PIC32MX775F256LT-80V/PF - 80MHz 32-bit MCU, 256KB Flash, USB-OTG, 100-TQFP
N.º de pieza: PIC32MX775F256LT-80V/PF ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $11.17 | $11,17 |
| 10 | $10.05 | $100,50 |
| 100 | $8.95 | $895,00 |
| 500 | $7.84 | $3.920,00 |
| 1.000 | $6.74 | $6.740,00 |
PIC32MX775F256LT-80V/PF Descripción general
A PIC32MX microcontroller is a 32-bit MIPS-based MCU that bridges 8/16-bit PIC legacy code with modern connected-embedded workloads. Within the taxonomy, it sits as: PIC32MX -> PIC32 family -> 32-bit MCU -> microcontroller -> semiconductor. These parts are widely used in industrial Ethernet nodes, USB peripherals, and CAN-connected sensor hubs where deterministic real-time behavior, deterministic interrupt latency, and rich connectivity peripherals are required in a single chip.
Key features include 256 KB single-cycle Flash with prefetch, 64 KB SRAM with DMA, hardware crypto engine (the F775 suffix implies AES/Random Number Generator availability on certain family members - confirm per datasheet revision), parallel master port, and five 16-bit timers. The 80 MHz core delivers 1.56 DMIPS/MHz (Dhrystone 2.1) and executes most instructions in one clock cycle, while the 10-bit ADC supports 1 Msps conversion with up to 16 analog inputs.
The PIC32MX775F256L architecture pairs an MIPS M4K pipeline with peripheral pin select via PPS, USB-OTG full-speed and high-speed (when paired with external PHY on related parts), and 10/100 Mbps Ethernet MAC. The device supports MPLAB Harmony, MPLAB X IDE, XC32 compiler, and Microchip's TCP/IP, USB, and graphics stacks. The F775 variant specifically integrates an Ethernet MAC plus dual CAN controllers plus USB-OTG, distinguishing it from lower-pinout PIC32MX3xx/4xx parts.
Typical applications include industrial Ethernet gateways, building automation controllers, USB-to-UART bridges with CAN diagnostics, point-of-sale terminals, medical patient monitors, and motor-control inverters with CANopen. The wide 2.3-3.6 V supply and extended industrial temperature make it attractive for factory-floor equipment.
Design consideration: place 0.1 uF decoupling capacitors on every VDD/VSS pair within 3 mm of the pins, route the 80 MHz crystal traces symmetrically with ground guard rings, and use MPLAB Harmony's free TCP/IP stack to shorten firmware time-to-market. For high-EMI environments, enable the on-chip FPLL jitter filter and gate unused peripherals via the peripheral clock control registers.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para PIC32MX775F256LT-80V/PF — 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 PIC32MX775F256LT-80V/PF (mismo factor de forma y huella) — difiere en ADC, DMA Channels, Package, USB, Core Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC32MX775F256L-80V/PF
✅ Sustitución directa✓ En stock
$5.55 / unidad
Ver hoja de datos →PIC32MX695F512L-80V/BG
✅ Sustitución directa✓ En stock
$5.5 / unidad
Ver hoja de datos →PIC32MX675F512L-80V/BG
✅ Sustitución directa✓ En stock
$7.1 / unidad
Ver hoja de datos →PIC32MX775F256LT-80V/PF Valores máximos y características eléctricas
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Frequency | 80 MHz |
| Program Flash Memory | 256 KB |
| SRAM | 64 KB |
| Supply Voltage (VDD) | 2.3 V to 3.6 V |
| GPIO Pins | 51 |
| ADC | 10-bit, up to 16 channels, 1 Msps |
| USB | USB-OTG (full-speed) |
| CAN | 2x CAN 2.0B controllers |
| Ethernet | 10/100 Mbps MAC (requires external PHY) |
| DMA Channels | 8 |
| Timers | 5 x 16-bit, 2 x 32-bit |
| Temperatura de funcionamiento | -40 C to +105 C (industrial, "V" grade) |
| Encapsulado | 100-pin TQFP (14 x 14 mm), lead-free, 0.5 mm pitch |
| Estado RoHS | Compliant (lead-free) |
| Packing Format | Tape & Reel (LT suffix) |
Guía de configuración de pines de PIC32MX775F256LT-80V/PF 100-pin tqfp (14 x 14 mm), lead-free, 0.5 mm pitch
Configuración de pines para PIC32MX775F256LT-80V/PF (encapsulado 100-pin tqfp (14 x 14 mm), lead-free, 0.5 mm pitch). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para PIC32MX775F256LT-80V/PF.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PIC32MX775F256LT-80V/PF es adecuado para 6 aplicacións: Industrial Ethernet Gateway, Building Automation Controller, USB-to-CAN Diagnostic Bridge, Medical Patient Monitor, POS Terminal Controller, Motor Control Inverter (CANopen).
Industrial Ethernet Gateway
The PIC32MX775F256LT-80V/PF is well suited to industrial Ethernet gateways because it integrates a 10/100 Mbps Ethernet MAC, dual CAN 2.0B controllers, and USB-OTG in a single 80 MHz MIPS core - all three interfaces in one die eliminates the need for a companion connectivity chip. The 64 KB RAM holds a TCP/IP socket buffer plus CANopen message queues for protocols such as Modbus TCP, EtherNet/IP, or PROFINET, while the 256 KB Flash fits Microchip's free MPLAB Harmony TCP/IP stack plus application logic. The 2.3-3.6 V supply tolerates noisy 24V-derived rails after regulation, and the -40 C to +105 C "V" grade covers unheated factory cabinets. Pair with an external PHY such as the KSZ8041 for a complete 2-port Ethernet-to-CAN bridge.
Recomendado
Building Automation Controller
Building automation controllers (BACnet, KNX, Modbus gateways) benefit from the PIC32MX775F256LT-80V/PF's combination of USB-OTG for commissioning, dual CAN for HVAC and elevator subsystems, and Ethernet for IP backbone connectivity. The 80 MHz core handles BACnet/IP routing and scheduling at acceptable latency, while the 16-channel 10-bit ADC at 1 Msps reads analog sensors (temperature, humidity, pressure) without external muxes. The 100-pin TQFP provides enough GPIO for relay outputs, keypad inputs, and segment-LCD driving. Microchip's free Harmony BACnet stack ports directly to this part.
Recomendado
USB-to-CAN Diagnostic Bridge
Automotive and industrial diagnostic tools commonly use USB-to-CAN bridges, and the PIC32MX775F256LT-80V/PF is purpose-built for this application. The USB-OTG controller presents a CDC or vendor-class interface to the host PC, while the dual CAN 2.0B controllers connect to OBD-II, CANopen, or DeviceNet networks simultaneously. The 80 MHz core runs the USB stack and CAN firmware with low interrupt latency, and the 64 KB RAM buffers high-speed CAN traffic at 1 Mbit/s without dropping frames. The -40 C to +105 C industrial temperature range suits automotive shop environments.
Recomendado
Medical Patient Monitor
Patient monitors, infusion pumps, and point-of-care diagnostic devices are increasingly connected via Ethernet and USB, and the PIC32MX775F256LT-80V/PF fits this profile. The 80 MHz MIPS core runs real-time vital-sign processing, the 10-bit ADC at 1 Msps captures ECG and SpO2 waveforms, and the Ethernet MAC enables HL7 or DICOM-over-IP connectivity to hospital networks. The USB-OTG port supports clinician-side data export or firmware update. The 64 KB RAM accommodates waveform buffers for at least one second of multi-lead ECG without external memory. Pair with a low-noise analog front-end such as the AD8232 for ECG.
Recomendado
POS Terminal Controller
Point-of-sale terminals require Ethernet for payment processing, USB for peripherals (barcode scanner, receipt printer, customer display), and serial/CAN for cash-drawer integration. The PIC32MX775F256LT-80V/PF consolidates all three interfaces into a single 100-pin TQFP MCU, reducing BOM cost and PCB area. The 256 KB Flash accommodates a TLS stack plus payment-application firmware, while the 64 KB RAM buffers transaction records and crypto operations. The -40 C to +105 C industrial range suits retail back-office and outdoor terminal deployments.
Recomendado
Motor Control Inverter (CANopen)
Variable-frequency drives (VFDs) and servo inverters for industrial motors commonly use CANopen for command/feedback, and the PIC32MX775F256LT-80V/PF's dual CAN 2.0B controllers are ideal for CANopen master or slave nodes. The 80 MHz core handles field-oriented control (FOC) loops at 10-20 kHz switching frequency with the 16-channel ADC sampling phase currents at 1 Msps. The Ethernet MAC adds IoT connectivity for remote monitoring, while USB-OTG supports firmware update and parameter tuning via PC tools. The 100-pin TQFP provides enough GPIO for gate-driver PWM outputs, encoder inputs, and protection signals.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC32MX775F256LT-80V/PF — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC32MX775F256L-80V/PF | PIC32MX695F512L-80V/BG | PIC32MX675F512L-80V/BG |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-100 (PF), 14x14 mm, 0.5 mm pitch | TQFP-100 (PF), 14x14 mm, 0.5 mm pitch - identical | TQFP-100 (BG), 16x16 mm, 1.0 mm pitch - different footprint | TQFP-100 (BG), 16x16 mm, 1.0 mm pitch - different footprint |
| Core / Max Frequency | MIPS M4K, 80 MHz | MIPS M4K, 80 MHz | MIPS M4K, 80 MHz | MIPS M4K, 80 MHz |
| Flash / RAM | 256 KB / 64 KB | 256 KB / 64 KB | 512 KB / 128 KB | 512 KB / 128 KB |
| USB-OTG | Yes | Yes | Yes | Yes |
| CAN 2.0B Controllers | 2 | 2 | 2 | 2 |
| Ethernet MAC | 10/100 (external PHY) | 10/100 (external PHY) | 10/100 (external PHY) | 10/100 (external PHY) |
| Hardware Crypto Engine | No | No | Yes (AES + RNG) | No |
| Operating Temperature | -40 C to +105 C (V grade) | -40 C to +105 C (V grade) | -40 C to +105 C (V grade) | -40 C to +105 C (V grade) |
Diferenciadores clave
- Single-chip triple connectivity: USB-OTG + dual CAN + Ethernet MAC (frente a PIC32MX575F256L-80V/PF)
- Doubles memory vs. lowest-tier MX3xx/MX4xx parts (frente a PIC32MX450F256L-V/PF)
- Upgrade path to 512 KB Flash / 128 KB RAM in same family (frente a PIC32MX695F512L-80V/BG)
- Industrial -40 C to +105 C operating range ("V" grade) (frente a PIC32MX775F256L-80I/PF (I grade))
Notas de diseño
Place a 0.1 uF decoupling capacitor within 3 mm of every VDD/VSS pair on the PIC32MX775F256LT-80V/PF. The 100-pin TQFP has multiple VDD pins (VDD, AVDD, VBUS, VBAT for the F-variant family) - each must have its own local decoupling. Add a bulk 10 uF tantalum or ceramic near the regulator to handle the 80 MHz core's transient current demands during DMA bursts. The Ethernet MAC's RMII clock (50 MHz) and USB 48 MHz clock are both derived from the primary oscillator and require clean supply rail decoupling.
Route the 80 MHz primary oscillator traces (between the crystal/oscillator and OSC1/OSC2 pins) as short, symmetric, impedance-controlled traces surrounded by a ground guard ring. Avoid routing any high-speed signals (USB D+/D-, Ethernet RMII, CAN bus) parallel to the oscillator traces. The 100-pin TQFP has pins on all four sides - use a 4-layer PCB with a dedicated ground plane beneath the MCU to provide a low-impedance return path for high-speed signals and to reduce EMI from the 80 MHz fundamental clock.
USB-OTG D+/D- traces on the PIC32MX775F256LT-80V/PF must be routed as a 90-ohm differential pair with matched length (within 150 mil). Add a 15 kohm pull-down on D+ and 15 kohm pull-up on D- for full-speed device detection, or use the internal pull-up/pull-down resistors controlled by firmware. For Ethernet RMII to the external PHY, route the 50 MHz reference clock, RX/TX data, and CRS_DV/CRS signals as matched-length traces. Terminate CAN bus with 120 ohm resistors at each end; route CANH/CANL as a twisted pair.
Estimated: the PIC32MX775F256LT-80V/PF at 80 MHz core clock with all peripherals active typically dissipates around 300-400 mW (3.3 V x 100-120 mA). The 100-pin TQFP has a theta_JA of approximately 40-50 C/W on a standard 4-layer JEDEC test board, giving a junction-to-ambient rise of 12-20 C above ambient at typical 100 mA load. Industrial-grade "V" parts rated to +105 C ambient have approximately 85-90 C headroom before thermal shutdown (typical internal shutdown at 150-160 C). For high-ambient (>85 C) enclosed designs, consider reducing core clock to 60 MHz or adding thermal vias beneath the exposed pad (where present on related parts).
Do not confuse the PIC32MX775F256LT-80V/PF with the F-variant PIC32MX775F512L-80V/PF - the part numbers are very similar but the F512 variant has 512 KB Flash / 128 KB RAM and the F256 has 256 KB / 64 KB. Also verify that JTAG (TMS, TCK, TDI, TDO) is correctly wired before power-up - mis-wired JTAG can sometimes brick the part or trigger unwanted code-execution at reset. Always enable the on-chip FPLL jitter filter in software (OSCCON<FRCDIV>) for EMI-sensitive applications, and gate unused peripherals via the peripheral clock control registers to save power.
Información de cumplimiento
Lead-free per the /PF suffix and "LEAD FREE" marking in the chip1stop datasheet snippet. RoHS and REACH compliance are standard Microchip policies. AEC-Q100 not applicable for industrial MCU - this part is not automotive-qualified. Halogen-free status not stated in the verified web data; default to unknown.
