华邦的 51 系列, W79E823: 4KB FLASH ROM, 128B RAM, 128B FLASH EPROM, 4x10bit ADC, 4x10bit PWM, USART, I2C W79E824: 8KB FLASH ROM, 256B RAM, 256B FLASH EPROM, 4x10bit ADC, 4x10bit PWM, USART, I2C W79E825: 16KB FLASH ROM, 256B RAM, 256B FLASH EPROM, 4x10bit ADC, 4x10bit PWM, USART, I2C
DIP20 和 SOP20 封装。
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