MC145406

The MC145406 is a silicongate CMOS IC that combines three drivers and three receivers to fulfill the electrical specifications of standards EIA 232E and CCITT V.28. The drivers feature true TTL input compatibility, slewratelimited output, 300W poweroff source impedance,and output typically switching to within 25% of the supply rails. The receivers of MC145406 can handle up to ± 25 V while presenting 3 to 7 kW impedance.Hysteresis in the receivers aids reception of noisy signals. By combining both drivers and receivers in a single CMOS chip, the MC145406 provides efficient, lowpower solutions for EIA 232E and V.28 applications.