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1. US5561384 - Input/output driver circuit for isolating with minimal power consumption a peripheral component from a core section

Office United States of America
Application Number 08555217
Application Date 08.11.1995
Publication Number 5561384
Publication Date 01.10.1996
Grant Number 5561384
Grant Date 01.10.1996
Publication Kind A
IPC
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
K
PULSE TECHNIQUE
3
Circuits for generating electric pulses; Monostable, bistable or multistable circuits
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
K
PULSE TECHNIQUE
19
Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
H03K 3/00
H03K 19/00
CPC
H03K 19/0016
Applicants Advanced Micro Devices, Inc.
Inventors Reents Daniel B.
Quimby Michael S.
Wakeland Carl K.
Agents Daffer Kevin L.
Title
(EN) Input/output driver circuit for isolating with minimal power consumption a peripheral component from a core section
Abstract
(EN)

Within an integrated circuit, an input/output driver circuit is provided. The input/output driver circuit is configured to provide electrical isolation and power savings when the integrated circuit is configured into a computer system such as a personal information device. By providing a mechanism permitting removal of power from the driver circuit, the integrated circuit inhibits current flow from the integrated circuit into a powered-down peripheral device. A force term is activated, when electrical isolation is desired, to inhibit current flow into or from the integrated circuit via an input/output pad voltage level. A power savings is enabled by allowing the power down of peripheral devices coupled to the integrated circuit without the need for external buffer circuits.

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