4044 CMOS 四三态与非R、S锁存器

The CD4043BC are quad cross-couple 3-STATE CMOS

NOR latches, and the CD4044BC are quad cross-couple 3-

STATE CMOS NAND latches. Each latch has a separate Q

output and individual SET and RESET inputs. There is a

common 3-STATE ENABLE input for all four latches. A

logic “1” on the ENABLE input connects the latch states to

the Q outputs. A logic “0” on the ENABLE input disconnects

the latch states from the Q outputs resulting in an

open circuit condition on the Q output. The 3-STATE feature

allows common bussing of the outputs.