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Here is a link to the high level drawio for the multi-purpose register module

IC's used
LEDs - Red Green Blue White - Mouser LED search - RED 3216
D Flip Flop - 74AHCT273N - 74AHCT273D,118
Bus transceiver - 74HC245N - SMD search - 74HC245D
D Latch - 74HC373 - SMD search - SN74AHC573PWR
555 Timer - TLC555CDR (SMD)
3 to 8 Line Decoder - 74HC138 - SMD 74HC138D,653
EEPROM AT28C64B-15PU
EEPROM AT28C256-15PU - SMD AT28BV256-20JU-T
AND - 74HC08 - SMD SN74LVC1G3208DCKR and 74HC08D,653
OR - 74HCT32 - SMD SN74LVC1G3208DCKR & SN74HCT32DR
NOR - 74HC02 - SMD SN74HC02DR or SN74LS51NSR
NOT - 74HCT04 - SMD SN74LS51NSR
NAND - 74HC00 - SMD SN74LS51NSR
XOR - 74HC86 - SMD 74HC86D,653
XNOR - SMD HEF4077BT
Presettable Counter - 74HC191E - SMD Search - SMD SN74HC191DR
Counter - 74HC4040NE4 - SMD 74VHC4040FT
Adder - SMD 74HCT283
SRAM - AS6C6264 - SMD 256K AS6C62256-55SINTR