z5a OK,
The difference between z5a chip and z5aq chip is that the performance is not the same
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z5a chip is a single integrated chip, its main characteristics are small size, good direction, high precision, time and temperature drift is small; Working under 5 V single power supply, easy to use, less peripheral components required; High reliability,
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The z5aq chip is an MP3 decoding chip. It is a RISC-based digital signal processor with an instruction set that optimizes audio compression and decompression. The MAS3507 MP3 decoding chip, developed by Micro Semiconductor, allows Rio to load several songs into its own flash memory, which uses the same pins to access rows and columns of memory.