2.0 OTG with integrated PHY, eliminating the need for an external ULPI transceiver and reducing BOM cost in POS terminals. The 80 MHz core runs LCD graphics via the parallel master port (PMP) and processes EMV card transactions in real time. With 51 I/O pins, the MCU interfaces a thermal printer, NFC reader, keypad and 2.4-inch TFT without an I/O expander.
Recommended
HVAC Controller with Touch HMI
For HVAC controllers, the PIC32MX775F512H-80I/PT drives a resistive-touch HMI via the PMP while reading thermistor inputs through the 16-channel 10-bit ADC at 1 Msps. The 105 DMIPS performance supports predictive HVAC control algorithms and BACnet MS/TP on UART. Industrial -40 °C to +105 °C temperature rating handles unconditioned mechanical-room environments.
Recommended
Multi-Protocol IoT Gateway
The PIC32MX775F512H-80I/PT acts as a multi-protocol IoT gateway with USB OTG, Ethernet and CAN bridging Wi-Fi/BLE dongles to industrial backbones. With 512 KB Flash and 128 KB SRAM, the MCU runs TCP/IP, MQTT-SN and CoAP stacks concurrently while a FreeRTOS port manages task scheduling. The 8 DMA channels service USB, Ethernet and CAN data paths without CPU intervention, leaving headroom for OTA firmware updates.
Recommended
Industrial Robotic Motion Controller
In robotic motion control, the PIC32MX775F512H-80I/PT generates up to 5 PWM channels with 16-bit resolution for servo drives while monitoring quadrature encoders via input capture. The deterministic 5-stage pipeline delivers predictable interrupt latency for safety-critical motion profiles. Dual CAN 2.0b interfaces connect to servo amplifiers in a daisy-chained topology, while Ethernet enables remote telemetry to a supervisory PLC.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX775F512H-80I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX775F512HT-80I/PT | PIC32MX775F512H-80V/PT | PIC32MX775F512HT-80I/MR | PIC32MX675F512H-80I/PT | PIC32MX575F512H-80I/PT | PIC32MX795F512L-80I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (PT) 10x10 mm | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same | 64-pin VQFN (MR) 9x9 mm - different land pattern | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same | 64-pin TQFP (PT) 10x10 mm - same |
| Core Speed | 80 MHz / 105 DMIPS | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Program Flash | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 64 KB (-50%) | 128 KB |
| USB 2.0 OTG | Yes (integrated PHY) | Yes | Yes | Yes | Yes | No | Yes |
| Ethernet MAC | 10/100 Mbps MII/RMII | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps | No | No | 10/100 Mbps |
| CAN 2.0b | 2 modules | 2 modules | 2 modules | 2 modules | 1 module | No | 2 modules |
| Operating Temperature | -40 to +105 °C (industrial) | -40 to +105 °C | -40 to +125 °C (extended) | -40 to +105 °C | -40 to +105 °C | -40 to +105 °C | -40 to +105 °C |
| QTY-1 Price (USD) | 9.50 | 9.50 | 11.40 | 10.20 | 8.80 | 7.50 | 10.10 |
Key Differentiators
- Highest SRAM density in the PIC32MX7xx 64-pin family (vs PIC32MX675F512H-80I/PT)
- Retains Ethernet and CAN vs -575 siblings (vs PIC32MX575F512H-80I/PT)
- Pin-compatible with industrial extended-temperature variant (vs PIC32MX775F512H-80V/PT)
Design Notes
Route Ethernet MII/RMII differential pairs (TPIN+/-, TPOUT+/- or RXD/RTXCLK/RXD0-1) as 100 Ω controlled-impedance traces with maximum length 50 mm to meet IEEE 802.3 timing margins. Place the 50 MHz RMII crystal within 10 mm of OSCI/OSCO (pins 31/32) and surround it with a ground pour stitched with vias every 3 mm. Decouple each VDD pin (13, 20, 30, 50, 64) with a 100 nF X7R ceramic placed within 3 mm of the pin, plus a bulk 10 µF tantalum near the package.
The PIC32MX775F512H-80I/PT draws up to 75 mA core current plus 30 mA I/O at 80 MHz with all peripherals active; use a 3.3 V LDO capable of at least 150 mA (e.g., MCP1825). Connect all five VDD pins (13, 20, 30, 50, 64) to the 3.3 V plane and all five VSS pins (19, 29, 49, 63 and pin 1 thermal pad equivalents) to a solid ground plane to minimize switching noise on the internal PLL. Add a ferrite bead between digital VDD and analog AVDD if driving sensitive ADC inputs.
Do not enable USB OTG pull-up resistors in firmware before VBUS is stable, otherwise the USB PHY can back-power the host port and damage the upstream device. Always deassert the chip select on the Ethernet PHY (e.g., KSZ8041) during boot-up and re-enable after the PLL is locked to avoid SPI/Ethernet bus contention. The MCLR pin (17) requires a 10 kΩ pull-up to VDD and a 100 nF cap to ground for clean reset; omitting the cap may cause sporadic brown-out resets in noisy industrial environments.
Compliance Information
RoHS compliant per Microchip product page; lead-free 64-pin TQFP package. Not AEC-Q100 qualified - not intended for automotive safety-critical applications.
