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High precision ADC, 4000 or 6000 counts, auto-range measurement

AC true RMS output, measurement error<0.5% at 2kHz passband corner

Built-in voltage divider, no external resistor divider needed

Programmable multi-functional measurement network， support voltage, current, resistor, diode, transistor, open/short, temperature, capacitor, and frequency measurements

Built-in charge pump, can measure 3V diode

Multi-functional comparator with latch function

8 bits RISC ultra-low power MCU, 49 instructions and 6 stack levels. The MCU current consumption is 400μA typically at 3.3V and 2MHz operating clock rate. Standby current is 1.5μA at 32kHz clock, and less than 1μA at sleep

16k Bytes OTP for program storage, 256 Bytes SRAM for data storage

24 bit TMRA, TMRB, and TMRC arithmetic units for frequency and duty cycle calculations

Low OTP programming voltage, can replace external EEPROM

Flexible battery voltage detection range 2.0~3.3V

Abundant peripheral resources: UART, PWM, PFD, BUZ, and TIMER

18SEG× 4COM LCD drive, ultra-low power consumption and high driving capability, programmable boost module to maintain luminance at low supply voltage, support grey scale adjustment. Support grey scale adjustment

Every digital I/O port contain Schmitt trigger inputand selectable pull up resistor

Low voltage detection and power on reset circuit

Operating voltage range: 2.4~3.6V

Operating temperature range: -40 ~85 ?C

Built-in 8MHz and 32kHz RC oscillators