24WC05J

CAT24WC03/05 2K/4K-Bit Serial EEPROM with Partial Array Write Protection FEATURES s 400 kHz I2C bus compatible* s 1.8 to 5.5 volt operation s Low power CMOS technology s Write protect feature s Self-timed write cycle with auto-clear s 1,000,000 Program/Erase cycles s 100 Year data retention s 8-pin DIP, 8-pin SOIC, 8-lead MSOP and 8-pin TSSOP Package temperature ranges –Top 1/2 array protected when WP at VIH s 16-Byte page write buffer s Commercial, industrial and automotive s "Green" package options available DESCRIPTION The CAT24WC03/05 is a 2K/4K-bit Serial CMOS EEPROM internally organized as 256/512 words of 8 bits each. Catalyst’s advanced CMOS technology substantially reduces device power requirements. The PIN CONFIGURATION DIP Package (P, L, GL) A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA MSOP Package (R, Z, GZ) A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC A0 WP A1 SCL A2 SDA VSS TSSOP Package (U, Y, GY) 1 2 3 4 8 7 6 5 PIN FUNCTIONS Pin Name A0, A1, A2 SDA SCL WP VCC VSS i D c s Serial Clock Ground i t n o A0 A1 A2 VSS 1 2 3 4 8 7 6 5 SOIC Package (J, W, GW) VCC WP SCL SDA u n VCC VSS VCC WP SCL SDA SDA WP CAT24WC03/05 features a 16-byte page write buffer. The device operates via the I2C bus serial interface, has a special write protection feature, and is available in 8pin DIP or 8-pin SOIC packages. BLOCK DIAGRAM EXTERNAL LOAD DOUT ACK SENSE AMPS SHIFT REGISTERS d e a P s t r COLUMN DECODERS WORD ADDRESS BUFFERS START/STOP LOGIC XDEC CONTROL LOGIC E2PROM ...