CMS80F253x series MCUs are enhanced 1T 8051 Flash MCUs, which support 48MHz peripheral operation at the fastest, 24MHz core operation, working voltage 2.1V-5.5V, up to 30 GPIOs, built-in LED driver module, and 6 channels with dead zone control complementary PWM output, up to 30 channels of 12-bit ADC, 2 UARTs, UART1 can be arbitrarily mapped to I/O ports, 1 SPI, 1 I2C, industrial standard design.

> Enhanced 1T 8051

> Working voltage frequency: 2.1V-5.5V @Fsys=48MHz, Fcpu=24MHz

> Working temperature: -40℃-105℃

> Built-in 32KB Flash ROM (support BOOT function area, 0K/1K/2K/ 4K optional), 1KB Data Flash, 256B general RAM, 2KB general XRAM

> Support 4 different oscillation modes

> Up to 30 general-purpose GPIO (all support edge interrupt)

> Up to 30 channels 12-bit ADC, built-in 1.2V reference

voltage, Reference voltage optional 1.2V/2.0V/2.4V/3.0V/VDD

> 5 16-bit timers

> Built-in WDT timer

> Built-in LSE timer, support sleep wake-up Function

> Built-in LED driver (COM, SEG current optional )

> 2 UART serial ports

> 1 SPI

> 1 I2C

> 6-channel enhanced PWM, support independent and complementary mode, complementary mode dead zone delay

> Built-in low voltage reset function (LVR): 1.8V/2.0V/2.5V /3.5V

> Built-in low voltage detection function (LVD): 2.0V~4.3V 8-level optional

> Buzzer BUZZER

> 96bit unique ID (UID)

> Package type: SOP28, LQFP32