MC14543BD ON Semiconductor

MC14543B BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals The MC14543B BCDtoseven segment latch/decoder/driver is designed for use with liquid crystal readouts, and is constructed with MC14543B MAXIMUM RATINGS (Voltages Referenced to V ) SS Parameter Symbol Value Unit DC Supply Voltage Range V 0.5 to +18.0 V DD Input Voltage Range, All Inputs V 0.5 to V +0.5 V in DD DC Input Current per Pin I 10 mA in Power Dissipation per Package (Note 1) P 500 mW D Operating Temperature Range T 55 to +125 C A Storage Temperature Range T 65 to +150 C stg Maximum Continuous Output Drive Current (Source or Sink) I 10 mA OHmax I (per Output) OLmax Maximum Continuous Output Power (Source or Sink) (Note 2) P 70 mW OHmax P (per Output) OLmax Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Temperature Derating: D/DW Package: 7.0 mW/ C From 65 C To 125 C 2. P = I (V V ) and P = I (V V ) OHmax OH OH DD OLmax OL OL SS This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this highimpedance circuit. For proper operation, V and V in out should be constrained to the range V (V or V ) V . SS in out DD Unused inputs must always be tied to an appropriate logic voltage level (e.g., either V or V ). Unused outputs must be left open. SS DD TRUTH TABLE Inputs Outputs LD BI Ph* D C B A a b c d e f g Display X 1 0 X X X X 0 0 0 0 0 0 0 Blank 1 0 0 0 0 0 01 11 111 0 0 1 0 0 0 0 0 10 11 000 0 1 1 0 0 0 0 1 01 10 110 1 2 1 0 0 0 0 1 11 11 100 1 3 1 0 0 0 1 0 00 11 001 1 4 1 0 0 0 1 0 11 01 101 1 5 1 0 0 0 1 1 01 01 111 1 6 1 0 0 0 1 1 11 11 000 0 7 1 0 0 1 0 0 01 11 111 1 8 1 0 0 1 0 0 11 11 101 1 9 1 0 0 1 0 1 0 0 0 0 0 0 0 0 Blank 1 0 0 1 0 1 1 0 0 0 0 0 0 0 Blank 1 0 0 1 1 0 0 0 0 0 0 0 0 0 Blank 1 0 0 1 1 0 1 0 0 0 0 0 0 0 Blank 1 0 0 1 1 1 0 0 0 0 0 0 0 0 Blank 1 0 0 1 1 1 1 0 0 0 0 0 0 0 Blank 00 0 XX XX ** ** Inverse of Output Display Combinations as above Above X = Dont care = Above Combinations * = For liquid crystal readouts, apply a square wave to Ph For common cathode LED readouts, select Ph = 0 For common anode LED readouts, select Ph = 1 ** = Depends upon the BCD code previously applied when LD = 1