Comparator

Details Comparator Comparator

1992-09-25

1994-02-22

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Including signal comparison

365190, 307530, G11C 700

Patent

active

052894142

ABSTRACT:
A comparator for comparing the voltage of an address pair signals in complement with the voltages of bit pair signals in complement includes a pair of transistors for receiving the bit pair signals and a pair of MOSFETs for receiving the address pair signals. One transistor and one MOSFET are connected in series to define a first current path and other transistor and other MOSFET are connected in series to define a second current path. When the address signal and the bit signal are the same, both the first and second current paths close, but when they are different; either the first or the second current path opens to permit a current to pass therethrough. By detecting the current in the path, the coincidence and non-coincidence between the address pair signals and bit pair signals are detected.

REFERENCES:
patent: 4041326 (1977-08-01), Robinson
patent: 5134319 (1992-07-01), Yamaguchi
H. Marjima et al; "Circuit Technologies for BiCMOS VLSI's Computer Elements", Proceedings, 1989 IEEE Conference on Computer Design. VLSI in Computers & Processors, pp. 318-322.

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