notes/education/computer engineering/ECE2700/Sequential Circuits.md

• Output depends on input and past behavior
• Requires use of storage elements

Latches

SR Latch

SR stands for Set/Reset, and functions like so:

• When a signal comes into S, Q_a is set on and stays on until a signal comes into R, at which point the output (Q_a) is reset, back to zero.
• S and R are interchangeable, it just impacts whether Q_a or Q_b is set/reset. Truth table:

S	R	Q_a	Q_b
0	0	0/1	1/0
0	1	0	1
1	0	1	0
1	1	0	0
!