AT28C64B datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/doc0270.pdf

A ROM like the AT28C64B could be used to create a binary or decimal adder or multiplier. Given the 13 address input bits and 8 output data bits of the AT28C64B, calculate the maximum size (inputs/output widths) of numbers that the AT28C64B could be used to create each of these pre-calculated functions: 3. binary addition decimal addition binary multiplication decimal multiplication (Hints for #3: Study both the maximum input and output width afforded by both the AT28C64B address input bit width and the output bit width and consider the limits of the encoding scheme for the given inputs (in decimal, there are 4 bits maximum digit is 9. If there are less than 4 bits available then the number is correspondingly limited. Eg. 3 bits maximum digit is 7) The input numbers don't have to be the same bit width. Everything here is unsigned arithmetic. A ROM like the AT28C64B could be used to create a binary or decimal adder or multiplier. Given the 13 address input bits and 8 output data bits of the AT28C64B, calculate the maximum size (inputs/output widths) of numbers that the AT28C64B could be used to create each of these pre-calculated functions: 3. binary addition decimal addition binary multiplication decimal multiplication (Hints for #3: Study both the maximum input and output width afforded by both the AT28C64B address input bit width and the output bit width and consider the limits of the encoding scheme for the given inputs (in decimal, there are 4 bits maximum digit is 9. If there are less than 4 bits available then the number is correspondingly limited. Eg. 3 bits maximum digit is 7) The input numbers don't have to be the same bit width. Everything here is unsigned arithmetic