Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1997-05-27
1999-02-23
Wambach, Margaret Rose
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327143, 327530, 36518905, 307 85, H03L 700
Patent
active
058748539
ABSTRACT:
A semiconductor integrated circuit system includes a first power line which supplies a first source power voltage, and a second power line which supplies a second source power voltage. A first edge detecting unit outputs a first edge detection signal when a rising edge of the first source power voltage is detected. A second edge detecting unit outputs a second edge detection signal when a rising edge of the second source power voltage is detected. An output unit is connected to the first power line, and outputs data to a data terminal in a data output cycle and sets the data terminal in a high-impedance state in response to the first edge detection signal. An output control unit is connected to the second power line, and controls the output unit in accordance with a read-data signal in the data output cycle, and controls the output unit in response to the second edge detection signal, so that the data terminal is set in the high-impedance state by the output unit.
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patent: 5663917 (1997-09-01), Oka et al.
patent: 5710741 (1998-01-01), McLaury
patent: 5715198 (1998-02-01), Braceras et al.
IBM Tech Disc Bul. "Regulation circuit for semiconductor memory" vol. 14 No. 1, T L Palfi, Jun. 1971.
Aikawa Tadao
Hatakeyama Atsushi
Mochizuki Hirohiko
Takita Masato
Yamaguchi Shusaku
Fujitsu Limited
Wambach Margaret Rose
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