Programmable non-volatile analog voltage source devices and meth

Details Programmable non-volatile analog voltage source devices and meth Programmable non-volatile analog voltage source devices and meth

1991-11-26

1995-02-07

LaRoche, Eugene R.

Static information storage and retrieval

Analog storage systems

365219, G11C 2700, G11C 2702

Patent

active

053880641

ABSTRACT:
Programmable non-volatile analog voltage source devices and methods wherein analog voltages may be sampled and stored in a non-volatile manner for output, typically through parallel output buffers. In one form and in a single integrated circuit, an input provided to the circuit may be stored at any analog storage location as determined by an address also provided to the circuit, the storage location determining at which of the outputs of the circuit the stored value will appear. While the storage, achieved by way of storage of differential voltages in floating gate MOSFET devices, is non-volatile, the same is also electrically alterable as desired. Various alternate embodiments and methods including the ability to address multiple pages of analog storage locations for storage of analog signals and selective parallel output of each page of the storage, output enable capabilities, parallel inputs and digital inputs are disclosed.

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"Single Chip Voice Message System, Preliminary Specification"; ISD 1016 Series; Information Storage Devices, Inc., Aug. 1991.

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