PIC32MX795F512LT-80I/TL - 32-Bit 80MHz MCU 512KB | Microchip
N.º de pieza: PIC32MX795F512LT-80I/TL ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $10.88 | $10,88 |
| 10 | $9.79 | $97,90 |
| 100 | $8.7 | $870,00 |
| 500 | $7.62 | $3.810,00 |
| 1.000 | $6.53 | $6.530,00 |
PIC32MX795F512LT-80I/TL Descripción general
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.
Alternativas directas para PIC32MX795F512LT-80I/TL — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC32MX795F512LT-80I/TL (mismo factor de forma y huella) — difiere en ADC, USB, Package, Ethernet, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX795F512L-80I/TL
✅ Sustitución directa✓ En stock
$7.8 / unidad
Ver hoja de datos →PIC32MX695F512LT-80I/TL
✅ Sustitución directa✓ En stock
$8.45 / unidad
Ver hoja de datos →PIC32MX795F512LT-80I/TL Valores máximos y características eléctricas
| 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 |
| Temperatura de funcionamiento | -40C to +85C (industrial) |
| Encapsulado | 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 |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de PIC32MX795F512LT-80I/TL
| Pin 1 | VDD — Power supply |
| Pin 2 | VSS — Ground |
| Pin 3 | RA0 — Port A bit 0 / analog input |
| Pin 4 | RA1 — Port A bit 1 / analog input |
| Pin 5 | RB0 — Port B bit 0 |
| Pin 6 | RB1 — Port B bit 1 |
| Pin 7 | RB2 — Port B bit 2 |
| Pin 8 | RB3 — Port B bit 3 |
| Pin 9 | RB4 — Port B bit 4 |
| Pin 10 | RB5 — Port B bit 5 |
| Pin 11 | RB6 — Port B bit 6 |
| Pin 12 | RB7 — Port B bit 7 |
| Pin 13 | RB8 — Port B bit 8 |
| Pin 14 | RB9 — Port B bit 9 |
| Pin 15 | RB10 — Port B bit 10 |
| Pin 16 | RB11 — Port B bit 11 |
| Pin 17 | RB12 — Port B bit 12 |
| Pin 18 | RB13 — Port B bit 13 |
| Pin 19 | RB14 — Port B bit 14 |
| Pin 20 | RB15 — Port B bit 15 |
| Pin 21 | RC1 — Port C bit 1 |
| Pin 22 | RC2 — Port C bit 2 |
| Pin 23 | RC3 — Port C bit 3 |
| Pin 24 | RC4 — Port C bit 4 |
| Pin 25 | RC5 — Port C bit 5 |
| Pin 26 | RC6 — Port C bit 6 |
| Pin 27 | RC7 — Port C bit 7 |
| Pin 28 | RC8 — Port C bit 8 |
| Pin 29 | RC9 — Port C bit 9 |
| Pin 30 | VDD — Power supply |
| Pin 31 | VSS — Ground |
| Pin 32 | RD0 — Port D bit 0 |
| Pin 33 | RD1 — Port D bit 1 |
| Pin 34 | RD2 — Port D bit 2 |
| Pin 35 | RD3 — Port D bit 3 |
| Pin 36 | RD4 — Port D bit 4 |
| Pin 37 | RD5 — Port D bit 5 |
| Pin 38 | RD6 — Port D bit 6 |
| Pin 39 | RD7 — Port D bit 7 |
| Pin 40 | RD8 — Port D bit 8 |
| Pin 41 | RD9 — Port D bit 9 |
| Pin 42 | RD10 — Port D bit 10 |
| Pin 43 | RD11 — Port D bit 11 |
| Pin 44 | RD12 — Port D bit 12 |
| Pin 45 | RD13 — Port D bit 13 |
| Pin 46 | RD14 — Port D bit 14 |
| Pin 47 | RD15 — Port D bit 15 |
| Pin 48 | RE0 — Port E bit 0 |
| Pin 49 | RE1 — Port E bit 1 |
| Pin 50 | RE2 — Port E bit 2 |
| Pin 51 | RE3 — Port E bit 3 |
| Pin 52 | RE4 — Port E bit 4 |
| Pin 53 | RE5 — Port E bit 5 |
| Pin 54 | RE6 — Port E bit 6 |
| Pin 55 | RE7 — Port E bit 7 |
| Pin 56 | RF0 — Port F bit 0 |
| Pin 57 | RF1 — Port F bit 1 |
| Pin 58 | RF2 — Port F bit 2 |
| Pin 59 | RF3 — Port F bit 3 |
| Pin 60 | RF4 — Port F bit 4 |
| Pin 61 | RF5 — Port F bit 5 |
| Pin 62 | RF6 — Port F bit 6 |
| Pin 63 | RF7 — Port F bit 7 |
| Pin 64 | RF8 — Port F bit 8 |
| Pin 65 | RF9 — Port F bit 9 |
| Pin 66 | RF10 — Port F bit 10 |
| Pin 67 | RF11 — Port F bit 11 |
| Pin 68 | RF12 — Port F bit 12 |
| Pin 69 | RF13 — Port F bit 13 |
| Pin 70 | RF14 — Port F bit 14 |
| Pin 71 | RF15 — Port F bit 15 |
| Pin 72 | RG0 — Port G bit 0 |
| Pin 73 | RG1 — Port G bit 1 |
| Pin 74 | RG2 — Port G bit 2 |
| Pin 75 | RG3 — Port G bit 3 |
| Pin 76 | RG4 — Port G bit 4 |
| Pin 77 | RG5 — Port G bit 5 |
| Pin 78 | RG6 — Port G bit 6 |
| Pin 79 | RG7 — Port G bit 7 |
| Pin 80 | RG8 — Port G bit 8 |
| Pin 81 | RG9 — Port G bit 9 |
| Pin 82 | RG10 — Port G bit 10 |
| Pin 83 | RG11 — Port G bit 11 |
| Pin 84 | RG12 — Port G bit 12 |
| Pin 85 | RG13 — Port G bit 13 |
| Pin 86 | RG14 — Port G bit 14 |
| Pin 87 | RG15 — Port G bit 15 |
| Pin 88 | VDD — Power supply |
| Pin 89 | VSS — Ground |
| Pin 90 | AVDD — Analog power supply |
| Pin 91 | AVSS — Analog ground |
| Pin 92 | VREF+ — ADC positive reference |
| Pin 93 | VREF- — ADC negative reference |
| Pin 94 | MCLR — Master clear reset (active low) |
| Pin 95 | OSC1 — Primary oscillator input |
| Pin 96 | OSC2 — Primary oscillator output |
| Pin 97 | SOSCI — Secondary oscillator input |
| Pin 98 | SOSCO — Secondary oscillator output |
| Pin 99 | PGEC1 — Programming clock / debug |
| Pin 100 | PGED1 — Programming data / debug |
| Pin 101 | USBDP — USB D+ signal |
| Pin 102 | USBDM — USB D- signal |
| Pin 103 | ETXEN — Ethernet transmit enable |
| Pin 104 | ETXD0 — Ethernet transmit data 0 |
| Pin 105 | ETXD1 — Ethernet transmit data 1 |
| Pin 106 | ERXD0 — Ethernet receive data 0 |
| Pin 107 | ERXD1 — Ethernet receive data 1 |
| Pin 108 | ECRSDV — Ethernet carrier sense / receive data valid |
| Pin 109 | ERXERR — Ethernet receive error |
| Pin 110 | EREFCLK — Ethernet reference clock |
| Pin 111 | EMDC — Ethernet management data clock |
| Pin 112 | EMDIO — Ethernet management data I/O |
| Pin 113 | C1TX — CAN1 transmit |
| Pin 114 | C1RX — CAN1 receive |
| Pin 115 | C2TX — CAN2 transmit |
| Pin 116 | C2RX — CAN2 receive |
| Pin 117 | U1TX — UART1 transmit |
| Pin 118 | U1RX — UART1 receive |
| Pin 119 | U2TX — UART2 transmit |
| Pin 120 | U2RX — UART2 receive |
| Pin 121 | SCL1 — I2C1 clock |
| Pin 122 | SDA1 — I2C1 data |
| Pin 123 | SCK1 — SPI1 clock |
| Pin 124 | SDI1 — SPI1 data input |
Aplicaciones típicas
PIC32MX795F512LT-80I/TL es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX795F512LT-80I/TL — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Integrated 10/100 Ethernet MAC with DMA (frente a PIC32MX695F512LT-80I/TL)
- Tape-and-reel packaging for automated assembly (frente a PIC32MX795F512L-80I/TL)
- Dual CAN 2.0B plus Ethernet on one die (frente a PIC32MX775F512LT-80I/PT)
Notas de diseño
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.
Información de cumplimiento
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; industrial temperature grade only.
