THE 2-MINUTE RULE FOR LOGIC INTEGRATED CIRCUITS

The 7400 chip, containing four NANDs. The two added pins source energy (+5 V) and join the ground. For smaller-scale logic, designers now use prefabricated logic gates from people of equipment including the TTL 7400 collection by Texas Instruments, the CMOS 4000 collection by RCA, and their Newer descendants. Ever more, these mounted-operate logic