Semiconductor device with an input/output interface circuit...

Details Semiconductor device with an input/output interface circuit... Semiconductor device with an input/output interface circuit...

2005-09-20

2005-09-20

Phung, Anh (Department: 2824)

Static information storage and retrieval

Read/write circuit

Plural use of terminal

C326S082000, C326S086000, C326S088000, C710S305000

Reexamination Certificate

active

06947335

ABSTRACT:
There is provided a control circuit which instructs, using a control signal, validation and invalidation of operations of an input/output interface circuit suitable for a bus such as the IIC bus and maintains an output element included in the input/output interface circuit to the OFF stage without relation to voltage change at the external terminal corresponding to the input/output interface circuit in response to invalidation of operation due to the control signal. Accordingly, a semiconductor device which can be used flexibly with a simplified structure and prevents erroneous output in the output circuit corresponding to the IIC bus can be obtained.

REFERENCES:
patent: 4689740 (1987-08-01), Moelands et al.
patent: 5790526 (1998-08-01), Kniess et al.
patent: 6253268 (2001-06-01), Bjorkengren et al.
patent: 6339806 (2002-01-01), Foster et al.

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