Power-on strap inputs

Details Power-on strap inputs Power-on strap inputs

1990-10-30

1991-09-24

Hudspeth, David

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307243, H03K 19177

Patent

active

050516221

ABSTRACT:
A technique for providing external mode select information to a chip capable of operating in different modes without adding pin overhead. One of the normal signal pins of the chip is used as an input pin for a brief period of time at power-on before the chip becomes fully operational. During this time, a mode select signal from outside is communicated onto the pin and latched into the chip, where it remains during subsequent normal operation of the chip.

REFERENCES:
patent: 4717912 (1988-01-01), Harvey et al.
patent: 4771285 (1988-09-01), Agrawal et al.
patent: 4772811 (1988-09-01), Fujioka et al.
patent: 4783606 (1988-11-01), Goetting
patent: 4940909 (1990-07-01), Mulder et al.
patent: 4985641 (1991-01-01), Nagayama et al.
patent: 4985650 (1991-01-01), Schuett et al.
Declaration of Mark S. Garetz plus exhibits.

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