CD4042BM

The CD4042BM/CD4042BC quad clocked ``D'' latch is a monolithic complementary MOS (CMOS) integrated circuit constructed with P- and N-channel nhancement mode transistors. The CD4042BM outputs Q and Q either latch or follow the data input depending on the clock level which is pro-grammed by the polarity input. For polarity e 0; the informa- tion present at the data input is transferred to Q and Q during 0 clock level; and for polarity e 1, the transfer occurs during the 1 clock level. When a clock transition occurs (positive for polarity e 0 and negative for polarity e 1), the CD4042BM information present at the input during the clock transition is retained at the outputs until an opposite clock transition oc-curs.