1. Example: 7 Segment Displays BA 00 01 11 10 DC\ 00 1011 01 0111 11 xxxx 10 11xx Decimal Number Inputs Outputs DCBA abcdefg 01234567890123456789 00000000110000000011 00001111000000111100 00110011000011001100 01010101010101010101 10110111111011011111 11111001111111100111 11011111111101111111 10110110111011011011 10100010101010001010 10001110111000111011 00111110110011111011

2. Example: 7 Segment Displays, Segment a BA 00 01 11 10 DC\ 00 1011 01 0111 11 xxxx 10 11xx Red cells are represented by B; this is a 4x2 supercell. BA 00 01 11 10 DC\ 00 1011 01 0111 11 xxxx 10 11xx Green cells are represented by D; this is a 2x4 supercell. BA 00 01 11 10 DC\ 00 1011 01 0111 11 xxxx 10 11xx Blue cells are represented by A. C; BA 00 01 11 10 DC\ 00 1011 01 0111 11 xxxx 10 11xx Cyan cells are represented by A'. C'; All cells are represented by B + D + A·C + A' · C'

3. 7 segment decoder

4. Karnaugh Map for Simplifying Logic Function BC00011110 A 00110 10011

5. More Applications of Combinational Logic Multiplexer or data selector: 2 n data, needs n address (data select) lines

6. More Applications of Combinational Logic ROM: 2 m  n cell, where n is # of bits in each word. needs m address (or data select) lines Erasable Programmable read-only memory (EPROM): Automobile applications