what is CFC logic in communication system? where do we
require this for protection system
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Answer Posted / manish
A novel nonvolatile logic style, called complementary
ferroelectric-capacitor (CFC) logic, is proposed for
low-power logic-in-memory VLSI, in which storage elements
are distributed over the logic-circuit plane. Standby
currents in distributed storage elements can be cut off by
using ferroelectric-based nonvolatile storage elements, and
the standby power dissipation can be greatly reduced. Since
the nonvolatile storage and the switching functions are
merged into ferroelectric capacitors by the capacitive
coupling effect, reduction of active device counts can be
achieved. The use of complementary stored data in coupled
ferroelectric capacitors makes it possible to perform a
switching operation with small degradation of the
nonvolatile charge at a low supply voltage. The restore
operation can be performed by only applying the small bias
across the ferroelectric capacitor, which reduces the
dynamic power dissipation. Applying the proposed circuitry
in a fully parallel 32-bit content-addressable memory
results in about 2/3 dynamic power reduction and 1/7700
static power reduction with chip size of 1/3, compared to a
CMOS implementation using 0.6-μm ferroelectric/CMOS.
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