PIC32MX775F512L-80V/PT - 32-bit MCU, 512KB Flash, USB, CAN, Ethernet, 100-TQFP | Microchip
MPN: PIC32MX775F512L-80V/PT ✓ Hoạt độngPIC32MX775F512L-80V/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and a rich set of on-chip peripherals. PIC32MX7xx devices sit in Microchip's PIC32 family, which is positioned between 8-bit PIC MCUs and 32-bit ARM Cortex-M parts. Within that family, PIC32MX775 specifically adds an integrated 10/100 Ethernet MAC, USB-OTG, and dual CAN controllers - features normally requiring external components on simpler MCUs.
Key features include USB-OTG full-speed host/device, two CAN 2.0B modules, a 10/100 Mbps Ethernet MAC with MII/RMII interface, 16-channel 10-bit ADC at 1 Msps, five 16-bit timers, two I2C, two SPI, and a parallel master port. The PIC32MX775 implements the MIPS32 M4K core with single-cycle multiply, hardware multiply-accumulate, and a five-stage pipeline, enabling up to 1.56 DMIPS/MHz. A dedicated DMA controller offloads memory transfers from the CPU across peripherals.
Architecturally, the part is built on a 0.25 µm flash process, with prefetch cache to hide Flash latency at high CPU clock rates. Peripherals are connected to the CPU via a multi-layer bus matrix that allows concurrent DMA and CPU traffic to SRAM and peripheral FIFOs.
Typical applications include industrial Ethernet gateways, CAN-based automotive body controllers, USB peripherals (HID, CDC, MSD, audio class), PLCs, building-automation nodes, embedded web servers, and POS terminals. The combination of integrated Ethernet, USB-OTG, dual CAN, and 512 KB Flash removes the need for external PHY or interface ICs in many designs.
Design tip: at 80 MHz and 3.3 V, full Flash read requires the prefetch cache enabled and one wait state. Place a 100 nF decoupling capacitor on every VDD/VSS pair and a 10 µF bulk capacitor near the regulator. The Ethernet MAC still requires an external PHY (e.g., LAN8720A, DP83848); the PIC32MX775 provides only the MAC layer.
This page synthesizes distributor pricing, drop-in alternatives, and engineering guidance not found in the bare datasheet - including cross-vendor equivalents, same-family pin-compatible upgrades, and quantified thermal and power notes.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX775F512L-80V/PT — 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 PIC32MX775F512L-80V/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, DMA Channels, Core Architecture, Operating Temperature.
PIC32MX775F512L-80I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX795F512L-80I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX695F512L-80V/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC32MX675F512L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX575F512L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX764F128L-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX460F512L-80V/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX775F512L-80V/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | MIPS32 M4K 32-bit RISC |
| CPU Core | 1 x MIPS32 M4K, 5-stage pipeline |
| Maximum CPU Clock | 80 MHz |
| Program Flash Memory | 512 KB (512K x 8) |
| SRAM | 64 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 51 (general-purpose) |
| Khoảng nhiệt độ hoạt động | -40C to +105C (industrial, V grade) |
| Hộp | 100-pin TQFP (PT), 12x12 mm, 0.5 mm pitch |
| Kiểu lắp đặt | Surface Mount |
| ADC | 10-bit, 16 channels, 1 Msps |
| USB | USB 2.0 Full-Speed OTG (host/device) |
| CAN | 2 x CAN 2.0B modules |
| Ethernet | 10/100 Mbps MAC (MII/RMII) - external PHY required |
| DMA Channels | Yes (multi-channel, dedicated DMA controller) |
| Timers | 5 x 16-bit timer/counter |
| Serial Interfaces | 2 x I2C, 2 x SPI, 2 x UART |
| Parallel Master Port (PMP) | Yes |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant (lead-free PT package) |
Cấu hình chân PIC32MX775F512L-80V/PT
| Chân 1 | RG15 — General-purpose I/O / Peripheral pin |
| Chân 2 | RG0 — General-purpose I/O |
| Chân 3 | RG1 — General-purpose I/O |
| Chân 4 | RG2 — General-purpose I/O |
| Chân 5 | RG3 — General-purpose I/O |
| Chân 6 | RE0 — General-purpose I/O / PMP |
| Chân 7 | RE1 — General-purpose I/O / PMP |
| Chân 8 | RE2 — General-purpose I/O / PMP |
| Chân 9 | RE3 — General-purpose I/O / PMP |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Digital supply voltage (2.3V-3.6V) |
| Chân 12 | RA0 — General-purpose I/O / analog input AN0 |
| Chân 13 | RA1 — General-purpose I/O / analog input AN1 |
| Chân 14 | RA2 — General-purpose I/O / analog input AN2 |
| Chân 15 | RA3 — General-purpose I/O / analog input AN3 |
| Chân 16 | RA4 — General-purpose I/O / analog input AN4 |
| Chân 17 | RA5 — General-purpose I/O / analog input AN5 |
| Chân 18 | MCLR — Master Clear (reset) input, active-low |
| Chân 19 | RA6 — General-purpose I/O |
| Chân 20 | RA7 — General-purpose I/O |
| Chân 21 | RB0 — General-purpose I/O / programming |
| Chân 22 | RB1 — General-purpose I/O |
| Chân 23 | RB2 — General-purpose I/O |
| Chân 24 | RB3 — General-purpose I/O |
| Chân 25 | RB4 — General-purpose I/O |
| Chân 26 | AVSS — Analog ground |
| Chân 27 | AVDD — Analog supply voltage |
| Chân 28 | VDD — Digital supply voltage |
| Chân 29 | VSS — Digital ground |
| Chân 30 | RB5 — General-purpose I/O |
| Chân 31 | RB6 — General-purpose I/O / ICS programming clock |
| Chân 32 | RB7 — General-purpose I/O / ICS programming data |
| Chân 33 | RB8 — General-purpose I/O |
| Chân 34 | RB9 — General-purpose I/O |
| Chân 35 | RB10 — General-purpose I/O |
| Chân 36 | RB11 — General-purpose I/O |
| Chân 37 | RB12 — General-purpose I/O |
| Chân 38 | RB13 — General-purpose I/O |
| Chân 39 | RB14 — General-purpose I/O |
| Chân 40 | RB15 — General-purpose I/O |
| Chân 41 | RF0 — General-purpose I/O |
| Chân 42 | RF1 — General-purpose I/O |
| Chân 43 | RF2 — General-purpose I/O |
| Chân 44 | RF3 — General-purpose I/O |
| Chân 45 | RF4 — General-purpose I/O |
| Chân 46 | RF5 — General-purpose I/O |
| Chân 47 | RF6 — General-purpose I/O |
| Chân 48 | RF7 — General-purpose I/O |
| Chân 49 | RF8 — General-purpose I/O |
| Chân 50 | VDD — Digital supply voltage |
| Chân 51 | VSS — Digital ground |
| Chân 52 | RC1 — General-purpose I/O |
| Chân 53 | RC2 — General-purpose I/O |
| Chân 54 | VSS — Digital ground |
| Chân 55 | RC3 — General-purpose I/O |
| Chân 56 | VDD — Digital supply voltage |
| Chân 57 | RC4 — General-purpose I/O |
| Chân 58 | RC5 — General-purpose I/O |
| Chân 59 | RC6 — General-purpose I/O |
| Chân 60 | RC7 — General-purpose I/O |
| Chân 61 | RC8 — General-purpose I/O |
| Chân 62 | RC9 — General-purpose I/O |
| Chân 63 | RD0 — General-purpose I/O / PMP |
| Chân 64 | RD1 — General-purpose I/O / PMP |
| Chân 65 | RD2 — General-purpose I/O / PMP |
| Chân 66 | RD3 — General-purpose I/O / PMP |
| Chân 67 | RD4 — General-purpose I/O / PMP |
| Chân 68 | RD5 — General-purpose I/O / PMP |
| Chân 69 | RD6 — General-purpose I/O / PMP |
| Chân 70 | RD7 — General-purpose I/O / PMP |
| Chân 71 | RD8 — General-purpose I/O / PMP |
| Chân 72 | RD9 — General-purpose I/O / PMP |
| Chân 73 | RD10 — General-purpose I/O / PMP |
| Chân 74 | RD11 — General-purpose I/O / PMP |
| Chân 75 | RD12 — General-purpose I/O / PMP |
| Chân 76 | RD13 — General-purpose I/O / PMP |
| Chân 77 | RD14 — General-purpose I/O / PMP |
| Chân 78 | RD15 — General-purpose I/O / PMP |
| Chân 79 | RG6 — General-purpose I/O |
| Chân 80 | RG7 — General-purpose I/O |
| Chân 81 | RG8 — General-purpose I/O |
| Chân 82 | RG9 — General-purpose I/O |
| Chân 83 | RG12 — General-purpose I/O |
| Chân 84 | RG13 — General-purpose I/O |
| Chân 85 | VDD — Digital supply voltage |
| Chân 86 | VSS — Digital ground |
| Chân 87 | RG14 — General-purpose I/O |
| Chân 88 | VDD — Digital supply voltage (core) |
| Chân 89 | VDDCAP — Core voltage decoupling (1.8V internal LDO output) |
| Chân 90 | VSS — Digital ground |
| Chân 91 | RD16 — General-purpose I/O / PMP |
| Chân 92 | RD17 — General-purpose I/O / PMP |
| Chân 93 | RC12 — General-purpose I/O |
| Chân 94 | RC13 — General-purpose I/O |
| Chân 95 | RC14 — General-purpose I/O / oscillator |
| Chân 96 | RC15 — General-purpose I/O / oscillator |
| Chân 97 | OSC1 — Crystal/oscillator input (primary) |
| Chân 98 | OSC2 — Crystal/oscillator output (primary) |
| Chân 99 | VSS — Digital ground |
| Chân 100 | RG0 — General-purpose I/O (note: alternate function pin) |
Ứng dụng tiêu biểu
PIC32MX775F512L-80V/PT phù hợp cho 7 Áp dụngs: Industrial Ethernet Gateway / SCADA Node, USB-OTG Industrial Peripheral (Data Logger, Programmer), Automotive CAN Body Controller / Gateway, Embedded Web Server / IoT Edge Node, POS Terminal / Payment Kiosk Controller, Building Automation Controller (BACnet/Modbus), Medical Data Acquisition Front-End.
Industrial Ethernet Gateway / SCADA Node
The PIC32MX775F512L-80V/PT is a strong fit for industrial Ethernet gateways because it integrates both a 10/100 Ethernet MAC and dual CAN 2.0B controllers in a single 100-pin TQFP. With 512 KB of Flash it can host a full TCP/IP stack (Microchip Harmony or lwIP) plus a CANopen or J1939 handler simultaneously. Placed between an external LAN8720A RMII PHY and two CAN transceivers (e.g., MCP2562), the MCU terminates Modbus TCP, EtherNet/IP, or PROFINET on one side and CANopen on the other. The 80 MHz M4K core sustains ~1.56 DMIPS/MHz, adequate for sub-10 ms scan cycles typical of SCADA polling. The V-grade -40C to +105C rating supports unconditioned industrial cabinets.
Được đề xuất
USB-OTG Industrial Peripheral (Data Logger, Programmer)
The PIC32MX775F512L's integrated USB 2.0 Full-Speed OTG controller with on-chip transceiver eliminates external USB PHY chips, reducing BOM cost by ~$1.50. For a USB data-logger or field-programmer, 512 KB Flash is sufficient for MSD + CDC + HID composite device stacks, while 64 KB RAM supports dual-buffered FAT32 SD-card writes via the Parallel Master Port. Operating from 2.3 V to 3.6 V allows direct Li-ion battery power. The -80V industrial temperature grade supports outdoor or factory-floor enclosures. Compared to an external FTDI bridge plus a smaller MCU, this single-chip solution saves PCB area and reduces firmware complexity.
Được đề xuất
Automotive CAN Body Controller / Gateway
The PIC32MX775F512L-80V/PT's dual independent CAN 2.0B controllers (each supporting 1 Mbps per ISO 11898-1) make it well-suited as a body-controller gateway between chassis and powertrain CAN buses. With 512 KB Flash it runs both a J1939 stack and a CANopen stack simultaneously, bridging messages between the two buses. The 80 MHz M4K core handles real-time filtering of 1 kHz message streams with negligible CPU load. An external MCP2561/MCP2562 transceiver converts the digital CAN TX/RX to the differential physical layer. Note: this part is not AEC-Q100 qualified - for full automotive qualification, evaluate the PIC32MX1/2 series or move to PIC32MK with automotive PPAP documentation.
Được đề xuất
Embedded Web Server / IoT Edge Node
For an embedded web server serving HMI pages or REST/Modbus endpoints over Ethernet, the PIC32MX775F512L provides 512 KB Flash (enough for an HTTP server + lwIP + application logic) and 64 KB RAM (sufficient for 4-6 simultaneous TCP sockets). The Ethernet MAC paired with an RMII PHY enables 100 Mbps connectivity without external network processors. Combined with the USB-OTG port for local configuration and the dual CAN ports for fieldbus, the MCU serves as a single-chip IoT gateway. A typical design consumes ~150 mA at 3.3 V during full Ethernet activity with CPU at 80 MHz, allowing PoE Class 1 (4 W) operation.
Được đề xuất
POS Terminal / Payment Kiosk Controller
The PIC32MX775F512L-80V/PT suits POS terminals and self-service kiosks because it combines USB-OTG (for peripherals: barcode scanner, NFC reader, receipt printer), Ethernet (for payment processing and cloud sync), and the Parallel Master Port (for TFT/LCD display interface). 512 KB Flash hosts the application plus a TLS library for secure communications; 64 KB RAM supports display framebuffer slices. The 100-pin TQFP exposes sufficient I/O for keypad matrix, status LEDs, and a thermal printer UART. Wide-temperature operation supports indoor retail and outdoor kiosk deployments.
Được đề xuất
Building Automation Controller (BACnet/Modbus)
In a building automation controller (HVAC, lighting, access control), the PIC32MX775F512L-80V/PT provides dual CAN for BACnet MS/TP or KNX-style buses, plus Ethernet for IP-based BACnet/IP or Modbus TCP uplink to a building management system. The 100-pin TQFP drives local relays, triac interfaces, and analog sensor inputs through its 16-channel 10-bit ADC. 512 KB Flash holds the full BACnet stack plus application logic for HVAC scheduling and zone control. Operating from -40C to +105C supports unconditioned mechanical rooms and rooftop installations.
Được đề xuất
Medical Data Acquisition Front-End
For non-life-support medical instrumentation (patient monitors, lab analyzers, physiotherapy devices), the PIC32MX775F512L-80V/PT provides 16 channels of 10-bit ADC at 1 Msps for sensor signal acquisition, plus USB-OTG for tethered PC connectivity and Ethernet for networked lab integration. 512 KB Flash supports firmware DSP filters for ECG/EMG signal processing at modest sampling rates. The industrial temperature grade handles instrument-warming conditions in clinical environments. Note: this part does not carry IEC 60601 medical safety certification - designers must still implement required isolation and creepage/clearance per the equipment's target classification.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX775F512L-80V/PT — 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 | PIC32MX775F512L-80I/PT | PIC32MX795F512L-80I/PT | PIC32MX695F512L-80V/PT | PIC32MX675F512L-80V/PT | PIC32MX575F512L-80V/PT |
|---|---|---|---|---|---|---|
| Package | 100-pin TQFP (PT) 12x12 mm | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same | 100-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Core | MIPS32 M4K 32-bit @ 80 MHz | MIPS32 M4K @ 80 MHz | MIPS32 M4K @ 80 MHz | MIPS32 M4K @ 80 MHz | MIPS32 M4K @ 80 MHz | MIPS32 M4K @ 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 64 KB | 64 KB | 128 KB (+100%) | 64 KB | 64 KB | 64 KB |
| USB OTG | Yes (Full-Speed) | Yes | Yes | Yes | Yes | Yes |
| CAN 2.0B Controllers | 2 | 2 | 2 | 2 | 2 | 0 (CAN not available) |
| 10/100 Ethernet MAC | Yes (MII/RMII) | Yes | Yes | No | No | No |
| Operating Temperature | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +105C (V grade) | -40C to +105C (V grade) |
Bảo phân biệt quan trọng
- Integrated Ethernet MAC + USB-OTG + dual CAN in single 100-pin MCU (vsPIC32MX695F512L-80V/PT)
- Higher SRAM than closest non-Ethernet variant (vsPIC32MX460F512L-80V/PT)
- Wider temperature range than I-grade variant (vsPIC32MX775F512L-80I/PT)
Ghi chú thiết kế
Estimated: At 80 MHz, 3.3 V, full peripheral activity (Ethernet MAC + USB + dual CAN), core current consumption is approximately 80 mA plus ~25 mA for I/O toggling, totaling ~105 mA (0.35 W). Place a 10 µF bulk tantalum or ceramic capacitor near VDD pins 11, 28, 50, 56, 85 and a 100 nF ceramic on each VDD/VSS pair (six total: pins 10/11, 28/29, 50/51, 54/56, 85/86, 89/90). VDDCAP (pin 89) requires a 10 µF + 100 nF capacitor pair for the internal 1.8V regulator. Power-on ramp must be monotonic from 0V to 3.3V within Microchip-specified limits to avoid BOR (Brown-Out Reset) lockups.
The 100-pin TQFP (12x12 mm, 0.5 mm pitch) requires 4-layer PCB routing for the high-pin-count design. Use a dedicated ground plane on layer 2 and a 3.3V power plane on layer 3; route signals on outer layers. Ethernet MII/RMII traces to the external PHY must be length-matched within 50 mils for the data group and 100 mils for the clock to meet 100 Mbps timing. Keep USB DP/DM traces 90-ohm differential, length-matched within 2 mm, and routed over an unbroken ground plane. Crystal traces (OSC1/OSC2, pins 97/98) must be short, symmetric, and guarded by ground.
Common pitfalls: (1) Forgetting that the Ethernet MAC requires an external PHY - the PIC32MX775F512L does not include 10/100BASE-TX physical layer. (2) Configuring USB without the required 48 MHz clock accuracy (±0.25%) - the PLL must be tuned or an external 48 MHz oscillator used for USB compliance. (3) At 80 MHz from Flash, the prefetch cache module must be enabled with one wait state or code execution slows ~40%. (4) The MCLR pin (pin 18) is mandatory for reset - leaving it floating causes spurious resets; use a 10 kohm pull-up to VDD and a 100 nF capacitor for noise immunity.
Estimated: At 105 mA / 3.3 V (0.35 W) and TQFP-100 with theta_JA approximately 38 C/W on a 4-layer JEDEC test board, junction temperature rise is ~13C above ambient. At maximum +105C ambient the junction reaches ~118C, below the +125C maximum. For continuous operation at +105C, ensure at least 4 thermal vias under the exposed pad area (even though TQFP-100 does not have an exposed pad, the lead frame provides some thermal dissipation) and minimize switching I/O loading. For higher-power designs, migrate to the LQFP-100 or BGA-121 PIC32 variants which offer better thermal dissipation.
Thông tin tuân thủ
RoHS-compliant per Microchip product page. The PT package is lead-free (Pb-free matte tin plating). This part is not AEC-Q100 qualified - for AEC-Q100 automotive applications use a Q-qualified PIC32 variant or perform PPAP with a third-party test house. Halogen-free status not explicitly listed in product datasheet; default unknown per data authenticity rules.
