Low power 16 bit microcontroller for Epson high-precision A/D converters

The functions required for digital multimeters developed for measurement in S1C17M02 and S1C17M03 are achieved through high-resolution 16 bit ΔΣ A/D converter, as well as dedicated circuits for switching between voltage, current, resistance, capacitance, continuity, diode, and frequency measurement modes, to achieve multifunctional and high-precision measurement. The optimal measurement conditions can be set by setting programmable oversampling, and a square root circuit for finding the true root mean square value can be set to reduce software processing load. In addition, the peak holding function supports maintaining maximum and minimum measurement values. In addition to circuits designed specifically for measurement, the microcontroller also has built-in flash memory, EEPROM, LCD drivers, and other peripheral circuits for storing calibration and measurement data, thereby reducing the number of required external devices. By providing a product lineup with functional compatibility, Epson can also help customers shorten software development time when expanding product models.

Product features

1、 Measurement circuit optimization, suitable for digital multimeters and other measuring instruments equipped with displays

*Analog circuits used to measure voltage, current, resistance, capacitance, continuity, diodes, and frequency

*Programmable oversampling settings

*Peak holding function

*Square root circuit for finding true effective value

*An averaging circuit that can be selected between mean square mean and mean absolute value mean