CAT34WC02

CAT34WC02 2K-Bit I2C Serial EEPROM, Serial Presence Detect FEATURES s 400 KHz (5V) and 100 KHz (1.8V) I2C bus s Self-timed write cycle with auto-clear s Software write protection for lower 128 bytes s 1,000,000 program/erase cycles s 100 year data retention s 8-pin DIP, 8-pin SOIC and 8-pin TSSOP packages s 256 x 8 memory organization s Hardware write protect compatible s 1.8 to 6.0 volt operation s Low power CMOS technology – zero standby current s 16-byte page write buffer s Commercial, industrial and automotive temperature ranges DESCRIPTION The CAT34WC02 is a 2K-bit Serial CMOS EEPROM internally organized as 256 words of 8 bits each. Catalyst’s advanced CMOS technology substantially reduces device power requirements. The CAT34WC02 features a 16-byte page write buffer. The device operates via the I2C bus serial interface and is available in 8-pin DIP, 8pin SOIC or 8-pin TSSOP packages. PIN CONFIGURATION DIP Package (P) A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA A0 A1 A2 VSS BLOCK DIAGRAM SOIC Package (J) 1 2 3 4 8 7 6 5 VCC WP SCL SDA EXTERNAL LOAD DOUT ACK VCC VSS WORD ADDRESS BUFFERS COLUMN DECODERS SENSE AMPS SHIFT REGISTERS TSSOP Package (U) A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA SDA START/STOP LOGIC XDEC WP CONTROL LOGIC E2PROM PIN FUNCTIONS Pin Name A0, A1, A2 SDA SCL WP VCC VSS Function Device Address Inputs Serial Data/Address Serial Clock Write Protect +1.8V to +6.0V Power Supply Ground SCL A0 A1 A2 STATE COUNTERS SLAVE ADDRESS COMPARATORS HIGH VO...