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Handwritten blog 9,10

Shaos July 27, 2010 electronics, notes No Comments

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Now I’m thinking about building binary circuits based on 74F00:

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Handwritten blog 7,8

Shaos July 18, 2010 electronics, notes, ternary, trimux No Comments

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Explanation of idea about ternary hardware based on DG403 switches and also attempt to apply the same approach to 4-value logic:

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Ternary Hardware – CMOS switches

Shaos July 10, 2010 electronics, ternary, trimux 1 Comment

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DG403-1

DG403: one chip with resistors

Here I use undocumented feature of DG403 when normally closed switch opened by voltage lower than required to close another (normally opened) switch. Variable resistor is used to move that “both-opened” window to ternary “0″ zone (up from -3.0V…-0.8V to cover 0V).

DG403-2

DG403: two chips - no more components

Second scheme is more “correct” (nothing from undocumented features were used).

P.S. Ternary selector may be used as ternary inverter when RP=-5V, RO=0V, RN=+5V. … Continue Reading