Digital voltage shifters and systems using the same

Details Digital voltage shifters and systems using the same Digital voltage shifters and systems using the same

1994-08-10

1995-10-03

Westin, Edward P.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 68, H03K 190175, H03K 19094

Patent

active

054555264

ABSTRACT:
A digital voltage shifter 101 is provided which includes an input buffer 200 having an input for receiving data logic high signals at a first voltage, a true output and a complementary output. A static random access memory cell 220 is also included which operates in response to a voltage supply providing a second voltage differing from the first voltage and having a first input coupled to the true output of the input buffer and a second input coupled to the complementary output of the input buffer. An output driver 230 is further included which operates in response to the second supply voltage and is coupled to an output of the memory cell, the output driver outputting the received logic signals at the second voltage.

REFERENCES:
patent: 3906254 (1975-09-01), Lane et al.
patent: 4450371 (1984-05-01), Bismarck
patent: 4486670 (1984-12-01), Chan et al.
patent: 4730131 (1988-03-01), Sauer
patent: 4978870 (1990-12-01), Chen et al.

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