PIC32MX270F256B-I/ML Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
Microchip PIC32MX270F256B-I/ML is a 32-bit PIC32 microcontroller with 256 KB Flash, 64 KB RAM, and a 50 MHz MIPS32 core. It features boundary scan, 3 KB boot Flash, 10-bit ADC, and is housed in a compact VQFN-28 package for space-constrained embedded applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- PIC32MX270F256B-I/ML Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2400(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 32-bit MIPS32 core clocked up to 50 MHz for demanding embedded processing tasks
- 256 KB Flash program memory plus 3 KB dedicated boot Flash for bootloader storage
- 64 KB SRAM and DMA channels for efficient data-intensive peripheral operations
- Boundary scan (JTAG) support for in-circuit testing and production debug
- Compact VQFN-28 package ideal for size-constrained PCB designs
Applications
The PIC32MX270F256B-I/ML is well suited for audio processing, human-machine interface (HMI) panels, and industrial sensor gateways that require 32-bit performance in a small package. Its JTAG boundary scan and 256 KB Flash support secure bootloader architectures and firmware update systems in connected embedded products.
Specifications
| Manufacturer Package Code | VQFN-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 13 |
| Has ADC | YES |
| Additional Feature | THIS DEVICE FEATURES 3KBYTE OF BOOT FLASH MEMORY |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | PIC32 |
| Clock Frequency-Max | 50MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 6 |
| Number of External Interrupts | 5 |
| Number of I/O Lines | 19 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| RAM (bytes) | 65536 |
| RAM (words) | 65536 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Screening Level | TS 16949 |
| Speed | 40MHz |
| Supply Current-Max | 37mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC32MX270F256B-I/ML:
RISC Microcontroller, 32-Bit, FLASH, PIC32 CPU, 40MHz, CMOS, PQCC28
Frequently Asked Questions
How does the PIC32MX270F256B-I/ML's 50 MHz MIPS32 core compare to 8-bit PIC alternatives for signal processing tasks?
The PIC32MX270F256B-I/ML executes 32-bit operations natively at 50 MHz, delivering roughly 50 DMIPS of throughput. An equivalent 8-bit PIC operating at 32 MHz performs multi-byte operations in multiple instructions, making the 32-bit PIC32 significantly faster for FFT, FIR filtering, or floating-point audio sample processing without external DSP hardware.
What memory configuration does PIC32MX270F256B-I/ML provide, and how is the 3 KB boot Flash used?
The PIC32MX270F256B-I/ML includes 256 KB of main Flash, 64 KB of SRAM, and a separate 3 KB boot Flash region. The boot Flash typically stores the reset vector and a small bootloader, allowing the application Flash to be reprogrammed in the field over UART or USB without specialized programming hardware.
Does PIC32MX270F256B-I/ML support JTAG boundary scan, and how does that simplify production testing?
Yes, the PIC32MX270F256B-I/ML includes JTAG boundary scan compliant with IEEE 1149.1. This allows automatic in-circuit testing of solder connections on all 28 pins during board-level production test, reducing fault escape rates for high-volume manufacturing and enabling faster debug of PCB assembly defects without probing individual pads.
Is PIC32MX270F256B-I/ML a good long-term supply choice, and what is the expected product lifecycle?
Yes, Microchip lists the PIC32MX270F256B-I/ML with a YTEOL of 13 years and a factory lead time of approximately 6 weeks, indicating strong supply continuity. For industrial or medical designs with 10-year production runs, the 13-year EOL estimate provides a comfortable buffer before a last-time-buy scenario becomes necessary.
How does the VQFN-28 package on PIC32MX270F256B-I/ML affect thermal management in power-constrained applications?
The VQFN-28 package features an exposed thermal pad on its underside that must be soldered to a ground plane copper pour with at least 4 thermal vias. This path reduces the junction-to-board thermal resistance to well under 30°C/W, allowing the 32-bit core to run continuously at 50 MHz without throttling even in enclosures with limited airflow.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2400 | $1.24 |
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