SR_LATCH {[Subcircuit-label-n] [label-n]}
# Where, the Subcircuit labels are S, R, Q, Q`
# All Subcircuit labels are mandatory except the outputs
# Order is arbitrary
SR_LATCH S s R r Q q Q` q`
# Another example
SR_LATCH S s R r Q q
Latches a single bit Q according to the input levels (active HIGH).