PIC32MX795F512LT-80I/TL - 32-Bit 80MHz MCU 512KB | Microchip
MPN: PIC32MX795F512LT-80I/TL ✓ פעילPIC32MX795F512LT-80I/TL סקירה
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.
חלופות תחליף ישיר עבור PIC32MX795F512LT-80I/TL — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC32MX795F512LT-80I/TL (אותו גורם צורה וטביעת רגל) — שונים ב ADC, USB, Package, Ethernet, Operating Temperature.
PIC32MX795F512L-80I/TL
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX695F512LT-80I/TL
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC32MX795F512LT-80I/TL דירוגים מרביים ומאפיינים חשמליים
| 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 |
| טמפרטורת פעולה | -40C to +85C (industrial) |
| מארז | 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 |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC32MX795F512LT-80I/TL
| פין 1 | VDD — Power supply |
| פין 2 | VSS — Ground |
| פין 3 | RA0 — Port A bit 0 / analog input |
| פין 4 | RA1 — Port A bit 1 / analog input |
| פין 5 | RB0 — Port B bit 0 |
| פין 6 | RB1 — Port B bit 1 |
| פין 7 | RB2 — Port B bit 2 |
| פין 8 | RB3 — Port B bit 3 |
| פין 9 | RB4 — Port B bit 4 |
| פין 10 | RB5 — Port B bit 5 |
| פין 11 | RB6 — Port B bit 6 |
| פין 12 | RB7 — Port B bit 7 |
| פין 13 | RB8 — Port B bit 8 |
| פין 14 | RB9 — Port B bit 9 |
| פין 15 | RB10 — Port B bit 10 |
| פין 16 | RB11 — Port B bit 11 |
| פין 17 | RB12 — Port B bit 12 |
| פין 18 | RB13 — Port B bit 13 |
| פין 19 | RB14 — Port B bit 14 |
| פין 20 | RB15 — Port B bit 15 |
| פין 21 | RC1 — Port C bit 1 |
| פין 22 | RC2 — Port C bit 2 |
| פין 23 | RC3 — Port C bit 3 |
| פין 24 | RC4 — Port C bit 4 |
| פין 25 | RC5 — Port C bit 5 |
| פין 26 | RC6 — Port C bit 6 |
| פין 27 | RC7 — Port C bit 7 |
| פין 28 | RC8 — Port C bit 8 |
| פין 29 | RC9 — Port C bit 9 |
| פין 30 | VDD — Power supply |
| פין 31 | VSS — Ground |
| פין 32 | RD0 — Port D bit 0 |
| פין 33 | RD1 — Port D bit 1 |
| פין 34 | RD2 — Port D bit 2 |
| פין 35 | RD3 — Port D bit 3 |
| פין 36 | RD4 — Port D bit 4 |
| פין 37 | RD5 — Port D bit 5 |
| פין 38 | RD6 — Port D bit 6 |
| פין 39 | RD7 — Port D bit 7 |
| פין 40 | RD8 — Port D bit 8 |
| פין 41 | RD9 — Port D bit 9 |
| פין 42 | RD10 — Port D bit 10 |
| פין 43 | RD11 — Port D bit 11 |
| פין 44 | RD12 — Port D bit 12 |
| פין 45 | RD13 — Port D bit 13 |
| פין 46 | RD14 — Port D bit 14 |
| פין 47 | RD15 — Port D bit 15 |
| פין 48 | RE0 — Port E bit 0 |
| פין 49 | RE1 — Port E bit 1 |
| פין 50 | RE2 — Port E bit 2 |
| פין 51 | RE3 — Port E bit 3 |
| פין 52 | RE4 — Port E bit 4 |
| פין 53 | RE5 — Port E bit 5 |
| פין 54 | RE6 — Port E bit 6 |
| פין 55 | RE7 — Port E bit 7 |
| פין 56 | RF0 — Port F bit 0 |
| פין 57 | RF1 — Port F bit 1 |
| פין 58 | RF2 — Port F bit 2 |
| פין 59 | RF3 — Port F bit 3 |
| פין 60 | RF4 — Port F bit 4 |
| פין 61 | RF5 — Port F bit 5 |
| פין 62 | RF6 — Port F bit 6 |
| פין 63 | RF7 — Port F bit 7 |
| פין 64 | RF8 — Port F bit 8 |
| פין 65 | RF9 — Port F bit 9 |
| פין 66 | RF10 — Port F bit 10 |
| פין 67 | RF11 — Port F bit 11 |
| פין 68 | RF12 — Port F bit 12 |
| פין 69 | RF13 — Port F bit 13 |
| פין 70 | RF14 — Port F bit 14 |
| פין 71 | RF15 — Port F bit 15 |
| פין 72 | RG0 — Port G bit 0 |
| פין 73 | RG1 — Port G bit 1 |
| פין 74 | RG2 — Port G bit 2 |
| פין 75 | RG3 — Port G bit 3 |
| פין 76 | RG4 — Port G bit 4 |
| פין 77 | RG5 — Port G bit 5 |
| פין 78 | RG6 — Port G bit 6 |
| פין 79 | RG7 — Port G bit 7 |
| פין 80 | RG8 — Port G bit 8 |
| פין 81 | RG9 — Port G bit 9 |
| פין 82 | RG10 — Port G bit 10 |
| פין 83 | RG11 — Port G bit 11 |
| פין 84 | RG12 — Port G bit 12 |
| פין 85 | RG13 — Port G bit 13 |
| פין 86 | RG14 — Port G bit 14 |
| פין 87 | RG15 — Port G bit 15 |
| פין 88 | VDD — Power supply |
| פין 89 | VSS — Ground |
| פין 90 | AVDD — Analog power supply |
| פין 91 | AVSS — Analog ground |
| פין 92 | VREF+ — ADC positive reference |
| פין 93 | VREF- — ADC negative reference |
| פין 94 | MCLR — Master clear reset (active low) |
| פין 95 | OSC1 — Primary oscillator input |
| פין 96 | OSC2 — Primary oscillator output |
| פין 97 | SOSCI — Secondary oscillator input |
| פין 98 | SOSCO — Secondary oscillator output |
| פין 99 | PGEC1 — Programming clock / debug |
| פין 100 | PGED1 — Programming data / debug |
| פין 101 | USBDP — USB D+ signal |
| פין 102 | USBDM — USB D- signal |
| פין 103 | ETXEN — Ethernet transmit enable |
| פין 104 | ETXD0 — Ethernet transmit data 0 |
| פין 105 | ETXD1 — Ethernet transmit data 1 |
| פין 106 | ERXD0 — Ethernet receive data 0 |
| פין 107 | ERXD1 — Ethernet receive data 1 |
| פין 108 | ECRSDV — Ethernet carrier sense / receive data valid |
| פין 109 | ERXERR — Ethernet receive error |
| פין 110 | EREFCLK — Ethernet reference clock |
| פין 111 | EMDC — Ethernet management data clock |
| פין 112 | EMDIO — Ethernet management data I/O |
| פין 113 | C1TX — CAN1 transmit |
| פין 114 | C1RX — CAN1 receive |
| פין 115 | C2TX — CAN2 transmit |
| פין 116 | C2RX — CAN2 receive |
| פין 117 | U1TX — UART1 transmit |
| פין 118 | U1RX — UART1 receive |
| פין 119 | U2TX — UART2 transmit |
| פין 120 | U2RX — UART2 receive |
| פין 121 | SCL1 — I2C1 clock |
| פין 122 | SDA1 — I2C1 data |
| פין 123 | SCK1 — SPI1 clock |
| פין 124 | SDI1 — SPI1 data input |
יישומים טיפוסיים
PIC32MX795F512LT-80I/TL מתאים עבור 6 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC32MX795F512LT-80I/TL — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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 |
מבדילים עיקריים
- Integrated 10/100 Ethernet MAC with DMA (לעומתPIC32MX695F512LT-80I/TL)
- Tape-and-reel packaging for automated assembly (לעומתPIC32MX795F512L-80I/TL)
- Dual CAN 2.0B plus Ethernet on one die (לעומתPIC32MX775F512LT-80I/PT)
הערות תכנון
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.
מידע על תאימות
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; industrial temperature grade only.
