PIC32MX254F128D-V/PT - 32-bit MCU 128KB Flash USB | Microchip
部品番号: PIC32MX254F128D-V/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 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 概要
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.
ドロップイン代替品: PIC32MX254F128D-V/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC32MX254F128D-V/PT （同一形状・フットプリント） — 相違点: Package, Core Architecture, Maximum CPU Speed, Operating Temperature, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
PIC32MX254F128D-I/PT
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →PIC32MX254F128DT-I/ML
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.62 / 個
データシートを見る →PIC32MX250F128D-V/PT
✅ ドロップイン✓ 在庫あり
$4.35 / 個
データシートを見る →PIC32MX174F256D-I/PT
✅ ドロップイン✓ 在庫あり
$3.21 / 個
データシートを見る →PIC32MX230F128H-I/PT
✅ ドロップイン✓ 在庫あり
$2.78 / 個
データシートを見る →PIC32MX254F128D-V/PT 最大定格＆電気的特性
| Core Architecture | MIPS32 M4K |
| CPU Width | 32-bit |
| Maximum CPU Clock | 72 MHz |
| Program Flash | 128 KB (128K x 8) |
| SRAM | 32 KB |
| 電源電圧 | 2.3 V to 3.6 V |
| 動作温度 | -40 C to +105 C (automotive -V grade) |
| パッケージ | 44-pin TQFP (10x10x1 mm) |
| 実装タイプ | 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) |
| MSLレベル | 3 (168 hours) |
| RoHS ステータス | Compliant |
PIC32MX254F128D-V/PT ピン構成
| ピン 1 | RPB0/AN0/C1INA/CTED1/RB0 — GPIO RB0 / analog input AN0 / comparator 1 input A |
| ピン 2 | RPB1/AN1/C1INB/CTED2/RB1 — GPIO RB1 / analog input AN1 / comparator 1 input B |
| ピン 3 | RPB2/AN2/C1IND/C2INB/RB2 — GPIO RB2 / analog input AN2 / comparator inputs |
| ピン 4 | RPB3/AN3/C1INC/C2INA/RB3 — GPIO RB3 / analog input AN3 / comparator inputs |
| ピン 5 | VDD — Positive supply voltage (3.3V typical) |
| ピン 6 | VSS — Ground reference |
| ピン 7 | RPB4/AN4/C1INB/C2IND/RB4 — GPIO RB4 / analog input AN4 |
| ピン 8 | SDA1/RPB5/PMD5/RB5 — I2C1 SDA / GPIO RB5 / PMP data 5 |
| ピン 9 | SCL1/RPB6/PMD6/RB6 — I2C1 SCL / GPIO RB6 / PMP data 6 |
| ピン 10 | RPB7/PMD7/RB7 — GPIO RB7 / PMP data 7 |
| ピン 11 | VSS — Ground reference |
| ピン 12 | VDD — Positive supply voltage (3.3V typical) |
| ピン 13 | SOSCI/RPC0/RC0 — Secondary oscillator input / GPIO RC0 |
| ピン 14 | SOSCO/RPC1/RC1 — Secondary oscillator output / GPIO RC1 |
| ピン 15 | RPB8/AN8/RB8 — GPIO RB8 / analog input AN8 |
| ピン 16 | RPB9/AN9/RB9 — GPIO RB9 / analog input AN9 |
| ピン 17 | TMS/RPB10/AN10/RB10 — JTAG TMS / GPIO RB10 / AN10 |
| ピン 18 | TCK/RPB11/AN11/RB11 — JTAG TCK / GPIO RB11 / AN11 |
| ピン 19 | TDI/RPB12/AN12/RB12 — JTAG TDI / GPIO RB12 / AN12 |
| ピン 20 | TDO/RPB13/AN13/RB13 — JTAG TDO / GPIO RB13 / AN13 |
| ピン 21 | RPB14/CVREF/AN14/PMCS1/RB14 — GPIO RB14 / comparator Vref output / AN14 |
| ピン 22 | RPB15/AN15/PMCS2/RB15 — GPIO RB15 / AN15 |
| ピン 23 | VSS — Ground reference |
| ピン 24 | VDD — Positive supply voltage (3.3V typical) |
| ピン 25 | D-/RG3 — USB D- (Full-Speed USB data line) |
| ピン 26 | D+/RG2 — USB D+ (Full-Speed USB data line) |
| ピン 27 | VBUS — USB VBUS sense input |
| ピン 28 | VUSB — USB internal transceiver supply / bypass |
| ピン 29 | RPC6/RPC6 — GPIO RC6 |
| ピン 30 | RPC7/RPC7 — GPIO RC7 |
| ピン 31 | RPC8/RPC8 — GPIO RC8 |
| ピン 32 | RPC9/RPC9 — GPIO RC9 |
| ピン 33 | VDD — Positive supply voltage (3.3V typical) |
| ピン 34 | RPG6/RG6 — GPIO RG6 |
| ピン 35 | RPG7/RG7 — GPIO RG7 |
| ピン 36 | RPG8/RG8 — GPIO RG8 |
| ピン 37 | RPG9/RG9 — GPIO RG9 |
| ピン 38 | OA1OUT/AN0/CVD — Op-amp 1 output / analog input |
| ピン 39 | OA1IN-/AN1 — Op-amp 1 inverting input |
| ピン 40 | OA1IN+/AN2 — Op-amp 1 non-inverting input |
| ピン 41 | VREF-/CVREF- — ADC negative reference |
| ピン 42 | VREF+/CVREF+ — ADC positive reference |
| ピン 43 | AVDD — Analog supply voltage |
| ピン 44 | AVSS — Analog ground |
主な用途
PIC32MX254F128D-V/PT の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC32MX254F128D-V/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- 72 MHz CPU vs 50 MHz on PIC32MX250 family （vs PIC32MX250F128D-V/PT)
- AEC-Q100 automotive qualification with -40 to +125 C range （vs PIC32MX254F128D-I/PT)
- Integrated Full-Speed USB 2.0 （vs PIC32MX230F128H-I/PT)
- Larger 128KB Flash than PIC32MX1xx (256KB option in 174 family uses more area) （vs PIC32MX174F256D-I/PT)
設計ノート
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.
コンプライアンス情報
AEC-Q100 qualified per the -V suffix. RoHS and lead-free compliant per Microchip product environmental compliance documentation.
