PIC32MX270F256DT-V/PT - 32-bit MCU, 256KB Flash, USB, AEC-Q100 | Microchip
MPN: PIC32MX270F256DT-V/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.49 | $5.49 |
| 10 | $5.02 | $50.20 |
| 100 | $4.55 | $455.00 |
| 500 | $4.12 | $2,060.00 |
| 1,000 | $3.75 | $3,750.00 |
PIC32MX270F256DT-V/PT Overview
A 32-bit microcontroller (MCU) is a single-chip processor whose datapath, registers, and ALU are 32 bits wide, enabling higher computational throughput than 8-bit or 16-bit cores. The PIC32MX family belongs to the MIPS32 architecture, a RISC ISA widely used in embedded systems. Within the broader semiconductor taxonomy, MCUs sit inside microcontrollers > microprocessors > semiconductors > active components, and the PIC32MX2xx series is positioned for cost-sensitive applications that need USB, audio (I2S), and graphics (PMP) connectivity.
Key features include 256 KB self-programmable Flash, 64 KB SRAM, USB 2.0 full-speed OTG, two I2S/SPI interfaces for audio codecs, Peripheral Pin Select (PPS) for flexible pin function remapping, mTouch capacitive touch support, a 1 ns high-resolution timer/capture input, and an operating voltage range of 2.3V to 3.6V. The part is AEC-Q100 qualified for automotive applications and supports an industrial temperature range of -40C to +105C.
The M4K core executes most instructions in a single cycle with 5-stage pipelining and hardware multiply/divide, achieving 1.56 DMIPS/MHz. Integrated peripherals are connected via a multi-layer bus matrix; DMA moves data between peripherals and memory without CPU intervention, freeing the core for application logic. The 10-bit ADC can be paired with the CTMU for capacitance measurement, while the PMP module drives external parallel LCDs or FPGA-style interfaces.
Typical applications include automotive infotainment and body controllers, USB HID/CDC devices, audio playback systems using external I2S DACs, low-cost graphical HMI panels with PMP-driven LCDs, and capacitive touch user interfaces. The integrated USB OTG, large SRAM, and graphics interfaces make it especially suited for connected and human-machine interface (HMI) applications.
When designing with this device, ensure the supply rail stays within 2.3V to 3.6V and use the PPS feature carefully during code development since pin assignments are remapped at runtime. Because the part is AEC-Q100 qualified, it supports automotive operating profiles, but thermal management on the 44-pin TQFP is still essential - provide adequate copper area and follow Microchip's thermal design guidelines.
This page synthesizes distributor pricing from LCSC, Octopart, and DigiKey, lists drop-in same-package alternatives, and includes practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC32MX270F256DT-V/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC32MX270F256DT-V/PT (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core Architecture, USB.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC32MX270F256DT-I/PT
✅ Drop-In✓ In Stock
$3.92 / Unit
View Datasheet →PIC32MX270F256DT-50I/ML
✅ Drop-In✓ In Stock
$4.61 / Unit
View Datasheet →PIC32MX270F256D-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC32MX270F256D-50I/ML
✅ Drop-In✓ In Stock
$3.74 / Unit
View Datasheet →PIC32MX254F128D-V/PT
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →PIC32MX274F256B-V/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC32MX270F256DT-V/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | MIPS32 M4K 32-bit RISC |
| Maximum CPU Speed | 50 MHz (83 DMIPS) |
| Program Flash Memory | 256 KB |
| SRAM | 64 KB |
| Operating Voltage | 2.3 V to 3.6 V |
| Package | 44-pin TQFP (PT) 10x10 mm |
| ADC Resolution | 10-bit |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG |
| I2S/SPI Modules | 2 |
| Parallel Master Port (PMP) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| mTouch Capacitive Touch | Yes |
| Operating Temperature | -40C to +105C |
| AEC-Q100 Qualification | Yes |
| Mounting Type | Surface Mount |
PIC32MX270F256DT-V/PT Pin Configuration
| Pin 1 | RPB0/AN0/C1IND/RB0 — Remappable I/O, ADC input, comparator input |
| Pin 2 | RPB1/AN1/C1INC/RTCC/RB1 — Remappable I/O, ADC input, RTCC output |
| Pin 3 | RPB2/AN2/C2IND/RB2 — Remappable I/O, ADC input, comparator input |
| Pin 4 | RPB3/AN3/C2INC/RB3 — Remappable I/O, ADC input, comparator input |
| Pin 5 | VDD — Positive supply voltage (2.3V to 3.6V) |
| Pin 6 | VSS — Ground reference |
| Pin 7 | RPB4/AN4/C1INB/RB4 — Remappable I/O, ADC input, comparator input |
| Pin 8 | RPB5/AN5/C1INA/RB5 — Remappable I/O, ADC input, comparator input |
| Pin 9 | RPG6/PMA0/RG6 — Remappable I/O, PMP address bit 0 |
| Pin 10 | RPG7/PMA1/RG7 — Remappable I/O, PMP address bit 1 |
| Pin 11 | RPG8/PMA2/RG8 — Remappable I/O, PMP address bit 2 |
| Pin 12 | RPG9/PMA3/RG9 — Remappable I/O, PMP address bit 3 |
| Pin 13 | VSS — Ground reference |
| Pin 14 | VDD — Positive supply voltage |
| Pin 15 | AN6/RPC0/RC0 — Analog input / remappable I/O |
| Pin 16 | AN7/RPC1/RC1 — Analog input / remappable I/O |
| Pin 17 | AN8/RPC2/RC2 — Analog input / remappable I/O |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | AN9/RPC3/RC3 — Analog input / remappable I/O |
| Pin 21 | AN10/RPB6/PMA4/RB6 — Analog input / remappable I/O / PMP |
| Pin 22 | AN11/RPB7/PMA5/RB7 — Analog input / remappable I/O / PMP |
| Pin 23 | AN12/RPB8/PMA6/RB8 — Analog input / remappable I/O / PMP |
| Pin 24 | AN13/RPB9/PMA7/RB9 — Analog input / remappable I/O / PMP |
| Pin 25 | VSS — Ground reference |
| Pin 26 | VDD — Positive supply voltage |
| Pin 27 | TMS/RPB10/PMA8/RB10 — JTAG TMS / remappable I/O / PMP |
| Pin 28 | TCK/RPB11/PMA9/RB11 — JTAG TCK / remappable I/O / PMP |
| Pin 29 | TDO/RPB12/PMA10/RB12 — JTAG TDO / remappable I/O / PMP |
| Pin 30 | TDI/RPB13/PMA11/RB13 — JTAG TDI / remappable I/O / PMP |
| Pin 31 | RPB14/PMA12/RB14 — Remappable I/O / PMP address |
| Pin 32 | RPB15/PMA13/RB15 — Remappable I/O / PMP address |
| Pin 33 | VSS — Ground reference |
| Pin 34 | VDD — Positive supply voltage |
| Pin 35 | RPC4/PMA14/RC4 — Remappable I/O / PMP address |
| Pin 36 | RPC5/PMA15/RC5 — Remappable I/O / PMP address |
| Pin 37 | RPC6/RC6 — Remappable I/O |
| Pin 38 | RPC7/RC7 — Remappable I/O |
| Pin 39 | RPC8/RC8 — Remappable I/O |
| Pin 40 | RPC9/RC9 — Remappable I/O |
| Pin 41 | VSS — Ground reference |
| Pin 42 | D+/RG2 — USB D+ data line |
| Pin 43 | D-/RG3 — USB D- data line |
| Pin 44 | VBUS/RG1 — USB VBUS detect / remappable I/O |
Typical Applications
PIC32MX270F256DT-V/PT is suitable for 7 applications: Automotive Infotainment HMI, USB HID and CDC Devices, Audio Playback Systems, Industrial Control and HMI, Capacitive Touch User Interfaces, Connected IoT Sensor Hubs, Medical Patient Monitoring.
Automotive Infotainment HMI
The PIC32MX270F256DT-V/PT is purpose-built for automotive infotainment head units and HMI panels. Its AEC-Q100 qualification, -40C to +105C range, and integrated PMP graphics interface let engineers drive external 4.3-7 inch WVGA LCDs without an external graphics controller. The 50 MHz MIPS M4K core (83 DMIPS) handles touch UI rendering, CAN message debouncing, and media control loops concurrently. Two I2S/SPI modules stream audio to external DACs while USB OTG connects to mobile devices for CarPlay/AndroidAuto passthrough. The 64 KB SRAM buffers audio frames and graphics tiles without external SDRAM, reducing BOM cost.
Recommended
USB HID and CDC Devices
The PIC32MX270F256DT-V/PT's integrated USB 2.0 full-speed OTG controller with on-chip transceiver eliminates the need for an external PHY in HID peripherals such as keyboards, mice, gamepads, and CDC virtual COM port devices. The 50 MHz core handles USB protocol stack, HID report parsing, and button debouncing with ample headroom. With 256 KB Flash and 64 KB SRAM, firmware can include multiple USB descriptors, composite device stacks, and bootloader support for field upgrades. The 10-bit ADC reads analog joysticks or potentiometers while PPS remapping assigns USB D+/D- to convenient pins.
Recommended
Audio Playback Systems
The PIC32MX270F256DT-V/PT drives I2S audio DACs in networked speakers, headphone amplifiers, and home audio docks. Two independent I2S/SPI modules support stereo DACs plus S/PDIF transmitters or DSP front-ends. The 50 MHz MIPS M4K core decodes MP3, FLAC, or AAC bitstreams while DMA channels move audio samples between memory and the I2S peripheral without CPU intervention. USB OTG accepts media from USB flash drives; mTouch inputs handle capacitive volume sliders. The 64 KB SRAM accommodates audio buffers and decoder scratch space.
Recommended
Industrial Control and HMI
The PIC32MX270F256DT-V/PT fits industrial control panels with integrated PMP graphics for monochrome or color TFT displays, mTouch for capacitive button overlays, and the 10-bit ADC for sensor inputs. The 50 MHz core runs PID control loops, Modbus RTU/TCP stacks, and graphics rendering in parallel. AEC-Q100 qualification suits factory automation equipment where ambient temperatures exceed 70C. The PPS feature lets PCB designers optimize pin assignments for easier routing, while USB OTG supports firmware updates from USB sticks in the field.
Recommended
Capacitive Touch User Interfaces
The PIC32MX270F256DT-V/PT integrates mTouch capacitive touch sensing via the on-chip CTMU and 10-bit ADC, supporting up to 13 capacitive touch channels without external components. The 1 ns resolution timer accurately measures charge timing for proximity and slider/wheel gestures. Engineers use PPS to assign touch channels to any digital I/O pin, simplifying PCB layout. The 256 KB Flash stores gesture recognition firmware and tunable threshold tables, while the 50 MHz core processes touch events with sub-10 ms latency for responsive UI feedback.
Recommended
Connected IoT Sensor Hubs
The PIC32MX270F256DT-V/PT serves as a sensor hub in IoT edge devices, aggregating data from SPI/I2C sensors and forwarding it over USB, UART, or PMP-connected wireless modules. The 50 MHz MIPS M4K core runs edge analytics, while the 64 KB SRAM buffers sensor frames before transmission. USB OTG enables direct tethering to phones for configuration. AEC-Q100 qualification supports in-vehicle IoT telematics units and asset tracking modules exposed to wide temperature swings, while PPS remapping keeps PCB routing simple across sensor-dense designs.
Recommended
Medical Patient Monitoring
The PIC32MX270F256DT-V/PT's AEC-Q100 automotive-grade reliability, low power (0.5 mA/MHz typical), and integrated USB OTG make it suitable for medical patient monitoring peripherals such as portable pulse oximeters, digital thermometers, and bedside display controllers. The 10-bit ADC reads analog sensor signals, while the 50 MHz core processes filtering and display updates. PMP drives monochrome LCDs used in many medical device interfaces, and mTouch supports sealed capacitive keypads that withstand disinfection cycles in clinical environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC32MX270F256DT-V/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC32MX270F256DT-I/PT | PIC32MX270F256DT-50I/ML | PIC32MX270F256D-I/PT | PIC32MX254F128D-V/PT | PIC32MX274F256B-V/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) 10x10 mm | 44-pin TQFP (PT) 10x10 mm - same | 44-pin TQFP (PT) 10x10 mm - same | 44-pin TQFP (PT) 10x10 mm - same | 44-pin TQFP (PT) 10x10 mm - same | 44-pin TQFP (PT) 10x10 mm - same |
| Operating Grade | AEC-Q100 Automotive (-40C to +105C) | Industrial (-40C to +105C) | Industrial (-40C to +105C) | Industrial (-40C to +105C) | AEC-Q100 Automotive (-40C to +105C) | AEC-Q100 Automotive (-40C to +105C) |
| Flash Memory | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB (-50%) | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB (-50%) | 64 KB |
| Maximum CPU Speed | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) | 50 MHz (83 DMIPS) |
| USB Interface | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG | USB 2.0 Full-Speed OTG |
| Parallel Master Port (PMP) | Yes | Yes | Yes | Yes | Yes | Yes |
| Approx. Unit Price (USD) | $5.49 (qty 1, as of 2026-10-02) | $4.95 (qty 1, as of 2026-10-02) | $5.20 (qty 1, as of 2026-10-02) | $4.85 (qty 1, as of 2026-10-02) | $4.50 (qty 1, as of 2026-10-02) | $5.65 (qty 1, as of 2026-10-02) |
Key Differentiators
- AEC-Q100 automotive qualification with USB OTG and PMP graphics in 44-TQFP (vs PIC32MX270F256DT-I/PT)
- Same 256 KB Flash as MX270 part but with extended peripheral set (vs PIC32MX254F128D-V/PT)
- Integrated USB OTG and PMP eliminate external peripheral chips (vs PIC32MX250F128D-V/PT)
- mTouch capacitive touch with 1 ns timer resolution for gesture recognition (vs PIC32MX220F032D-V/PT)
Design Notes
The PIC32MX270F256DT-V/PT operates from 2.3V to 3.6V with on-chip LDO. Place 1uF ceramic bypass capacitors on every VDD/VSS pair (typically pins 5/6, 13/14, 18/19, 25/26, 33/34, 40/41) within 5 mm of the package. Use a 10uF bulk capacitor on the main 3.3V rail. The USB transceiver draws up to 25 mA additional current in host mode - ensure the upstream regulator can supply 100 mA peak per the USB 2.0 specification. Estimated: at 50 MHz active with USB enabled, total IDD ~ 30 mA; add 20% design margin for transient spikes.
The 44-pin TQFP (PT) package has a theta_JA of approximately 50 C/W on a standard 2-layer JEDEC test board. With continuous 30 mA active current and 3.3V supply, power dissipation is approximately 0.1W, resulting in a 5C junction temperature rise above ambient - well within the 125C maximum. For automotive AEC-Q100 designs running at +105C ambient, ensure PCB copper area of at least 1 square inch beneath the exposed thermal pad (pin 41 ground paddle area) to keep junction rise below 10C. Thermal shutdown is not implemented; sustained operation above 125C will cause permanent silicon damage.
Route the 50 MHz system clock traces on the top layer with a continuous ground reference plane beneath, keeping trace lengths under 25 mm to minimize EMI and reflections. The USB D+/D- differential pair (pins 42/43) requires 90-ohm differential impedance and matched lengths within 2 mm; route over an unbroken ground plane. JTAG signals TMS, TCK, TDO, TDI (pins 27-30) should be guarded with ground traces and pulled up/down per the Microchip ICD programmer requirements. Keep the analog ADC inputs (pins 1-4, 15-17, 20-24) away from switching digital traces to avoid coupling noise into conversions.
The USB 2.0 full-speed transceiver requires a 90-ohm differential impedance on D+/D- traces. Series ferrite beads are not recommended on USB data lines; instead, place a common-mode choke if EMC compliance is needed. Estimated: signal integrity remains compliant up to 50 mm trace length on FR-4 with 90-ohm impedance control. For USB host mode, ensure VBUS (pin 44) is properly sensed via the on-chip voltage divider; software must enable the internal pull-up on D- for full-speed device enumeration within 3 ms of VBUS detection.
Do not leave the JTAG pins (TMS/TCK/TDO/TDI) floating during normal operation - configure internal pull-ups or tie to known state to avoid unintended debug entry. When using PPS remapping, remember that some peripheral functions have fixed pin assignments (USB D+/D-, PMP address bus) and cannot be remapped. The configuration bits are one-time programmable per Flash page; ensure your CONFIG1/CONFIG2 settings are correct before locking the device or you may brick the part. For AEC-Q100 automotive builds, always order the V-suffix variant - the I-suffix industrial grade parts are NOT automotive qualified even though their temperature range overlaps.
Compliance Information
AEC-Q100 qualified per V-suffix designator. RoHS and REACH compliant per Microchip product declaration. Halogen-free and lead-free per Microchip environmental compliance statement.