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CMS8S3660 is an enhanced Flash MCU with 1T 8051 core, operating voltage 2.1V-4.5V, main frequency up to 24MHz, I/O up to 14, ADC, PWM, 2 UARTs, 1 I2C.

> 1T enhanced 8051 core, about 8 times faster than 80C51

> Operating frequency: 24MHz

> Operating voltage: 2.1-4.5V

> Operating temperature: -40℃-105℃

> 8KB Flash, 256 Bytes SRAM, 512 Bytes XRAM, 1K Bytes Data Flash

> Up to 18 GPIOs

> Flexible configuration of system clock

> Low power mode

> 1.1mA @IDLE mode

> 6uA @Sleep mode

> Up to 5 general-purpose timers

> 1 independent serial port baud rate generator BRT

> 1 WDT timer, can wake up at regular time

> Up to 6 channels of PWM output, PWM output port can be multi-portMapping

> Up to 18 channels of high-precision 12Bit ADC, conversion rate 140Kps

> 2 general UART, baud rate can be BRT timer generation, support 115K rate

> 1 SPI interface

> 1 I2C interface

> Built-in low voltage reset LVR

> 96BIT unique ID (UID)

> Support IAP/ICP/ISP

> Support serial debugging (SWD)

> Package: SSOP16