Semiconductor device

Details Semiconductor device Semiconductor device

2007-11-27

2007-11-27

Mai, Son L. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S189070, C365S230030

Reexamination Certificate

active

11443348

ABSTRACT:
In a semiconductor device, an internally-generated power supply voltage VPP is monitored. If the internally-generated power supply voltage VPP is lower than a lower limit voltage, serial refresh is selected as a double refresh operation mode. In the serial refresh, double refresh for a pair address is inserted in a next refresh cycle. By the serial refresh, decrease of the internally-generated power supply voltage VPP is suppressed.

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