MC14511BDW ON Semiconductor

MC14511B BCD-to-Seven Segment Latch/Decoder/Driver The MC14511B BCDtoseven segment latch/decoder/driver is constructed with complementary MOS (CMOS) enhancement mode devices and NPN bipolar output drivers in a single monolithic structure. MC14511B This device contains protection circuitry to protect the Due to the sourcing capability of this circuit, damage can inputs against damage due to high static voltages or electric occur to the device if V is applied, and the outputs are DD fields. However, it is advised that normal precautions be shorted to V and are at a logical 1 (See Maximum SS taken to avoid application of any voltage higher than Ratings). maximum rated voltages to this highimpedance circuit. Unused inputs must always be tied to an appropriate logic A destructive high current mode may occur if V and V voltage level (e.g., either V or V ). in out SS DD are not constrained to the range V (V or V ) V . SS in out DD PIN ASSIGNMENT B 1 16 V DD C 2 15 f a LT 3 14 g fg b BI 4 13 a e c LE 5 12 b d D 6 11 c A 7 10 d V 8 9 e SS DISPLAY 012 3 4 5 6 7 8 9 TRUTH TABLE Inputs Outputs LE BI LT D C B A a b c d e f g Display X X 0 X X X X 1 11 11 11 8 X 0 1 X X X X 0 0 0 0 0 0 0 Blank 0 1 10 00 01 11 11 10 0 0 1 10 00 10 11 00 00 1 0 1 10 01 01 10 11 01 2 0 1 10 01 11 11 10 01 3 0 1 10 10 00 11 00 11 4 0 1 10 10 11 01 10 11 5 0 1 10 11 00 01 11 11 6 0 1 10 11 11 11 00 00 7 0 1 11 00 01 11 11 11 8 0 1 11 00 11 11 00 11 9 0 1 1 1 0 1 0 0 0 0 0 0 0 0 Blank 0 1 1 1 0 1 1 0 0 0 0 0 0 0 Blank 0 1 1 1 1 0 0 0 0 0 0 0 0 0 Blank 0 1 1 1 1 0 1 0 0 0 0 0 0 0 Blank 0 1 1 1 1 1 0 0 0 0 0 0 0 0 Blank 0 1 1 1 1 1 1 0 0 0 0 0 0 0 Blank 11 1 X X X X * * X = Dont Care * Depends upon the BCD code previously applied when LE = 0