PIC32MX274F256DT-V/PT - 72MHz 32-bit MCU, 256KB Flash, USB | Microchip
Teilenummer: PIC32MX274F256DT-V/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 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 Übersicht
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.
Drop-in-Alternativen für PIC32MX274F256DT-V/PT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC32MX274F256DT-V/PT (gleiche Bauform und Footprint) – abweichend in ADC, Core Architecture, Package, Operating Temperature, Program Memory (Flash).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC32MX274F256DT-I/PT
✅ Drop-In✓ Auf Lager
$3.29 / Stück
Datenblatt ansehen →PIC32MX270F256DT-V/PT
✅ Drop-In✓ Auf Lager
$3.75 / Stück
Datenblatt ansehen →PIC32MX270F256DT-I/PT
✅ Drop-In✓ Auf Lager
$3.92 / Stück
Datenblatt ansehen →PIC32MX274F256D-V/PT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC32MX254F128DT-V/PT
✅ Drop-In✓ Auf Lager
$2.96 / Stück
Datenblatt ansehen →PIC32MX274F256DT-V/PT Grenzwerte & elektrische Eigenschaften
| 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 |
| Betriebstemperaturbereich | -40C to +105C (V automotive grade) |
| Gehäuse | 44-pin TQFP (PT) 10x10 mm |
| AEC-Q100 | Qualified (V suffix) |
| Montageart | Surface Mount |
| Lead-Free / RoHS | Yes / Compliant |
PIC32MX274F256DT-V/PT 44-pin tqfp (pt) 10x10 mm Pinbelegungsleitfaden
Pinbelegung für PIC32MX274F256DT-V/PT (44-pin tqfp (pt) 10x10 mm-Gehäuse). Dieser digitale IC umfasst GPIO, Kommunikationsschnittstellen (UART, SPI, I2C) und Versorgungspins. Alternative Pin-Funktionen und Konfigurationsoptionen entnehmen Sie dem Herstellerdatenblatt. Unverzichtbar für Embedded-System-Design und PCB-Layout.
Keine detaillierten Pinbelegungsdaten verfügbar für PIC32MX274F256DT-V/PT.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
PIC32MX274F256DT-V/PT ist geeignet für 7 Anwendungs: 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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC32MX274F256DT-V/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 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 |
Wichtigste Unterscheidungsmerkmale
- 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)
Designhinweise
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.
Compliance-Informationen
V suffix indicates AEC-Q100 automotive qualification per Microchip product page. Lead-free and RoHS/REACH compliant per Microchip material declaration.