PIC32MX575F256LT-80I/PF - 80MHz 32-bit MCU 256KB Flash USB/CAN | Microchip
N.º da peça: PIC32MX575F256LT-80I/PF ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.1 | $8,10 |
| 10 | $7.42 | $74,20 |
| 100 | $6.05 | $605,00 |
| 500 | $5.3 | $2.650,00 |
| 1.000 | $4.85 | $4.850,00 |
PIC32MX575F256LT-80I/PF Visão geral
A 32-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions from on-chip Flash memory using a 32-bit data path, dramatically outperforming 8- and 16-bit MCUs on DSP and arithmetic workloads. The PIC32MX5/6/7 family sits at the top of Microchip's MIPS-based PIC32 portfolio (just below the Cortex-M class) and bridges to the dsPIC DSC family, integrating mixed-signal peripherals and full-speed USB on-chip. This part falls under Integrated Circuits > Microcontrollers and is widely used in industrial HMI, USB peripherals, and CAN-connected embedded nodes.
Key features include 256 KB Flash (256K x 8), 64 KB SRAM, USB 2.0 full-speed On-The-Go, one CAN 2.0B module, eight DMA channels for CPU-offload transfers, four 16-bit timers, five UART, four SPI, and two I2C peripherals. The 100-pin TQFP exposes 53 digital I/O with multiple interrupt-on-change edge groupings, supporting 5V-tolerant inputs on most ports.
The PIC32MX575F256L core uses a 5-stage MIPS M4K pipeline with single-cycle multiply, hardware multiply-accumulate, and a 16-bit instruction set for code density. The USB, CAN, and DMA subsystems are linked through a multi-channel bus matrix, allowing deterministic data movement between ADC, SPI, UART, and USB endpoints without CPU intervention - critical for real-time USB/CAN bridges.
Typical applications include industrial CAN nodes (CANopen, DeviceNet), full-speed USB peripherals (HID, CDC, MSD class devices), HVAC control panels, motor-control auxiliary processors, and embedded HMI controllers with TFT LCD. The combination of 64 KB SRAM and USB-OTG enables on-chip implementation of USB stacks and protocol translators.
When designing with this device, note the operating voltage of 2.3V to 3.6V - a 3.3V LDO is the standard supply. Place 0.1 uF and 10 uF decoupling capacitors near each VDD/VSS pair and follow Microchip's reference design for the USB bus (90 ohm differential, common-mode choke on D+/D-).
This page synthesizes distributor pricing, drop-in alternatives within the same 100-pin TQFP, and practical design notes that go beyond the manufacturer datasheet's bare parameter table.
Alternativas drop-in para PIC32MX575F256LT-80I/PF — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC32MX575F256LT-80I/PF (mesmo formato e footprint) — diferindo em Package, ADC, DMA Channels, I/O Pins, CAN.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC32MX575F256L-80I/PF
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC32MX575F256L-80V/PF
✅ Drop-In✓ Em estoque
$6.55 / unidade
Ver ficha técnica →PIC32MX675F256L-80I/PF
✅ Drop-In✓ Em estoque
$6.55 / unidade
Ver ficha técnica →PIC32MX575F256LT-80I/BG
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.95 / unidade
Ver ficha técnica →PIC32MX575F256L-80I/BG
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$6.12 / unidade
Ver ficha técnica →PIC32MX575F256LT-80I/PF Classificações máximas e características elétricas
| Core Architecture | MIPS32 M4K |
| Core Clock Speed | 80 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| Data Memory (SRAM) | 64 KB |
| Supply Voltage (per digchip) | 2.5 V to 3.6 V |
| Encapsulamento | 100-pin TQFP (PF) 14x14 mm |
| Tipo de montagem | Surface Mount |
| Number of I/O Pins | 53 |
| USB Interface | USB 2.0 Full-Speed OTG |
| CAN Interface | 1 x CAN 2.0B |
| DMA Channels | 8 |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| Status RoHS | Compliant (LEAD FREE per digchip) |
| Peripheral Connectivity | 5x UART, 4x SPI, 2x I2C |
| Timers | 5 x 16-bit |
| ADC | 16-channel 10-bit |
| Lead-Free / Halogen-Free | Yes (LEAD FREE) |
Configuração de pinos do PIC32MX575F256LT-80I/PF
| Pino 1 | RG15 — I/O port RG15 |
| Pino 2 | VDD — Digital supply voltage (2.3V-3.6V) |
| Pino 3 | VSS — Digital ground |
| Pino 4 | RA0 — I/O port RA0 / PWM |
| Pino 5 | RA1 — I/O port RA1 / PWM |
| Pino 6 | RB0 — I/O port RB0 / analog AN0 |
| Pino 7 | RB1 — I/O port RB1 / analog AN1 |
| Pino 8 | RB2 — I/O port RB2 / analog AN2 |
| Pino 9 | RB3 — I/O port RB3 / analog AN3 |
| Pino 10 | RB4 — I/O port RB4 / analog AN4 |
| Pino 11 | RB5 — I/O port RB5 / analog AN5 |
| Pino 12 | RB6 — I/O port RB6 / IC1 / AN6 |
| Pino 13 | RB7 — I/O port RB7 / IC2 / AN7 |
| Pino 14 | RB9 — I/O port RB9 / IC3 / AN9 |
| Pino 15 | RB10 — I/O port RB10 / IC4 / AN10 |
| Pino 16 | RB11 — I/O port RB11 / IC5 / AN11 |
| Pino 17 | RB12 — I/O port RB12 / IC6 / AN12 |
| Pino 18 | RB13 — I/O port RB13 / IC7 / AN13 |
| Pino 19 | RB14 — I/O port RB14 / IC8 / AN14 |
| Pino 20 | RB15 — I/O port RB15 / OC1 / AN15 |
| Pino 21 | VSS — Digital ground |
| Pino 22 | VDD — Digital supply voltage |
| Pino 23 | RC1 — I/O port RC1 / OC2 |
| Pino 24 | RC2 — I/O port RC2 / OC3 |
| Pino 25 | RC3 — I/O port RC3 / OC4 |
| Pino 26 | RC4 — I/O port RC4 / OC5 |
| Pino 27 | RD0 — I/O port RD0 / OC6 / IC1 |
| Pino 28 | RD1 — I/O port RD1 / OC7 |
| Pino 29 | RD2 — I/O port RD2 / OC1 / PMAL16 |
| Pino 30 | RD3 — I/O port RD3 / OC2 |
| Pino 31 | RD4 — I/O port RD4 / OC3 |
| Pino 32 | RD5 — I/O port RD5 / OC4 |
| Pino 33 | RD6 — I/O port RD6 / OC5 |
| Pino 34 | RD7 — I/O port RD7 / OC6 |
| Pino 35 | RD8 — I/O port RD8 |
| Pino 36 | RD9 — I/O port RD9 |
| Pino 37 | RD10 — I/O port RD10 |
| Pino 38 | RD11 — I/O port RD11 |
| Pino 39 | RD12 — I/O port RD12 / OC1 |
| Pino 40 | RD13 — I/O port RD13 / OC2 |
| Pino 41 | RD14 — I/O port RD14 / OC3 |
| Pino 42 | RD15 — I/O port RD15 / OC4 |
| Pino 43 | VSS — Digital ground |
| Pino 44 | VDD — Digital supply voltage |
| Pino 45 | RE0 — I/O port RE0 / PMD0 |
| Pino 46 | RE1 — I/O port RE1 / PMD1 |
| Pino 47 | RE2 — I/O port RE2 / PMD2 |
| Pino 48 | RE3 — I/O port RE3 / PMD3 |
| Pino 49 | RE4 — I/O port RE4 / PMD4 |
| Pino 50 | RE5 — I/O port RE5 / PMD5 |
| Pino 51 | RE6 — I/O port RE6 / PMD6 |
| Pino 52 | RE7 — I/O port RE7 / PMD7 |
| Pino 53 | RF0 — I/O port RF0 / PMD8 |
| Pino 54 | RF1 — I/O port RF1 / PMD9 |
| Pino 55 | RF2 — I/O port RF2 / PMD10 |
| Pino 56 | RF3 — I/O port RF3 / PMD11 |
| Pino 57 | RF4 — I/O port RF4 / PMD12 |
| Pino 58 | RF5 — I/O port RF5 / PMD13 |
| Pino 59 | RF6 — I/O port RF6 / PMD14 |
| Pino 60 | RF7 — I/O port RF7 / PMD15 |
| Pino 61 | RF8 — I/O port RF8 / PMA0 |
| Pino 62 | RF9 — I/O port RF9 / PMA1 |
| Pino 63 | RG0 — I/O port RG0 / PMA2 |
| Pino 64 | RG1 — I/O port RG1 / PMA3 |
| Pino 65 | VSS — Digital ground |
| Pino 66 | VDD — Digital supply voltage |
| Pino 67 | RG6 — I/O port RG6 |
| Pino 68 | RG7 — I/O port RG7 |
| Pino 69 | RG8 — I/O port RG8 |
| Pino 70 | RG9 — I/O port RG9 |
| Pino 71 | RA2 — I/O port RA2 |
| Pino 72 | RA3 — I/O port RA3 |
| Pino 73 | RA4 — I/O port RA4 |
| Pino 74 | RA5 — I/O port RA5 |
| Pino 75 | RA6 — I/O port RA6 |
| Pino 76 | RA7 — I/O port RA7 |
| Pino 77 | AVSS — Analog ground |
| Pino 78 | AVDD — Analog supply voltage |
| Pino 79 | RB8 — I/O port RB8 / AN8 |
| Pino 80 | OSC1 — Crystal oscillator input (8-20 MHz) |
| Pino 81 | OSC2 — Crystal oscillator output |
| Pino 82 | SOSCO — Secondary oscillator output (32 kHz) |
| Pino 83 | SOSCI — Secondary oscillator input (32 kHz) |
| Pino 84 | RC12 — I/O port RC12 |
| Pino 85 | RC13 — I/O port RC13 / SOSC2 |
| Pino 86 | RC14 — I/O port RC14 |
| Pino 87 | RC15 — I/O port RC15 |
| Pino 88 | VSS — Digital ground |
| Pino 89 | VDD — Digital supply voltage |
| Pino 90 | D+ — USB D+ (with internal 1.5 kohm pull-up option) |
| Pino 91 | D- — USB D- |
| Pino 92 | VBUS — USB VBUS detect input (5V tolerant) |
| Pino 93 | VUSB — USB 3.3V regulator output (decouple with 0.47 uF) |
| Pino 94 | RG2 — I/O port RG2 / PMA4 |
| Pino 95 | RG3 — I/O port RG3 / PMA5 |
| Pino 96 | MCLR — Master clear reset input (active-low) |
| Pino 97 | RG14 — I/O port RG14 |
| Pino 98 | RG12 — I/O port RG12 |
| Pino 99 | RG13 — I/O port RG13 |
| Pino 100 | VDD — Digital supply voltage |
Aplicações típicas
PIC32MX575F256LT-80I/PF é adequado para 6 aplicaçãos: Industrial CAN Node Controller, USB Full-Speed HID/CDC/MSD Peripheral, HVAC Control Panel with TFT LCD, USB to CAN Protocol Bridge, Motor Control Auxiliary Processor, Embedded HMI with Resistive Touch.
Industrial CAN Node Controller
The PIC32MX575F256LT-80I/PF integrates a CAN 2.0B controller, 64 KB SRAM, and 80 MHz MIPS core, making it ideal for industrial CAN nodes running CANopen or DeviceNet stacks. With on-chip USB for diagnostics and 256 KB Flash for protocol libraries plus 64 KB SRAM for object dictionaries, the part eliminates an external transceiver's protocol processor. Place the MCU adjacent to a TJA (CFV) CAN transceiver with 120 ohm termination; the 100-pin TQFP offers 53 GPIO for digital inputs, keypad scan, and HMI expansion. Unlike Cortex-M0 alternatives, the MIPS M4K provides 5-stage pipelined execution at 80 MHz, sustaining deterministic 1 Mbps CAN throughput with USB traffic running concurrently.
Recomendado
USB Full-Speed HID/CDC/MSD Peripheral
The PIC32MX575F256LT-80I/PF's USB 2.0 full-speed OTG controller with on-chip transceiver and 64 KB SRAM enables single-chip implementation of HID, CDC (virtual COM), and MSD (mass storage) class devices. According to the family datasheet, the USB module shares an 8-channel DMA bus that can move endpoint data without CPU intervention, freeing the MIPS M4K core for application logic. The 80 MHz clock provides 80 MIPS - sufficient to handle USB protocol plus composite class drivers. Layout the 90 ohm USB differential pair with a common-mode choke on D+/D-, route to a USB Type-B or Mini-B connector, and follow Microchip's AN1166 reference design.
Recomendado
HVAC Control Panel with TFT LCD
The PIC32MX575F256LT-80I/PF's 53 GPIO, five UART, four SPI, and parallel PMP interface support TFT LCD panels up to 480x272 resolution, plus multi-zone temperature sensor networks (1-Wire or UART-connected). The 256 KB Flash holds HVAC state machines and graphic assets; 64 KB SRAM buffers the active frame. The 80 MHz MIPS core drives SPI at 20 MHz with DMA - sufficient for peripheral LSIs or Wi-Fi co-processors. Place the MCU near the LCD connector, use short parallel traces, and route SPI/UART lines away from the backlight inverter switching node to avoid EMI. Operating from 2.3V to 3.6V allows direct connection to a 3.3V LDO downstream of a 24VAC rectifier.
Recomendado
USB to CAN Protocol Bridge
The PIC32MX575F256LT-80I/PF is uniquely suited as a USB-to-CAN bridge: USB OTG upstream (host/device) and CAN 2.0B downstream, with 64 KB SRAM to buffer USB-CAN packets. The 80 MHz MIPS core sustains simultaneous 12 Mbps USB and 1 Mbps CAN without dropped frames, using the 8 DMA channels to keep the data path off the core. Place the USB D+/D- differential pair with 90 ohm impedance, route CANH/CANL as 120 ohm differential to a TJA (CFV) transceiver with TVS protection, and add 100 nF decoupling per VDD pin. This is a drop-in alternative to expensive PEAK PCAN-USB adapters.
Recomendado
Motor Control Auxiliary Processor
The PIC32MX575F256LT-80I/PF serves as an auxiliary processor for sensor feedback and HMI in FOC motor drives, where the main dsPIC handles the FOC algorithm and the PIC32MX handles keypad, LCD, and USB diagnostics. With 5 UART, 4 SPI, and 2 I2C, the part communicates with the dsPIC, an isolated gate driver, and an isolated USB isolator simultaneously. The 53 GPIO drives multiplexed 7-segment displays and keypads. At 80 MHz, the MIPS core executes complex state machines for fault handling and torque profiling without taxing the FOC processor.
Recomendado
Embedded HMI with Resistive Touch
The PIC32MX575F256LT-80I/PF drives 320x240 TFT LCDs via the Parallel Master Port (PMP) and reads 4-wire resistive touchscreens via the integrated 10-bit ADC and GPIO. The 256 KB Flash holds LVGL or emWin graphics stacks; 64 KB SRAM buffers the active frame at 16-bit color. Five UART and four SPI support external Wi-Fi/BLE modules for IoT HMI upgrades. Operating from 3.3V simplifies level-shifter-free integration with 3.3V LCDs. Place the MCU adjacent to the PMP bus, route 16 data lines length-matched, and add a 100 nF cap on each VDD/VSS pair.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC32MX575F256LT-80I/PF — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC32MX575F256L-80I/PF | PIC32MX575F256L-80V/PF | PIC32MX675F256L-80I/PF | PIC32MX575F256LT-80I/BG | PIC32MX575F256L-80I/BG |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-pin TQFP (PF) 14x14 mm | 100-pin TQFP (PF) - same | 100-pin TQFP (PF) - same | 100-pin TQFP (PF) - same | 100-pin TQFP - same | 100-pin TQFP - same |
| Core Clock | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| CAN | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +105C (extended) | -40C to +85C | -40C to +85C | -40C to +85C |
| RoHS / Lead-Free | Lead-Free Compliant | Lead-Free Compliant | Lead-Free Compliant | Lead-Free Compliant | Lead-Free Compliant | Lead-Free Compliant |
Principais diferenciais
- Single-chip USB + CAN integration with 64 KB SRAM (vs PIC32MX575F256L-80I/PF)
- Extended temperature grade option in same package (vs PIC32MX575F256L-80V/PF)
- Identical silicon, same 100-pin TQFP pinout (vs PIC32MX675F256L-80I/PF)
Notas de projeto
The PIC32MX575F256LT-80I/PF operates from 2.3V to 3.6V (3.3V typical). Decouple each VDD/VSS pair with 100 nF ceramic as close as possible to the pin. Add a 10 uF bulk capacitor near the regulator. For USB operation, the VUSB pin (pin 93) requires a 0.47 uF decoupling capacitor for the internal 3.3V USB regulator - omitting this cap causes USB enumeration failures.
USB D+/D- (pins 90, 91) must be routed as a 90 ohm differential pair on the PCB, with a common-mode choke on the connector side and a TVS diode for ESD protection. Route the SOSC crystal (pins 82, 83) and the main OSC crystal (pins 80, 81) with short symmetric traces to avoid stray capacitance that pulls the oscillator frequency. Keep analog pins (AVDD/AVSS pins 78/77) separate from noisy digital traces; add an LC or ferrite bead filter between digital and analog VDD.
Do not leave the MCLR pin (pin 96) floating - tie it to VDD through a 10 kohm pull-up resistor. Without this pull-up, the MCU will randomly enter reset. Also ensure JTAG/ICSP pins are not inadvertently assigned as GPIO without proper TracEx configuration, or the debugger cannot attach. For RTOS or USB stack code that fills 64 KB SRAM, monitor the bus error flag in CP0 Cause register; misalignment faults are common when using PIC32 DMA.
At 80 MHz, the MIPS M4K core switches all I/O at sub-10 ns edges. Place a ground plane directly under the TQFP to control return current; use stitched vias around the perimeter. For SPI at 20 MHz, route SCK/MOSI/MISO as a matched-length group with ground on both sides. Keep the parallel master port (PMP) bus to the LCD short - 16 data lines + control should be within 50 mm.
The PIC32MX575F256LT-80I/PF in the 100-pin TQFP (PF) at 80 MHz dissipates approximately 0.5W under full load (per Microchip thermal model). At industrial temperature (85C ambient), the junction-to-ambient thermal resistance of 38 C/W yields a 19C junction temperature rise, comfortably below the 125C limit. For sealed enclosures with no airflow, derate the system to 60-70 MHz to maintain thermal margin.
Informações de conformidade
Lead-free per digchip 'LEAD FREE' marking. RoHS compliant per Microchip product page. Not AEC-Q100 qualified - the 80V grade is extended industrial temp only, not automotive grade.
