PIC32MX575F256LT-80I/PT - 32-bit 80MHz MCU 256KB Flash USB CAN | Microchip
MPN： PIC32MX575F256LT-80I/PT ✓ 啟用中PIC32MX575F256LT-80I/PT 概覽
An MCC product line is a class of high-performance microcontrollers built around the MIPS32 M4K core, designed for embedded applications that require more processing power than 8/16-bit MCUs while retaining peripheral integration. The PIC32MX5/6/7XX family supports USB, CAN, and Ethernet connectivity, suiting industrial, consumer, and automotive subsystems where deterministic interrupt latency and a rich peripheral set are required.
Key features include 256KB Flash (256K x 8), 64KB RAM, 85 I/O pins, and 16-channel 10-bit ADC. The device integrates USB OTG full-speed, one CAN module, SPI, I2C, and UART. DMA, PMP, and a 5-bit RTCC are also present, and the part runs from 2.3V to 3.6V across the industrial -40C to +85C range.
Architecturally the M4K core delivers 1.56 DMIPS/WMC with single-cycle bit-shaded math and hardware multiply/divide, easing protocol parsing and DSP-style loops. Five 16-bit timers/capture/compare and two comparators/PWM modules complement the timers, allowing closed-loop motor and power-conversion control. Code execution is from Flash with a prefetch module that hides Flash access latency.
Typical applications include industrial automation, USB peripherals, automotive CAN nodes, and graphic display HMIs. The wide peripheral mix also suits barcode scanners, point-of-sale terminals, and home medical monitors. The PIC32MX575F256LT-80I/PT is supported by MPLAB X IDE, XC32 compiler, and PICkit 5 debugger.
For power, plan decoupling at each VDD/VSS pair and route the analog AVdd/AVss pair through a ferrite to reduce ADC noise.
This page combines current distributor pricing, drop-in alternatives within the PIC32MX5XX family, and engineering design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 PIC32MX575F256LT-80I/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-80I/PT （相同外形與佔位） — 差異在於 ADC, Package, DMA Channels, Program Memory (Flash), CAN Interface.
PIC32MX575F256L-80I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX575F256LT-80I/PF
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX675F256L-80I/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX564F128LT-I/PT
✅ 直接替換聯絡詢價
查看資料表 →PIC32MX575F256L-80V/PT
✅ 直接替換📋 參考替代品（不在目錄中）
PIC32MX575F256HT-80I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC32MX575F256LT-80I/PT 最大額定值與電氣特性
| Core | MIPS32 M4K |
| Core Size | 32-Bit |
| Maximum Clock Speed | 80 MHz |
| Program Memory Size | 256 KB (256K x 8) Flash |
| RAM Size | 64 KB (64K x 8) |
| 工作電源電壓 | 2.3 V to 3.6 V |
| Number of I/O | 85 |
| Connectivity | CAN, I2C, SPI, UART/USART, USB OTG |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| ADC | 16-channel 10-bit |
| 資料匯流排寬度 | 32-bit |
| 工作溫度 | -40 C to +85 C (Industrial) |
| 安裝類型 | Surface Mount |
| 封裝 | 100-TQFP (12x12 mm) |
| RoHS 狀態 | Compliant |
| MSL 等級 | 3 |
| Series | PIC32MX5XX/6XX/7XX |
PIC32MX575F256LT-80I/PT 100-tqfp (12x12 mm) 腳位配置指南
PIC32MX575F256LT-80I/PT（100-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-80I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
PIC32MX575F256LT-80I/PT 適用於 6 應用s: Industrial Automation Controllers, USB Peripheral Devices, Automotive CAN Nodes, Graphic Display HMIs, Medical Monitoring Devices, Point-of-Sale Terminals.
Industrial Automation Controllers
The PIC32MX575F256LT-80I/PT fits industrial PLC and motor-drive controllers thanks to its 80MHz MIPS32 M4K core delivering 1.56 DMIPS/MHz and the integrated CAN 2.0B module running at 1 Mbit/s for fieldbus comms. The 16-channel 10-bit ADC samples 4-wire sensor inputs at up to 500 ksps, while five 16-bit timers drive PWM outputs for variable-frequency drives. 256KB Flash holds IEC 61131-3 runtime plus custom ladder logic, and 64KB RAM buffers MODBUS and EtherNet/IP packets. Hardware DMA offloads encoder counting from the CPU. The -40C to +85C industrial temperature range supports cabinet-mounted use.
推薦
USB Peripheral Devices
The PIC32MX575F256LT-80I/PT's full-speed USB OTG controller makes it a strong fit for USB peripherals such as barcode scanners, HID input devices, and USB-to-CAN bridges. The integrated USB OTG supports device, host, and OTG roles without an external PHY, saving BOM cost. With 256KB Flash and 64KB RAM, the MCU can host USB stacks, vendor class drivers, and dual-role HID + vendor interfaces concurrently. DMA channels manage USB endpoint packets with minimal CPU load. The 12x12mm TQFP-100 footprint fits compact handheld enclosures.
推薦
Automotive CAN Nodes
The PIC32MX575F256LT-80I/PT powers automotive CAN nodes such as body controllers, HVAC panels, and instrument clusters via its integrated CAN 2.0B module and 85 GPIO lines for switches, LEDs, and relay drivers. The 80MHz core processes OBD-II and UDS stacks within 256KB Flash, while 64KB RAM buffers diagnostic messages. Hardware acceptance filters reduce CAN interrupt load. The industrial -40C to +85C operating range covers cabin and under-hood-cowl mounting. CAN bit times up to 1 Mbit/s suit CAN-FD transitional designs.
推薦
Graphic Display HMIs
The PIC32MX575F256LT-80I/PT drives small TFT LCD graphic HMIs in appliances, point-of-sale terminals, and industrial control panels via its Parallel Master Port (PMP) interface, DMA, and 80MHz CPU throughput. 256KB Flash stores menu assets, fonts, and UI logic, while 64KB RAM holds framebuffers up to 320x240 at 16-bit color. SPI and I2C peripherals expand to touch controllers and EEPROMs. Five 16-bit timers manage backlight PWM and key-scan cycles. The 85 GPIO drive character LCDs directly when PMP is not used.
推薦
Medical Monitoring Devices
The PIC32MX575F256LT-80I/PT fits portable medical monitoring devices such as pulse oximeters, blood-pressure cuffs, and home-care hubs thanks to its 16-channel 10-bit ADC for sensor front-ends, USB OTG for charging and data sync, and 80MHz MIPS core for signal processing. 256KB Flash holds FDA-validated firmware, while 64KB RAM buffers waveform data before Bluetooth/USB upload. The 2.3V-3.6V range supports direct Li-ion battery operation. Hardware DMA keeps ADC sample streams moving without CPU intervention.
推薦
Point-of-Sale Terminals
The PIC32MX575F256LT-80I/PT's decision engine in compact point-of-sale terminals with credit card readers, thermal heads, and Ethernet backhaul. Per Lin (2024). USB OTG + CAN + 80MHz handle card encryption and dual-NIC stacks. 256KB Flash and 64KB RAM fit TLS, mag-stripe, and EMV libraries. The 85 GPIO drive keypads, displays, and thermal printers via PMP. Industrial -40C to +85C supports retail freezers and outdoor kiosks.
推薦
推薦產品摘要
工程參考資料，適用於 PIC32MX575F256LT-80I/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-80I/PT | PIC32MX575F256LT-80I/PF | PIC32MX675F256L-80I/PT | PIC32MX564F128LT-I/PT | PIC32MX575F256L-80V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (14x14 mm) - same silicon, larger pkg | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| USB OTG | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) | Yes (FS) |
| CAN | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B |
| Ethernet | No | No | No | Yes (10/100 MAC) | No | No |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +105C (V) |
主要差異化特點
- Tape-and-reel packaging for high-volume SMT assembly (對比PIC32MX575F256L-80I/PT (tray))
- Compact 12x12mm TQFP-100 package saves PCB area (對比PIC32MX575F256LT-80I/PF (14x14mm TQFP-100))
- Full PIC32MX575 superset compatibility with /675 Ethernet option (對比PIC32MX675F256L-80I/PT)
設計說明
Place 100nF ceramic bypass caps at every VDD/VSS pin pair, with additional 10uF bulk caps at the analog AVDD/AVSS rails. Route AVSS directly to a clean ground island to keep ADC noise below 1 LSB. Brown-out reset (BOR) is enabled by default to prevent corrupted Flash writes below 2.3V.
Route the 80MHz MIPS32 clock trace over a continuous ground plane, keep clock trace to <25mm, and series-terminate the 8MHz crystal load capacitors close to the OSC1/OSC2 pins. Place the USB D+/D- pair as a 90-ohm differential microstrip and route parallel within 0.15mm tolerance to meet USB 2.0 FS signal-integrity.
The PIC32MX575F256L family requires a 4-cycle Flash prefetch wait state at 80MHz - failure to enable this in the system register (CHECON<PFMWAIT>) causes subtle code-fetch errors. Also configure the peripheral bus divider (CHECON<PBDIV>) at the system frequency / 4 default for peripheral access at 20MHz. Missing these settings is the #1 cause of 'works in debugger but not standalone' issues.
Use separate analog and digital ground islands with a single-point tie at the MCU AVSS pin. Keep ADC traces away from switching power and PWM traces by at least 3mm. Place the 32.768kHz secondary oscillator (SOSC) load caps close to SOSCI/SOSCO. Use guard rings around the analog AVSS connection to suppress digital switching noise injection.
合規資訊
RoHS compliant per Microchip product page. Industrial temperature grade - not AEC-Q100 qualified; choose /V (extended temp) variants for harsh thermal environments. Lead-free reflow profile per JEDEC J-STD-020.
