PIC32MX775F512H-80V/PT - 80MHz 512KB Flash MCU w/ ETH+USB-OTG+CAN | Microchip
料号： PIC32MX775F512H-80V/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $13.42 | $13.42 |
| 10 | $12.08 | $120.80 |
| 100 | $10.74 | $1,074.00 |
| 500 | $9.66 | $4,830.00 |
| 1,000 | $8.59 | $8,590.00 |
PIC32MX775F512H-80V/PT 概述
A 32-bit microcontroller (MCU) is a single-chip processor that integrates a CPU, memory, and programmable peripherals around a 32-bit data path. Microcontrollers sit within the broader taxonomy of microprocessors -> RISC processors -> embedded microcontrollers -> 32-bit MCUs, and within Microchip's PIC32MX family they are the MIPS-based high-performance tier above PIC24/dsPIC. The PIC32MX5/6/7 series specifically adds integrated connectivity peripherals (Ethernet MAC, USB-OTG, CAN) that historically required external components, simplifying BOM and reducing PCB area. This product belongs to the integrated circuits and microcontrollers module family hierarchy.
Key features include a 5-stage pipeline MIPS32 M4K core with hardware multiply/divide and single-cycle MAC, eight dedicated DMA channels that offload the CPU for USB-OTG, Ethernet, and CAN transfers, dual CAN 2.0b modules with 1024 message buffers, parallel master port (PMP) for graphics or external memory, and a 16-channel 10-bit ADC at 1 Msps. The work group also provides five 16-bit timer/counters, two UARTs, two SPI ports, and two I2C ports.
The architectural combination of dedicated DMA, separate peripheral buses, and on-chip PHY allows deterministic real-time performance for industrial networking stacks such as Modbus TCP/IP, EtherNet/IP, and CANopen, while leaving CPU bandwidth for the application layer. Fail-Safe Clock Monitor and multiple power management modes support robust field deployments.
Typical applications include industrial Ethernet gateways, USB-OTG device/host peripherals, CAN-based motor control nodes, embedded web servers, and graphical HMI panels using PMP to drive TFT LCDs.
When designing with this device, ensure the 2.3 V to 3.6 V supply is well decoupled near each VDD/VSS pair; use the on-chip LDO for the 1.8 V internal core, and follow the package land pattern with continuous thermal vias under the exposed pad.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers shortlist the PIC32MX775F512H against modern alternatives.
直接替换替代料： PIC32MX775F512H-80V/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： PIC32MX775F512H-80V/PT （相同外形与封装尺寸） ——差异在于 Package, ADC, Timers, USB, CAN.
快速对比工具——选择替代料号进行并排对比：
PIC32MX775F512H-80I/PT
✅ 直接替换✓ 有现货
$6.2 / 个
查看数据手册 →PIC32MX675F512H-80I/PT
✅ 直接替换✓ 有现货
$8.42 / 个
查看数据手册 →PIC32MX575F512H-80V/PT
✅ 直接替换✓ 有现货
$5.3 / 个
查看数据手册 →PIC32MX764F128HT-I/MR
✅ 直接替换✓ 有现货
$6.04 / 个
查看数据手册 →PIC32MX470F512H-V/PT
✅ 直接替换✓ 有现货
$6.1 / 个
查看数据手册 →PIC32MX775F512H-80V/PT 最大额定值与电气特性
| Core Architecture | MIPS32 M4K, 32-bit RISC, 5-stage pipeline |
| Maximum CPU Frequency | 80 MHz (105 DMIPS) |
| Program Flash Memory | 512 KB (512K x 8) + 12 KB boot Flash |
| Data RAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| USB Peripheral | USB 2.0 On-The-Go with integrated PHY |
| Ethernet | 10/100 Mbps MAC with MII/RMII interface |
| CAN | 2 x CAN 2.0b modules, 1024 message buffers |
| DMA Channels | 8 dedicated (USB-OTG, Ethernet, CAN) |
| I/O Pins | 51 to 53 (package-dependent) |
| ADC | 16-channel, 10-bit, 1 Msps |
| 封装 | 64-pin TQFP (10x10 mm) |
| 工作温度 | -40C to +105C (industrial, -V grade) |
| Speed Grade | 80 MHz / 80V (V = industrial temp) |
| RoHS / Lead-Free | Lead-free, RoHS compliant per datasheet |
PIC32MX775F512H-80V/PT 引脚配置
| 引脚 1 | SDA3/RA0 — I2C3 SDA / GPIO |
| 引脚 2 | SCL3/RA1 — I2C3 SCL / GPIO |
| 引脚 3 | RA2 — GPIO only |
| 引脚 4 | RA3 — GPIO only |
| 引脚 5 | RA4 — GPIO / TMS |
| 引脚 6 | RA5 — GPIO / TDI |
| 引脚 7 | RA6 — GPIO / TCK |
| 引脚 8 | RA7 — GPIO / TDO |
| 引脚 9 | RB0 — PGED1/AN0/RPB0 |
| 引脚 10 | RB1 — PGEC1/AN1/RPB1 |
| 引脚 11 | RB2 — AN2/CN4/RPB2 |
| 引脚 12 | RB3 — AN3/CN5/RPB3 |
| 引脚 13 | RB4 — AN4/CN6/RPB4 |
| 引脚 14 | RB5 — AN5/CN7/RPB5 |
| 引脚 15 | RB6 — AN6/OC1/RPB6 |
| 引脚 16 | RB7 — AN7/OC2/RPB7 |
| 引脚 17 | RB8 — AN8/OC3/RPB8 |
| 引脚 18 | RB9 — AN9/OC4/RPB9 |
| 引脚 19 | RB10 — AN10/CVREF/RPB10 |
| 引脚 20 | RB11 — AN11/RPB11 |
| 引脚 21 | VSS — Ground |
| 引脚 22 | VDD — Power supply 2.3-3.6V |
| 引脚 23 | RB12 — AN12/RPB12 |
| 引脚 24 | RB13 — AN13/RPB13 |
| 引脚 25 | RB14 — AN14/RPB14 |
| 引脚 26 | RB15 — AN15/OCFB/RPB15 |
| 引脚 27 | RC1 — T2CK/RC1 |
| 引脚 28 | RC2 — T3CK/RC2 |
| 引脚 29 | RC3 — RC3 |
| 引脚 30 | RC4 — RC4 |
| 引脚 31 | VDD — Power supply |
| 引脚 32 | VSS — Ground |
| 引脚 33 | RC5 — RC5 |
| 引脚 34 | RC6 — RC6 |
| 引脚 35 | RC7 — RC7 |
| 引脚 36 | RC8 — RC8 |
| 引脚 37 | RC9 — RC9 |
| 引脚 38 | RC10 — RC10 |
| 引脚 39 | RC11 — RC11 |
| 引脚 40 | RC12 — RC12 |
| 引脚 41 | RC13 — RC13 |
| 引脚 42 | RC14 — RC14 |
| 引脚 43 | RC15 — RC15 |
| 引脚 44 | VSS — Ground |
| 引脚 45 | VDD — Power supply |
| 引脚 46 | RD0 — RD0 |
| 引脚 47 | RD1 — RD1 |
| 引脚 48 | RD2 — RD2 |
| 引脚 49 | RD3 — RD3 |
| 引脚 50 | RD4 — RD4 |
| 引脚 51 | RD5 — RD5 |
| 引脚 52 | RD6 — RD6 |
| 引脚 53 | RD7 — RD7 |
| 引脚 54 | RD8 — RD8 |
| 引脚 55 | RD9 — RD9 |
| 引脚 56 | RD10 — RD10 |
| 引脚 57 | RD11 — RD11 |
| 引脚 58 | RD12 — RD12 |
| 引脚 59 | RD13 — RD13 |
| 引脚 60 | RD14 — RD14 |
| 引脚 61 | RD15 — RD15 |
| 引脚 62 | VSS — Ground |
| 引脚 63 | VDD — Power supply |
| 引脚 64 | RF6 — RF6 |
典型应用
PIC32MX775F512H-80V/PT 适用于 7 应用s: Industrial Ethernet Gateway, USB-OTG Peripheral Bridge, CAN-based Motor Control Node, Embedded Web Server / HMI, Data Acquisition Front-End, Automotive Aftermarket Telematics, IoT Edge Connectivity Hub.
Industrial Ethernet Gateway
The PIC32MX775F512H-80V/PT integrates a 10/100 Ethernet MAC with MII/RMII plus dedicated DMA channels that offload TCP/IP packet handling from the CPU. The 80 MHz MIPS core comfortably sustains Modbus TCP at 100 Hz poll rates while leaving cycles for application logic. The -40C to +105C industrial temperature grade suits outdoor control cabinets where AMBIENT exceeds 85C, and the on-chip PHY eliminates the external 100BASE-TX magnetics integration burden on the BOM.
推荐
USB-OTG Peripheral Bridge
The integrated USB 2.0 On-The-Go controller with on-chip PHY allows the PIC32MX775F512H-80V/PT to act as a USB host, device, or dual-role OTG node without external transceivers. The dedicated DMA channel streams USB packets directly to RAM, freeing the CPU for protocol conversion. A typical use is a USB-to-CAN bridge where USB FS (12 Mbps) traffic and CAN 2.0b frames are multiplexed onto Ethernet for factory network telemetry. The 64 KB RAM and 512 KB Flash hold both TCP/IP stack and USB class drivers.
推荐
CAN-based Motor Control Node
Dual CAN 2.0b controllers with 1024 message buffers make the PIC32MX775F512H-80V/PT suitable for distributed motor control networks such as CANopen and DeviceNet. The five 16-bit timer/counters drive PWM outputs for 3-phase brushless DC control, while CAN broadcasts torque commands at 1 Mbps. The 105 DMIPS core handles field-oriented control (FOC) math in software, eliminating a separate DSP chip. Industrial-grade -40C to +105C operation tolerates under-cabinet and motor-housing heat.
推荐
Embedded Web Server / HMI
The parallel master port (PMP) of the PIC32MX775F512H-80V/PT drives TFT LCDs at up to 480x272 resolution for graphical HMIs, with the 80 MHz CPU rendering small bitmaps without external graphics controller. The integrated Ethernet MAC and TCP/IP stack (e.g. Microchip Harmony Net) allow direct exposure of process data via web pages served by the MCU itself, removing a gateway PC. 512 KB Flash holds both HTML/CSS assets and the control firmware.
推荐
Data Acquisition Front-End
The 16-channel 10-bit 1 Msps ADC of the PIC32MX775F512H-80V/PT samples multi-sensor industrial inputs (temperature bridges, strain gauges, 4-20 mA loops) at high rate while the 8-channel DMA streams samples to RAM. Dual CAN interfaces push processed data to the plant SCADA, and Ethernet backhaul is reserved for configuration and remote diagnostics. The -40C to +105C grade tolerates sensor-hub mounting near motor drives.
推荐
Automotive Aftermarket Telematics
Although not AEC-Q100 qualified, the PIC32MX775F512H-80V/PT is widely used in non-safety automotive aftermarket devices such as OBD-II dongles and CAN bus data loggers. The dual CAN 2.0b modules simultaneously read engine and chassis buses, USB-OTG exposes the dongle as a mass-storage device, and Ethernet provides a hardwired diagnostic link. The -V temperature grade supports cabin and trunk environments that can exceed 85C in summer sun.
推荐
IoT Edge Connectivity Hub
The PIC32MX775F512H-80V/PT functions as an edge hub aggregating multiple IoT field buses (CAN, RS-485 via UART, USB sensor sticks) onto a single Ethernet uplink. The 8 DMA channels handle concurrent transfers, the 64 KB RAM buffers burst traffic, and the 5-stage pipeline maintains deterministic response to time-critical field events. Microchip's MPLAB Harmony framework provides pre-certified TCP/IP and USB stacks reducing firmware development time.
推荐
推荐产品汇总
工程参考数据： PIC32MX775F512H-80V/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 | PIC32MX775F512H-80I/PT | PIC32MX675F512H-80I/PT | PIC32MX575F512H-80V/PT | PIC32MX764F128HT-I/MR | PIC32MX470F512H-V/PT |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin QFN - differs | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Frequency | 80 MHz / 105 DMIPS | 80 MHz / 105 DMIPS | 80 MHz / 105 DMIPS | 80 MHz / 105 DMIPS | 80 MHz / 105 DMIPS | 120 MHz / 150 DMIPS |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 128 KB (-75%) | 512 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 128 KB |
| USB-OTG | Yes (integrated PHY) | Yes | Yes | No | Yes | Yes |
| Ethernet MAC | 10/100 Mbit MII/RMII | 10/100 Mbit | No | No | 10/100 Mbit | 10/100 Mbit |
| CAN 2.0b | 2 modules | 2 modules | 2 modules | 0 modules | 0 modules | 0 modules |
| Temperature Grade | -40C to +105C (-V) | -40C to +85C (-I) | -40C to +85C (-I) | -40C to +105C (-V) | -40C to +85C (-I) | -40C to +105C (-V) |
| DMA Channels | 8 | 8 | 8 | 8 | 8 | 8 |
关键差异点
- Highest temperature grade in the PIC32MX775F512H family （对比 PIC32MX775F512H-80I/PT)
- Only L8 V-rated part in the PIC32MX5/6/7 family with USB-OTG + Ethernet + dual CAN at 512 KB Flash （对比 PIC32MX575F512H-80V/PT)
- Higher Flash density than PIC32MX764 series with same connectivity （对比 PIC32MX764F128HT-I/MR)
设计说明
The PIC32MX775F512H-80V/PT operates from a single 2.3 V to 3.6 V supply. Decouple each VDD/VSS pin locally with 100 nF X7R ceramic placed within 3 mm of the pin, and add a bulk 10 uF tantalum or ceramic near the package. The on-chip LDO generates the 1.8 V core; do not back-drive VCAP pins (pin 28 in some variants). USB-VDD can be tied to VDD but should be filtered with a ferrite bead if the board has noisy switching regulators nearby. A reverse-biased TVS on VBUS (5V tolerant pin) defends against USB VBUS miswiring.
At 80 MHz with full peripheral activity the PIC32MX775F512H-80V/PT typically draws 70 to 90 mA, dissipating approximately 200 mW at 3.3 V. The 64-pin TQFP package has thermal resistance around 45 C/W on a standard 4-layer JEDEC board, yielding a junction rise of only 9 C above ambient - well within the +105C ceiling. Continuous four-corner I/O toggling at 80 MHz can lift current to 130 mA; for sealed enclosures, verify worst-case junction temperature with the Microchip thermal estimator spreadsheet.
Route Ethernet MII/RMII signals with controlled 50 ohm impedance and length-match within 50 mil between clock and data pairs. Place the 25 MHz Ethernet PHY crystal within 5 mm of the ETH_CLK pins with a guard ring tied to analog ground. USB D+/D- differential pair must be 90 ohm differential with no stubs; route over a continuous ground plane and avoid crossing splits. JTAG traces TMS, TCK, TDI, TDO should be short (< 50 mm) or series-terminated at 33 ohm to avoid ringing during in-circuit programming.
Do not exceed 3.6 V on any I/O pin including the 5V-tolerant USB VBUS line - the USB D+/D- pins are NOT 5V tolerant, only the VBUS sense pin is rated 5 V. The Fail-Safe Clock Monitor must be enabled when relying on the internal RC for USB or Ethernet operation; otherwise the USB packet timing violates the FS spec. The MSS (master synchronous serial) pins conflict with JTAG - leave them in their default state if you use JTAG debugging. Always clear the JTAGEN bit before driving those pins as GPIO.
合规信息
Lead-free and RoHS compliant per Microchip product page for PIC32MX775F512H family. Not AEC-Q100 qualified; for automotive safety applications consider PIC32MK or SAM E70 family. REACH compliance standard per Microchip policy.
