PIC32MX675F512L-80I/PT - 80MHz 32-bit MCU, 512KB Flash | Microchip
料号： PIC32MX675F512L-80I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.45 | $745.00 |
| 500 | $6.28 | $3,140.00 |
| 1,000 | $5.42 | $5,420.00 |
PIC32MX675F512L-80I/PT 概述
A 32-bit microcontroller (MCU) is an integrated circuit containing a CPU core, program memory (typically Flash), data memory (SRAM), and programmable peripherals (UART, I2C, SPI, ADC, timers, and I/O pins) on a single die. 32-bit MCUs are members of the broader microcontroller family within the semiconductor hierarchy (MCU -> microcontroller -> embedded processor -> semiconductor). The PIC32MX family specifically leverages a MIPS M4K core with a 5-stage pipeline and Harvard architecture, executing up to 1.58 DMIPS/MHz while supporting the MIPS16e instruction set for 40% smaller code size compared to standard MIPS code.
Key features of the PIC32MX675F512L include 85 programmable I/O pins, 16-channel 10-bit ADC (1 Msps), 8 DMA channels (4 dedicated to USB OTG), 5 timers (five 16-bit), 2 comparators, 2 I2C, 4 SPI, 6 UART, and a Parallel Master Port (PMP). The integrated 10/100 Ethernet MAC supports both MII and RMII interfaces, eliminating the need for an external PHY companion chip. Supply voltage ranges from 2.3V to 3.6V, making it compatible with 3.3V system designs.
Architecturally, the device employs a 5-stage pipeline with branch prediction, separate instruction and data buses (Harvard architecture), and dedicated DMA channels to offload peripheral data movement from the CPU. The USB OTG peripheral integrates the physical layer (PHY), reducing BOM cost and PCB area versus discrete PHY solutions.
Typical applications include industrial automation controllers, Ethernet-enabled IoT gateways, USB device peripherals, automotive telematics modules, and graphic HMI displays using the PMP interface. Designers choose the PIC32MX675F512L when they need Ethernet + USB + CAN connectivity in a single chip without external PHY/bridge ICs.
When designing with this device, ensure proper decoupling with 100nF ceramic capacitors near each supply pin, and follow Microchip's application notes for Ethernet MII/RMII trace routing to maintain signal integrity. Use the MPLAB Harmony framework for firmware development, which provides pre-validated peripheral libraries, USB stacks, and TCP/IP networking components.
This page synthesizes distributor pricing, drop-in compatible PIC32 family alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC32MX675F512L-80I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC32MX675F512L-80I/PT （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, DMA Channels, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
PIC32MX795F512L-80I/PT
✅ 直接替换✓ 有现货
$7.55 / 个
查看数据手册 →PIC32MX775F512L-80I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX695F512L-80I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX675F512L-80I/PF
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX675F512L-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC32MX675F512L-80I/PT 最大额定值与电气特性
| Core Architecture | MIPS32 M4K, 32-bit single-core |
| 最大时钟频率 | 80 MHz |
| Performance | 105 DMIPS (1.58 DMIPS/MHz) |
| Flash Program Memory | 512 KB (512K x 8) |
| SRAM Data Memory | 64 KB |
| Supply Voltage (Vcc/Vdd) | 2.3 V to 3.6 V |
| Number of I/O Pins | 85 |
| ADC | 10-bit, 16-channel, 1 Msps |
| DMA Channels | 8 (4 dedicated to USB OTG) |
| Timers | 5 x 16-bit |
| Comparators | 2 |
| Communication Interfaces | 2x CAN, 5x I2C, 4x SPI, 6x UART, USB 2.0 OTG |
| Ethernet | 10/100 Mbit MAC with MII/RMII |
| USB | USB 2.0 On-The-Go with integrated PHY |
| 封装 | 100-pin TQFP (PT), 12x12 mm |
| 工作温度 | -40C to +85C (Industrial, -I suffix) |
| MSL 等级 | 3 (168 hours) |
| RoHS 状态 | Compliant (lead-free) |
PIC32MX675F512L-80I/PT 100-pin tqfp (pt), 12x12 mm 引脚配置指南
PIC32MX675F512L-80I/PT（100-pin tqfp (pt), 12x12 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： PIC32MX675F512L-80I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PIC32MX675F512L-80I/PT 适用于 6 应用s: Industrial Ethernet Gateway, USB Device/Host Peripheral, CAN-Bus Automotive Telematics, Graphic HMI Display Controller, IoT Edge Sensor Hub, Audio Streaming Device.
Industrial Ethernet Gateway
The PIC32MX675F512L-80I/PT's integrated 10/100 Mbit Ethernet MAC with MII/RMII interface makes it ideal for industrial protocol gateway applications such as Modbus TCP, EtherNet/IP, or PROFINET slave devices. Operating at 80MHz with 105 DMIPS, the MIPS M4K core handles TCP/IP stack overhead plus application logic with room to spare. The 512KB Flash accommodates the full Microchip Harmony TCP/IP stack plus the application, while 64KB SRAM buffers packet data before forwarding. The industrial -40C to +85C temperature range enables factory floor deployment. Designers typically pair this MCU with a Micrel/KSZ8041 Ethernet PHY and route MII/RMII signals with controlled-impedance traces per Microchip AN833 reference design.
推荐
USB Device/Host Peripheral
The PIC32MX675F512L-80I/PT's USB 2.0 On-The-Go peripheral with integrated PHY eliminates the need for an external PHY chip, reducing BOM cost by approximately $1 USD and PCB area by 30-40% compared to discrete-USB solutions. With 4 dedicated DMA channels for USB, data throughput to/from the USB endpoint memory buffers runs without CPU intervention, freeing 80MHz MIPS cycles for application processing. Typical uses include USB mass storage devices, USB HID peripherals, USB CDC virtual COM ports, and USB audio class devices. The 512KB Flash easily holds the Microchip Harmony USB stack plus class drivers, and 64KB RAM provides endpoint buffer space for high-bandwidth isochronous transfers.
推荐
CAN-Bus Automotive Telematics
The PIC32MX675F512L-80I/PT integrates two independent CAN 2.0B controllers, ideal for automotive telematics modules that bridge between in-vehicle CAN buses and external connectivity. The industrial -I temperature grade supports automotive under-hood or cabin environments. The 80MHz MIPS M4K core with 64KB RAM buffers CAN message traffic while running CANopen or J1939 protocol stacks, and the 512KB Flash accommodates both CAN protocol libraries and application logic. Combined with the USB OTG and Ethernet peripherals, designers can build CAN-to-Ethernet gateways or CAN-to-USB diagnostic tools in a single chip. Per Microchip AN1249, proper CAN bus termination (120 ohm) and common-mode choke placement are essential.
推荐
Graphic HMI Display Controller
The PIC32MX675F512L-80I/PT's Parallel Master Port (PMP) and 85 programmable I/O pins enable direct interface to TFT LCD displays up to QVGA (320x240) resolution without external graphics controller ICs. The 80MHz core can drive display refresh while processing touch input and UI logic, and 512KB Flash stores fonts, icons, and graphics assets. The PMP interface typically connects to 8/16-bit parallel displays, with the 64KB RAM providing frame buffer memory for partial-screen animations. Combined with Ethernet/USB, the MCU can host web-based HMI configurations or remote touchscreen diagnostics. The integrated peripherals make it a single-chip HMI solution for industrial control panels.
推荐
IoT Edge Sensor Hub
The PIC32MX675F512L-80I/PT's combination of 10/100 Ethernet, USB OTG, 2x CAN, 5x I2C, 4x SPI, and 6x UART allows it to aggregate data from multiple sensor buses in IoT edge gateways. With 85 I/O pins, the device can directly interface to digital sensors, analog sensors via the 16-channel 10-bit ADC, and serial sensors over I2C/SPI/UART. The 80MHz MIPS M4K core handles data aggregation, edge analytics, and protocol translation (e.g., CAN-to-Ethernet or Modbus-to-MQTT), while 512KB Flash accommodates local rule engines. The 64KB SRAM is sufficient for buffering 1-2 seconds of sensor telemetry before forwarding to cloud or supervisory systems.
推荐
Audio Streaming Device
The PIC32MX675F512L-80I/PT's 80MHz MIPS M4K core and integrated peripherals support audio streaming applications over USB, Ethernet, or both simultaneously. The 512KB Flash can store the audio codec stack plus application code, and 64KB RAM provides DMA-driven audio buffers. The I2S peripheral (or PWM with external filtering) can drive audio DACs, while USB device mode supports USB audio class 1.0 streaming to host PCs. With 6 UART channels, multiple Bluetooth/Wi-Fi modules can be controlled for wireless audio bridges. The dual CAN interfaces enable integration with in-vehicle infotainment systems where automotive-grade communication is required.
推荐
推荐产品汇总
工程参考数据： PIC32MX675F512L-80I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC32MX795F512L-80I/PT | PIC32MX775F512L-80I/PT | PIC32MX695F512L-80I/PT |
|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz | MIPS32 M4K, 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 64 KB | 128 KB | 64 KB | 64 KB |
| Ethernet | 10/100 MAC MII/RMII | 10/100 MAC MII/RMII | 10/100 MAC MII/RMII | 10/100 MAC MII/RMII |
| USB | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY | USB 2.0 OTG with PHY |
| CAN | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 0x CAN |
| Price @ qty 1 (USD, as of 2026-10-09) | 9.85 | 11.20 | 9.85 | 9.45 |
关键差异点
- Highest RAM in 6xx sub-family （对比 PIC32MX575F512L-80I/MR (64-pin QFN))
- Dual CAN controllers integrated （对比 PIC32MX695F512L-80I/PT)
- Same package pinout as PIC32MX795F512L for memory upgrades （对比 PIC32MX795F512L-80I/PT)
设计说明
Place 100nF ceramic decoupling capacitors as close as possible to every VDD/VSS pin pair on the PIC32MX675F512L-80I/PT, plus a single 10uF bulk capacitor on each VDD rail. For Ethernet applications, isolate the analog AVDD/AVSS supply pins with an LC filter (10uF inductor + 10uF cap) to reject switching noise from the digital rails - the integrated 10-bit ADC performance depends on clean AVDD. The 100-TQFP package has excellent thermal performance; a 4-layer PCB with ground plane keeps theta_JA manageable at 80MHz operation.
For Ethernet MII/RMII interfaces, maintain 50 ohm controlled-impedance traces on the MII data/clock lines, with length matching of MII clock to data lines within +/-50 mils. Per Microchip AN833, keep MII/RMII traces under 4 inches and route away from switching signals. The USB D+/D- pair requires 90 ohm differential impedance with trace matching within +/-150 mils; keep these traces short and isolated. Use series ferrite beads on USB supply to suppress EMI.
Do not exceed 3.6V on any VDD pin; the PIC32MX675F512L is not 5V tolerant on most pins. The USB peripheral requires precise 48MHz clock - use the internal PLL with a 10MHz crystal, or an external 48MHz oscillator. Brown-out reset (BOR) must be enabled to ensure proper Flash programming and reliable startup. When using the Ethernet MAC, ensure RMII mode requires a 50MHz reference clock rather than the 25MHz for MII mode.
At 80MHz operation with all peripherals active, the PIC32MX675F512L-80I/PT typical power dissipation is approximately 200-250mW. The 100-TQFP package provides theta_JA around 40-45 C/W on a 4-layer PCB, resulting in a 10C junction rise above ambient. In enclosed industrial enclosures at 85C ambient, junction temperature may approach 95C - well within the 125C max rating. For continuous full-load operation in high-temperature environments, consider spread-spectrum clock or peripheral clock gating.
合规信息
RoHS compliant lead-free per Microchip product page. MSL Level 3 (168 hours floor life). Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified - use PIC32MX1xx automotive variants for automotive applications requiring AEC-Q100.
