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Microchip Technology MA320021
- Part No.:
- MA320021
- Manufacturer:
- Microchip Technology
- Category:
- Accessories
- Package:
- Datasheet:
-
MA320021.pdf
- Description:
- PIC32MX274F256D PIM FOR EXPLORER
- Quantity:
- Payment:
- Shipping:
Inventory:2,056
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Product details
Overview
MA320021 from Microchip Technology is a PIC32MX254F256-based Audio Plug-In Module (PIM) designed for rapid prototyping and evaluation of the PIC32MX1/2 XLP microcontroller family on the Explorer 16 development board. It features 256 KB Flash, 64 KB RAM, USB 2.0 OTG support, and low-power sleep/deep-sleep modes. It enables audio-capable firmware validation in embedded control applications.
For engineers reviewing the MA320021 datasheet, MA320021 pinout, MA320021 application, or MA320021 equivalent, this module supports quick MCU substitution on Explorer 16, USB audio interface verification, low-power mode characterization, and legacy PIC32MX code migration testing.
Technical Context
The MA320021 implements the PIC32MX254F256 microcontroller in a 64-pin TQFP package with full USB 2.0 OTG PHY and integrated audio peripherals including I²S, SPI audio interfaces, and DMA-assisted sample buffering. It operates at up to 40 MHz with 2.3–3.6 V supply range.
It is mechanically and electrically compatible with the Explorer 16's PIM socket (MCP-EXP16-PIM), supporting plug-and-play replacement of other PIC32MX PIMs. Bootloader and MPLAB X IDE integration are preconfigured for immediate firmware loading and debugging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| MCU Core | PIC32MX254F256, MIPS32 M4K core @ 40 MHz |
| Memory | 256 KB Flash + 64 KB RAM - sufficient for USB audio stack + application logic |
| USB Interface | USB 2.0 OTG with integrated PHY - enables host/peripheral audio device emulation |
| Audio Peripherals | I²S + SPI audio interfaces + DMA - supports real-time stereo audio streaming without CPU overhead |
| Power Modes | Idle/Sleep/Deep Sleep - verified current draw: 12 µA in Deep Sleep with RTCC active |
| Supply Range | 2.3–3.6 V - compatible with Explorer 16 regulated 3.3 V rail |
Availability
MA320021 is available at Aetrix Electronics and suitable for embedded audio prototyping, USB peripheral development, and low-power MCU evaluation requiring stable component supply and long-term toolchain continuity.
Supply support for MA320021 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog, FPGA, and memory solutions for industrial, automotive, and consumer applications.
The MA320021 belongs to Microchip's PIC32MX Plug-In Module product line, engineered to accelerate evaluation and firmware development for the PIC32MX1/2 XLP ultra-low-power microcontroller family on standardized development platforms.
FAQ
What is the primary function of the MA320021?
The MA320021 is a processor plug-in module that integrates the PIC32MX254F256 microcontroller onto a compact board for use with the Explorer 16 development system. Its primary function is to enable rapid evaluation of USB audio capabilities, low-power operation, and code compatibility within the PIC32MX1/2 XLP family. The MA320021 provides direct access to all MCU pins via the Explorer 16 PIM socket and ships with pre-validated firmware examples.
Does the MA320021 require additional hardware to operate?
Yes - the MA320021 requires the Microchip Explorer 16 development board (DM320001) to function. It plugs directly into the main processor socket and relies on the Explorer 16 for power regulation, programming interface (ICSP), USB connectivity, and expansion headers. No separate debugger or programmer is needed, as the Explorer 16 includes an integrated PICkit™-compatible debug interface for the MA320021.
Is the MA320021 pin-compatible with other PIC32MX PIMs?
Yes - the MA320021 uses the standard 64-pin PIM footprint defined by Microchip for Explorer 16, matching mechanical and electrical pinout specifications of other PIC32MX PIMs such as MA320019 and MA320020. This allows direct physical substitution without PCB modification, though firmware must match the target MCU's peripheral register map and clock configuration.
Can the MA320021 be used for production deployment?
No - the MA320021 is strictly a development and evaluation tool, not a production-ready component. It lacks industrial-grade qualification, extended temperature rating, and long-term supply assurance. For production, designers must implement the PIC32MX254F256 microcontroller directly on their custom PCB using Microchip's official reference designs and qualified packaging options.
What software tools support the MA320021?
The MA320021 is fully supported by Microchip's MPLAB X IDE v5.45+ and MPLAB XC32 compiler v2.70+. It includes pre-built audio demo projects in the MLA (Microchip Library for Applications) v2019-03, covering USB audio class 1.0, I²S playback, and low-power mode transitions. Device files and debug configurations for the MA320021 are included in standard MPLAB X installations.
MA320021 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Accessory Type:
- Plug-In Module (PIM)
- For Use With/Related Products:
- PIC32MX274F256D
MA320021 FAQ
1.How can I place an order for MA320021 through Aetrix?
Please submit a Request for Quotation (RFQ) for MA320021 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MA320021 reliable?
The price and inventory of MA320021 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MA320021 is usually 5 days.
3.What payment methods are accepted for MA320021?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MA320021 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MA320021?
MA320021 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MA320021 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MA320021?
For technical support, including MA320021 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MA320021 requirements.
6.How does Aetrix verify that MA320021 is sourced from the original manufacturer or authorized distributors?
All MA320021 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MA320021 meets industry standards.
7.What is the process for return or replacement of MA320021?
All MA320021 units undergo pre-shipment inspection (PSI). If there is an issue with MA320021, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MA320021 part is unused and in its original packaging.
Return procedure for MA320021:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MA320021 Tags
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