Electronic digital logic circuitry – Interface – Supply voltage level shifting
Patent
1999-05-28
2000-08-22
Mai, Son
Electronic digital logic circuitry
Interface
Supply voltage level shifting
326 58, 326 63, 326 83, H03K 190175
Patent
active
061078328
ABSTRACT:
An input/output circuit in which, one of the two output signals from a signal level converting circuit is inputted into one input terminal of a NAND gate and into one input terminal of a NOR gate, while the other signal is inputted into the other input terminal of the NOR gate and also to the other input terminal of the NAND gate through an inverter. An output signal from the NAND gate and NOR gate is inputted into the gate of a PMOS transistor and into a gate of a NMOS transistor, which makes it possible to prevent the PMOS transistor and NMOS transistor from concurrently being ON and also prevents a through current from flowing therethrough.
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Mai Son
Mitsubishi Denki & Kabushiki Kaisha
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