PIC32MX575F256LT-80V/PT - 80MHz 256KB Flash 32-bit MCU | Microchip
MPN： PIC32MX575F256LT-80V/PT ✓ 啟用中PIC32MX575F256LT-80V/PT 概覽
A microcontroller (MCU) is a single-chip computer containing a CPU core, program and data memory, and integrated peripherals including ADCs, timers, and communication controllers. The PIC32MX5XX/6XX/7XX family sits in the hierarchy as: microcontroller -> embedded computing -> semiconductor, and bridges 8-bit PIC16/PIC18 simplicity with 32-bit performance, targeting USB/CAN-enabled industrial, medical, and consumer devices.
Key features of the PIC32MX575F256LT-80V/PT include 83 general-purpose I/O lines, 16-channel 10-bit ADC at 1 Msps, multiple DMA channels for low-CPU-overhead data movement, hardware RTCC, 5 timer/counter modules, and peripheral pin select (PPS) for flexible signal routing. The "V" suffix denotes the V-temp grade of -40C to +105C operation, suitable for industrial environments; the "T" denotes tape-and-reel packaging; and the "/PT" denotes the 100-pin TQFP package.
Architecturally, the PIC32MX575 uses the MIPS32 M4K core with 5-stage pipeline, single-cycle multiply, and hardware divide. It supports 32-bit instructions and 32-bit data paths while remaining code-compatible with legacy 16-bit PIC instruction extensions. The M4K core combined with tightly-coupled DMA offloads data transfers from the CPU for deterministic latency.
Typical applications include USB peripherals (HID, CDC, mass storage), CAN-connected industrial nodes, motor control (BLDC, stepper, servo), graphical HMI with external LCD controllers, and sensor data acquisition. The integrated USB-OTG and CAN make it especially suitable for industrial automation, medical instrumentation, and automotive body/comfort subsystems.
When designing with this part, mind the 2.3V-3.6V supply range and ensure decoupling caps are placed per the datasheet. PPS requires careful pin mapping during firmware bring-up; verify PPS assignments in code review to avoid silent peripheral failures. This page consolidates distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 PIC32MX575F256LT-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： PIC32MX575F256LT-80V/PT （相同外形與佔位） — 差異在於 Package, ADC, DMA Channels, CAN, Core Architecture.
PIC32MX575F256L-80V/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX575F256LT-80I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX575F256LT-80V/BG
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX575F256LT-80V/PF
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX575F256L-80I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC32MX575F256L-80I/PF
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC32MX575F256L-80I/BG
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX575F256L-80V/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX575F256LT-80V/PT 最大額定值與電氣特性
| Core Architecture | MIPS32 M4K |
| 資料匯流排寬度 | 32-bit |
| Maximum CPU Speed | 80 MHz |
| Program Memory (Flash) | 256 KB |
| Data SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Operating Temperature Range (V grade) | -40 C to +105 C |
| 封裝 | 100-pin TQFP (12x12 mm) |
| 安裝類型 | Surface Mount |
| General Purpose I/O | 83 |
| ADC | 10-bit, 16-channel, 1 Msps |
| Communication Interfaces | USB-OTG, CAN, UART, I2C, SPI |
| DMA Channels | Yes (multiple) |
| Timer/Counter Modules | 5 |
| Peripheral Pin Select (PPS) | Yes |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC32MX575F256LT-80V/PT 100-pin tqfp (12x12 mm) 腳位配置指南
PIC32MX575F256LT-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： PIC32MX575F256LT-80V/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC32MX575F256LT-80V/PT 適用於 6 應用s: USB Industrial Sensor Hub, CAN-Connected Motor Controller, Medical Point-of-Care Device, Automotive Body Control Module, Graphical HMI with External LCD, USB Data Acquisition Module.
USB Industrial Sensor Hub
The PIC32MX575F256LT-80V/PT's integrated USB-OTG full-speed controller and 83 GPIO make it ideal for industrial USB sensor hubs. The 256 KB Flash supports USB stack plus application code; the 80 MHz MIPS M4K core handles enumeration and data transfer with low CPU overhead. Placed as the bridge between upstream USB host and downstream I2C/SPI sensors, with the 10-bit ADC at 1 Msps handling analog sensor channels.
推薦
CAN-Connected Motor Controller
The PIC32MX575F256LT-80V/PT combines an integrated CAN controller with 5 timer/counter modules and DMA, suiting BLDC and stepper motor control. The 80 MHz core drives FOC algorithms while CAN bus handles real-time command exchange; the 16-channel 10-bit ADC samples back-EMF and current sensing. V-temp grade (-40C to +105C) supports industrial motor enclosures.
推薦
Medical Point-of-Care Device
The PIC32MX575F256LT-80V/PT fits medical point-of-care instruments requiring USB connectivity for data upload, plus deterministic ADC sampling for diagnostic sensors. The 256 KB Flash enables USB CDC/HID stacks alongside application logic; PPS allows flexible PCB routing on dense medical boards. The integrated DMA offloads ADC-to-memory transfers for accurate signal acquisition.
推薦
Automotive Body Control Module
The PIC32MX575F256LT-80V/PT's CAN interface, V-temp grade, and 83 GPIO suit body control modules for lighting, mirrors, and comfort subsystems. The 64 KB SRAM handles CAN message buffering and PWM generation for LED drivers; the 5 timers generate PWM outputs for motors and dimming. V-temp (-40C to +105C) supports cabin and engine-bay-adjacent environments.
推薦
Graphical HMI with External LCD
The PIC32MX575F256LT-80V/PT drives graphical HMIs through SPI or parallel interfaces to external LCD controllers, leveraging 80 MHz throughput for smooth UI rendering. The 256 KB Flash stores UI assets and fonts; PPS allows flexible mapping of display control signals. Multiple DMA channels manage background refresh without CPU intervention, supporting up to 320x240 QVGA panels.
推薦
USB Data Acquisition Module
The PIC32MX575F256LT-80V/PT is well-suited for USB-connected data acquisition modules where the 16-channel 10-bit ADC at 1 Msps handles multi-channel analog input. The integrated USB-OTG streams acquisition data to a host PC; DMA channels transfer ADC samples to USB endpoints with minimal CPU load. V-temp grade supports industrial test and measurement environments.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX575F256LT-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 | PIC32MX575F256L-80V/PT | PIC32MX575F256LT-80I/PT | PIC32MX575F256LT-80V/BG | PIC32MX575F256L-80V/PF |
|---|---|---|---|---|---|
| Package | TQFP-100 (PT, 12x12 mm) | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same | TQFP-100 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit |
| Maximum CPU Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash / SRAM | 256 KB / 64 KB | 256 KB / 64 KB | 256 KB / 64 KB | 256 KB / 64 KB | 256 KB / 64 KB |
| Temperature Grade | V (-40C to +105C) | V (-40C to +105C) | I (-40C to +85C) | V (-40C to +105C) | V (-40C to +105C) |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tray |
| Integrated USB-OTG | Yes | Yes | Yes | Yes | Yes |
| Integrated CAN | Yes | Yes | Yes | Yes | Yes |
主要差異化特點
- V-temp grade operation up to +105C (對比PIC32MX575F256LT-80I/PT)
- Tape-and-reel packaging for SMT production (對比PIC32MX575F256L-80V/PT)
- Pin-compatible upgrade path to PIC32MX570 family (對比PIC32MX570F512LT-V/PT)
設計說明
Decouple all VDD/AVDD pins with 100 nF ceramic caps placed as close to the pins as possible (per Microchip datasheet DS60001156K). Add a single 10 uF bulk tantalum or ceramic cap on each major supply rail. The PIC32MX575 has multiple VDD pins; missing any one can cause intermittent resets or ADC accuracy degradation. Place an LC or ferrite bead on analog AVDD to isolate from digital switching noise.
Peripheral Pin Select (PPS) mapping must be configured in firmware before using remappable digital peripherals. A peripheral assigned to an unmapped pin will appear silent - no error, no output. Always declare PPS mappings at startup and verify them in code review. Also note that analog functions bypass PPS and must be wired to dedicated analog pins.
The 100-pin TQFP has a 0.4 mm pitch requiring careful PCB layout. Use 4-layer stack-up with continuous ground plane under the MCU to provide reference for high-speed signals and thermal dissipation. USB D+/D- traces must be 90 ohm differential with matched length; route over an unbroken ground plane to maintain impedance.
The 80 MHz system clock generates harmonics up to 400+ MHz. Keep clock traces short and shielded with ground vias. If using external crystal, place the load caps within 3 mm of the OSC1/OSC2 pins and keep the crystal case grounded. Avoid routing high-speed signals (USB, SPI at >10 MHz) under the MCU or near the ADC inputs.
合規資訊
RoHS and REACH compliance per Microchip product page; AEC-Q100 qualification status not stated in available data; halogen-free status unknown from verified data.
