Microchip Technology 24AA256UID-I/SN RoHS: yes Memory Size: 256 kbit Organization: 32 K x 8 Data Retention: 200 years Maximum Clock Frequency: 400 kHz Maximum Operating Current: 400 uA Operating Supply Voltage: 1.7 V to 5.5 V Maximum Operating Temperature: + 85 C Mounting Style: SMD/SMT Package / Case: SOIC-8 Interface Type: I2C Minimum Operating Temperature: - 40 C Operating Current: 400 uA Supply Voltage - Max: 5.5 V Supply Voltage - Min: 1.7 V