The selected pair of crosspoints in the CD22102 is turned on by applying a logic ONE to the KA (set) input while a logic ZERO is on the KB input, and turned off by applying a logic ONE to the KB (reset) input while a logic ZERO is on the KA input. In this respect, the control latches of the CD22102 are similar to SET/RESET flip-flops. They differ, however, in that the simultaneous application of ONEs to the KA and KB inputs turns off (resets) all crosspoints. All crosspoints in both devices must be turned off as VDD is applied.