Each device has an eight-bit CMOS shift register and CMOS control circuitry, eight CMOS data latches, and eight bipolar current-sinking Darlington output drivers.

A high accuracy temperature sensor is designed by applying the temperature characteristics of a substrate bipolar transistor in CMOS technology.

The bipolar transistors or the resistors in the traditional current reference were replaced by MOS transistors working in the subthreshold region to achieve an all CMOS current reference.