Input circuit incorporated in a semiconductor device

Details Input circuit incorporated in a semiconductor device Input circuit incorporated in a semiconductor device

1988-11-25

1990-03-20

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

36518903, G11C 700

Patent

active

049107100

ABSTRACT:
An input circuit incorporated in a semiconductor device is provided in association with a multi-purpose input terminal which is shared by first and second input signals different in voltage level from each other, and the input circuit comprises an input buffer circuit for storing the first input signal, a series combination of a first field effect transistor, an intermediate node and a second field effect transistor coupled between the multi-purpose input terminal and an internal circuit supplied with the second input signal, a resistor coupled between a source of constant voltage and the intermediate node, a first control circuit producing a first gate control signal supplied to a gate electrode of the second field effect transistor, and a second control circuit capable of detecting the second input signal and producing a second gate control signal supplied to a gate electrode of the first field effect transistor, so that the second field effect transistor keeps off even if the first field effect transistor undesirable turns on.

REFERENCES:
patent: 4761764 (1988-08-01), Watanabe

Affiliated with

Also associated with

Rating

Input circuit incorporated in a semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Input circuit incorporated in a semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Input circuit incorporated in a semiconductor device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-797516