24WC128

Preliminary CAT24WC128 128K-Bit I2C Serial CMOS E2PROM FEATURES s 1MHz I2C Bus Compatible* s 1.8 to 6 Volt Operation s Low Power CMOS Technology s 64-Byte Page Write Buffer s Self-Timed Write Cycle with Auto-Clear s Commercial, Industrial and Automotive s Write Protect Feature – Entire Array Protected When WP at VIH s 100,000 Program/Erase Cycles s 100 Year Data Retention s 8-Pin DIP, 8-Pin SOIC or 14-pin TSSOP Temperature Ranges DESCRIPTION The CAT24WC128 is a 128K-bit Serial CMOS E2PROM internally organized as 16384 words of 8 bits each. Catalyst’s advanced CMOS technology substantially reduces device power requirements. The CAT24WC128 features a 64-byte page write buffer. The device operates via the I2C bus serial interface and is available in 8-pin DIP, 8-pin SOIC or 14-pin TSSOP packages. PIN CONFIGURATION DIP Package (P) NC NC NC VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA BLOCK DIAGRAM EXTERNAL LOAD TSSOP Package (U14) NC NC NC NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC WP NC NC NC SCL SDA DOUT ACK VCC VSS WORD ADDRESS BUFFERS SENSE AMPS SHIFT REGISTERS COLUMN DECODERS 512 SOIC Package (J,K) NC NC NC VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA NC NC VSS SDA START/STOP LOGIC XDEC WP CONTROL LOGIC 256 E2PROM 256X512 24WC128 F01 PIN FUNCTIONS Pin Name SDA SCL WP VCC VSS Function Serial Data/Address Serial Clock Write Protect +1.8V to +6V Power Supply SCL STATE COUNTERS HIGH VOLTAGE/ TIMING CONTROL DATA IN STORAGE Ground 24WC128 F02 * Catalyst Semiconductor is licensed by ...