Intel determined the Busicom design was too complex, since serial memories required more components, and would use 40 pins, a packaging standard different from Intel's own 16-pin standard. Intel proposed to develop a new design which could be produced with standard 16-pin DIP packaging, and would have a reduced instruction set. The memory simplification would come from using Intel's newly developed dynamic RAM memory. This new design was the 4004 chip, which is one of a set of four chips, along with ROM, DRAM, and serial-to-parallel shift register chips. The 4004 was subsequently designed by Federico Faggin using silicon gate technology and built of approximately 2,300 transistors and was followed the next year by the first ever 8-bit microprocessor, the 3,500 transistor 8008 (and the 4040, a revised and improved 4004). It was not until the development of the 40-pin 8080 in 1974, a project conceived and directed by Faggin that the address and data buses would be separated, giving faster and simpler access to memory.