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Atmel has introduced new 32-bit microcontroller AT32UC3A3 with high speed USB interface with On-The-Go, a dual high speed SD/MMC card interface, SDRAM and NAND flash interface with SLC, MLC and ECC. This MCU powered by Atmel’s 91 DMIPS AVR32 CPU is suitable for iPod like audio player docking station markets where Atmel’s another microcontroller AT32UC3A introduced in 2007 is already doing well. With DMA controller and high speed USB, this device is also suggested for any other applications requiring audio/video type data swapping.
The key features of this microcontroller are,
1. AT32UC3A3 features distributed SRAM architecture to eliminate latency and potential delay for data flowing through the controller. The 128 KB of on-chip SRAM is split into 3 regions, each offering a separate memory interface to the memory and peripheral DMA controllers to enable faster data transfer.
2. Offers DSP instructions to handle audio decoding of digital audio stream.
3. Offers an integrated stereo 16-bit bit DAC.
Atmel also provide development kit for developing audio player docking stations.
Availability: Now
Price: Each at US$4.41 for 10K pieces
The development kit is priced at US$169.
Atmel has announced the introduction of a new AVR32 microcontroller with high speed communication.
Featuring Atmel’s 91 DMIPS AVR32 CPU, the AT32UC3A3 includes Hi-Speed USB interface with On-The-Go, a dual high speed SD/MMC card interface plus SDRAM and NAND flash interface with SLC, MLC, and ECC. It is targeted to the rapidly growing digital media solutions and audio player docking station markets, where Atmel said it has seen success with the AT32UC3A introduced in 2007. The AT32UC3A3 also fits a wider range of embedded applications where fast transfer of large amounts of data is a requirement, the company noted.
Atmel explained that the AT32UC3A3 features Atmel’s peripheral DMA controller in combination with a multilayer databus. This offloads the CPU by automating the transmission of large packets of data. In addition, to the dual port SRAM found in all AVR32 microcontrollers, the AT32UC3A3 introduces for the first time a distributed SRAM architecture that eliminates latency and potential delay for data flowing through the controller. The 128 KB of on-chip SRAM is split into 3 regions, each offering a separate memory interface to the memory and peripheral DMA controllers. This allows multiple hi-speed data transfers to run simultaneously.
The AVR32 offers a wide range of DSP instructions usually only found in high end CPUs and DSPs, Atmel said. Its high performance eliminates the need for custom audio decoder hardware, and it is capable of decoding a stereo MP3 stream at less than 25 MHz. With a maximum speed of up to 66 MHz, this means there is plenty of CPU performance left to handle “heavier” audio formats such as AAC.
The AVR32 microcontroller offers an integrated stereo 16-bit bitstream DAC. Atmel noted that this requires only a small external power amplifier to generate the output voltages required for line, headphones or external speakers. Playback in four channel audio or full surround sound requires an external audio codec, usually connected to the microcontroller’s IIS interface.
Atmel is a provider of the design and manufacture of microcontrollers, advanced logic, mixed-signal, nonvolatile memory and radio frequency (RF) components.
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