PIC32MX274F256DT-V/PT - 72MHz 32-bit MCU, 256KB Flash, USB | Microchip
부품 번호: PIC32MX274F256DT-V/PT ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.32 | $2.32 |
| 10 | $2.16 | $21.60 |
| 100 | $1.95 | $195.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC32MX274F256DT-V/PT 개요
A 32-bit microcontroller is a programmable processor built around a 32-bit datapath and register file, enabling efficient handling of larger data words, complex math, and richer peripheral sets than 8- or 16-bit MCUs. The PIC32MX family extends the PIC legacy into the MIPS M4K architecture, combining Microchip's MPLAB ecosystem with deterministic interrupts and a rich peripheral mix. Within the system hierarchy, the PIC32MX274F256D sits in the MCU -> 32-bit MCU -> connected MCU category, targeted at USB-enabled consumer, industrial, and automotive body applications.
Key features of this part include USB 2.0 Full-Speed with on-chip transceiver, 10-bit ADC up to 1.1 Msps, up to 5 UART/SPI/I2C peripherals, and the eXtreme Low Power (XLP) sleep modes that drop quiescent current into the microamp range. The 256 KB Flash holds up to 268 KB including a 12 KB boot Flash, while 64 KB SRAM supports buffering for USB, graphics, and audio workloads. With 34 usable I/O and CTMU touch support, designers can build capacitive touch user interfaces without an external touch controller.
Architecturally, the PIC32MX274F256DT-V/PT pairs the M4K core with a 5-stage pipeline, hardware multiply/divide, and a dedicated peripheral bus running from the same 72 MHz system clock. The CTMU provides a constant current source for capacitive sensing and precise time-of-flight measurement, while the RTCC keeps accurate wall-clock time in deep sleep.
Typical applications include USB HID / CDC / MSD devices, capacitive touch keypads, automotive body controllers (V variant), low-cost audio playback, and graphics-driven HMI panels. The wide operating voltage (2.3V-3.6V) and industrial temperature range make it equally suited to battery-powered IoT sensors and factory automation nodes.
When designing with this part, ensure that VDDCORE decoupling and the 8 MHz internal oscillator configuration match your MPLAB Harmony project settings. The V (automotive) suffix indicates AEC-Q100 qualification, so validate EMI/ESD margins against ISO 7637 or IEC 61000-4-2 if targeting 12V automotive rails.
This page combines distributor pricing, qualified drop-in alternatives, and practical design notes not found on a single manufacturer page.
드롭인 대체품: PIC32MX274F256DT-V/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC32MX274F256DT-V/PT (동일 폼 팩터 및 풋프린트) — 차이점: ADC, Core Architecture, Package, Operating Temperature, Program Memory (Flash).
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC32MX274F256DT-I/PT
✅ 드롭인✓ 재고 있음
$3.29 / 개
데이터시트 보기 →PIC32MX270F256DT-V/PT
✅ 드롭인✓ 재고 있음
$3.75 / 개
데이터시트 보기 →PIC32MX270F256DT-I/PT
✅ 드롭인✓ 재고 있음
$3.92 / 개
데이터시트 보기 →PIC32MX274F256D-V/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC32MX254F128DT-V/PT
✅ 드롭인✓ 재고 있음
$2.96 / 개
데이터시트 보기 →PIC32MX274F256DT-V/PT 최대 정격 & 전기적 특성
| Core Architecture | MIPS32 M4K 32-bit |
| Maximum CPU Frequency | 72 MHz |
| Program Flash Memory | 256 KB (256K x 8) plus 12 KB boot Flash |
| SRAM | 64 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| I/O Pins | 34 |
| USB | USB 2.0 Full-Speed (12 Mbps) with on-chip transceiver |
| ADC | 10-bit, up to 1.1 Msps |
| Analog Comparators | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock Calendar) |
| Communication Peripherals | UART, SPI, I2C |
| 동작 온도 범위 | -40C to +105C (V automotive grade) |
| 패키지 | 44-pin TQFP (PT) 10x10 mm |
| AEC-Q100 | Qualified (V suffix) |
| 실장 유형 | Surface Mount |
| Lead-Free / RoHS | Yes / Compliant |
PIC32MX274F256DT-V/PT 44-pin tqfp (pt) 10x10 mm 핀 구성 가이드
PIC32MX274F256DT-V/PT(44-pin tqfp (pt) 10x10 mm 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: PIC32MX274F256DT-V/PT.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
PIC32MX274F256DT-V/PT 적합 용도: 7 애플리케이션s: USB HID / CDC / MSD Device, Automotive Body Control Module, Capacitive Touch Keypad, Low-Cost Audio Playback Device, Industrial Sensor Node, Graphics HMI Panel, USB Charging Port Controller.
USB HID / CDC / MSD Device
The PIC32MX274F256DT-V/PT integrates a Full-Speed USB 2.0 device controller with on-chip transceiver, eliminating the need for an external USB PHY. With 256 KB Flash and 64 KB SRAM it comfortably hosts composite USB stacks (HID + CDC + MSD), while the 72 MHz M4K core handles enumeration, interrupt handling, and protocol processing without CPU bottlenecks. The automotive -40C to +105C grade makes it suitable for ruggedized USB peripherals and in-cabin infotainment accessories.
추천
Automotive Body Control Module
The V suffix AEC-Q100 qualification plus -40C to +105C operation makes the PIC32MX274F256DT-V/PT a strong fit for body controllers managing door locks, lighting, wipers, and HVAC actuators. The 3 analog comparators and CTMU support direct sensor signal conditioning, while the RTCC keeps wall-clock time during deep-sleep parking modes. With 34 I/O pins it can drive multiple LIN/CAN-style actuator channels and switch inputs without an I/O expander.
추천
Capacitive Touch Keypad
The on-chip CTMU (Charge Time Measurement Unit) delivers constant-current charge timing for capacitive touch electrodes, allowing the PIC32MX274F256DT-V/PT to scan 10-20 touch keys without an external touch controller. The 64 KB SRAM buffers scan results, while the 72 MHz core runs touch firmware and USB HID reporting concurrently. AEC-Q100 qualification supports automotive center-stack touch panels and steering-wheel switches.
추천
Low-Cost Audio Playback Device
The PIC32MX274F256DT-V/PT's audio I/O library and 72 MHz processing support compressed audio decode (WAV, ADPCM, simple MP3) with sample-rate mixing and PWM or external DAC output. The 256 KB Flash stores 30-60 seconds of 16 kHz ADPCM audio, while 64 KB SRAM buffers streaming samples for click-free playback. Automotive temperature grade fits car-audio accessories such as reverse-warning chimes and door-chime modules.
추천
Industrial Sensor Node
With XLP low-power sleep modes drawing microamp-level current and an RTCC that maintains time during deep sleep, the PIC32MX274F256DT-V/PT is suited to battery-powered industrial sensor nodes (vibration, temperature, pressure). The 10-bit ADC samples analog sensors at up to 1.1 Msps, while the CTMU enables precise time-of-flight and capacitance measurements. The wide 2.3V-3.6V supply range works with 3.3V LDO rails and single-cell Li-ion chemistries.
추천
Graphics HMI Panel
The PIC32MX274F256DT-V/PT supports Microchip's graphics libraries (MLA / Harmony) for driving small TFT or OLED panels over SPI or parallel 8-bit interfaces at modest frame rates. 64 KB SRAM holds a small framebuffer, and the 72 MHz core has enough headroom to render buttons, gauges, and animated icons. The automotive V grade suits industrial machinery HMI and in-cabin cluster accessories operating up to +105C.
추천
USB Charging Port Controller
USB Battery Charging Specification (BC1.2) detection and port control logic fits naturally in the PIC32MX274F256DT-V/PT's USB-capable architecture. With 34 I/O the MCU monitors VBUS, controls load switches, and reports status via USB or LIN. The AEC-Q100 V grade supports in-vehicle USB charger modules that must operate from -40C cold-crank to +105C engine-bay-adjacent environments.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC32MX274F256DT-V/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC32MX274F256DT-I/PT | PIC32MX270F256DT-V/PT | PIC32MX270F256DT-I/PT | PIC32MX274F256D-V/PT | PIC32MX254F128DT-V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Maximum CPU Frequency | 72 MHz | 72 MHz | 40 MHz at 44-pin | 40 MHz at 44-pin | 72 MHz | 72 MHz |
| Program Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) |
| Temperature Grade / AEC-Q100 | Automotive -40C to +105C (V), AEC-Q100 | Industrial -40C to +85C (I), not AEC-Q100 | Automotive -40C to +105C (V), AEC-Q100 | Industrial -40C to +85C (I), not AEC-Q100 | Automotive -40C to +105C (V), AEC-Q100 | Automotive -40C to +105C (V), AEC-Q100 |
| USB 2.0 Full-Speed | Yes (on-chip transceiver) | Yes | Yes | Yes | Yes | Yes |
| CTMU / Capacitive Touch | Yes | Yes | Yes | Yes | Yes | Yes |
주요 차별점
- Automotive AEC-Q100 qualification with -40C to +105C operation (vs PIC32MX274F256DT-I/PT)
- Highest 72 MHz CPU performance in the PIC32MX2xx family (vs PIC32MX270F256DT-V/PT)
- Doubled memory vs PIC32MX254 with same pinout (vs PIC32MX254F128DT-V/PT)
설계 노트
Estimated: At 72 MHz CPU and full peripheral activity (USB + ADC + UART), the PIC32MX274F256DT-V/PT core current is approximately 50-70 mA from VDDCORE (1.8V-2.5V typical). Add 10-15 mA for USB Full-Speed transceiver activity on VDDIO. For USB bus-powered designs, place a 10 uF + 0.1 uF ceramic bulk on VDDIO and a 4.7 uF + 0.1 uF on VDDCORE within 5 mm of the pins, with a ferrite bead separating the two rails to suppress USB-edge coupling.
Estimated: At continuous 72 MHz with USB active, total device power dissipation is roughly 150-200 mW. The 44-pin TQFP (PT) package has a theta_JA of approximately 50-60 C/W on a 4-layer JEDEC test board, producing a 10-12 C junction rise above ambient. For automotive designs targeting +105C ambient, derate the peripheral clock or enable XLP sleep modes to keep Tj below the +125C max. A small copper pour (>=1 square inch) under the exposed pad is recommended.
The 44-pin TQFP package requires a 10x10 mm land pattern with 0.8 mm pitch. Route the differential USB DP/DN pair as a 90-ohm impedance-matched pair, length-matched to within 2 mm, and keep them away from switching rails. Place the 12 MHz or 48 MHz external crystal within 5 mm of the OSCI/OSCO pins with short, symmetric traces and a guard ground pour. Ensure that the VDDCORE core supply decoupling is the closest capacitor to the pin.
Common pitfalls: (1) Forgetting to configure the POSC_SEL bits for the chosen external oscillator load capacitors - this causes USB jitter and enumeration failures. (2) Enabling the on-chip USB pull-up resistor while also using an external 1.5k pull-up on D+ - doubles the pull-up strength and prevents host enumeration. (3) Using the boot Flash region for application code without configuring the BOOTSWAP or IVSEL bits - the device boots into the empty boot Flash and appears blank. Always validate your HEX file against the device ID in MPLAB IPE before mass production.
규정 준수 정보
V suffix indicates AEC-Q100 automotive qualification per Microchip product page. Lead-free and RoHS/REACH compliant per Microchip material declaration.