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High precision ADC, 18.6bits ENOB at 8sps (Gain = 256). It can be set to 4 differential or 8 single-ended inputs

Low noise, high input impedance preamplifier with offset calibration and selectable gain options: 1, 4, 8, 16, 32, 64, 128 or 256

12 bits SAR ADC with self-calibration function. Sampling rate and operation mode are selectable

32 bits MCU, 120k Bytes Flash, 8k Bytes Boot and 8k Bytes SRAM

Internal 24MHz and 32kHz RC oscillator with ±1% typical error after calibration

RTC module with external 32.768kHz crystal provides calendar/time information, including leap year. Timing accuracy is adjustable.

33SEG x 4COM, 32SEG x 5COM, 31SEG x 6COM, 29SEG x 8COM LCD drives with ultra-low power consumption and high driving capability. The IC has a programmable boost module to maintain luminance at low supply voltage. Drive voltage range: 2.7~5.2V

Built-in sensor excitation output. Voltage is 2.4~4.5V at 0.3V step

Built-in burnout detect current source

1.2V benchmark output

Built-in sine wave generator with selectable output frequency at 5kHz, 50kHz, 100kHz, and 200kHz. It supports an 8-electrode BIA fat measurement

Two operational amplifiers: OPA and OPB

Flexible low voltage detection and touch button detection circuits including an 8bits DAC and a rail-to-rail input comparator. The voltage detection range is 2.0~5.3V

Built-in silicon temperature sensor with single-point correction, automatic forward and reverse measurement

Peripheral resources include: UART, I2C, SPI, PWM/PDM, CCP, TIMER, Buzzer, 2 external interrupts, and 7 key interrupts

All I/O have Schmidt trigger inputs and pull-up resistors. The resistance of the pull-up resistor is 50kΩ

Operating voltage range: 2.4~5.5V

Operating temperature range: -40~85℃