Sample circuits from

Lecture 07-1 and 07-2

Below are a few circuits that implement latches, flip-flops, and registers, circuits that employ feedback to store bits of state. We also have some examples of sequential circuits that process instruction bits to modify register’s state.

• S’R’ latch
• D flip-flop
• some 1-bit registers
• a 2-bit counter
• 4 x 4-bit register file
• 4-bit arithmetic unit
• a simple instruction processor
• the MINICS2 processor