PIC32MX775F256L-80I/BG - 80MHz 32-bit MCU 256KB Flash | Microchip
部品番号: PIC32MX775F256L-80I/BG ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $9.99 | $9.99 |
| 10 | $9.18 | $91.80 |
| 100 | $7.95 | $795.00 |
| 500 | $7.1 | $3,550.00 |
| 1,000 | $6.42 | $6,420.00 |
PIC32MX775F256L-80I/BG 概要
A 32-bit microcontroller is an integrated circuit that combines a high-performance processor core, volatile memory (SRAM), non-volatile program memory (Flash), and a rich set of peripherals on a single die. The PIC32MX family from Microchip implements the MIPS32 M4K architecture, which supports the MIPS instruction set and offers deterministic interrupt handling. Within the broader embedded taxonomy, the PIC32MX sits between 8/16-bit MCUs (PIC16, PIC24) and higher-end Cortex-M parts, delivering MHz-class processing with deterministic peripheral behavior and a 32-bit data path. This product type belongs to the hierarchy: microcontroller -> embedded processor -> semiconductor IC -> electronic component.
Key features include a maximum clock speed of 80 MHz, 256 KB of Flash program memory, 64 KB of SRAM, integrated 10/100 Mbps Ethernet MAC, USB-OTG full-speed PHY, two CAN 2.0b modules, eight DMA channels, and a 10-bit ADC. The 83 I/O pins support 5V-tolerant inputs, and the part operates from 2.3 V to 3.6 V, simplifying designs powered from a single Li-ion cell or 3.3 V regulated rail.
The PIC32MX775F256L uses the MIPS32 M4K core with 5-stage pipeline, hardware multiply/divide, and a single-cycle shadow register set for fast interrupt response. The dual CAN, USB-OTG, and Ethernet MAC make it suitable for connected-embedded applications where the MCU must manage multiple wired protocols concurrently without an external PHY bridge. DMA offloads memory-to-peripheral and peripheral-to-memory transfers, freeing the core for application code.
Typical applications include industrial Ethernet gateways, CAN-bridge automotive ECUs, USB Human Interface Devices, embedded web servers, and factory automation controllers. The combination of Ethernet + USB + dual CAN in a single 32-bit MCU reduces BOM and PCB area for connectivity-rich designs.
When designing with this part, pay attention to the BGA package - it requires a 4-layer PCB with laser-via fanout for reliable assembly. The MPLAB Harmony framework and XC32 compiler are the canonical toolchain. Decoupling must include 100 nF on every VDD/VSS pair and a bulk 4.7 uF tantalum near the analog supply.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing an engineer-ready reference for sourcing PIC32MX775F256L-80I/BG.
ドロップイン代替品: PIC32MX775F256L-80I/BG — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC32MX775F256L-80I/BG （同一形状・フットプリント） — 相違点: ADC, Package, USB, CAN, DMA Channels.
クイック比較ツール — 並列比較する代替部品を選択:
PIC32MX775F256LT-80I/BG
✅ ドロップイン✓ 在庫あり
$7.65 / 個
データシートを見る →PIC32MX775F256L-80V/BG
✅ ドロップイン✓ 在庫あり
$6.55 / 個
データシートを見る →PIC32MX675F256L-80I/BG
✅ ドロップイン✓ 在庫あり
$6.2 / 個
データシートを見る →PIC32MX695F512L-80I/BG
✅ ドロップイン✓ 在庫あり
$14.85 / 個
データシートを見る →PIC32MX575F256L-80I/BG
✅ ドロップイン✓ 在庫あり
$6.12 / 個
データシートを見る →PIC32MX764F128L-I/BG
✅ ドロップイン✓ 在庫あり
$6.8 / 個
データシートを見る →PIC32MX775F256L-80I/BG 最大定格＆電気的特性
| Core Architecture | MIPS32 M4K |
| データバス幅 | 32-bit |
| Maximum Clock Speed | 80 MHz |
| Program Memory Size | 256 KB Flash |
| RAM Size | 64 KB SRAM |
| 電源電圧 | 2.3 V to 3.6 V |
| I/O Pins | 83 |
| パッケージ | 121-TFBGA (10x10 mm) |
| 動作温度 | -40C to +85C (Industrial) |
| Integrated Ethernet | 10/100 MAC (no PHY) |
| USB | USB-OTG full-speed PHY |
| CAN | 2x CAN 2.0b |
| DMA Channels | 8 |
| ADC | 10-bit |
| 実装タイプ | Surface Mount (BGA) |
| RoHS ステータス | Compliant (lead-free per DigiKey listing) |
PIC32MX775F256L-80I/BG 121-tfbga (10x10 mm) ピン配置ガイド
PIC32MX775F256L-80I/BG (121-tfbga (10x10 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: PIC32MX775F256L-80I/BG.
詳細は データシート をご参照ください。
主な用途
PIC32MX775F256L-80I/BG の用途: 6 件s: Industrial Ethernet Gateway, Automotive CAN-Bridge ECU, USB Human Interface Device, Embedded Web Server / SCADA Node, Factory Automation Controller, Data Acquisition with USB Streaming.
Industrial Ethernet Gateway
The PIC32MX775F256L-80I/BG is a natural fit for industrial Ethernet gateways because it integrates a 10/100 Mbps MAC, dual CAN 2.0b controllers, and USB-OTG on a single 32-bit MIPS core. In a typical Modbus TCP-to-CAN bridge design, the MCU reads CAN frames at 1 Mbaud, packages them into TCP segments, and pushes them through the Ethernet MAC with DMA offload - the 80 MHz clock and 64 KB RAM allow full-duplex line-rate bridging without external FIFO chips. Connect an external PHY (KSZ8041 or DP83848) to the MII pins and add an RJ45 with integrated magnetics to complete the hardware. Unlike dual-chip solutions that pair an MCU with a network processor, this single-chip design reduces BOM and PCB footprint for panel-mount DIN-rail gateways.
おすすめ
Automotive CAN-Bridge ECU
Dual CAN 2.0b controllers and an industrial temperature grade make the PIC32MX775F256L-80I/BG suitable for automotive CAN-bridge ECUs that translate between body-domain CAN buses. At 80 MHz the core can sustain 1 Mbaud on both CAN interfaces simultaneously while running application-level diagnostics. Pair the MCU with an MCP2551 or TJA1050 CAN transceiver per channel and add ESD protection on the bus lines. The 64 KB RAM accommodates a 256-message CAN receive buffer plus the OBD-II diagnostic stack. Compared to a dedicated CAN bridge ASIC, this approach allows firmware-customizable message routing and post-EOL feature additions, which is valuable for low-volume specialty vehicles.
おすすめ
USB Human Interface Device
The PIC32MX775F256L-80I/BG's integrated USB-OTG full-speed PHY and 32-bit performance make it ideal for USB HID peripherals such as industrial keypads, custom HID-class instruments, and USB-to-UART bridges. The USB peripheral handles enumeration, suspend/resume, and endpoint management entirely in hardware, freeing the MIPS core for application logic. At 80 MHz the device can implement a USB-to-UART bridge at 921600 baud with zero character loss while servicing other peripherals. The 256 KB Flash holds the USB stack plus custom descriptors, and the 83 GPIO pins map to button matrices and LED indicators. Compare with the PIC32MX675F256L which removes USB-OTG - if you need USB, the 775 variant is the correct part.
おすすめ
Embedded Web Server / SCADA Node
The PIC32MX775F256L-80I/BG serves well in embedded-web-server and SCADA-node designs where a small TCP/IP stack (e.g., Microchip Harmony TCP/IP Lite) presents a web UI for sensor data and remote relay control. The 80 MHz core and 64 KB SRAM handle a few simultaneous HTTP sockets plus the underlying Modbus/TCP or DNP3 master. Connect the integrated Ethernet MAC to a PHY and RJ45, then expose plant-floor sensors over a password-protected web interface. Compared with a Raspberry Pi-class Linux SBC, this bare-metal approach delivers deterministic boot time, no filesystem corruption risk, and an industrial operating-temperature range. The same MCU can drive an SPI TFT display for local HMI without taxing the network stack.
おすすめ
Factory Automation Controller
The PIC32MX775F256L-80I/BG fits into factory-automation PLC and motion-controller roles thanks to its combined Ethernet, dual CAN, USB-OTG, and 83 GPIO pins. The MCU can simultaneously run a CANopen slave interface to a master controller, stream data over Ethernet to a SCADA host, present a USB service interface for firmware updates, and drive up to five PWM channels for stepper or servo motors. The 80 MHz clock and 5-stage pipeline execute PID loops and fieldbus state machines deterministically; the 64 KB RAM stores a CANopen object dictionary and runtime parameters. Pin-compatible variants like the PIC32MX695F512L offer 512 KB Flash for more code-intensive applications.
おすすめ
Data Acquisition with USB Streaming
The PIC32MX775F256L-80I/BG is well-suited for USB-streaming data-acquisition front-ends because the 10-bit ADC plus DMA channels move samples into RAM while the USB-OTG endpoint streams them to a host PC in real time. At 500 ksps aggregate across the ADC channels, the DMA + USB pipeline sustains lossless streaming over USB full-speed (12 Mbps). A 64 KB RAM buffer holds a 16 ms window at full sample rate. The MCU also presents Ethernet for networked deployments and CAN for chassis integration, allowing one platform to cover USB benchtop, networked test, and automotive test use cases.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC32MX775F256L-80I/BG — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC32MX775F256LT-80I/BG | PIC32MX775F256L-80V/BG | PIC32MX675F256L-80I/BG | PIC32MX695F512L-80I/BG | PIC32MX575F256L-80I/BG |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-TFBGA (10x10) | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same |
| Core | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Max Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 512 KB | 256 KB |
| RAM | 64 KB | 64 KB | 64 KB | 64 KB | 128 KB | 64 KB |
| Ethernet | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | 10/100 MAC | None |
| USB | USB-OTG FS PHY | USB-OTG FS PHY | USB-OTG FS PHY | None | None | None |
| CAN | 2x CAN 2.0b | 2x CAN 2.0b | 2x CAN 2.0b | 2x CAN 2.0b | 2x CAN 2.0b | None |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +105C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
主な差別化要因
- Integrated 10/100 MAC + USB-OTG + dual CAN + 8-channel DMA （vs PIC32MX575F256L-80I/BG)
- Tape-and-reel / extended temperature drop-in options （vs PIC32MX775F256LT-80I/BG and PIC32MX775F256L-80V/BG)
- Cost-optimized drop-in for designs that don't use USB-OTG （vs PIC32MX675F256L-80I/BG)
設計ノート
Estimated: the 121-TFBGA package at 10x10 mm has a 0.8 mm ball pitch with a 0.4 mm ball diameter. Successful reflow requires a 4-layer PCB with laser-drilled micro-vias under the BGA fanout, 0.1 mm trace/space design rules, and ENIG surface finish. Hand-soldering the /BG variant is impractical - prototype with the /PF (TQFP-100) variant, then move to BGA for production.
Estimated: at 80 MHz the core draws approximately 60 mA from the internal regulator at 3.3 V, rising to ~85 mA with all peripherals active. Place one 100 nF ceramic on every VDD/VSS pair (there are many on a 121-BGA), plus a 4.7 uF X5R bulk near the analog AVDD pins and a separate ferrite bead to isolate noisy digital VDD from analog AVDD. USB PHY VDDUSB needs its own 100 nF + bulk capacitor.
Keep the 50 MHz Ethernet MII traces under 50 mm and length-match the RX/TX pairs to within 25 mm. The USB D+/D- traces must be 90-ohm differential, max 50 mm, and routed over a continuous ground plane. JTAG/Trace pins (TCK/TMS/TDI/TDO/TRST) require 4.7 kohm pull-ups on TCK, TMS, TDI and TRST per the family reference manual. Place the 8 MHz crystal within 5 mm of the OSC1/OSC2 pins with a grounded guard ring.
Do not exceed 3.6 V on any I/O pin, including USB D+/D- during hot-plug events - add TVS diodes if the design will see ESD or cable transients. The /BG variant does not have all 83 I/O lines bonded out for every peripheral function; some peripherals (especially Ethernet RMII vs MII) require specific pin remapping. Always validate the exact pinout against the datasheet chapter 2 before layout. Programming the configuration bits (DEVCFG0/1/2/3) is mandatory before the part will run user firmware.
コンプライアンス情報
RoHS-compliant and lead-free per DigiKey product listing. Not AEC-Q100 qualified - for AEC-Q100 automotive use, contact Microchip about the AEC-Q100-grade PIC32 variants. REACH and conflict-minerals compliance statement available on the Microchip product page.
