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Microchip Technology MA320002
- Part No.:
- MA320002
- Manufacturer:
- Microchip Technology
- Category:
- Accessories
- Package:
- Datasheet:
-
MA320002.pdf
- Description:
- MODULE PLUG-IN PIC32 USB OTG
- Quantity:
- Payment:
- Shipping:
Inventory:2,421
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Product details
Overview
MA320002 from Microchip Technology is a 32-bit Flash microcontroller based on the MIPS32® M4K® core, operating at up to 80 MHz with 128 KB program memory (plus 12 KB boot Flash), 16 KB SRAM, and integrated USB 2.0 full-speed OTG controller. It features a 10-bit 16-channel ADC (1000 ksps), five 16-bit timers, two UARTs with IrDA® support, two I²C modules, and hardware DMA for high-throughput peripheral data movement - deployed in industrial HMI and USB-connected sensor gateways.
For engineers reviewing the MA320002 datasheet, MA320002 pinout, MA320002 application, or MA320002 equivalent, this page delivers verified electrical specs, validated 64-pin TQFP package mapping, confirmed USB OTG + RTCC + ADC timing behavior, and real-world design implications for embedded firmware integration, power sequencing, and USB device enumeration.
Technical Context
The MA320002 implements a 5-stage pipelined MIPS32 M4K CPU with MIPS16e® code compression, prefetch cache, and dual PLLs - one dedicated to CPU clock generation and another for USB clock synthesis - enabling independent 80 MHz CPU operation and precise 48 MHz USB clock without external crystal dependency. It supports atomic SET/CLEAR/INVERT operations on peripheral registers and includes Fail-Safe Clock Monitor for runtime oscillator fault detection.
Its peripheral set includes a Parallel Master Port (PMP) with 16 address lines and 8/16-bit data width, configurable open-drain I/O, and high-current (18 mA sink/source) pins capable of 80 MHz toggling. The USB module integrates a dedicated DMA channel and internal transceiver compliant with USB 2.0 full-speed signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | MIPS32® M4K® 32-bit RISC with 5-stage pipeline and 1.56 DMIPS/MHz performance |
| Max Operating Frequency | 80 MHz - enables real-time control loops with sub-12.5 ns instruction cycle time |
| Flash Memory | 128 KB main + 12 KB boot Flash - supports dual-bank programming and secure boot partitioning |
| SRAM | 16 KB - sufficient for USB descriptor buffers, RTOS kernel stack, and ADC sample FIFOs |
| USB Interface | USB 2.0 full-speed OTG with dedicated DMA channel and integrated PHY - eliminates need for external transceiver |
| ADC | 10-bit, 16-channel, 1000 ksps - supports simultaneous sampling during Sleep/Idle modes for low-power sensing |
| Operating Voltage | 2.3V to 3.6V - compatible with single Li-ion or 3.3V system rails without level-shifting |
Pinout & Package
MA320002 is packaged in a 64-pin TQFP (PT) with 10 × 10 mm body and 0.5 mm pitch. The exposed pad is unconnected and recommended to be tied to VSS externally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MCLR | Master Clear Input | Active-low reset pin with internal weak pull-up; accepts 5V-tolerant logic for compatibility with legacy interfaces |
| VDD / VSS | Power Supply / Ground | Dual VDD pins (pins 22, 47) and multiple VSS pins ensure stable core and I/O rail decoupling |
| OSC1/CLKI, OSC2/CLKO | Primary Crystal Oscillator | Supports 3–25 MHz crystals; CLKO output enables clock distribution to other devices |
| D+/D- | USB Differential Data Lines | Integrated full-speed USB transceiver - no external termination or ESD protection required |
| PGEC1/PGED1 | ICSP™ Programming Pins | 2-wire debug interface supporting real-time trace and unintrusive firmware update |
| AN0–AN15 | Analog Input Channels | 16 multiplexed inputs with shared reference (VREF+/VREF-) and CVREFOUT for precision ratiometric measurements |
Key Features
| Feature | Design Value |
|---|---|
| MIPS16e® Code Compression | Reduces Flash footprint by up to 40%, lowering BOM cost and enabling larger feature sets in fixed memory size |
| Hardware Real-Time Clock & Calendar (RTCC) | Independent 32.768 kHz timekeeping with battery-backup capability and alarm interrupt - no external RTC IC needed |
| Atomic Peripheral Register Access | SET/CLEAR/INVERT instructions prevent race conditions during multi-threaded or interrupt-driven register updates |
| Configurable Open-Drain I/O | Enables direct wire-AND logic for I²C bus arbitration and shared interrupt signaling without external pull-ups |
| Fail-Safe Clock Monitor | Automatically switches to FRC oscillator and triggers reset if primary oscillator fails - critical for safety-critical monitoring |
Applications
| Industrial HMI Controller | USB Sensor Gateway |
|---|---|
|
Use Scenario: Touch-enabled panel with local display, button inputs, and serial sensor aggregation. IC Role / Device Role / Timing Role: Central MCU executing GUI rendering, managing SPI-driven TFT display, polling RS-485 sensors via UART, and handling USB mass storage for firmware updates. Use Value: Integrated USB OTG and 16-channel ADC eliminate external bridge ICs; 80 MHz CPU ensures <10 ms UI response latency under full load. |
Use Scenario: Field-deployable node collecting temperature, humidity, and vibration data, then uploading via USB to host PC. IC Role / Device Role / Timing Role: Data concentrator with RTCC timestamping, 10-bit ADC oversampling, and USB device-class enumeration as CDC ACM virtual COM port. Use Value: On-chip USB PHY and dedicated DMA reduce component count by 3 ICs; 16 KB SRAM holds >2 seconds of 1 ksps sensor data before upload. |
| Programmable Logic Controller (PLC) I/O Module | Medical Diagnostic Interface |
|
Use Scenario: DIN-rail mounted module converting discrete 24V inputs and driving relay outputs via optocouplers. IC Role / Device Role / Timing Role: Real-time I/O processor with deterministic GPIO toggle (≤12.5 ns), PWM-controlled LED indicators, and UART-based Modbus RTU communication. Use Value: 18 mA sink/source per I/O pin drives optocoupler LEDs directly; Fail-Safe Clock Monitor prevents undetected lockup in safety-critical control paths. |
Use Scenario: Portable diagnostic tool connecting analog biosensors (ECG, SpO₂) to PC via USB for waveform analysis. IC Role / Device Role / Timing Role: Signal acquisition engine with synchronized 10-bit ADC sampling, hardware averaging, and USB HID report transmission. Use Value: 1000 ksps ADC supports ≥200 Hz Nyquist bandwidth for ECG; integrated CVREF provides stable 1.2V reference for ratiometric sensor scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PIC32MX440F128H | Same 64-pin TQFP package, identical 128 KB Flash/16 KB SRAM, but adds dedicated USB DMA channel and VBUS sensing (VBUSON) | Required for self-powered USB devices needing VBUS detection and higher USB throughput | Select when USB host negotiation or VBUS-aware power management is mandatory |
| PIC32MX340F128H | Same core, memory, and peripherals, but lacks USB OTG controller and dedicated USB DMA - only general-purpose variant | Suitable for non-USB applications requiring UART/I²C/SPI connectivity and lower cost | Choose when USB functionality is unnecessary and BOM cost optimization is prioritized |
Compared with PIC32MX440F128H, MA320002 omits VBUSON and USBID pins, reducing USB self-power detection capability but maintaining full USB device enumeration; versus PIC32MX340F128H, MA320002 retains full USB OTG compliance - making it the minimal-USB-capable variant in the MX3XX family.
Availability
MA320002 is available at Aetrix Electronics and suitable for industrial HMI, USB sensor gateways, and programmable logic controller I/O modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature (-40°C to +105°C).
Supply support for MA320002 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 Inc. is a leading provider of microcontrollers, analog, and Flash-IP solutions, headquartered in Chandler, Arizona, with ISO/TS-16949:2002 certification across design and wafer fabrication facilities.
The PIC32MX3XX/4XX family was designed for high-performance, USB-enabled embedded applications demanding deterministic real-time execution, low-power operation, and seamless host connectivity - targeting industrial control, medical instrumentation, and consumer electronics.
FAQ
What is the maximum operating frequency and core architecture of the MA320002?
The MA320002 uses a MIPS32® M4K® 32-bit RISC core with a 5-stage pipeline, achieving up to 80 MHz operation and 1.56 DMIPS/MHz performance. Its prefetch cache and dual PLL architecture allow independent CPU and USB clock domains - ensuring deterministic timing for both real-time control and USB communication without contention.
Does the MA320002 include an integrated USB transceiver, and what USB speed does it support?
Yes, the MA320002 integrates a full-speed USB 2.0 transceiver compliant with USB specification revision 2.0. It supports 12 Mbps data rates and operates in device, host, and OTG modes. The D+/D- pins connect directly to the USB connector without external components, and the dedicated USB DMA channel offloads data movement from the CPU.
What are the memory resources available on the MA320002?
The MA320002 provides 128 KB of main Flash program memory plus 12 KB of boot Flash, and 16 KB of SRAM. The boot Flash supports secure bootloader implementation with write-protection, while the SRAM includes dedicated sections for USB descriptor tables and RTOS task stacks - verified in Microchip's MPLAB Harmony v2.x framework for MA320002.
How many analog input channels and what ADC resolution does the MA320002 offer?
The MA320002 features a 10-bit Analog-to-Digital Converter with up to 16 input channels (AN0–AN15), capable of 1000 ksps conversion rate. Conversion can occur during Sleep and Idle modes, enabling ultra-low-power sensor monitoring. Internal voltage references (VREF+/VREF-, CVREFOUT) support ratiometric measurements without external precision references.
Is the MA320002 pin-compatible with other PIC32MX devices, and what package options are available?
The MA320002 is offered exclusively in a 64-pin TQFP (PT) package and is pin-compatible with other 64-pin PIC32MX3XX/4XX devices sharing the same pinout - including PIC32MX320F128H and PIC32MX440F128H. This allows hardware reuse across variants with differing peripheral sets (e.g., USB presence/absence) without PCB redesign.
MA320002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Accessory Type:
- Plug-In Module (PIM)
- For Use With/Related Products:
- PIC32MX460F512L
MA320002 FAQ
1.How can I place an order for MA320002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MA320002 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 MA320002 reliable?
The price and inventory of MA320002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MA320002 is usually 5 days.
3.What payment methods are accepted for MA320002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MA320002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MA320002?
MA320002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MA320002 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 MA320002?
For technical support, including MA320002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MA320002 requirements.
6.How does Aetrix verify that MA320002 is sourced from the original manufacturer or authorized distributors?
All MA320002 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 MA320002 meets industry standards.
7.What is the process for return or replacement of MA320002?
All MA320002 units undergo pre-shipment inspection (PSI). If there is an issue with MA320002, 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 MA320002 part is unused and in its original packaging.
Return procedure for MA320002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MA320002 Tags
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5385
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FIT0587
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PRT-14427
SparkFun Electronics
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PRT-10474
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PRT-15109
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PRT-11417
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1131
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MIKROE-485
MikroElektronika
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2223
Adafruit Industries LLC
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PRT-14017
SparkFun Electronics
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