Semiconductor integrated circuit having function for switching o

Details Semiconductor integrated circuit having function for switching o Semiconductor integrated circuit having function for switching o

1986-05-08

1988-05-03

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

365207, 365230, G11C 1300

Patent

active

047424869

ABSTRACT:
In a semiconductor integrated circuit comprising an internal circuit, a device for receiving a chip select signal from the outside, a device for receiving an input signal from the outside, and a voltage detecting circuit for detecting whether or not the potential of the input signal is higher than a reference potential; the voltage detecting circuit comprises a first device for differentially comparing the potential of the input signal with the reference potential and generating an output potential in accordance with the results of the comparison, a second device for detecting a predetermined edge of the chip select signal so as to trigger the first device, and a third device for latching the output potential of the first device to the third device when the first device is triggered by the second device, the internal circuit being switched from a first mode to a second mode, or vice versa, in accordance with the output potential of the third device.

REFERENCES:
patent: 4701884 (1987-10-01), Aoki et al.

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