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STC12C5A60S2 is a single-chip microcontroller based on a high performance 1T architecture 80C51 CPU which is produced by STCmicro Limited The STC12C5A60S2retains all featuresof the standard 80C51. In addition, has 10-bit ADC,two UARTs,on-chip crystal oscillator,2channel PCA and PWM, SPI
STC15F104Wis 1T80C51 microcontroller with 4K Bytes flash ROM and on-chip high precision RC oscillator, which means to meet the requirements(5MHz ~35MHz) factory calibrated to ±1%, typical,