Semiconductor integrated circuit device having step-down voltage

Details Semiconductor integrated circuit device having step-down voltage Semiconductor integrated circuit device having step-down voltage

1999-03-16

2000-05-23

Nelms, David

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

36518909, G11C 700

Patent

active

060672579

ABSTRACT:
A semiconductor integrated circuit device is provided with an internal circuit which receives a source voltage supplied from an external terminal and is activated based on a voltage obtained by reducing the source voltage, and an output circuit which outputs a signal to be outputted produced by the internal circuit, through an external terminal in accordance with a timing signal. In the semiconductor integrated circuit device, a level shift circuit converts the signal produced by the internal circuit to a signal level corresponding to the level of the source voltage supplied from the external terminal. The output circuit outputs the level-shifted signal therefrom using a timing signal of a voltage level corresponding to the source voltage supplied from the external terminal.

REFERENCES:
patent: 5905685 (1999-05-01), Nakamura et al.

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