HEF4755V

INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC04 LOCMOS HE4000B Logic Family Specifications HEF, HEC The IC04 LOCMOS HE4000B Logic Package Outlines/Information HEF, HEC HEF4754V LSI 18-element bar graph LCD driver Product specification File under Integrated Circuits, IC04 January 1995 Philips Semiconductors Product specification 18-element bar graph LCD driver DESCRIPTION HEF4754V LSI The HEF4754V drives an 18-element bar graph LCD in linear relation to the control voltage (Vc) in a pointer or thermometer mode. Fig.1 Functional diagram. FAMILY DATA See Family Specifications January 1995 2 Philips Semiconductors Product specification 18-element bar graph LCD driver PINNING VOSC Vc Vref min Vref max I1 I2 I3 O1 to O18 OR oscillator terminal control voltage input reference voltage inputs thermometer/pointer (choice select input) peak value; reset/9 or 18 bars (choice select input) reset; repetitively reset (choice select input) bar outputs back plate output HEF4754V LSI HEF4754VP(N): 28-lead DIL; plastic (SOT117-2) HEF4754VD(F): 28-lead DIL; ceramic (cerdip) (SOT135) HEF4754VT(D): 28-lead SO; plastic (SOT136-1) ( ): Package Designator North America FUNCTION TABLE I1 L L H H H Note 1. H = HIGH state (the more positive voltage) 2. L = LOW state (the less positive voltage) 3. X = state is immaterial I2 L H L H H I3 X X X L H MODE pointer; 18 bars pointer; 9 bars thermometer; no peak value thermometer; peak value, repetitivel...