Cypress - Infineon Technologies Fm24W256-Gtr
F-RAM, NON-VOL, 256KBIT, 1MHZ, SOIC-8; Memory Size:256Kbit; Memory Organisation:32K x 8bit; IC Interface Type:I2C; Clock Frequency:1MHz; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Memory Case Style:SOIC; No. of Pins:8Pins