KM1008VZH1 The chips are made according to CMOS technology and are designed to work in telephones. Microcircuits KM1008VZH1 represent an electronic dialer with internal RAM for 22 digits for push-button telephones with pulse dialing. ICs allow you to change the duration of the inter-digital pause and the value of the impulse coefficient; redial the last number; keyboard inputs have programmable pause and pulse ratio, antidobe protection, are calculated for the voltage of the subscriber line 60 V. They contain 2936 integral elements.