Semiconductor integrated circuit device having gate array and me

Details Semiconductor integrated circuit device having gate array and me Semiconductor integrated circuit device having gate array and me

1988-06-24

1989-04-25

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

365201, 307465, G11C 700, G11C 1140

Patent

active

048254142

ABSTRACT:
A semiconductor integrated circuit device has a normal mode and a test mode for testing a memory thereof, and comprises input/output buffer parts having input/output terminals, at least one gate array, at least one memory, a first interconnection for coupling the input/output buffer parts, the gate array and the memory and routed depending on a logic operation to be carried out by the semiconductor integrated circuit, and a second interconnection for coupling the input/output buffer parts, the gate array and the memory, where the second interconnection is fixed regardless of the logic operation to be carried out by the semiconductor integrated circuit. The input/output buffer parts comprise a first input/output part having a first terminal which is used in common as an input terminal of the first interconnection for receiving a normal input signal in the normal mode and an input terminal of the second interconnection for receiving a test signal in the test mode, and a second input/output part having a second terminal which is used in common as an output terminal of the first interconnection and an output terminal of the second interconnection.

REFERENCES:
patent: 4608669 (1986-08-01), Klara et al.
patent: 4617479 (1986-10-01), Hartmann et al.
patent: 4691161 (1987-09-01), Kant et al.
patent: 4697241 (1987-09-01), Lavi
patent: 4724531 (1988-02-01), Angleton et al.
patent: 4736395 (1988-04-01), Sugihara
patent: 4742490 (1988-05-01), Hoffmann
patent: 4758476 (1988-07-01), Birkner
patent: 4768167 (1988-08-01), Yoder

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