Efficient method and resulting structure for integrated circuits

Details Efficient method and resulting structure for integrated circuits Efficient method and resulting structure for integrated circuits

1996-02-14

1997-07-08

Hudspeth, David R.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 33, 326 81, H03K 190185

Patent

active

056465483

ABSTRACT:
A semiconductor integrated circuit receives and transmits signals at more than one set of VH/VL voltage levels. The integrated circuit includes a core region, an input pad, an output pad, peripheral circuitry, and a plurality of power supply lines each at power supply voltage levels V1, V2, V3 . . . Vm. The integrated circuit also includes input circuitry and output circuitry each of which have buffers and translators. The availability of the power lines each at power supply voltage levels V1, V2, V3 . . . Vm and translators allows for the present circuit to transmit and receive various sets of input signals and output signals, all within the same integrated circuit.

REFERENCES:
patent: 4853560 (1989-08-01), Iwamura et al.
patent: 5067003 (1991-11-01), Okamura
patent: 5084637 (1992-01-01), Gregor
patent: 5097152 (1992-03-01), Kohda et al.
patent: 5387809 (1995-02-01), Yamagishi et al.
patent: 5521530 (1996-05-01), Yao et al.

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