Semiconductor integrated circuit device for optionally selecting

Details Semiconductor integrated circuit device for optionally selecting Semiconductor integrated circuit device for optionally selecting

1993-07-08

1996-06-25

Tung, Kee Mei

Static information storage and retrieval

Magnetic bubbles

Guide structure

395410, 36523001, G06F 1206

Patent

active

055308180

ABSTRACT:
A semiconductor integrated circuit device has a first unit for generating an address and supplying the address to an external device, a plurality of registers for storing predetermined data which designate an address space, a plurality of comparators, and a second unit. Each of the comparators is used to compare the address output from the first unit and the predetermined data stored in each of the registers. The second unit is used to merge a plurality of outputs of the comparators and to generate an enable signal to activate the external device, when at least one of the outputs of the comparators indicates coincidence between the address and the predetermined data. The semiconductor integrated circuit device makes it possible to activate the external device when at least one of the outputs of the comparators indicates coincidence between the address and the predetermined data.

REFERENCES:
patent: 4707802 (1987-11-01), Takahashi

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