AT24C256W-SQ-2.7 AT24C256W-SU2.7 AT24C256WSU27 AT24C256W-SU27 AT24C257N-10SI-2.7 AT24C28N-10SI-1.8 AT24C2N-10SI-1.8 AT24C32 AT24C32 SOP AT24C32 SI