AT24C256/UI27A AT24C256-1.8 AT24C256-1.8-PI AT24C256-10CI-1.8 AT24C256-10CI-2.7 AT24C256-10PC AT24C256-10PC-1.8 AT24C256-10PC-2.7 AT24C256-10PI AT24C256-10PI/10SI/10TI