Variable input threshold adjustment

Details Variable input threshold adjustment Variable input threshold adjustment

1994-07-29

1996-12-31

Westin, Edward P.

Electronic digital logic circuitry

Interface

Logic level shifting

326 34, 326 50, 326 81, H03K 190948

Patent

active

055897835

ABSTRACT:
According to the present invention, an integrated circuit device is capable of responding to more than one input threshold voltage level by making only minimal changes to the device. The input buffer of the integrated circuit device is modified to be a programmable buffer that is controlled by a control input signal which may be generated by several different control means. Such control means include a bond option, a mask option, a fuse option, a register option, and a voltage detector option.

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patent: 5438280 (1995-08-01), Sugawara

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