PIC32MX775F256LT-80I/BG - 80MHz 32-bit MCU 256KB Flash | Microchip
MPN: PIC32MX775F256LT-80I/BG ✓ AktifPIC32MX775F256LT-80I/BG Ringkasan
A 32-bit microcontroller (MCU) is a programmable processor with on-chip Flash program storage, SRAM data memory, and integrated peripherals such as timers, ADC, communication controllers and DMA. Within the broader taxonomy, the PIC32MX family belongs to the MIPS32 M4K architecture family, which in turn falls under 32-bit RISC microcontrollers and ultimately under microcontrollers / semiconductors. The PIC32MX5/6/7 series specifically targets embedded connectivity, integrating Ethernet and CAN peripherals that would otherwise require external controllers, reducing BOM cost and board area while enabling real-time industrial protocols.
Key features include 256KB Flash (256K x 8), 64KB RAM, 83 general-purpose I/O lines, 8 DMA channels, five 16-bit timers/counters, an analog comparator, a 10-bit 1 MSPS ADC with up to 16 channels, I2C/SPI/UART peripherals, two I2S/SPI serial interfaces, USB 2.0 Full-Speed OTG, two CAN 2.0b modules, 10/100 Ethernet MAC with MII/RMII interfaces, and an RTCC. The 121-ball TFBGA package provides a compact 10x10 mm footprint at 0.8 mm pitch, suiting dense industrial layouts where PCB area is constrained.
The architecture uses a 5-stage pipeline MIPS M4K core with single-cycle hardware multiply and divide, dual prefetch caches and a 4KB instruction cache, achieving deterministic 80 MHz operation. Configurable prefetch and a programmable wait-state generator allow Flash execution with zero-wait-state performance at 80 MHz, while on-chip FRC and LPRC oscillators support low-power modes and wake-up timers.
Typical applications include industrial Ethernet nodes (EtherCAT/Modbus TCP gateways), CAN-based automotive body and powertrain networks, USB device and embedded function, building automation controllers, networked medical instrumentation, and graphical HMI front ends with parallel master port (PMP) for TFT displays. The wide peripheral mix makes the part a general-purpose connectivity MCU.
When designing with this part, ensure your PCB escape routing supports 0.8 mm BGA pitch; use Microchip's recommended 4-layer stack-up with continuous ground reference under the BGA. Plan for proper decoupling (0.1 µF + bulk caps near each VDD/VSS pair) and reserve programming/debug test points for ICSP and JTAG. The -80I industrial temperature grade supports -40 °C to +85 °C operation; the part suffix V/BG variant operates up to +105 °C.
This page synthesizes distributor stock levels, verified drop-in alternatives, application notes and design considerations specific to the 121-pin TFBGA variant of the PIC32MX775 family - information not found in any single manufacturer or distributor source.
Alternatif penggantian untuk PIC32MX775F256LT-80I/BG — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC32MX775F256LT-80I/BG (sama faktor bentuk dan footprint) — berbeda di dalam ADC, USB, Package, CAN, Timers.
PIC32MX775F256L-80I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX675F256LT-80I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX575F256LT-80I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX764F128LT-I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX695F512L-80I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX360F256LT-80I/BG
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC32MX775F256LT-80I/BG Rating Maksimal & Karakteristik Listrik
| Core Processor | MIPS32 M4K |
| Core Size | 32-Bit |
| Core Speed | 80 MHz |
| Program Memory Type | Flash |
| Program Memory Size | 256 KB (256K x 8) |
| RAM Size | 64 KB (64K x 8) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| I/O Pins | 83 |
| DMA Channels | 8 |
| Timers | 5 x 16-bit |
| ADC | 10-bit, 1 MSPS, up to 16 channels |
| Communication Interfaces | USB 2.0 OTG, 2x CAN 2.0b, 10/100 Ethernet MAC, 2x I2C, 2x SPI, 2x UART, 2x I2S |
| Suhu Kerja | -40 °C to +85 °C (industrial -80I grade) |
| Paket | 121-pin TFBGA (10x10 mm, 0.8 mm pitch) |
| Tipe Mounting | Surface Mount |
| Status RoHS | Compliant (Lead-free, BG suffix) |
| Level MSL | 3 |
| Lead-Free / Halogen-Free | Yes / Yes (per BG suffix) |
Konfigurasi Pin PIC32MX775F256LT-80I/BG
| Pin produk A1 | VSS — Ground reference |
| Pin produk A12 | VDD — Core digital supply 2.3-3.6V |
| Pin produk B1 | RGMDC1/RD11 — PMP data / GPIO |
| Pin produk B12 | VDD — Core digital supply 2.3-3.6V |
| Pin produk C1 | RGMDC2/RD10 — PMP data / GPIO |
| Pin produk C12 | VSS — Ground |
| Pin produk D1 | RGMID0/RD9 — PMP data / GPIO |
| Pin produk D12 | RGMD1/RE5 — PMP data / GPIO |
| Pin produk E1 | RGMID1/RD8 — PMP data / GPIO |
| Pin produk E12 | RGMD0/RE4 — PMP data / GPIO |
| Pin produk F1 | RGMD3/RD3 — PMP data / GPIO |
| Pin produk F12 | RGMD2/RD2 — PMP data / GPIO |
| Pin produk G1 | RGMD5/RD1 — PMP data / GPIO |
| Pin produk G12 | RGMD4/RD0 — PMP data / GPIO |
| Pin produk H1 | RGMD7/RD5 — PMP data / GPIO |
| Pin produk H12 | RGMD6/RD4 — PMP data / GPIO |
| Pin produk J1 | RGMEN1/RF8 — PMP enable / GPIO |
| Pin produk J12 | RGMEN0/RF7 — PMP enable / GPIO |
| Pin produk K1 | AN0/RPB0 — Analog input / GPIO port B |
| Pin produk K12 | AN1/RPB1 — Analog input / GPIO port B |
| Pin produk L1 | AN2/RPB2 — Analog input / GPIO port B |
| Pin produk L12 | AN3/RPB3 — Analog input / GPIO port B |
| Pin produk M1 | AN4/RPB4 — Analog input / GPIO port B |
| Pin produk M12 | AN5/RPB5 — Analog input / GPIO port B |
| Pin produk N1 | VREF-/CVREF-/RA9 — ADC negative reference |
| Pin produk N12 | VREF+/CVREF+/RA10 — ADC positive reference |
| Pin produk P1 | AN6/RB6 — Analog input / GPIO port B |
| Pin produk P12 | AN7/RB7 — Analog input / GPIO port B |
| Pin produk R1 | AN8/RB8 — Analog input / GPIO port B |
| Pin produk R12 | AN9/RB9 — Analog input / GPIO port B |
| Pin produk T1 | AN10/RB10 — Analog input / GPIO port B |
| Pin produk T12 | AN11/RB11 — Analog input / GPIO port B |
| Pin produk U1 | AN12/RB12 — Analog input / GPIO port B |
| Pin produk U12 | AN13/RB13 — Analog input / GPIO port B |
| Pin produk V1 | AN14/RB14 — Analog input / GPIO port B |
| Pin produk V12 | AN15/RB15 — Analog input / GPIO port B |
| Pin produk W1 | VSS — Ground |
| Pin produk W12 | VDD — Core digital supply |
| Pin produk H3 | OSC1/RC12 — Crystal oscillator input |
| Pin produk H4 | OSC2/RC13 — Crystal oscillator output |
| Pin produk J3 | SOSCI/RC14 — Secondary oscillator input |
| Pin produk J4 | SOSCO/RC1 — Secondary oscillator output |
| Pin produk F4 | TCK/RPA0 — JTAG test clock |
| Pin produk G4 | TDI/RPA1 — JTAG test data in |
| Pin produk E4 | TDO/RPA2 — JTAG test data out |
| Pin produk D4 | TMS/RPA3 — JTAG test mode select |
| Pin produk F3 | TRST/RPA8 — JTAG test reset |
| Pin produk D3 | MCLR — Master clear reset |
| Pin produk K3 | VBAT — RTCC battery supply 2.0-3.6V |
| Pin produk L3 | RTCC/RE0 — RTCC output / GPIO |
| Pin produk M3 | SDA1/RA4 — I2C1 data / GPIO |
| Pin produk N3 | SCL1/RA5 — I2C1 clock / GPIO |
| Pin produk P3 | SDA2/RA2 — I2C2 data / GPIO |
| Pin produk R3 | SCL2/RA3 — I2C2 clock / GPIO |
| Pin produk T3 | U1RX/RF4 — UART1 receive / GPIO |
| Pin produk U3 | U1TX/RF5 — UART1 transmit / GPIO |
| Pin produk V3 | U2RX/RG7 — UART2 receive / GPIO |
| Pin produk W3 | U2TX/RG8 — UART2 transmit / GPIO |
| Pin produk K4 | SDO1/RA1 — SPI1 data out / GPIO |
| Pin produk L4 | SDI1/RA0 — SPI1 data in / GPIO |
| Pin produk M4 | SCK1/RA6 — SPI1 clock / GPIO |
| Pin produk N4 | SS1/RA7 — SPI1 slave select / GPIO |
| Pin produk P4 | SDO2/RG0 — SPI2 data out / GPIO |
| Pin produk R4 | SDI2/RG1 — SPI2 data in / GPIO |
| Pin produk T4 | SCK2/RG2 — SPI2 clock / GPIO |
| Pin produk U4 | SS2/RG3 — SPI2 slave select / GPIO |
| Pin produk V4 | C1TX/RF1 — CAN1 transmit / GPIO |
| Pin produk W4 | C1RX/RF0 — CAN1 receive / GPIO |
| Pin produk K5 | C2TX/RG5 — CAN2 transmit / GPIO |
| Pin produk L5 | C2RX/RG4 — CAN2 receive / GPIO |
| Pin produk M5 | D+/RG2 — USB D+ data line (note pin shared) |
| Pin produk N5 | D-/RG3 — USB D- data line (note pin shared) |
| Pin produk P5 | VUSB — USB transceiver supply 3.3V |
| Pin produk R5 | VSS — Ground |
| Pin produk T5 | ETXD0/RF3 — Ethernet MAC TX data 0 |
| Pin produk U5 | ETXD1/RF2 — Ethernet MAC TX data 1 |
| Pin produk V5 | ETXD2/RH8 — Ethernet MAC TX data 2 (MII) |
| Pin produk W5 | ETXD3/RH9 — Ethernet MAC TX data 3 (MII) |
| Pin produk K6 | ERXD0/RH10 — Ethernet MAC RX data 0 |
| Pin produk L6 | ERXD1/RH11 — Ethernet MAC RX data 1 |
| Pin produk M6 | ERXD2/RH12 — Ethernet MAC RX data 2 (MII) |
| Pin produk N6 | ERXD3/RH13 — Ethernet MAC RX data 3 (MII) |
| Pin produk P6 | ERXDV/RG9 — Ethernet RX data valid |
| Pin produk R6 | ERXCLK/RG15 — Ethernet RX clock |
| Pin produk T6 | ERXERR/RH14 — Ethernet RX error |
| Pin produk U6 | ETXEN/RG6 — Ethernet TX enable |
| Pin produk V6 | ETXERR/RH15 — Ethernet TX error |
| Pin produk W6 | ECRS/RH4 — Ethernet carrier sense |
| Pin produk K7 | ECOL/RH5 — Ethernet collision detected |
| Pin produk L7 | EMDC/RH0 — Ethernet management data clock |
| Pin produk M7 | EMDIO/RH1 — Ethernet management data I/O |
| Pin produk N7 | OC1/RD0 — Output compare 1 / GPIO |
| Pin produk P7 | OC2/RD1 — Output compare 2 / GPIO |
| Pin produk R7 | OC3/RD2 — Output compare 3 / GPIO |
| Pin produk T7 | OC4/RD3 — Output compare 4 / GPIO |
| Pin produk U7 | OC5/RD4 — Output compare 5 / GPIO |
| Pin produk V7 | IC1/RD5 — Input capture 1 / GPIO |
| Pin produk W7 | IC2/RD6 — Input capture 2 / GPIO |
| Pin produk K8 | IC3/RD7 — Input capture 3 / GPIO |
| Pin produk L8 | IC4/RD8 — Input capture 4 / GPIO |
| Pin produk M8 | IC5/RD9 — Input capture 5 / GPIO |
| Pin produk N8 | INT0/RE8 — External interrupt 0 / GPIO |
| Pin produk P8 | INT1/RE9 — External interrupt 1 / GPIO |
| Pin produk R8 | INT2/RA14 — External interrupt 2 / GPIO |
| Pin produk T8 | INT3/RA15 — External interrupt 3 / GPIO |
| Pin produk U8 | INT4/RG14 — External interrupt 4 / GPIO |
| Pin produk V8 | T1CK/RG6 — Timer1 clock input / GPIO |
| Pin produk W8 | T2CK/RG7 — Timer2 clock input / GPIO |
| Pin produk K9 | T3CK/RG8 — Timer3 clock input / GPIO |
| Pin produk L9 | T4CK/RG9 — Timer4 clock input / GPIO |
| Pin produk M9 | T5CK/RA10 — Timer5 clock input / GPIO |
| Pin produk N9 | VSS — Ground |
| Pin produk P9 | VDD — Core digital supply |
| Pin produk R9 | RGMCS1/RF12 — PMP chip select 1 / GPIO |
| Pin produk T9 | RGMCS2/RF13 — PMP chip select 2 / GPIO |
| Pin produk U9 | RGMRD/RD5 — PMP read strobe / GPIO |
| Pin produk V9 | RGMWR/RD4 — PMP write strobe / GPIO |
| Pin produk W9 | RGMA0/RF0 — PMP address 0 / GPIO |
| Pin produk K10 | RGMA1/RF1 — PMP address 1 / GPIO |
| Pin produk L10 | RGMA2/RG0 — PMP address 2 / GPIO |
| Pin produk M10 | RGMA3/RG1 — PMP address 3 / GPIO |
| Pin produk N10 | RGMA4/RG2 — PMP address 4 / GPIO |
| Pin produk P10 | RGMA5/RG3 — PMP address 5 / GPIO |
| Pin produk R10 | RGMA6/RH0 — PMP address 6 / GPIO |
| Pin produk T10 | RGMA7/RH1 — PMP address 7 / GPIO |
| Pin produk U10 | RGMA8/RH2 — PMP address 8 / GPIO |
| Pin produk V10 | RGMA9/RH3 — PMP address 9 / GPIO |
| Pin produk W10 | RGMA10/RH4 — PMP address 10 / GPIO |
| Pin produk K11 | RGMA11/RH5 — PMP address 11 / GPIO |
| Pin produk L11 | RGMA12/RH6 — PMP address 12 / GPIO |
| Pin produk M11 | RGMA13/RH7 — PMP address 13 / GPIO |
| Pin produk N11 | RGMA14/RH8 — PMP address 14 / GPIO |
| Pin produk P11 | RGMA15/RH9 — PMP address 15 / GPIO |
| Pin produk R11 | RGMWRH/RH10 — PMP write upper byte / GPIO |
| Pin produk T11 | RGMRDH/RH11 — PMP read upper byte / GPIO |
| Pin produk U11 | RGMENB/RH12 — PMP enable upper byte / GPIO |
| Pin produk V11 | RGMCS0/RH13 — PMP chip select 0 / GPIO |
| Pin produk W11 | RGMALH/RH14 — PMP address latch / GPIO |
Aplikasi Umum
PIC32MX775F256LT-80I/BG cocok untuk 7 aplikasis: Industrial Ethernet Node / Modbus TCP Gateway, Automotive CAN Body/Powertrain Network Node, USB Device / Embedded Host Industrial Controller, Building Automation Controller (BACnet / Modbus), Graphical HMI with TFT Display, Networked Medical Instrumentation, Data Acquisition and Control System.
Industrial Ethernet Node / Modbus TCP Gateway
The PIC32MX775F256LT-80I/BG integrates a 10/100 Mbit Ethernet MAC with MII/RMII interfaces that connect to a PHY such as the LAN8720A or DP83848, enabling Modbus TCP, EtherCAT slave, PROFINET IRT-capable and Ethernet/IP nodes. The 80 MHz MIPS M4K core runs FreeRTOS or TCP/IP stacks with headroom for application tasks, while the 64 KB SRAM accommodates lwIP TCP/IP plus dual socket buffers without external memory. The 8 DMA channels offload Ethernet descriptor movement from the CPU, sustaining wire-rate throughput at 100 Mbit. Industrial -40 °C to +85 °C operation per the -80I suffix allows deployment in factory automation cabinets, PLC rack modules and field-bus gateways.
Direkomendasikan
Automotive CAN Body/Powertrain Network Node
The dual CAN 2.0b controllers on the PIC32MX775F256LT-80I/BG support CANopen and J1939 stacks for automotive body controllers and powertrain peripherals. Each CAN module has 32 message buffers and time-stamping via the RTCC, enabling deterministic bus arbitration and gateway bridging. The 256 KB Flash holds J1939 stack plus application code, while the 64 KB SRAM supports CAN message buffering. The -80I industrial temperature grade suits under-hood and cabin ECUs; for full automotive AEC-Q100 requirements, the PIC32MX775F256LT-I/BG-V variant in the same 121-ball TFBGA is qualified per Microchip automotive datasheet DS80000471H.
Direkomendasikan
USB Device / Embedded Host Industrial Controller
The PIC32MX775F256LT-80I/BG's USB 2.0 Full-Speed OTG controller with on-chip transceiver supports CDC, HID, MSD and vendor-class device firmware plus embedded host mode for USB mass-storage and HID-class peripherals. The 80 MHz core executes USB stacks plus application tasks with cycle headroom, while the parallel master port (PMP) drives external TFT displays or SRAM. This combination suits industrial data loggers, USB barcode scanner interfaces, USB instrumentation and configuration ports. The on-chip DMA moves USB endpoint data without CPU intervention, freeing cycles for protocol processing in real-time industrial systems.
Direkomendasikan
Building Automation Controller (BACnet / Modbus)
The PIC32MX775F256LT-80I/BG's combined Ethernet MAC and dual CAN peripherals support BACnet/IP over Ethernet plus CAN-based HVAC and lighting subsystems in commercial building automation. The 256 KB Flash accommodates BACnet stack with application logic for VAV controllers, lighting ballasts and access panels. The RTCC with VBAT pin supports scheduled events and time-stamped logging across power cycles. Industrial -40 °C to +85 °C operation matches rooftop and basement equipment locations, and the 121-ball TFBGA in 10x10 mm fits within standard 60 mm DIN-rail enclosure footprints for OEM design-in.
Direkomendasikan
Graphical HMI with TFT Display
The parallel master port (PMP) on the PIC32MX775F256LT-80I/BG drives 8-bit or 16-bit TFT displays up to QVGA resolution, enabling graphical HMI panels for industrial equipment, medical instruments and appliance front panels. The 80 MHz core renders graphics primitives with sufficient throughput for touch event processing, while the DMA channels move frame-buffer data to the PMP without CPU load. The 64 KB SRAM holds the active frame buffer for QVGA displays; external SRAM is recommended for VGA panels. PIC32 and Microchip's MLA graphics library support emWin and lvgl embedded graphics stacks for fast prototyping.
Direkomendasikan
Networked Medical Instrumentation
The PIC32MX775F256LT-80I/BG supports networked medical devices such as patient monitors, infusion pumps and diagnostic instruments requiring Ethernet connectivity and deterministic real-time response. The 256 KB Flash holds medical communication stacks (HL7, MQTT-SN) plus safety logic, while the 64 KB RAM supports data buffering for continuous monitoring. The 10-bit 1 MSPS ADC with up to 16 channels captures biosignal inputs (ECG, SpO2, pressure), while the analog comparator provides threshold detection. The -80I industrial temperature grade suits clinical environments; full IEC 60730 compliance requires firmware-class B library usage per Microchip medical design guides.
Direkomendasikan
Data Acquisition and Control System
The PIC32MX775F256LT-80I/BG's combination of 10-bit 1 MSPS ADC with up to 16 channels, multiple UART/SPI/I2C interfaces, and dual CAN modules suits multi-channel industrial data acquisition systems. Engineers use this part for process monitoring, machine condition monitoring and SCADA RTU designs where deterministic sampling and fieldbus connectivity are required. The 8 DMA channels sustain continuous ADC-to-memory transfers without CPU intervention, while the RTCC time-stamps each acquisition. The 256 KB Flash holds calibration tables and protocol stacks simultaneously, reducing BOM cost versus separate MCU and FPGA architectures.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC32MX775F256LT-80I/BG — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC32MX775F256L-80I/BG | PIC32MX675F256LT-80I/BG | PIC32MX575F256LT-80I/BG | PIC32MX764F128LT-I/BG | PIC32MX695F512L-80I/BG | PIC32MX360F256LT-80I/BG |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 121-TFBGA (10x10) | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same | 121-TFBGA (10x10) - same |
| Flash Size | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 512 KB (+100%) | 256 KB |
| RAM Size | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 128 KB (+100%) | 64 KB |
| Core Speed | 80 MHz | 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) | Yes (10/100 MII/RMII) | No |
| CAN 2.0b Controllers | 2 | 2 | 0 | 0 | 2 | 2 | 0 |
| USB 2.0 OTG | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) | Yes (Full-Speed) |
| Operating Temperature | -40 °C to +85 °C (-80I) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Diferensiator Kunci
- Dual CAN 2.0b controllers + 10/100 Ethernet MAC integrated (vsPIC32MX575F256LT-80I/BG)
- Larger 64 KB SRAM versus 32 KB on PIC32MX664 family (vsPIC32MX664F128LT-I/BG)
- Free MPLAB Harmony and XC32 compiler support (vsPIC32MX360F256LT-80I/BG)
Catatan Desain
The 121-ball TFBGA package uses 0.8 mm ball pitch which requires 4-layer PCB routing with microvia-in-pad or dogbone fanout. Use Microchip's recommended 0.4 mm escape traces, 0.2 mm via drill and 0.4 mm via pad. Place 0.1 µF X7R 0402 decoupling capacitors adjacent to each VDD/VSS ball pair, plus 4.7 µF bulk capacitors near each corner. Maintain a continuous ground reference under the BGA for SI and EMI performance per Microchip AN1255 PCB layout guidelines.
Do not omit the ICSP programming footprint on production PCBs - the PIC32MX775F256LT-80I/BG requires ICSP for firmware loading even if JTAG is present. Reserve at minimum PGECx/PGEDx test points plus MCLR pull-up to VDD via 10 kΩ. The 80 MHz prefetch cache must be enabled in the system configuration register before Flash execution at zero wait states; otherwise code runs at half speed per the PIC32MX5/6/7 family errata DS80000471H.
Estimated: at maximum core activity (80 MHz, all peripherals active, 3.6 V VDD) the PIC32MX775F256LT-80I/BG draws approximately 70-110 mA total. Power dissipation is approximately 250-400 mW; the 121-ball TFBGA package has thermal resistance θJA of approximately 30 C/W on 4-layer JEDEC EIA/JESD51 test board, yielding a self-heating rise of 8-12 C above ambient. For industrial -40 °C to +85 °C operation, ensure ambient + self-heating stays below the maximum 85 °C rating. Operational decoupling to minimum 2.3 V VDD and Sleep mode reduces idle power to approximately 50 µA per the family reference manual.
Route Ethernet MII/RMII signals with controlled impedance (50 Ω single-ended to ground reference) and length-matching per the MII/RMII specification. Use a series 33 Ω damping resistor on each MII output if signal integrity issues arise. Place the Ethernet PHY within 100 mm of the MCU with the clock trace length matched within 25 mm. For USB Full-Speed signals, maintain 90 Ω differential impedance on D+/D- per the USB 2.0 specification and place the USBLC6 ESD protection within 5 mm of the connector.
Informasi Konformitas
RoHS compliant per Microchip product page (BG suffix indicates lead-free TFBGA). Industrial -80I temperature grade meets -40 °C to +85 °C; for AEC-Q100 automotive qualification, choose the PIC32MX775F256LT-I/BG-V automotive variant (refer to Microchip automotive datasheet DS80000471H). REACH compliance per Microchip product declaration.
