1
Yong K Lee, Joseph R Domitrowich: Regulated MOS substrate bias voltage generator for a static random access memory. Fairchild Camera & Instrument, Paul J Winters, Theodore Scott Park, Michael J Pollock, March 30, 1982: US04322675 (25 worldwide citation)

A regulated substrate bias voltage generating system for maintaining a minimum data retaining current through an associated MOS memory. The negative substrate bias voltage is generated by a charge pump operating under the control of a two-phased output oscillator, the operation of which is enabled a ...


2
Yong K Lee, Joseph R Domitrowich: MOS Battery backup controller for microcomputer random access memory. Fairchild Camera & Instrument, Kenneth Olsen, Theodore S Park, Michael J Pollock, May 17, 1983: US04384350 (15 worldwide citation)

MOS Control circuitry for incorporation on a microcomputer IC chip for assuring adequate power to maintain the data in an associated static random access memory. A rechargeable battery provides standby power, and the voltage level of the battery is compared with the microcomputer V.sub.cc supply. Wh ...