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Overview

        HC89F0531 is an enhanced 8-bit MCU designed and developed in high-frequency and low-power CMOS technology. It has 32K bytes flash program memory, 256 bytes IRAM and 1K bytes Xram, up to 22 bidirectional I / O ports, 5 16 bit timers / counters, 3 sets of 12 bit complementary PWM with dead time control, 1 8-bit PWM, 2 UART communication ports, 1 SPI communication port, 1 IIC communication port, up to 14 external interrupts, 16 + 2 12 bit ADC, four system operating modes (normal, low frequency, power down and idle) and 18 interrupt sources.