Data Sheet R1EX24002ASAS0I R1EX24002ATAS0I R10DS0221EJ0200 Two-wire serial interface Rev.2.00 2k EEPROM (256-word x 8-bit) Nov 07, 2013 Description R1EX24xxx series are two-wire serial interface EEPROM (Electrically Erasable and Programmable ROM). They realize high speed, low power consumption and a high level of reliability by employing advanced MONOS memory technology and CMOS process and low voltage circuitry technology. They also have a 16-byte page programming function to make their write operation faster. Features Single supply: 1.8 V to 5.5 V 2 Two-wire serial interface (I C serial bus) Clock frequency: 400 kHz Power dissipation: Standby: 2.0 A (max) Active (Read): 1.0 mA (max) Active (Write): 2.5 mA (max) Automatic page write: 16-byte/page Write cycle time: 5 ms Endurance: 1,000k or more Cycles 25C Data retention: 100 or more Years 25C Small size packages: SOP-8pin, TSSOP-8pin Shipping tape and reel TSSOP 8-pin: 3,000 IC/reel SOP 8-pin: 2,500 IC/reel Temperature range: 40 to +85C Lead free products. ( U0, S0) Halogen free products. ( U0) R10DS0221EJ0200 Rev.2.00 Page 1 of 16 Nov 07, 2013 R1EX24002ASAS0I/R1EX24002ATAS0I Ordering Information Internal Package Shipping tape Orderable Part Numbers organization and reel Halogen free R1EX24002ASAS0I U0 2k bit 150 mil 8-pin plastic SOP 2,500 IC/reel PRSP0008DF-B (FP-8DBV) (256 8-bit) R1EX24002ASAS0I S0 Lead free R1EX24002ATAS0I U0 2k bit 8-pin plastic TSSOP 3,000 IC/reel PTSP0008JC-B (TTP-8DAV) (256 8-bit) R1EX24002ATAS0I S0 Lead free Pin Arrangement 8-pin SOP/8-pin TSSOP A0 1 8 V CC 2 A1 7 WP A2 3 6 SCL V 4 5 SDA SS (Top view) Pin Description Pin name Function A0 to A2 Device address SCL Serial clock input SDA Serial data input/output WP Write protect V Power supply CC V Ground SS Block Diagram Voltage detector V CC High voltage generator V SS WP Control Memory array logic A0, A1, A2 SCL Y-select & Sense amp. SDA Serial-parallel converter R10DS0221EJ0200 Rev.2.00 Page 2 of 16 Nov 07, 2013 Address generator Y decoder X decoder