PIC32MX775F256L-80I/PF - 80MHz 32-bit MCU 256KB Flash | Microchip
部品番号: PIC32MX775F256L-80I/PF ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $11.68 | $11.68 |
| 10 | $10.85 | $108.50 |
| 100 | $9.62 | $962.00 |
| 500 | $8.75 | $4,375.00 |
| 1,000 | $7.94 | $7,940.00 |
PIC32MX775F256L-80I/PF 概要
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory (Flash), data memory (SRAM), and a rich set of peripherals such as timers, communication interfaces, ADCs, and GPIO into a single chip. The PIC32MX architecture belongs to the broader category of 32-bit embedded microcontrollers (hypernym: MCU -> microcontroller -> embedded processor -> semiconductor) and is designed for connected, real-time, and graphically-rich embedded systems where both deterministic control and high-bandwidth connectivity are required.
Key differentiating specifications of this part include 256 KB of self-programmable Flash, 64 KB SRAM, 16-bit parallel master port (PMP) for graphics or external memory, a 10-bit 1 Msps ADC with up to 16 channels, five 16-bit timers/counters, and operation across 2.3V to 3.6V with industrial-grade -40C to +85C temperature range. The 'L' (large pin count) variant offers the maximum 100-pin I/O complement for the family.
Architecturally, the PIC32MX775 executes instructions through a 5-stage pipeline with Harvard bus architecture, supporting single-cycle multiplication and hardware divide for high computational throughput. Integrated DMA offloads USB, Ethernet, and CAN transfers from the CPU, freeing cycles for application logic. The USB 2.0 OTG controller embeds the physical transceiver, eliminating external PHY cost and board area.
Typical applications include industrial Ethernet gateways, building automation controllers, USB peripherals and HID devices, automotive infotainment and telematics interfaces, CAN-based industrial sensor hubs, and point-of-sale terminals. The combination of Ethernet + USB OTG + dual CAN positions the part uniquely for bridged industrial networks.
When designing in this part, ensure the 2.5V/3.3V core supply decoupling is robust - use at least 0.1uF and 10uF ceramic capacitors close to every VDD/AVDD pin. Because the device is supplied in 100-pin TQFP, hand-rework is straightforward, but high-density multilayer routing is recommended to keep analog and digital grounds properly partitioned.
This page synthesizes distributor pricing, drop-in Microchip and cross-brand alternatives, and practical design notes not consolidated in the manufacturer datasheet.
ドロップイン代替品: PIC32MX775F256L-80I/PF — 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/PF （同一形状・フットプリント） — 相違点: ADC, USB, CAN, DMA Channels, Package.
クイック比較ツール — 並列比較する代替部品を選択:
PIC32MX795F512L-80I/PF
✅ ドロップイン✓ 在庫あり
$9.95 / 個
データシートを見る →PIC32MX764F128L-I/PF
✅ ドロップイン✓ 在庫あり
$6.69 / 個
データシートを見る →PIC32MX775F256L-80I/PT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX675F512L-80I/PF
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX695F512L-80I/PF
✅ ドロップイン✓ 在庫あり
$7.95 / 個
データシートを見る →PIC32MX575F256L-80I/PF
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC32MX775F256L-80I/PF 最大定格＆電気的特性
| Core | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 80 MHz (105 DMIPS) |
| Program Memory (Flash) | 256 KB |
| Data Memory (SRAM) | 64 KB |
| 電源電圧 | 2.3 V to 3.6 V |
| 動作温度 | -40 C to +85 C (Industrial) |
| パッケージ | 100-pin TQFP (14x14 mm) |
| GPIO Count | 83 |
| Ethernet | 10/100 Mbps MAC with MII/RMII interface |
| USB | USB 2.0 Full-Speed OTG with integrated PHY |
| CAN | 2 x CAN 2.0b modules |
| DMA Channels | 8 |
| ADC | 10-bit, up to 16 channels, 1 Msps |
| Timers | 5 x 16-bit timers/counters |
| Parallel Master Port (PMP) | Yes (16-bit) |
| RoHS ステータス | Compliant |
PIC32MX775F256L-80I/PF 100-pin tqfp (14x14 mm) ピン配置ガイド
PIC32MX775F256L-80I/PF (100-pin tqfp (14x14 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/PF.
詳細は データシート をご参照ください。
主な用途
PIC32MX775F256L-80I/PF の用途: 6 件s: Industrial Ethernet Gateway, USB HID / Peripheral Device, CAN-Based Automotive Infotainment Module, Building Automation Controller, Point-of-Sale Terminal, Industrial Sensor Hub / IoT Edge Node.
Industrial Ethernet Gateway
The PIC32MX775F256L-80I/PF is engineered for industrial Ethernet gateways because it integrates a 10/100 MAC with MII/RMII alongside 8 DMA channels that offload packet transfers from the CPU, leaving headroom for Modbus TCP, EtherNet/IP, or PROFINET application stacks. Its 256 KB Flash accommodates a TCP/IP stack plus application logic and bootloader, while 64 KB SRAM is sufficient for socket buffers and TLS session data. Operating across -40C to +85C, it handles factory-floor thermal stress and supports 2.3V to 3.6V supply from industrial 24V rails after buck regulation.
おすすめ
USB HID / Peripheral Device
The PIC32MX775F256L-80I/PF is well suited to USB peripherals because its integrated USB 2.0 Full-Speed OTG controller embeds the physical transceiver, eliminating the cost and board area of an external PHY. With 83 GPIO and five 16-bit timers, the MCU can scan key matrices, drive RGB indicators, and handle HID reports concurrently. The 80 MHz core executes USB polling with ample margin, and 256 KB Flash comfortably hosts composite USB stacks (HID + CDC + vendor).
おすすめ
CAN-Based Automotive Infotainment Module
The PIC32MX775F256L-80I/PF is a strong fit for CAN-driven infotainment sub-modules because it integrates two independent CAN 2.0b controllers with 1024-message mailboxes, enabling gatewaying between body and chassis CAN buses. The industrial -40C to +85C range covers passenger compartment thermal envelopes, and the 100-pin TQFP provides ample GPIO for display backlight, button inputs, and rotary encoder interfaces. The 80 MHz MIPS M4K core executes J1939 or CANopen stacks without saturating.
おすすめ
Building Automation Controller
The PIC32MX775F256L-80I/PF is ideal for BACnet or Modbus building controllers because the 10/100 Ethernet MAC provides the network uplink, the dual CAN interfaces serve elevator or HVAC fieldbus segments, and the USB OTG allows technicians to attach configuration tools on the service port. The 16-bit Parallel Master Port can drive a character LCD or a small graphic panel for local status display. Wide 2.3V-3.6V supply tolerance aligns with 24V DC building distribution rails after buck conversion.
おすすめ
Point-of-Sale Terminal
The PIC32MX775F256L-80I/PF is well suited to POS terminals because it can simultaneously drive Ethernet for payment gateway backhaul, USB for the magnetic-stripe or NFC reader, CAN or UART for the cash drawer and receipt printer, and GPIO for keypad and buzzer. The 256 KB Flash stores the application plus secure boot, and 64 KB SRAM supports transaction buffers and TLS contexts. Industrial temperature grade suits the thermally variable retail floor.
おすすめ
Industrial Sensor Hub / IoT Edge Node
The PIC32MX775F256L-80I/PF is appropriate for edge sensor hubs that aggregate analog inputs via its 10-bit 1 Msps ADC (up to 16 channels) and publish results over Ethernet or USB. The 8 DMA channels support high-throughput ADC sampling without CPU intervention, while 256 KB Flash stores edge analytics, calibration tables, and communication stacks. The -40C to +85C industrial range and 100-pin TQFP form factor suit outdoor enclosures and DIN-rail mounted industrial assemblies.
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/PF — 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 | PIC32MX795F512L-80I/PF | PIC32MX764F128L-I/PF | PIC32MX675F512L-80I/PF | PIC32MX695F512L-80I/PF | PIC32MX575F256L-80I/PF |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (14x14 mm) | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same | 100-pin TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB | 512 KB | 128 KB | 512 KB | 512 KB | 256 KB |
| SRAM | 64 KB | 128 KB | 32 KB | 64 KB | 128 KB | 64 KB |
| Maximum Clock Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Ethernet MAC | Yes (10/100 MII/RMII) | Yes (10/100 MII/RMII) | Yes (10/100 MII/RMII) | No | Yes (10/100 MII/RMII) | No |
| USB OTG | Yes (integrated PHY) | Yes (integrated PHY) | Yes (integrated PHY) | Yes (integrated PHY) | Yes (integrated PHY) | Yes (integrated PHY) |
| CAN 2.0b | 2 modules | 2 modules | 2 modules | 2 modules | 0 modules | 0 modules |
| DMA Channels | 8 | 8 | 8 | 8 | 8 | 0 |
主な差別化要因
- Triple-protocol integration (Ethernet + USB OTG + dual CAN) on a single MIPS core （vs PIC32MX575F256L-80I/PF)
- 8 dedicated DMA channels for high-bandwidth peripheral offload （vs PIC32MX695F512L-80I/PF)
- Higher-density SRAM than lower-tier PIC32MX5/6 variants （vs PIC32MX764F128L-I/PF)
設計ノート
The PIC32MX775F256L-80I/PF operates from 2.3V to 3.6V and draws up to ~70 mA active at 80 MHz with all peripherals enabled. Provide at least one 10uF bulk tantalum or ceramic plus a 0.1uF decoupling capacitor on every VDD/AVDD pin pair, placed within 3 mm of the package. A ferrite bead between digital VDD and analog AVDD reduces switching-noise coupling into the ADC reference rail; if the Ethernet MII bus runs at 25 MHz or 50 MHz, keep the PHY on a separate analog supply island.
In the 100-pin TQFP (14x14 mm), the thermal resistance theta_JA is approximately 39 C/W on a 4-layer JEDEC test board. At full 80 MHz active current of ~70 mA from 3.3V, internal dissipation is roughly 230 mW, yielding a junction-to-ambient rise of about 9 C above ambient - well within the -40C to +85C operating range for industrial designs. For closed enclosures, verify with a thermal probe in worst-case ambient.
Route the Ethernet MII or RMII signals as a tightly-matched group with 50 ohm impedance and length-matched within 25 mils, since these buses run at 25 MHz or 50 MHz. Place the termination and bias resistors for the USB D+/D- lines as close as possible to the MCU. Maintain at least a 4x via stitching pattern around the chip ground pad, and split the analog ground island only if your ADC accuracy requires it - otherwise use a single continuous ground pour under the part.
Do not confuse the PIC32MX775F256L-80I/PF (PF = TQFP tray, industrial) with the /PT variant (TQFP tape-and-reel) or the /MR variant (QFN), as the pinouts differ. Do not apply 5V to any GPIO - the part is 3.3V tolerant only and ESD protection on VDD will not survive 5V stress. Always run the MPLAB Harmony configuration tool to generate the proper peripheral initialization code; do not attempt manual register setup without consulting the family reference manual section 2.
コンプライアンス情報
RoHS and lead-free confirmed per Microchip product page and TQFP package marking. Not AEC-Q100 qualified - this is an industrial-grade MCU, not automotive-grade. Halogen-free status not explicitly stated in available data.
