PIC32MX675F256H-80V/MR - 80MHz 256KB Flash MCU | Microchip
MPN: PIC32MX675F256H-80V/MR ✓ Hoạt độngPIC32MX675F256H-80V/MR Tóm tắt
A PIC32MX microcontroller is a 32-bit MIPS-based MCU from Microchip designed to bridge the gap between traditional 8/16-bit PIC controllers and high-end Cortex-M devices. The PIC32 family uses a 5-stage Harvard pipeline and the MIPS16e instruction set, allowing up to 40% smaller code size for compact code. Positioned in the hierarchy MCU -> 32-bit MCU -> MIPS M4K core -> connected MCU, the PIC32MX5/6/7 series specifically targets embedded connectivity.
Key features include 80MHz core speed (105 DMIPS), 256KB Flash, 64KB RAM, USB-OTG with on-chip PHY, 10/100 Ethernet MAC, 53 general-purpose I/O lines, 4 dedicated DMA channels, two I2C, two SPI, five UART, two CAN, and a 16-channel 10-bit ADC. The device supports 2.3V to 3.6V single-supply operation, drawing 73mA/MIPS at full speed. The VQFN-64 9x9 package exposes the thermal pad for improved thermal performance.
The PIC32MX675 uses the MIPS M4K core with hardware multiply/divide, shadow register sets, and a deterministic interrupt controller. Code density is enhanced by MIPS16e compressed instructions. The on-chip USB-OTG PHY and dedicated DMA path eliminate the need for an external PHY and reduce CPU load for full-speed and high-speed USB stacks. Ethernet MAC, USB, and DMA work together, with IPv4 checksum offload to enable robust TCP/IP stacks on a single chip.
Typical applications include industrial Ethernet nodes, USB peripherals and embedded hosts, building automation controllers, point-of-sale terminals, and connected medical devices. The combination of USB-OTG, Ethernet, CAN, and ample GPIO is well suited to factory automation, bridging sensors and HMIs to Ethernet/USB networks.
When designing with this device, ensure the 64-VQFN thermal pad is soldered to a sufficiently large copper pour for heat dissipation, and route the USB DP/DN lines as a 90 ohm differential pair per USB specifications. MPLAB Harmony provides integrated middleware for TCP/IP, USB, and graphics, reducing development time.
This page combines distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet summary.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX675F256H-80V/MR — 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 PIC32MX675F256H-80V/MR (cùng hình factor và footprint) — khác nhau ở ADC, Ethernet, Operating Temperature, Package, USB.
PIC32MX675F256H-80I/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F256H-V/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX575F256H-80V/MR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F256LT-80V/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F512H-80V/MR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F256H-80V/MR Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K (32-bit, 5-stage pipeline) |
| Maximum CPU Clock | 80 MHz (105 DMIPS) |
| Program Flash Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| I/O Pins | 53 |
| USB | USB 2.0 OTG with integrated PHY |
| Ethernet | 10/100 MAC with MII/RMII |
| DMA Channels | 4 (dedicated for USB OTG) |
| ADC | 16-channel, 10-bit |
| Communication Peripherals | 2x I2C, 2x SPI, 5x UART, 2x CAN |
| Timers | 5x 16-bit or 2x 32-bit |
| Nhiệt độ hoạt động | -40C to +105C (industrial, 'V' suffix) |
| Hộp | 64-pin VQFN (9x9 mm) with EP |
| Instruction Set Extensions | MIPS16e for up to 40% smaller code |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX675F256H-80V/MR
| Chân 1 | RB15 — General-purpose I/O |
| Chân 2 | RB14 — General-purpose I/O |
| Chân 3 | RB13 — General-purpose I/O / AN13 |
| Chân 4 | RB12 — General-purpose I/O / AN12 |
| Chân 5 | RB11 — General-purpose I/O / AN11 |
| Chân 6 | RB10 — General-purpose I/O / AN10 |
| Chân 7 | RB9 — General-purpose I/O / AN9 |
| Chân 8 | RB8 — General-purpose I/O / AN8 |
| Chân 9 | RB7 — General-purpose I/O / AN7 |
| Chân 10 | RB6 — General-purpose I/O / AN6 |
| Chân 11 | RB5 — General-purpose I/O / AN5 |
| Chân 12 | RB4 — General-purpose I/O / AN4 |
| Chân 13 | RB3 — General-purpose I/O / AN3 |
| Chân 14 | RB2 — General-purpose I/O / AN2 |
| Chân 15 | RB1 — General-purpose I/O / AN1 |
| Chân 16 | RB0 — General-purpose I/O / AN0 |
| Chân 17 | VDD — Power supply 2.3-3.6V |
| Chân 18 | VSS — Ground |
| Chân 19 | RF13 — General-purpose I/O / USB D- related |
| Chân 20 | RF12 — General-purpose I/O / USB D+ related |
| Chân 21 | RF5 — General-purpose I/O |
| Chân 22 | RF4 — General-purpose I/O |
| Chân 23 | RF3 — General-purpose I/O |
| Chân 24 | RF2 — General-purpose I/O |
| Chân 25 | RF1 — General-purpose I/O |
| Chân 26 | RF0 — General-purpose I/O |
| Chân 27 | RD9 — General-purpose I/O |
| Chân 28 | RD8 — General-purpose I/O |
| Chân 29 | RD7 — General-purpose I/O |
| Chân 30 | RD6 — General-purpose I/O |
| Chân 31 | RD5 — General-purpose I/O |
| Chân 32 | RD4 — General-purpose I/O |
| Chân 33 | RD3 — General-purpose I/O |
| Chân 34 | RD2 — General-purpose I/O |
| Chân 35 | RD1 — General-purpose I/O |
| Chân 36 | RD0 — General-purpose I/O |
| Chân 37 | RC15 — General-purpose I/O |
| Chân 38 | RC14 — General-purpose I/O |
| Chân 39 | RC13 — General-purpose I/O |
| Chân 40 | RC12 — General-purpose I/O |
| Chân 41 | VDD — Power supply 2.3-3.6V |
| Chân 42 | VSS — Ground |
| Chân 43 | RG15 — General-purpose I/O |
| Chân 44 | RG14 — General-purpose I/O |
| Chân 45 | RG13 — General-purpose I/O |
| Chân 46 | RG12 — General-purpose I/O |
| Chân 47 | RG9 — General-purpose I/O |
| Chân 48 | RG8 — General-purpose I/O |
| Chân 49 | RG7 — General-purpose I/O |
| Chân 50 | RG6 — General-purpose I/O |
| Chân 51 | RA15 — General-purpose I/O |
| Chân 52 | RA14 — General-purpose I/O |
| Chân 53 | RA9 — General-purpose I/O / MCLR |
| Chân 54 | RA1 — General-purpose I/O |
| Chân 55 | RA0 — General-purpose I/O |
| Chân 56 | VSS — Ground |
| Chân 57 | VDD — Power supply 2.3-3.6V |
| Chân 58 | RF6 — General-purpose I/O |
| Chân 59 | RC1 — General-purpose I/O |
| Chân 60 | RC2 — General-purpose I/O |
| Chân 61 | RC3 — General-purpose I/O |
| Chân 62 | RC4 — General-purpose I/O |
| Chân 63 | OSC1 — Crystal oscillator input |
| Chân 64 | OSC2 — Crystal oscillator output |
Ứng dụng tiêu biểu
PIC32MX675F256H-80V/MR phù hợp cho 6 Áp dụngs: Industrial Ethernet Gateway, USB-OTG Embedded Host/Device, Building Automation Controller, Point-of-Sale Terminal, Connected Medical Device, Industrial CAN Bus Node.
Industrial Ethernet Gateway
The PIC32MX675F256H-80V/MR's integrated 10/100 Ethernet MAC with MII/RMII interfaces and 64KB SRAM makes it ideal for industrial Ethernet gateway designs. The 80MHz MIPS M4K core (105 DMIPS) sustains TCP/IP stack processing while DMA offloads packet buffering, and the on-chip MAC connects to a 25 MHz external PHY such as the LAN8720A or DP83848. With VDD 2.3-3.6V and -40C to +105C industrial temperature rating, it handles IEC 60068-2 industrial environments without additional thermal management, while the 64-VQFN exposed pad provides heat dissipation for continuous full-speed operation.
Được đề xuất
USB-OTG Embedded Host/Device
The PIC32MX675F256H-80V/MR integrates a USB 2.0 On-The-Go controller with PHY and a dedicated DMA channel, eliminating the external PHY and reducing CPU load. The 4 DMA channels offload endpoint data transfer while the 80MHz core handles USB stacks (HID, CDC, MSD) and application logic. The 64KB SRAM buffers USB descriptors and double-buffered endpoint data, supporting both host mode (for connecting peripherals) and device mode. Its industrial temperature range suits factory and field deployments.
Được đề xuất
Building Automation Controller
The PIC32MX675F256H-80V/MR combines Ethernet, USB, 5x UART, 2x CAN, and 53 GPIO in one chip - perfect for building automation controllers that bridge KNX/CAN fieldbus to IP networks. The 80MHz core and 256KB Flash run protocols like BACnet or Modbus TCP, while the 64KB SRAM buffers multiple concurrent TCP sockets. Industrial -40C to +105C operation handles unconditioned equipment rooms. The 64-VQFN 9x9 mm footprint keeps PCB density high for DIN-rail mounted controllers.
Được đề xuất
Point-of-Sale Terminal
The PIC32MX675F256H-80V/MR's USB-OTG, Ethernet, and 16-channel 10-bit ADC support point-of-sale terminals with barcode scanners, receipt printers, magnetic-stripe readers, and Ethernet backhaul. The 80MHz MIPS M4K core processes payment protocols, while 256KB Flash holds application code, fonts, and TLS libraries. The 5 UARTs interface with peripherals, and the ADC reads battery voltage and thermal sensors. Compact 64-VQFN 9x9 mm allows thin POS enclosure designs.
Được đề xuất
Connected Medical Device
The PIC32MX675F256H-80V/MR powers connected medical devices requiring reliable Ethernet/USB connectivity for patient data transfer. Its 80MHz processing and 64KB SRAM run lightweight TLS stacks; its 16-channel ADC digitizes analog sensor inputs. The -40C to +105C industrial temperature rating supports clinical environment use. The integrated USB-OTG enables direct connection to PCs during service and configuration. The 64-VQFN package supports compact, sealed enclosure requirements typical of medical devices.
Được đề xuất
Industrial CAN Bus Node
The PIC32MX675F256H-80V/MR's dual CAN interfaces and 80MHz core make it suitable for industrial CAN bus nodes and bridges. CAN bus traffic at 1 Mbit/s is handled by the dedicated CAN controllers while the core processes higher-layer protocols like CANopen or J1939. The 53 GPIO pins connect to digital sensors, LEDs, and operator panels. The -40C to +105C temperature range and 2.3V-3.6V single supply simplify industrial power designs. The 64-VQFN exposed pad ensures reliable thermal performance in enclosed cabinets.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX675F256H-80V/MR — 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 | PIC32MX675F256H-80I/MR | PIC32MX675F256LT-80V/MR | PIC32MX675F512H-80V/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 512 KB (+100%) |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB |
| Temperature Grade | -40C to +105C (V) | -40C to +85C (I) | -40C to +105C (V) | -40C to +105C (V) |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) |
| USB OTG | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) | Yes (with PHY) |
Bảo phân biệt quan trọng
- Industrial +105C temperature grade with Ethernet+USB (vsPIC32MX675F256H-80I/MR)
- Upgradable to 512KB Flash on same footprint (vsPIC32MX675F512H-80V/MR)
- Full USB-OTG with on-chip PHY (vsPIC32MX575F256H-80V/MR)
Ghi chú thiết kế
The 64-pin VQFN (9x9 mm) package has an exposed thermal pad that MUST be soldered to a PCB copper pour of at least 1 square inch for thermal relief. Without proper pad soldering, junction temperature can rise above the +105C industrial limit under full 80MHz operation. Recommended: 4-layer PCB with continuous ground plane under the device; thermal vias (0.3mm, 1.2mm pitch) between pad and inner ground plane reduce junction-to-ambient thermal resistance significantly.
Route the USB DP/DN signals as a 90 ohm differential pair per USB 2.0 specification, with matched trace lengths (within 150 mil), characteristic impedance of 90 ohms differential, and no stubs. Keep DP/DN away from clock traces and noisy switching signals. Place the 27 pF USB reference capacitor and ferrite bead as close to the VBUS pin as possible. Refer to Microchip Application Note AN612 for PCB layout checklists.
Place 100 nF decoupling capacitors within 3 mm of every VDD pin (pins 17, 41, 57) and a bulk 4.7-10 uF tantalum or ceramic capacitor near the IC. The PIC32MX675 has multiple VDD pins that must each be decoupled. Use a ferrite bead between analog AVDD and digital VDD if precision ADC readings are required. MPLAB X11 power configurations in Harmony help validate sequencing at startup.
Ensure the MCLR reset circuit includes a 1 kΩ pull-up to VDD5V and a 10 nF capacitor to ground for proper POR. Do not connect JTAG pins TMS/TCK/TDO/TDI to GPIO without configuring them as alternate-function in PPS. The 'L' vs 'L' suffix in PIC32MX570 parts does not mean Ethernet-less - only the '5' suffix (PIC32MX575) removes Ethernet MAC. Always cross-check the full datasheet ordering nomenclature before design-in.
Thông tin tuân thủ
RoHS and REACH compliant per DigiKey product listing; lead-free and halogen-free per Microchip product page. Not AEC-Q100 qualified - this part targets industrial/consumer, not automotive. For automotive PIC32 options, see PIC32MX variants with V automotive suffix.
