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K905

High-precision 24-bit ADC SOC product,Abundant peripheral resources: RTC, optional multiple regulated power output, flexible setting of PGIA module, boost module, UART, I2C, SPI, TIMER, PWM/PDM, PFD, CAPTURE input Module, LCD driver, etc.
This product is equipped with 16k Bytes OTP, which can be self-burning at low voltage, diagramming voltage range: 2.4V~3.6V, OTP can be substituted EERPOM is used.

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Product Details

Ultra-low power consumption design, the work of the entire chip in typical applications.
The current is about 1mA (IAD=0) or 1.5mA (IAD=1). mention Provides three working modes: normal working mode, standby mode, rest,sleep mode

High-precision ADC, [email protected], differential 2Channel or single-ended 4 channels; low noise high input impedance amplification, 1, 12.5, 50,100, 200 times gain is optional; 8-bit RISC ultra-low power MCU, working at 2MHz clock, the typical current value of MCU part is 300uA at 3V working voltage; working current at 32kHz clock standby mode is 1.5uA, sleep mode current is less than 1uA ; 16k Bytes OTP program memory, 512Bytes SRAM data memory; low-voltage programming function, can replace external EEPROM; integrated multiple clock oscillators, flexible and diverse clock options,When an external crystal oscillator is selected, it supports the vibration stop detection function; the ADC output rate Selectric range: 8SPS-2kSPS; 24SEG×4COM LCD drive circuit, ultra-low power consumption and large drive capacity design; built-in program-controlled boost module, which can be used in low-voltage conditions

It maintains high-brightness display and supports grayscale adjustment; there is a silicon temperature sensor inside, which can be single-pointed calibration; output 1.2V low temperature drift reference; output four Selectric voltage sources: 2.4V/2.6V/2.9V/3.3V , Provide external sensor excitation signal; Flexible battery detection function, detection range 2.0V~3.3V; ADC external reference and internal reference are optional, internal integration of multiple reference options; RTC module, can provide second signal output; rich peripheral resources :UART, I2C, SPI, PWM/PDM, PFD, TIMER, CAPTURE; power-down detection circuit and power-on reset circuit; working voltage range: 2.4V~3.6V; working temperature range: -40℃~85℃.

Low noise and high input impedance amplification, 1, 12.5, 50, 100, 200 times gain optional;
ADC output rate Selectric range: 8SPS-2kSPS
24SEG×4COM LCD driver circuit, ultra-low power consumption and large
Drive capacity design; built-in program-controlled boost module, can be
Maintain highlight display under low pressure, and support grayscale adjustment
Abundant peripheral resources: UART, I2C, SPI, PWM/PDM, PFD, TIMER, CAPTURE
Operating voltage range: 2.4V~3.6V
Operating temperature range: -40℃~85℃

Forehead thermometer, thermometer, fat scale, jewelry scale and other high-precision electronic scales.

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