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CMS89F73xx is Cmsemicon 8-bit RISC core chip, clocked at 16MHz, 8K Flash, 256Bytes RAM, 320Bytes Touch RAM, 64Bytes EEPROM, built-in dual-mode touch module, optional external or built-in capacitive mode, maximum support 16 touch buttons, easy to pass CS Dynamic 10V, built-in 32÷16 hardware divider, up to 24 channels of high-precision 12-bit ADC, built-in high-precision 1.2V voltage reference, support 2 UART and IIC, SPI communication interfaces, support two capture, comparison, PWM modules (CCP), supports LED drive module, the maximum current drive capability of the COM port can reach 150mA, built-in 1/2 Bias LCD drive, the drive current of the COM port can be selected with high EFT and ESD performance, and the package form is SOP20, SOP28.

> 8-bit RISC core

Flash: 8Kx16 General

RAM: 256x8

Touch dedicated RAM: 320x8

> Operating voltage range:

3.3V-5.5V@16MHz

2.5V-5.5V@8MHz

> Operating temperature range: -40℃-85℃

> 8 levels Stack buffer

simple and practical instruction system (68 instructions)

Look-up function

Built-in WDT timer

Built-in low-voltage detection circuit

> Interrupt source

3 timed interrupts

RB port level change interrupt

other peripheral interrupts

> Built-in 32÷16 hardware divider

> Built-in 64-byte data EEPROM

> Built-in MSSP communication module (SPI / I2C)

> Capture, compare and PWM module (CCP)

> Built-in 2-channel USART communication module

supports synchronous master-slave mode and asynchronous full-duplex mode

USART0 can be configured in RB4 /RB3 or RC6/RC7

> High-precision 12-bit ADC

> Built-in high-precision 1.2V reference voltage

±1.5% @VDD=2.5V~5.5V TA=25℃

±2% @VDD=2.5V~5.5V TA=- 40℃~25℃