Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-05-28
1997-10-07
Cunningham, Terry
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327540, 327545, G05F 302
Patent
active
056752806
ABSTRACT:
An LSI device can provide a desired constant value of a step-down voltage even if there are variations due to the production processes and a stable characteristic of internal circuits is obtained. The LSI device such as a DRAM includes a first input terminal of the high-voltage-side external supply voltage, a constant current source and a second input terminal of the low-voltage-side supply voltage. Further, the device includes a circuit which makes a voltage between two terminals variable due to the disconnection of each fuse. A step-down circuit is formed by the constant current source and the load circuit and provides a step-down voltage V.sub.B for stepping down the external supply voltage V.sub.CC.
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Ito Shigemasa
Nomura Yukihiro
Cunningham Terry
Fujitsu Limited
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