Maximum swing thin oxide levelshifter

Details Maximum swing thin oxide levelshifter Maximum swing thin oxide levelshifter

2006-08-01

2006-08-01

Nguyen, Tuan T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

C326S063000, C327S333000, C365S190000

Reexamination Certificate

active

07085177

ABSTRACT:
An apparatus comprising a first transistor pair, second transistor pair, a third transistor pair and a fourth transistor pair. The first transistor pair may be (i) implemented as thin oxide devices and (ii) configured to receive a differential input signal. The second transistor pair may be (i) implemented as thick oxide devices and (ii) configured to generate a differential output signal in response to the differential input signal. The output signal has a voltage higher than the input signal. The third transistor pair may be (i) connected between the first and second transistor pairs and (ii) configured to protect the first transistor pair. The fourth transistor pair may be (i) connected between the third transistor pair and a ground and (ii) configured to increase an operating speed of the apparatus.

REFERENCES:
patent: 5377143 (1994-12-01), McClure
patent: 6300796 (2001-10-01), Troutman et al.
patent: 6801181 (2004-10-01), Matsumoto et al.

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