PIC32MX254F128D-V/PT - 32-bit MCU 128KB Flash USB | Microchip
Артикул: PIC32MX254F128D-V/PT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $6.85 | $6,85 |
| 10 | $6.18 | $61,80 |
| 100 | $5.52 | $552,00 |
| 500 | $4.96 | $2.480,00 |
| 1.000 | $4.45 | $4.450,00 |
PIC32MX254F128D-V/PT Обзор
What is a PIC32MX microcontroller? The PIC32MX is a family of 32-bit flash microcontrollers from Microchip Technology built on the MIPS32 M4K core. They occupy the mid-range performance tier of Microchip's 32-bit MCU portfolio, bridging 8-bit PIC16/PIC18 and higher-performance Cortex-M devices. PIC32MX devices integrate rich peripherals (USB, CAN, ADC, comparators, CTMU, RTCC) while retaining the PIC ecosystem's MPLAB X IDE and Harmony framework compatibility.
Key features of the PIC32MX254F128D-V/PT include: a 72 MHz maximum CPU clock, 128KB program Flash, 32KB SRAM, full-speed USB 2.0 device/host/OTG, three analog comparators, a 13-channel 10-bit 1 Msps ADC, and Peripheral Pin Select (PPS) for flexible pin mapping. The XLP extensions cut run current to ~20 µA/MHz and deep-sleep current to the nA range, with fast wake-up from deep sleep.
The device uses a 5-stage pipeline MIPS32 M4K core with single-cycle multiply and hardware divide. Separate PLLs serve the system clock and the 48 MHz USB clock, allowing CPU and USB to run independently. The integrated charge time measurement unit (CTMU) supports capacitive touch sensing, while the RTCC module keeps accurate time in deep sleep.
Typical applications include automotive body and HMI modules, USB peripherals (CDC/HID/MSD), low-power IoT edge nodes, capacitive touch keypads, and small graphic HMI displays. The wide temperature range and AEC-Q100 qualification also suit industrial control boards exposed to harsh environments.
When designing with this part, note the 44-pin TQFP exposed pad must be soldered to the PCB ground plane for thermal dissipation and signal integrity. Use MPLAB X IDE with XC32 compiler for firmware development. The automotive-grade (-V) variant differs from the industrial-grade (-I) only in qualification testing and temperature range.
Аналоги без доработки для PIC32MX254F128D-V/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC32MX254F128D-V/PT (тот же форм-фактор и посадочное место) — отличается по Package, Core Architecture, Maximum CPU Speed, Operating Temperature, Mounting Type.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC32MX254F128D-I/PT
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →PIC32MX254F128DT-I/ML
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$2.62 / шт.
Открыть даташит →PIC32MX250F128D-V/PT
✅ Прямая замена✓ В наличии
$4.35 / шт.
Открыть даташит →PIC32MX174F256D-I/PT
✅ Прямая замена✓ В наличии
$3.21 / шт.
Открыть даташит →PIC32MX230F128H-I/PT
✅ Прямая замена✓ В наличии
$2.78 / шт.
Открыть даташит →PIC32MX254F128D-V/PT Максимальные параметры и электрические характеристики
| Core Architecture | MIPS32 M4K |
| CPU Width | 32-bit |
| Maximum CPU Clock | 72 MHz |
| Program Flash | 128 KB (128K x 8) |
| SRAM | 32 KB |
| Напряжение питания | 2.3 V to 3.6 V |
| Рабочая температура | -40 C to +105 C (automotive -V grade) |
| Корпус | 44-pin TQFP (10x10x1 mm) |
| Тип монтажа | Surface Mount (Tray) |
| USB | USB 2.0 Full-Speed Device/Host/OTG |
| ADC | 10-bit, up to 1 Msps |
| Analog Comparators | 3 |
| Peripheral Pin Select (PPS) | Yes |
| DMA | Up to 4 channels |
| UART / I2C / SPI | 2 UART, 2 I2C, 2 SPI (with PPS remapping) |
| CTMU | Yes (Capacitive Touch) |
| RTCC | Yes (Real-Time Clock/Calendar) |
| AEC-Q100 Grade | Yes (automotive qualified) |
| Уровень MSL | 3 (168 hours) |
| Статус RoHS | Compliant |
Конфигурация выводов PIC32MX254F128D-V/PT
| Контакт 1 | RPB0/AN0/C1INA/CTED1/RB0 — GPIO RB0 / analog input AN0 / comparator 1 input A |
| Контакт 2 | RPB1/AN1/C1INB/CTED2/RB1 — GPIO RB1 / analog input AN1 / comparator 1 input B |
| Контакт 3 | RPB2/AN2/C1IND/C2INB/RB2 — GPIO RB2 / analog input AN2 / comparator inputs |
| Контакт 4 | RPB3/AN3/C1INC/C2INA/RB3 — GPIO RB3 / analog input AN3 / comparator inputs |
| Контакт 5 | VDD — Positive supply voltage (3.3V typical) |
| Контакт 6 | VSS — Ground reference |
| Контакт 7 | RPB4/AN4/C1INB/C2IND/RB4 — GPIO RB4 / analog input AN4 |
| Контакт 8 | SDA1/RPB5/PMD5/RB5 — I2C1 SDA / GPIO RB5 / PMP data 5 |
| Контакт 9 | SCL1/RPB6/PMD6/RB6 — I2C1 SCL / GPIO RB6 / PMP data 6 |
| Контакт 10 | RPB7/PMD7/RB7 — GPIO RB7 / PMP data 7 |
| Контакт 11 | VSS — Ground reference |
| Контакт 12 | VDD — Positive supply voltage (3.3V typical) |
| Контакт 13 | SOSCI/RPC0/RC0 — Secondary oscillator input / GPIO RC0 |
| Контакт 14 | SOSCO/RPC1/RC1 — Secondary oscillator output / GPIO RC1 |
| Контакт 15 | RPB8/AN8/RB8 — GPIO RB8 / analog input AN8 |
| Контакт 16 | RPB9/AN9/RB9 — GPIO RB9 / analog input AN9 |
| Контакт 17 | TMS/RPB10/AN10/RB10 — JTAG TMS / GPIO RB10 / AN10 |
| Контакт 18 | TCK/RPB11/AN11/RB11 — JTAG TCK / GPIO RB11 / AN11 |
| Контакт 19 | TDI/RPB12/AN12/RB12 — JTAG TDI / GPIO RB12 / AN12 |
| Контакт 20 | TDO/RPB13/AN13/RB13 — JTAG TDO / GPIO RB13 / AN13 |
| Контакт 21 | RPB14/CVREF/AN14/PMCS1/RB14 — GPIO RB14 / comparator Vref output / AN14 |
| Контакт 22 | RPB15/AN15/PMCS2/RB15 — GPIO RB15 / AN15 |
| Контакт 23 | VSS — Ground reference |
| Контакт 24 | VDD — Positive supply voltage (3.3V typical) |
| Контакт 25 | D-/RG3 — USB D- (Full-Speed USB data line) |
| Контакт 26 | D+/RG2 — USB D+ (Full-Speed USB data line) |
| Контакт 27 | VBUS — USB VBUS sense input |
| Контакт 28 | VUSB — USB internal transceiver supply / bypass |
| Контакт 29 | RPC6/RPC6 — GPIO RC6 |
| Контакт 30 | RPC7/RPC7 — GPIO RC7 |
| Контакт 31 | RPC8/RPC8 — GPIO RC8 |
| Контакт 32 | RPC9/RPC9 — GPIO RC9 |
| Контакт 33 | VDD — Positive supply voltage (3.3V typical) |
| Контакт 34 | RPG6/RG6 — GPIO RG6 |
| Контакт 35 | RPG7/RG7 — GPIO RG7 |
| Контакт 36 | RPG8/RG8 — GPIO RG8 |
| Контакт 37 | RPG9/RG9 — GPIO RG9 |
| Контакт 38 | OA1OUT/AN0/CVD — Op-amp 1 output / analog input |
| Контакт 39 | OA1IN-/AN1 — Op-amp 1 inverting input |
| Контакт 40 | OA1IN+/AN2 — Op-amp 1 non-inverting input |
| Контакт 41 | VREF-/CVREF- — ADC negative reference |
| Контакт 42 | VREF+/CVREF+ — ADC positive reference |
| Контакт 43 | AVDD — Analog supply voltage |
| Контакт 44 | AVSS — Analog ground |
Типичное применение
PIC32MX254F128D-V/PT подходит для 6 применениеs: Automotive Body Control Modules, USB HID / CDC Peripheral Devices, Capacitive Touch Keypads, Low-Power IoT Edge Sensor Nodes, Industrial HMI Displays, Appliance and White-Goods Control.
Automotive Body Control Modules
The PIC32MX254F128D-V/PT is purpose-built for automotive body and HMI control applications. Its AEC-Q100 qualification, -40 C to +125 C operating range, and 72 MHz MIPS32 M4K core handle tasks such as CAN-LIN gateway bridging, lighting control, door module logic, and HVAC user interface. The 128KB Flash supports OSEK/OSEKtime or AUTOSAR-like layered software stacks, while 32KB SRAM buffers communication queues. Integrated USB serves diagnostics interfaces during end-of-line programming and dealer service tool connectivity. The XLP deep-sleep mode with sub-µA current preserves battery life when the vehicle is parked.
Рекомендуется
USB HID / CDC Peripheral Devices
The PIC32MX254F128D-V/PT delivers full-speed USB 2.0 device/host/OTG at 12 Mbps with on-chip transceiver and dedicated 48 MHz USB PLL. The 72 MHz core and 32KB SRAM comfortably run USB stacks (HID, CDC, MSD) plus application logic for custom peripherals such as data loggers, configurators, and instrument front panels. PPS allows flexible mapping of USB D+/D- and interrupt endpoints without external mux logic. The device supports bootloader mode over USB, enabling field firmware upgrades. With MPLAB Harmony USB stack, typical HID enumeration completes in under 200 ms.
Рекомендуется
Capacitive Touch Keypads
The PIC32MX254F128D-V/PT integrates the CTMU (Charge Time Measurement Unit) for capacitive touch sensing without an external touch IC. Each analog pin can be configured as a touch channel, and the device supports up to 13 channels with hardware-driven charge timing for noise-immune readings. The 10-bit ADC, 3 analog comparators, and PPS assist with proximity sensing and backlight control. With 128KB Flash and 32KB SRAM, the MCU runs Microchip's mTouch libraries while maintaining responsive host communication. Deep-sleep currents in the nA range extend battery life on wireless touch remotes.
Рекомендуется
Low-Power IoT Edge Sensor Nodes
The PIC32MX254F128D-V/PT's XLP extensions suit battery-powered sensor nodes that spend most of their time in deep sleep. Run current of ~20 µA/MHz at 3.3V and deep-sleep current in the nA range (with RTCC running) enable multi-year battery life on 2xAA cells. The 13-channel ADC, 3 comparators, and CTMU handle diverse sensors (temperature, humidity, light, capacitive level). RTCC keeps accurate time during sleep, while DMA offloads data movement. The USB interface supports easy configuration from a host PC during installation or service. XLP wake-up from sleep in microseconds makes it suitable for event-driven sensing.
Рекомендуется
Industrial HMI Displays
The PIC32MX254F128D-V/PT's 72 MHz core, 128KB Flash, and 32KB SRAM handle small graphic HMI panels driving LCD or OLED displays up to QVGA resolution. PPS remaps UART/SPI/I2C to any digital pin, simplifying PCB routing to displays, keypads, and external sensors. The 10-bit ADC reads analog inputs such as potentiometers and thermistors, while the comparators detect threshold events without CPU intervention. AEC-Q100 qualification and the wide temperature range suit industrial control panels in factory automation, HVAC, and machinery where reliability is critical.
Рекомендуется
Appliance and White-Goods Control
The PIC32MX254F128D-V/PT targets appliance control boards (washing machines, dishwashers, ovens, refrigerators) requiring reliable mixed-signal control. Three analog comparators handle zero-crossing detection on AC lines, the 10-bit ADC reads temperature sensors (NTC, PTC), and PWM outputs drive motor control or TRIAC firing. The 72 MHz MIPS core runs RTOS-based control loops for motor management. AEC-Q100 grade and the -40 C to +125 C range cover the thermal stress of appliance environments, while the 44-pin TQFP package fits within space-constrained board layouts.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC32MX254F128D-V/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC32MX254F128D-I/PT | PIC32MX250F128D-V/PT | PIC32MX174F256D-I/PT | PIC32MX230F128H-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (10x10x1 mm) | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same | 44-pin TQFP (10x10) - same |
| Core Architecture | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit | MIPS32 M4K 32-bit |
| Maximum CPU Clock | 72 MHz | 72 MHz | 50 MHz | 40 MHz | 50 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 256 KB | 128 KB |
| SRAM | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| USB | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | USB 2.0 FS Device/Host/OTG | No USB | No USB |
| AEC-Q100 Grade | Yes (automotive, -40 to +125 C) | No (industrial, -40 to +85 C) | Yes (automotive, -40 to +125 C) | No (industrial, -40 to +85 C) | No (industrial, -40 to +85 C) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| Approx. Unit Price (1k qty) | ~$4.45 | ~$3.95 | ~$4.20 | ~$4.60 | ~$3.80 |
Ключевые отличия
- 72 MHz CPU vs 50 MHz on PIC32MX250 family (против PIC32MX250F128D-V/PT)
- AEC-Q100 automotive qualification with -40 to +125 C range (против PIC32MX254F128D-I/PT)
- Integrated Full-Speed USB 2.0 (против PIC32MX230F128H-I/PT)
- Larger 128KB Flash than PIC32MX1xx (256KB option in 174 family uses more area) (против PIC32MX174F256D-I/PT)
Заметки по проектированию
Estimated: at 72 MHz full speed, the PIC32MX254F128D-V/PT core draws roughly 20 mA. USB-enabled devices should use a separate 3.3V LDO for VUSB (pin 28) and decouple with a 0.1 µF + 4.7 µF combination. Use MCP1700 (250 mA LDO, 1.6 µA Iq) for battery-powered designs to preserve XLP deep-sleep currents. Place bulk decoupling (10 µF ceramic + 0.1 µF) within 5 mm of each VDD/VSS pin pair.
The 44-pin TQFP exposed pad (pin 44 region / die-attach paddle) must be soldered to a PCB ground copper pour for thermal dissipation. Estimated: without a ground pour, theta_JA can exceed 70 C/W; with a 1 square inch 2-oz copper pour, theta_JA drops to ~30 C/W. At full 72 MHz with all peripherals active (~20 mA from 3.3V), internal dissipation is roughly 66 mW, well below thermal limits.
Route USB D+/D- as a 90 ohm differential pair with controlled impedance. Keep traces short and length-matched within 2 mm. Place the VUSB bypass capacitor (0.1 µF + 4.7 µF) within 3 mm of the VUSB pin. JTAG signals (TMS, TCK, TDI, TDO) require series resistors (~33 ohm) near the MCU for signal integrity. Separate analog AVSS/AVDD traces from noisy digital switching lines, with a ferrite bead or pi-filter on AVDD if ADC performance is critical.
Do not exceed 3.6V on any VDD pin - the part has no internal 5V tolerance. PPS-mapped peripherals must be unlocked by writing the IOLOCK bit; otherwise peripheral functions will not appear on their mapped pins. USB enumeration requires a stable 48 MHz USB PLL clock - ensure the oscillator start-up timer is allowed to complete before USB attach. JTAG is multiplexed on RB10-RB13; disable JTAG in firmware (DDPCON bit) to recover those pins for GPIO if not needed.
Информация о соответствии
AEC-Q100 qualified per the -V suffix. RoHS and lead-free compliant per Microchip product environmental compliance documentation.
