can i use 74hc 4015 and program it with arduino uno like 74hc595 ???!!! and using the built in function shift out with it ............ please help ..thanks in advance!!
Yes. shiftout sends a byte. use 4 bits from each byte, or daisy chain the halves for 8 bits. http://www.nxp.com/documents/data_sheet/74HC_HCT4015_CNV.pdf
The 4015 shift registers don't have a latch input, note, so the outputs will change as a pattern is shifted in. You can chain the 2 4-bit registers by feeding the last bit of one into the D input of the next.