Static information storage and retrieval – Systems using particular element – Semiconductive
Patent
1991-11-07
1993-06-08
LaRoche, Eugene R.
Static information storage and retrieval
Systems using particular element
Semiconductive
365179, G11C 1134
Patent
active
052185672
ABSTRACT:
A cache memory apparatus made up of a memory cell array (300) and a match detection circuit is disclosed. The match detection circuit produces a detection signal related to whether a search data coincides with a data read out of the memory cell array (300). The match detection circuit applies complementary signals (d, d) of the data read from the memory cell array (300) to the bases of bipolar differential transistors (10, 11), the gates of a pair of field effect transistors (16, 17) are supplied with complementary signals (a, a) of the search data, and the bases of a pair of emitter-follower transistors (12, 13) are connected to the collectors of the bipolar differential transistors (10, 11), thereby producing a detection signal (HITO) from the jointly-connected emitters thereof.
REFERENCES:
patent: 4335449 (1982-06-01), Nokubo
patent: 4829479 (1989-05-01), Mitsumoto et al.
patent: 4866673 (1989-09-01), Higuchi et al.
patent: 4942555 (1990-07-01), Higuchi et al.
Higuchi Hisayuki
Suzuki Makoto
Tachibana Suguru
Hitachi , Ltd.
Kessell Michael C.
LaRoche Eugene R.
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