PIC32MXMX775F512LT-80V/PT - 80MHz 512KB Flash MCU | Microchip
MPN： PIC32MX775F512LT-80V/PT ✓ 啟用中PIC32MX775F512LT-80V/PT 概覽
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory (Flash), working memory (RAM), and programmable I/O peripherals. The PIC32MX family uses the industry-standard MIPS M4K core, placing it in the broader 32-bit MCU taxonomy: MCU -> 32-bit MCU -> MIPS-based MCU -> PIC32MX series. Compared to 8/16-bit MCUs, the 32-bit architecture enables higher computational throughput, larger address space, and richer peripheral integration for connected and multimedia applications.
Key features include 512KB Flash (256K x 8 instructions), 64KB SRAM, 80MHz core clock, 1.56 DMIPS/MHz performance, 10/100 Ethernet MAC, USB 2.0 Full-Speed OTG, two CAN 2.0B controllers, six UART modules, five I2C and four SPI ports, 16-channel 10-bit ADC, and up to 85 GPIO pins depending on package variant. The 100-pin TQFP package provides a generous pin count for multimedia and connectivity designs.
The architecture combines the MIPS M4K core with Microchip's peripheral library and MPLAB Harmony framework, enabling code reuse across PIC32 families. Hardware cryptographic accelerators, DMA, and a parallel master port extend capability for industrial and consumer applications requiring deterministic real-time response.
Typical applications include industrial automation controllers, Ethernet-enabled sensor hubs, automotive body controllers, USB peripherals, and embedded HMI/gateway products. The dual CAN interfaces make it particularly suitable for vehicle network bridge nodes, while Ethernet MAC enables networked factory equipment.
When designing with this device, ensure the MCLR reset circuit and decoupling capacitors match reference schematics; insufficient decoupling can cause instability at 80MHz. The 'V' suffix indicates the -40C to +105C industrial temperature grade, suitable for harsh environments.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with actionable procurement and substitution guidance for the PIC32MX775F512LT-80V/PT.
直接替換替代品，適用於 PIC32MX775F512LT-80V/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC32MX775F512LT-80V/PT （相同外形與佔位） — 差異在於 ADC, Package, CAN, USB, Ethernet.
PIC32MX775F512L-80V/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX775F512HT-80V/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX695F512LT-80V/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX675F512L-80V/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX575F512L-80V/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX764F128LT-V/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX775F512LT-80V/PT 最大額定值與電氣特性
| Core Architecture | MIPS32 M4K |
| Core Data Width | 32-bit |
| 最大時脈頻率 | 80 MHz |
| Performance | 1.56 DMIPS/MHz |
| Program Memory (Flash) | 512 KB (256K x 8 instructions) |
| RAM | 64 KB |
| 供應電壓 | 2.3 V to 3.6 V |
| 工作溫度 | -40C to +105C (V grade) |
| ADC | 10-bit, 16 channels |
| USB | USB 2.0 Full-Speed OTG |
| CAN | 2 x CAN 2.0B |
| Ethernet | 10/100 MAC |
| UART | 6 |
| I2C | 5 |
| SPI | 4 |
| 封裝 | 100-pin TQFP (12x12 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC32MX775F512LT-80V/PT 100-pin tqfp (12x12 mm) 腳位配置指南
PIC32MX775F512LT-80V/PT（100-pin tqfp (12x12 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： PIC32MX775F512LT-80V/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC32MX775F512LT-80V/PT 適用於 7 應用s: Industrial Ethernet Gateway, Automotive CAN Network Bridge, USB-OTG Embedded Device, Industrial HMI Controller, Building Automation Controller, Data Acquisition System, Medical Monitoring Device.
Industrial Ethernet Gateway
The PIC32MX775F512LT-80V/PT's integrated 10/100 Ethernet MAC and 80MHz MIPS M4K core make it well suited for protocol-conversion nodes that translate serial field buses into Modbus TCP, EtherNet/IP, or PROFINET streams. With 512KB Flash it runs full TCP/IP stacks such as MPLAB Harmony Net, and 64KB RAM provides buffer headroom for concurrent sockets. The part's industrial -40C to +105C temperature grade supports factory-floor deployments without thermal conditioning. Pair with an external LAN8720A RMII PHY for a complete Ethernet interface.
推薦
Automotive CAN Network Bridge
With two independent CAN 2.0B controllers and the automotive-grade -40C to +125C variant option, the PIC32MX775F512LT-80V/PT serves as a CAN-CAN or CAN-LIN bridge node for in-vehicle networks. The 80MHz core processes message filtering and gateway routing in real time without processor bottlenecks, while the 16-channel 10-bit ADC reads analog sensors directly. The 100-pin TQFP provides ample GPIO for status LEDs, key inputs, and external sensor I/O. AEC-Q100 qualification is available on the -V automotive part variants.
推薦
USB-OTG Embedded Device
The integrated USB 2.0 Full-Speed OTG controller with on-chip PHY enables the PIC32MX775F512LT-80V/PT to act as USB host, device, or dual-role OTG node without external transceivers. With 512KB Flash and 64KB RAM it runs the USB stack plus application logic in a single chip, ideal for USB data loggers, HID peripherals, or USB-mass-storage bridges. The 80MHz MIPS core handles USB enumeration, class drivers, and bulk transfers efficiently. Use the USBID pin for OTG role detection and add ESD protection (such as USBLC6) on D+/D- lines.
推薦
Industrial HMI Controller
The PIC32MX775F512LT-80V/PT drives small color TFT displays via its parallel master port (PMP) while handling touch input, real-time control, and communication simultaneously. The 10-bit ADC reads analog potentiometers and sensors, while UART/SPI/I2C connect to motor drivers and peripherals. 512KB Flash stores graphics libraries, fonts, and multilingual UI strings. The industrial temperature range supports factory environments with electrical noise and temperature swings.
推薦
Building Automation Controller
Building automation nodes use the PIC32MX775F512LT-80V/PT's combination of Ethernet, USB, six UART, five I2C, and four SPI to interface with sensors, actuators, and BACnet/Modbus networks. The 80MHz core executes scheduling, trend logging, and PID control loops while maintaining network connectivity. The 64KB RAM supports BACnet/IP object databases for HVAC and lighting subsystems. Wide 2.3V-3.6V supply tolerance simplifies power design across building distribution systems.
推薦
Data Acquisition System
The PIC32MX775F512LT-80V/PT's 16-channel 10-bit ADC with DMA support captures multi-channel analog data at high throughput without CPU intervention. Combined with USB-OTG for PC connectivity and Ethernet for networked DAQ, the part forms the core of a USB/Ethernet data acquisition front-end. 512KB Flash stores calibration tables and protocol stacks; 64KB RAM holds sample buffers. The 80MHz MIPS M4K core computes RMS, FFT, and statistical metrics for connected measurement systems.
推薦
Medical Monitoring Device
Medical monitoring peripherals such as pulse oximeters, blood-pressure monitors, and patient-wearable hubs leverage the PIC32MX775F512LT-80V/PT's USB-OTG for charging/data, ADC for sensor readout, and 80MHz core for digital signal processing. The 512KB Flash holds USB class drivers, signal processing libraries, and BLE/WiFi co-processor stacks. The industrial temperature range supports portable medical enclosures. Note: medical safety certification (IEC 60601) requires additional system-level design effort beyond MCU selection.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX775F512LT-80V/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC32MX775F512L-80V/PT | PIC32MX775F512HT-80V/PT | PIC32MX695F512LT-80V/PT | PIC32MX675F512L-80V/PT | PIC32MX575F512L-80V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) | TQFP-100 (12x12 mm) |
| Core 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 |
| RAM | 64 KB | 64 KB | 128 KB | 64 KB | 64 KB | 64 KB |
| USB-OTG | Yes | Yes | Yes | No | No | No |
| CAN | 2 | 2 | 2 | 2 | 1 | 0 |
| Ethernet MAC | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 | No |
| Temperature Grade | -40C to +105C (V) | -40C to +105C (V) | -40C to +105C (V) | -40C to +105C (V) | -40C to +105C (V) | -40C to +105C (V) |
主要差異化特點
- Only PIC32MX5xx family member with USB-OTG plus dual CAN plus Ethernet (對比PIC32MX695F512LT-80V/PT)
- Highest-integration TQFP-100 member with 6 UART + 5 I2C + 4 SPI (對比PIC32MX575F512L-80V/PT)
- Single-chip USB + Ethernet + dual CAN with industrial temperature grade (對比PIC32MX675F512L-80V/PT)
設計說明
Decoupling is critical at 80MHz: place 0.1uF X7R ceramic capacitors as close as possible to every VDD/VSS pin pair, plus a bulk 10uF tantalum or ceramic on each VDD rail. The PIC32MX5/6/7 datasheet recommends one 0.1uF cap per supply pin pair and one 10uF bulk per voltage regulator output. Add a ferrite bead in series with the analog AVDD supply if ADC performance is critical. Place the decoupling caps on the same PCB layer as the MCU with short, direct traces to minimize inductance.
The PIC32MX775F512LT-80V/PT operates from 2.3V to 3.6V with internal 1.8V core regulation. Use a low-noise LDO (such as MCP1700 or MIC29150) for the 3.3V rail, especially for analog-mixed designs. Estimated: at 80MHz with all peripherals active, core current consumption is approximately 60-80mA plus I/O sink/source. Decoupling layout and short return loops to GND determine whether the part runs reliably at full speed. Avoid switching regulators near analog AVDD pins; switching noise couples into ADC readings.
Common design pitfalls include: (1) leaving the MCLR pin floating - it MUST be pulled high through a 10k resistor with optional 100nF cap for delayed reset; (2) omitting the 32.768 kHz or external crystal loading capacitors - use the datasheet's CLOAD formula with stray PCB capacitance included; (3) configuring GPIO as analog by default and forgetting to set TRISB/ANSEL - this can cause bus contention; (4) failing to configure JTAG/debug pins - the part ships with PGC/PGD enabled, blocking those pins for I/O until disabled in code.
The TQFP-100 (12x12 mm) has 0.4 mm pitch traces - use 0.2 mm trace width with 0.2 mm clearance as the design rule. Route high-speed signals (USB D+/D-, RMII Ethernet, SPI clock) with controlled 50 ohm impedance and length matching. Place the external crystal within 5mm of the OSCI/OSCO pins and guard the traces with a GND ring. For Ethernet RMII, length-match CLK and data lines within 50 mil. Avoid routing analog AVDD traces under digital signal layers.
At 80MHz with all peripherals active and 3.3V supply, the TQFP-100 dissipates approximately 200-300 mW. With theta_JA of approximately 45 C/W (TQFP-100, 4-layer PCB), junction temperature rise is 9-13 C above ambient - well within the 125 C junction limit. The V industrial grade supports -40C to +105C ambient. For continuous high-temperature operation (>85C ambient), add copper flooding under the exposed pad-equivalent and thermal vias to a bottom-side copper pour.
合規資訊
RoHS compliant per Microchip product page. Standard PIC32MX775F512LT-80V is industrial grade (-40C to +105C) but not AEC-Q100 qualified. AEC-Q100 automotive qualification is available on specific PIC32MX V variants - verify per-suffix qualification status in Microchip's automotive product selector.
