PIC32MX795F512LT-80I/TL - 32-Bit 80MHz MCU 512KB | Microchip
MPN: PIC32MX795F512LT-80I/TL ✓ Hoạt độngPIC32MX795F512LT-80I/TL Tóm tắt
A microcontroller unit (MCU) is a self-contained computer on a single chip that combines a processor core, program memory, data memory, and configurable peripherals. The PIC32MX795F512L sits in the 32-bit MCU class, above 8-bit and 16-bit devices, and below application processors such as the Cortex-A family. Within the Microchip PIC32MX5/6/7 series, it is the connectivity flagship, adding Ethernet MAC and dual CAN to the MIPS32 M4K pipeline.
Key differentiators include the integrated 10/100 Ethernet MAC with dedicated DMA, USB 2.0 full-speed OTG with an on-chip transceiver, dual CAN 2.0B modules, and 16-channel 10-bit ADC sampling at 1 Msps. The 512 KB Flash and 128 KB SRAM support RTOS-based applications and TCP/IP stacks without external memory.
The M4K core uses a 5-stage pipeline with a single-cycle 32x16 MAC, delivering 1.56 DMIPS/MHz. The peripheral pin select (PPS) feature remaps digital I/O to reduce PCB routing constraints, while the 8-channel DMA controller offloads data movement from the CPU.
Typical applications include industrial Ethernet gateways, CAN-to-Ethernet protocol bridges, motor control with field-oriented control, USB device/host instrumentation, and building automation controllers. The 2.3 V to 3.6 V operating range and -40C to +85C industrial temperature grade suit factory-floor environments.
When designing with this device, place the 0.1 uF decoupling capacitors within 5 mm of each VDD pin and keep the Ethernet differential pairs at 100 ohm impedance. The VTLA package requires a reflow profile matched to its exposed pad for reliable thermal and electrical grounding.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, replacement, and layout decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC32MX795F512LT-80I/TL — 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 PIC32MX795F512LT-80I/TL (cùng hình factor và footprint) — khác nhau ở ADC, USB, Package, Ethernet, Operating Temperature.
PIC32MX795F512L-80I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC32MX695F512LT-80I/TL
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Xem tài liệu →PIC32MX795F512LT-80I/TL Tỷ lệ tối đa & tính chất điện
| Core Processor | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 80 MHz |
| Performance | 1.56 DMIPS/MHz |
| Program Memory (Flash) | 512 KB (512K x 8) |
| SRAM | 128 KB |
| Boot Flash | 12 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 124-pin VTLA (TL) 9x9 mm |
| Ethernet | 10/100 Mbit MAC with DMA |
| USB | USB 2.0 Full-Speed OTG with on-chip transceiver |
| CAN | 2x CAN 2.0B controllers |
| ADC | 16-channel 10-bit, 1 Msps |
| Serial Interfaces | 6x UART, 4x SPI, 5x I2C |
| DMA Channels | 8 |
| Timers | 5x 16-bit, 2x 32-bit |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC32MX795F512LT-80I/TL
| Chân 1 | VDD — Power supply |
| Chân 2 | VSS — Ground |
| Chân 3 | RA0 — Port A bit 0 / analog input |
| Chân 4 | RA1 — Port A bit 1 / analog input |
| Chân 5 | RB0 — Port B bit 0 |
| Chân 6 | RB1 — Port B bit 1 |
| Chân 7 | RB2 — Port B bit 2 |
| Chân 8 | RB3 — Port B bit 3 |
| Chân 9 | RB4 — Port B bit 4 |
| Chân 10 | RB5 — Port B bit 5 |
| Chân 11 | RB6 — Port B bit 6 |
| Chân 12 | RB7 — Port B bit 7 |
| Chân 13 | RB8 — Port B bit 8 |
| Chân 14 | RB9 — Port B bit 9 |
| Chân 15 | RB10 — Port B bit 10 |
| Chân 16 | RB11 — Port B bit 11 |
| Chân 17 | RB12 — Port B bit 12 |
| Chân 18 | RB13 — Port B bit 13 |
| Chân 19 | RB14 — Port B bit 14 |
| Chân 20 | RB15 — Port B bit 15 |
| Chân 21 | RC1 — Port C bit 1 |
| Chân 22 | RC2 — Port C bit 2 |
| Chân 23 | RC3 — Port C bit 3 |
| Chân 24 | RC4 — Port C bit 4 |
| Chân 25 | RC5 — Port C bit 5 |
| Chân 26 | RC6 — Port C bit 6 |
| Chân 27 | RC7 — Port C bit 7 |
| Chân 28 | RC8 — Port C bit 8 |
| Chân 29 | RC9 — Port C bit 9 |
| Chân 30 | VDD — Power supply |
| Chân 31 | VSS — Ground |
| Chân 32 | RD0 — Port D bit 0 |
| Chân 33 | RD1 — Port D bit 1 |
| Chân 34 | RD2 — Port D bit 2 |
| Chân 35 | RD3 — Port D bit 3 |
| Chân 36 | RD4 — Port D bit 4 |
| Chân 37 | RD5 — Port D bit 5 |
| Chân 38 | RD6 — Port D bit 6 |
| Chân 39 | RD7 — Port D bit 7 |
| Chân 40 | RD8 — Port D bit 8 |
| Chân 41 | RD9 — Port D bit 9 |
| Chân 42 | RD10 — Port D bit 10 |
| Chân 43 | RD11 — Port D bit 11 |
| Chân 44 | RD12 — Port D bit 12 |
| Chân 45 | RD13 — Port D bit 13 |
| Chân 46 | RD14 — Port D bit 14 |
| Chân 47 | RD15 — Port D bit 15 |
| Chân 48 | RE0 — Port E bit 0 |
| Chân 49 | RE1 — Port E bit 1 |
| Chân 50 | RE2 — Port E bit 2 |
| Chân 51 | RE3 — Port E bit 3 |
| Chân 52 | RE4 — Port E bit 4 |
| Chân 53 | RE5 — Port E bit 5 |
| Chân 54 | RE6 — Port E bit 6 |
| Chân 55 | RE7 — Port E bit 7 |
| Chân 56 | RF0 — Port F bit 0 |
| Chân 57 | RF1 — Port F bit 1 |
| Chân 58 | RF2 — Port F bit 2 |
| Chân 59 | RF3 — Port F bit 3 |
| Chân 60 | RF4 — Port F bit 4 |
| Chân 61 | RF5 — Port F bit 5 |
| Chân 62 | RF6 — Port F bit 6 |
| Chân 63 | RF7 — Port F bit 7 |
| Chân 64 | RF8 — Port F bit 8 |
| Chân 65 | RF9 — Port F bit 9 |
| Chân 66 | RF10 — Port F bit 10 |
| Chân 67 | RF11 — Port F bit 11 |
| Chân 68 | RF12 — Port F bit 12 |
| Chân 69 | RF13 — Port F bit 13 |
| Chân 70 | RF14 — Port F bit 14 |
| Chân 71 | RF15 — Port F bit 15 |
| Chân 72 | RG0 — Port G bit 0 |
| Chân 73 | RG1 — Port G bit 1 |
| Chân 74 | RG2 — Port G bit 2 |
| Chân 75 | RG3 — Port G bit 3 |
| Chân 76 | RG4 — Port G bit 4 |
| Chân 77 | RG5 — Port G bit 5 |
| Chân 78 | RG6 — Port G bit 6 |
| Chân 79 | RG7 — Port G bit 7 |
| Chân 80 | RG8 — Port G bit 8 |
| Chân 81 | RG9 — Port G bit 9 |
| Chân 82 | RG10 — Port G bit 10 |
| Chân 83 | RG11 — Port G bit 11 |
| Chân 84 | RG12 — Port G bit 12 |
| Chân 85 | RG13 — Port G bit 13 |
| Chân 86 | RG14 — Port G bit 14 |
| Chân 87 | RG15 — Port G bit 15 |
| Chân 88 | VDD — Power supply |
| Chân 89 | VSS — Ground |
| Chân 90 | AVDD — Analog power supply |
| Chân 91 | AVSS — Analog ground |
| Chân 92 | VREF+ — ADC positive reference |
| Chân 93 | VREF- — ADC negative reference |
| Chân 94 | MCLR — Master clear reset (active low) |
| Chân 95 | OSC1 — Primary oscillator input |
| Chân 96 | OSC2 — Primary oscillator output |
| Chân 97 | SOSCI — Secondary oscillator input |
| Chân 98 | SOSCO — Secondary oscillator output |
| Chân 99 | PGEC1 — Programming clock / debug |
| Chân 100 | PGED1 — Programming data / debug |
| Chân 101 | USBDP — USB D+ signal |
| Chân 102 | USBDM — USB D- signal |
| Chân 103 | ETXEN — Ethernet transmit enable |
| Chân 104 | ETXD0 — Ethernet transmit data 0 |
| Chân 105 | ETXD1 — Ethernet transmit data 1 |
| Chân 106 | ERXD0 — Ethernet receive data 0 |
| Chân 107 | ERXD1 — Ethernet receive data 1 |
| Chân 108 | ECRSDV — Ethernet carrier sense / receive data valid |
| Chân 109 | ERXERR — Ethernet receive error |
| Chân 110 | EREFCLK — Ethernet reference clock |
| Chân 111 | EMDC — Ethernet management data clock |
| Chân 112 | EMDIO — Ethernet management data I/O |
| Chân 113 | C1TX — CAN1 transmit |
| Chân 114 | C1RX — CAN1 receive |
| Chân 115 | C2TX — CAN2 transmit |
| Chân 116 | C2RX — CAN2 receive |
| Chân 117 | U1TX — UART1 transmit |
| Chân 118 | U1RX — UART1 receive |
| Chân 119 | U2TX — UART2 transmit |
| Chân 120 | U2RX — UART2 receive |
| Chân 121 | SCL1 — I2C1 clock |
| Chân 122 | SDA1 — I2C1 data |
| Chân 123 | SCK1 — SPI1 clock |
| Chân 124 | SDI1 — SPI1 data input |
Ứng dụng tiêu biểu
PIC32MX795F512LT-80I/TL phù hợp cho 6 Áp dụngs: Industrial Ethernet Gateway, CAN-to-Ethernet Protocol Bridge, Motor Control with Field-Oriented Control, USB Device and Host Instrumentation, Building Automation Controller, Data Acquisition and Signal Processing.
Industrial Ethernet Gateway
The PIC32MX795F512LT-80I/TL fits industrial Ethernet gateways because its integrated 10/100 Mbit MAC with dedicated DMA handles packet traffic without CPU intervention, while 512 KB Flash and 128 KB SRAM accommodate a full TCP/IP stack and Modbus TCP server. The 80 MHz M4K core at 1.56 DMIPS/MHz processes protocol translation between Ethernet and serial fieldbus links. In a typical design, the MAC connects to an external PHY through the RMII interface, and the dual CAN controllers bridge to CANopen devices. The trade-off versus a Cortex-M7 gateway is lower raw throughput, but the on-chip Ethernet MAC eliminates an external controller and reduces BOM cost.
Được đề xuất
CAN-to-Ethernet Protocol Bridge
The PIC32MX795F512LT-80I/TL is ideal for CAN-to-Ethernet bridges because it integrates two CAN 2.0B controllers alongside the 10/100 Ethernet MAC, allowing simultaneous dual-bus CAN traffic and Ethernet uplink on one chip. The 8-channel DMA moves CAN and Ethernet frames without CPU load, and 128 KB SRAM buffers burst traffic during protocol conversion. In a bridge design, one CAN module connects to a vehicle bus and the other to a machine bus, while the Ethernet MAC forwards aggregated data to a supervisory system. The 2.3 V to 3.6 V supply and -40C to +85C rating suit factory-floor and automotive-adjacent environments.
Được đề xuất
Motor Control with Field-Oriented Control
The PIC32MX795F512LT-80I/TL supports motor control applications through its 16-channel 10-bit ADC sampling at 1 Msps, which captures three-phase current feedback for field-oriented control loops. The 80 MHz M4K core with single-cycle 32x16 MAC executes Park and Clarke transforms in real time, while the five 16-bit timers generate complementary PWM with dead-time insertion. In a typical servo drive, the ADC samples shunt currents synchronized to PWM, and the DMA transfers results to RAM without CPU overhead. The trade-off versus a dedicated motor-control MCU is the absence of on-chip op-amps, but the integrated Ethernet enables remote drive monitoring.
Được đề xuất
USB Device and Host Instrumentation
The PIC32MX795F512LT-80I/TL suits USB instrumentation because it integrates a USB 2.0 full-speed OTG controller with an on-chip transceiver, eliminating an external USB PHY. The 512 KB Flash stores firmware and data-logging buffers, while 128 KB SRAM supports USB endpoints and a command parser. In a data-acquisition instrument, the device enumerates as a CDC or HID device and streams ADC samples to a host PC. The 16-channel 10-bit ADC and 8-channel DMA allow continuous sampling without CPU intervention. The trade-off versus a dedicated USB MCU is higher power, but the integrated Ethernet and CAN add connectivity options.
Được đề xuất
Building Automation Controller
The PIC32MX795F512LT-80I/TL fits building automation controllers because it combines Ethernet, dual CAN, and six UART channels for BACnet/IP, CANopen, and Modbus RTU connectivity on a single chip. The 512 KB Flash holds a building management stack, and 128 KB SRAM buffers sensor and actuator data across multiple buses. In a typical HVAC controller, the Ethernet MAC connects to the building backbone while UARTs interface to zone sensors and CAN links to VAV boxes. The -40C to +85C industrial temperature range and 2.3 V to 3.6 V supply support reliable operation in mechanical rooms. The trade-off is higher cost than an 8-bit controller, justified by integrated networking.
Được đề xuất
Data Acquisition and Signal Processing
The PIC32MX795F512LT-80I/TL supports data acquisition because its 16-channel 10-bit ADC samples at 1 Msps and the 8-channel DMA streams results to SRAM without CPU intervention, enabling continuous multi-channel logging. The 80 MHz M4K core with single-cycle MAC executes FIR and IIR filters in real time, and 512 KB Flash stores calibration tables and firmware. In a typical DAQ node, the ADC digitizes sensor signals, DMA transfers blocks to RAM, and the core applies filtering before transmitting over Ethernet or USB. The trade-off versus a dedicated DSP is lower MIPS, but the integrated connectivity and memory reduce system cost.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC32MX795F512LT-80I/TL — 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 | PIC32MX795F512L-80I/TL | PIC32MX795F512L-80V/PF | PIC32MX695F512LT-80I/TL | PIC32MX775F512LT-80I/PT | PIC32MX795F512LT-80I/BG |
|---|---|---|---|---|---|---|
| Package | 124-pin VTLA (TL) | 124-pin VTLA (TL) - same | 100-pin TQFP (PF) | 124-pin VTLA (TL) - same | 100-pin TQFP (PT) | 124-pin XBGA (BG) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash Memory | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB | 512 KB |
| SRAM | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB | 128 KB |
| Ethernet MAC | 10/100 Mbit with DMA | 10/100 Mbit with DMA | 10/100 Mbit with DMA | None | 10/100 Mbit with DMA | 10/100 Mbit with DMA |
| CAN Controllers | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B | 2x CAN 2.0B |
| USB | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging | Tape & Reel | Tray | Tray | Tape & Reel | Tray | Tape & Reel |
Bảo phân biệt quan trọng
- Integrated 10/100 Ethernet MAC with DMA (vsPIC32MX695F512LT-80I/TL)
- Tape-and-reel packaging for automated assembly (vsPIC32MX795F512L-80I/TL)
- Dual CAN 2.0B plus Ethernet on one die (vsPIC32MX775F512LT-80I/PT)
Ghi chú thiết kế
Decouple every VDD pin with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, plus a 10 uF bulk capacitor near the package. The PIC32MX795F512LT-80I/TL draws transient current during 80 MHz operation; inadequate decoupling causes clock jitter and Ethernet packet errors. Use a solid ground plane under the device and connect the exposed pad to ground with multiple vias.
Route the Ethernet RMII signals (ETXD0/1, ERXD0/1, EREFCLK) as 50 ohm controlled-impedance traces and keep them matched in length within 5 mm. Place the external PHY within 25 mm of the MCU to minimize skew. Keep the USB D+/D- pair at 90 ohm differential impedance and avoid stubs. The 124-pin VTLA exposed pad must be soldered with adequate via stitching for thermal relief.
Do not exceed the 3.6 V maximum supply voltage; the PIC32MX795F512LT-80I/TL is not 5 V tolerant on all pins. Verify the VREF+ and VREF- connections for the ADC, as floating references cause inaccurate conversions. Ensure the MCLR pin has a 10 kohm pull-up and 0.1 uF capacitor to prevent spurious resets. Confirm the oscillator circuit matches the datasheet's recommended load capacitors for the selected crystal.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; industrial temperature grade only.
