AT32UC3A4128-C1UT

Microcontrollers Overview

The AT32UC3A4128-C1UT is a 32-bit microcontroller from the AVR32 UC3 A4 series, manufactured by Microchip Technology. It features an AVR32 RISC processor core operating at frequencies up to 84 MHz. The device integrates 128 KB of internal high-speed Flash memory and 64 KB of SRAM. It includes a Memory Protection Unit (MPU), Peripheral DMA Controller (PDCA), and four generic DMA channels. Key peripherals include a High-Speed USB 2.0 interface, two SPIs, four USARTs, two TWIs, an 8-channel 10-bit ADC, and six Timer/Counter channels. The component is housed in a 100-ball VFBGA package with dimensions of 7x7 mm and a 0.65 mm pitch.

Microcontrollers Feature Summary

• Integrates a compact single-cycle RISC instruction set including DSP capabilities for efficient code execution.
• Features a multi-layer bus system with separate buses for high-performance data transfers between peripherals and memories.
• Includes a dedicated High-Speed USB 2.0 interface supporting both Device and Embedded Host modes.
• Provides hardware encryption support via an Advanced Encryption System (AES) module.

Microcontrollers Applications

• Mass storage applications utilizing USB flash disk or printer connectivity
• Embedded systems requiring secure data processing with AES encryption
• Audio streaming applications supported by Synchronous Serial Controller (I2S)
• Interfaces with external memory devices such as SDRAM, NAND Flash, or Compact Flash

Microcontrollers Procurement Notes

Verify the specific suffix 'C1UT' against official Microchip documentation to confirm the exact package type and temperature range. Ensure compatibility with existing design constraints regarding the 100-ball VFBGA footprint. Confirm that the required peripheral configurations align with the multiplexed I/O capabilities defined in the datasheet. Cross-reference the part number with current product change notifications to ensure no recent manufacturing updates affect functionality.

Microcontrollers Selection Notes

Select this component when a balance of moderate Flash capacity and high-speed connectivity is required within a small form factor. The VFBGA100 package suits space-constrained designs compared to larger QFP or TFBGA options. Consider the 84 MHz maximum frequency and available DMA channels for handling high-bandwidth data streams efficiently. Evaluate the GPIO count of 70 against interface requirements, noting that some pins are shared with critical functions like the External Bus Interface.

Microcontrollers Part Context

This model belongs to the AT32UC3A4 family, which shares architectural similarities with the AT32UC3A3 series but differs in pin count and GPIO availability. The A4 variant specifically utilizes the 100-ball VFBGA package, offering a more compact solution than the 144-pin alternatives found in the A3 series. It retains the same core processor performance and peripheral sets, differing primarily in physical implementation and available General Purpose Input/Output lines.

Microcontrollers Replacement Considerations

AT32UC3A4128-C1UR