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 80C51 Central Processing Unit  MG87FE/L2051 with 2KB flash ROM, 4051/4KB flash ROM; 6051/6KB flash ROM  Operating voltage: E type: 4.5V~5.5V and L type: 2.4V~3.6V  Operation frequency : 48MHz(max)@12T and 24MHz@6T mode - External crystal mode ...

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