HEF4541BT,512IC OSC PROG TIMER 36MHZ 14SOIC|NXP SEMICONDUCTORS|Lead free|RoHS Compliant CD4541BM HEF4541BT,653IC OSC PROG TIMER 36MHZ 14SOIC|NXP SEMICONDUCTORS|Lead free|RoHS Compliant CD4541BM96 CD4541BM96