PIC32MX675F512LT-80I/PF - 32-bit MCU 80MHz 512KB Flash TQFP-100 | Microchip
MPN: PIC32MX675F512LT-80I/PF ✓ Hoạt độngPIC32MX675F512LT-80I/PF Tóm tắt
What is a PIC32MX microcontroller? The PIC32MX family is Microchip's MIPS-based line of 32-bit microcontrollers, sitting above the 16-bit PIC24/dsPIC and below the Cortex-M class in computational throughput. PIC32MX devices combine a Harvard architecture with single-cycle flash access, a rich peripheral set, and are programmed using MPLAB X IDE with MPLAB XC32 compilers. The 'MX5/6/7' sub-family specifically targets connected-embedded applications by integrating Ethernet MAC and USB on-chip.
Key features of the PIC32MX675F512LT-80I/PF include 53 general-purpose I/O pins, two I2C, two SPI, and four UART interfaces, a 16-channel 10-bit ADC at 1 Msps, five 16-bit timers/counters, and a parallel master port for external bus expansion. The on-chip Ethernet MAC requires an external PHY (such as the LAN8720A or DP83848) to complete an MII/RM10 interface, while the USB OTG controller can operate in Host, Device, or On-the-Go mode with an external PHY-less transceiver.
Architecturally, the PIC32MX675F512L series employs a five-stage MIPS pipeline, prefetch cache to mask flash wait states, and a separate bus for peripherals. The device operates from a single 2.5-3.6 V supply, includes a 32 kHz low-power secondary oscillator for RTCC, and supports five low-power sleep modes for battery-backed designs.
Typical applications include industrial Ethernet gateways, building-automation controllers, point-of-sale terminals, embedded web servers, USB peripherals, and CAN-connected sensor nodes. The combination of deterministic interrupt latency, large SRAM for TCP/IP stacks, and dual connectivity interfaces makes it well suited to connected industrial designs.
When designing with this part, ensure the Ethernet PHY RM10 reference clock is sourced correctly and that the 25 MHz or 50 MHz main oscillator is used, not the internal 8 MHz RC. Decouple AVDD and VDD separately with 0.1 uF and 10 uF capacitors placed within 5 mm of the package pins.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX675F512LT-80I/PF — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC32MX675F512LT-80I/PF (cùng hình factor và footprint) — khác nhau ở Package, ADC, USB, Ethernet MAC, Timers.
PIC32MX675F512L-80I/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F256LT-80I/PF
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX575F512LT-80I/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX664F128LT-I/PF
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX460F512LT-80I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX675F512LT-80I/PF Tỷ lệ tối đa & tính chất điện
| Core | MIPS32 M4K (32-bit RISC) |
| Core frequency | 80 MHz (80 MIPS) |
| Flash program memory | 512 KB |
| SRAM data memory | 128 KB |
| Supply voltage (VDD) | 2.5 V to 3.6 V |
| I/O pins | 53 |
| Hộp | TQFP-100 (PF), 14x14 mm |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Ethernet MAC | 10/100 Mbit integrated (requires external PHY) |
| USB | USB 2.0 Full-Speed OTG integrated |
| CAN modules | 2 |
| DMA channels | 8 |
| UART | 4 |
| SPI | 2 |
| I2C | 2 |
| ADC | 16-channel 10-bit, 1 Msps |
| Timers | 5 x 16-bit |
| Cấp MSL | 3 |
| Lead-free / RoHS | Lead-free / RoHS compliant |
Cấu hình chân PIC32MX675F512LT-80I/PF
| Chân 1 | RG15 — I/O port RG15 |
| Chân 2 | VDD — Supply voltage |
| Chân 3 | RP0A — I/O port RA0 |
| Chân 4 | RP1 — I/O port RB0 |
| Chân 5 | RP1 — I/O port RB1 |
| Chân 6 | RP2 — I/O port RB2 |
| Chân 7 | RP3 — I/O port RB3 |
| Chân 8 | RP4 — I/O port RB4 |
| Chân 9 | VSS — Ground |
| Chân 10 | RP5 — I/O port RB5 |
| Chân 11 | RP6 — I/O port RB6 |
| Chân 12 | RP7 — I/O port RB7 |
| Chân 13 | RP8 — I/O port RB8 |
| Chân 14 | RP9 — I/O port RB9 |
| Chân 15 | VSS — Ground |
| Chân 16 | RP10 — I/O port RB10 |
| Chân 17 | RP11 — I/O port RB11 |
| Chân 18 | VDD — Supply voltage |
| Chân 19 | RP12 — I/O port RB12 |
| Chân 20 | RP13 — I/O port RB13 |
| Chân 21 | RP14 — I/O port RB14 |
| Chân 22 | RP15 — I/O port RB15 |
| Chân 23 | VSS — Ground |
| Chân 24 | RA0 — I/O port RA0 |
| Chân 25 | RA1 — I/O port RA1 |
| Chân 26 | RA2 — I/O port RA2 |
| Chân 27 | RA3 — I/O port RA3 |
| Chân 28 | RA4 — I/O port RA4 |
| Chân 29 | RA5 — I/O port RA5 |
| Chân 30 | RA6 — I/O port RA6 |
| Chân 31 | RA7 — I/O port RA7 |
| Chân 32 | AVDD — Analog supply |
| Chân 33 | AVSS — Analog ground |
| Chân 34 | RA9 — I/O port RA9 |
| Chân 35 | RA10 — I/O port RA10 |
| Chân 36 | VDD — Supply voltage |
| Chân 37 | VSS — Ground |
| Chân 38 | RC1 — I/O port RC1 |
| Chân 39 | RC2 — I/O port RC2 |
| Chân 40 | RC3 — I/O port RC3 |
| Chân 41 | RC4 — I/O port RC4 |
| Chân 42 | VDD — Supply voltage |
| Chân 43 | VSS — Ground |
| Chân 44 | RD0 — I/O port RD0 |
| Chân 45 | RD1 — I/O port RD1 |
| Chân 46 | RD2 — I/O port RD2 |
| Chân 47 | RD3 — I/O port RD3 |
| Chân 48 | RD4 — I/O port RD4 |
| Chân 49 | RD5 — I/O port RD5 |
| Chân 50 | VSS — Ground |
| Chân 51 | RD6 — I/O port RD6 |
| Chân 52 | RD7 — I/O port RD7 |
| Chân 53 | RD8 — I/O port RD8 |
| Chân 54 | RD9 — I/O port RD9 |
| Chân 55 | RD10 — I/O port RD10 |
| Chân 56 | RD11 — I/O port RD11 |
| Chân 57 | RD12 — I/O port RD12 |
| Chân 58 | RD13 — I/O port RD13 |
| Chân 59 | RD14 — I/O port RD14 |
| Chân 60 | RD15 — I/O port RD15 |
| Chân 61 | VSS — Ground |
| Chân 62 | RE0 — I/O port RE0 |
| Chân 63 | RE1 — I/O port RE1 |
| Chân 64 | RE2 — I/O port RE2 |
| Chân 65 | RE3 — I/O port RE3 |
| Chân 66 | RE4 — I/O port RE4 |
| Chân 67 | RE5 — I/O port RE5 |
| Chân 68 | RE6 — I/O port RE6 |
| Chân 69 | RE7 — I/O port RE7 |
| Chân 70 | VDD — Supply voltage |
| Chân 71 | RF0 — I/O port RF0 |
| Chân 72 | RF1 — I/O port RF1 |
| Chân 73 | VDD — Supply voltage |
| Chân 74 | RF2 — I/O port RF2 |
| Chân 75 | RF3 — I/O port RF3 |
| Chân 76 | RF4 — I/O port RF4 |
| Chân 77 | RF5 — I/O port RF5 |
| Chân 78 | RF6 — I/O port RF6 |
| Chân 79 | RF7 — I/O port RF7 |
| Chân 80 | RF8 — I/O port RF8 |
| Chân 81 | VSS — Ground |
| Chân 82 | RG0 — I/O port RG0 |
| Chân 83 | RG1 — I/O port RG1 |
| Chân 84 | RG2 — I/O port RG2 |
| Chân 85 | RG3 — I/O port RG3 |
| Chân 86 | RG6 — I/O port RG6 |
| Chân 87 | RG7 — I/O port RG7 |
| Chân 88 | RG8 — I/O port RG8 |
| Chân 89 | RG9 — I/O port RG9 |
| Chân 90 | VDD — Supply voltage |
| Chân 91 | VSS — Ground |
| Chân 92 | RG12 — I/O port RG12 |
| Chân 93 | RG13 — I/O port RG13 |
| Chân 94 | RG14 — I/O port RG14 |
| Chân 95 | RG15 — I/O port RG15 |
| Chân 96 | AEREFM0 — Analog reference ground |
| Chân 97 | AVDD — Analog supply |
| Chân 98 | AVSS — Analog ground |
| Chân 99 | OSC1 — Crystal oscillator input |
| Chân 100 | OSC2 — Crystal oscillator output |
Ứng dụng tiêu biểu
PIC32MX675F512LT-80I/PF phù hợp cho 7 Áp dụngs: Industrial Ethernet Gateway, USB HID / Device Peripheral, Building Automation Controller, POS Terminal / Embedded Payment Device, Embedded Web Server / IoT Edge Node, CAN-Connected Sensor Hub, Audio / Voice over IP Endpoint.
Industrial Ethernet Gateway
The PIC32MX675F512LT-80I/PF is well suited to industrial Ethernet gateways because it combines an integrated 10/100 Ethernet MAC with 128 KB of SRAM, which is sufficient to run Microchip's MPLAB Harmony TCP/IP stack alongside an RTOS. With 80 MIPS of throughput, the device can route Modbus/TCP, EtherNet/IP, or MQTT messages while servicing CAN, SPI sensors, and GPIOs simultaneously. The 8 DMA channels offload memory-to-memory and peripheral-to-memory transfers, reducing CPU load in high-traffic gateway designs.
Được đề xuất
USB HID / Device Peripheral
The PIC32MX675F512LT-80I/PF integrates USB 2.0 Full-Speed OTG, allowing it to act as USB device, host, or On-the-Go without an external transceiver IC. The 80 MHz MIPS core and 128 KB RAM comfortably handle USB stacks, HID class drivers, and CDC ACM bridges, while the 53 GPIOs provide ample headroom for buttons, LEDs, and segment-LCD interfaces. The device's small-footprint TQFP-100 package suits compact USB peripherals such as HID input devices, custom instrumentation, and USB-to-UART bridges.
Được đề xuất
Building Automation Controller
In building automation the PIC32MX675F512LT-80I/PF handles BACnet MS-TP or Modbus RTU over two CAN channels and four UART interfaces, while the Ethernet MAC provides BACnet/IP or web-server connectivity. The 16-channel 10-bit ADC at 1 Msps reads thermistor, humidity, and analog sensor channels, while the parallel master port drives external LCD or segment displays. Industrial-grade -40C to +85C operation and 2.5-3.6 V supply support 24V-bus systems via a step-down LDO.
Được đề xuất
POS Terminal / Embedded Payment Device
POS terminals benefit from the PIC32MX675F512LT-80I/PF's Ethernet MAC for IP-based payment connectivity, USB OTG for PIN-pad or printer peripherals, and 128 KB SRAM for transaction buffers and TLS handshakes. The 512 KB Flash accommodates encrypted firmware images with Microchip's secure-boot extensions, while the 80 MHz MIPS core supports AES/SHA acceleration in software. The TQFP-100 package fits compact POS form factors.
Được đề xuất
Embedded Web Server / IoT Edge Node
The PIC32MX675F512LT-80I/PF can host a small embedded web server using Microchip's Harmony Net Services, exposing REST endpoints or MQTT topics without external memory. 128 KB RAM is sufficient for a typical HTTP server with TLS lite, while the Ethernet MAC and 8 DMA channels offload TCP/IP packet handling. Industrial -40C to +85C operation and a 2.5-3.6 V supply suit factory-floor installations, while the 53 onboard ports interface directly to sensors and actuators.
Được đề xuất
CAN-Connected Sensor Hub
With two independent CAN modules, the PIC32MX675F512LT-80I/PF acts as a CAN hub bridging sensor arrays on one bus with actuator controllers on another, or providing CAN-to-Ethernet/CAN-to-USB bridging. The 80 MHz MIPS core and 8 DMA channels handle CAN-FD payloads at 1 Mbps, while 16 ADC inputs digitize analog sensor data before forwarding on the bus. Industrial -40C to +85C operation and 2.5-3.6 V supply support vehicle and factory CAN bus environments.
Được đề xuất
Audio / Voice over IP Endpoint
The PIC32MX675F512LT-80I/PF's 80 MIPS performance and 128 KB RAM are sufficient to run VoIP signaling stacks (SIP) and small audio buffering, while the integrated Ethernet MAC provides IP connectivity and the 16-bit ADC could digitize microphone inputs at voice sample rates. The 2.5-3.6 V supply and small TQFP-100 package suit compact desk-phone or intercom form factors. Designers should pair with an external audio codec such as the AIC23B for full-duplex voice.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX675F512LT-80I/PF — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC32MX675F512L-80I/PF | PIC32MX675F256LT-80I/PF | PIC32MX575F512LT-80I/PF | PIC32MX664F128LT-I/PF | PIC32MX460F512LT-80I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PF) 14x14 mm | TQFP-100 (PF) - same | TQFP-100 (PF) - same | TQFP-100 (PF) - same | TQFP-100 (PF) - same | TQFP-100 (PT) - same |
| Core | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K | MIPS32 M4K |
| Max Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 512 KB | 512 KB | 256 KB (-50%) | 512 KB | 128 KB (-75%) | 512 KB |
| SRAM | 128 KB | 128 KB | 64 KB (-50%) | 128 KB | 32 KB (-75%) | 32 KB (-75%) |
| Ethernet MAC | 10/100 integrated | 10/100 integrated | 10/100 integrated | None | 10/100 integrated | None |
| USB OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Supply Voltage | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.3 V to 3.6 V |
| Approx Unit Price (qty 100) | USD 7.30 | USD 7.10 | USD 6.50 | USD 6.80 | USD 5.95 | USD 6.20 |
Bảo phân biệt quan trọng
- Integrated 10/100 Ethernet MAC plus dual CAN modules in a single TQFP-100 device (vsPIC32MX575F512LT-80I/PF)
- Tape and reel packaging for high-volume SMT assembly (vsPIC32MX675F512L-80I/PF)
- Industry-standard MIPS32 M4K core with mature MPLAB Harmony software stack (vsPIC32MX664F128LT-I/PF)
Ghi chú thiết kế
The PIC32MX675F512LT-80I/PF requires separate analog and digital supply pins (AVDD/AVSS, VDD/VSS). AVDD must be tied to the same 3.3 V rail as VDD, but a ferrite bead plus 10 uF + 0.1 uF decoupling network on AVDD is recommended to keep ADC reference clean. A common-mode choke between AVDD and VDD reduces ADC noise coupling by 10-15 dB. Decouple each VDD pin with its own 0.1 uF ceramic placed within 5 mm of the pin - never share a single decoupling capacitor across multiple VDD pins.
For the TQFP-100 (PF) 14x14 mm package, use a 4-layer PCB stack-up with a continuous ground plane on layer 2 to provide both thermal dissipation and controlled impedance for high-speed signals. The Ethernet RMII traces must be 50 ohm single-ended, length-matched within 50 mils, and routed on the top layer with the ground plane 0.2 mm below. Use a 1:1 Ethernet transformer on the MDI lines with center taps tied to a clean 2.5 V or 3.3 V via a 49.9 ohm + 0.1 uF network per IEEE 802.3.
Do not enable the on-chip Ethernet MAC without a 50 MHz or 25 MHz reference clock on the ERCLK pin - the MAC requires an external PHY reference and will not lock without it. Setting OSCCON for the primary oscillator with PLL must follow the unlock sequence in Section 6 of the PIC32MX5XX6XX7XX datasheet; failures typically show as a runaway clock rather than a clean error. Pin 99/100 (OSC1/OSC2) should drive a fundamental-mode crystal with load capacitors sized per crystal datasheet, typically 22 pF for an 8 MHz crystal.
