High voltage tolerance output stage

Details High voltage tolerance output stage High voltage tolerance output stage

1997-07-23

2000-11-21

Tokar, Michael

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326121, 326 57, 327333, H03K 190175, H03K 1902, H03L 500

Patent

active

061508446

ABSTRACT:
An output stage for electronic circuits with high voltage tolerance and of the type comprising an output buffer made up of a complementary transistor pair comprising a P-channel MOS pull-up transistor and an N-channel MOS pull-down transistor. The transistors are connected together to make up an output terminal of the stage which comprises in addition a switch having an input connected to the output terminal of the stage and an output connected to the control terminal of the pull-up transistor to drive said control terminal in a state of extinction of the output buffer.

REFERENCES:
patent: 5451889 (1995-09-01), Heim et al.
patent: 5512844 (1996-04-01), Nakakura et al.
patent: 5543733 (1996-08-01), Mattos et al.
patent: 5574389 (1996-11-01), Chu
patent: 5576635 (1996-11-01), Partovi et al.
patent: 5721508 (1998-02-01), Rees
European Search Report from European Patent Application 96830413.9, filed Jul. 24, 1997.

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