Static information storage and retrieval – Addressing – Particular decoder or driver circuit
Patent
1998-10-09
2000-09-26
Zarabian, A.
Static information storage and retrieval
Addressing
Particular decoder or driver circuit
36518909, G11C 800
Patent
active
061250759
ABSTRACT:
A semiconductor integrated circuit comprises a semiconductor chip, a power supply terminal provided on the semiconductor chip for receiving a voltage from an external power supply source, an internal circuit provided on the semiconductor chip, a power supply circuit provided on the semiconductor chip for transforming an external power supply voltage received from the power supply terminal for supplying a source voltage resulting from the voltage transformation to the internal circuit, and a control circuit provided on the semiconductor chip for controlling the power supply circuit, wherein the control circuit includes external power supply voltage detecting means and/or temperature detecting means and responds to the signal from the external power supply voltage detecting means and/or the temperature detecting means by changing the power supply voltage to the internal circuit to thereby maintain the operating speed of the internal circuit to be constant.
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Hori Ryoichi
Itoh Kiyoo
Kawahara Takayuki
Kawajiri Yoshiki
Kitsukawa Goro
Hitachi , Ltd.
Zarabian A.
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