Question

what is latch?? why it is a one bit memory cell???​

Answer 1

The memory cell is an electronic circuit that stores one bit of binary information and it must be set to store a logic 1 (high voltage level) and reset to store a logic 0 (low voltage level). ... The SRAM, static ram memory cell is a type of flip-flop circuit, usually implemented using FETs.

....latch is a circuit that has two stable states and can be used to store state information. A flip-flop is a bistable multivibrator.