Quad Line Driver (276-2520) Features Faxback Doc. # 14280 The 1488 is a monolithic quad line driver designed to interface data terminal equipment with data communications equipment in conformance with the specifications of EIA Standard No. RS-232C. Fully interchangeable with MC1488, SN75188, DS1488, XR1488, etc. FEATURES: Current Limited Output +/- 10 mA typ Power-Off Source Impedance 300 Ohms min Simple Stew Rate Control with External Capacitor Flexible Operating Supply Range. Compatible with All DTL and TTL Logic Families (TK/all-03/20/95)