Electronic Arrays

Electronic Arrays, Inc.

Company type	Private
Industry	Semiconductor
Predecessor	McMullen Associates
Founded	1960s
Founder	Jim McMullen
Defunct	1978
Fate	Acquired by NEC
Headquarters	United States
Products	Integrated circuits, calculator chipsets, microprocessors

Electronic Arrays, Inc. was a manufacturer of integrated circuits (ICs) located in the United States that operated during the 1960s and 1970s. The firm was originally established as McMullen Associates by Jim McMullen along with former employees from General Microelectronics, and it adopted the name Electronic Arrays, Inc. in 1967.

The company became well-known for its calculator chipsets, starting with the EAS100 four-function calculator introduced in 1970. This product initially required six separate chips, but improvements in semiconductor manufacturing enabled the integration of these functions into progressively fewer chips, eventually achieving a single-chip design. Although Electronic Arrays experienced early market success, it gradually lost ground to rivals such as Mostek, Texas Instruments, and subsequently to Japanese companies including Hitachi, NEC, and Toshiba.

In 1976, Electronic Arrays launched the Electronic Arrays 9002, an 8-bit NMOS logic microprocessor. However, difficulties in production combined with intense competition resulted in the discontinuation of this product by November 1977. The company was ultimately acquired by NEC in 1978.