ST34C86 Overview
The ST34C86 is a quad differential line receiver designed to meet the RS-422, RS-423, and Federal Standard 1020 and 1030 for balanced and unbalanced digital data transmission, while retaining the low power characteristics of CMOS. The ST34C86 has an input sensivity of 200mV over the mon mode input voltage range of ±7V. The ST34C86 internal pull-up and pull-down resistors.