SEMICONDUCTOR INTEGRATED CIRCUIT - MITSUBISHI ELECTRIC CORP

Title:

SEMICONDUCTOR INTEGRATED CIRCUIT

Document Type and Number:

Japanese Patent JPH066202

Kind Code:

A

Abstract:

PURPOSE: To provide an output buffer which has a short transition time of the output signal and is hard to generate noises.

CONSTITUTION: A pull-up control circuit 1 controls a pull-up transistor TR 31 of a buffer circuit 3, and the source of an N-channel TR 11 included in the circuit 1 is connected to a reference voltage terminal 101 which receives the reference voltage VREF generated by a reference voltage generating circuit 4. The voltage VREF has a constant level that is lower than the power voltage Vcc and not depenent on this voltage Vcc.

Inventors:

HIGASHIDE YOSHIKO
SHIOMI TORU
TSUDA NOBUHIRO
OKAMOTO YASUYUKI

Application Number:

JP10675792A

Publication Date:

January 14, 1994

Filing Date:

April 24, 1992

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP

International Classes:

G11C11/409; G11C11/407; H03K19/017; H03K19/0175; (IPC1-7): H03K19/0175; G11C11/409; H03K19/017

Attorney, Agent or Firm:

Fukami Hisaro (3 outside)

Next Patent: OUTPUT CIRCUIT