CAT24WC129

Preliminary CAT24WC129 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 – Top 1/4 Array Protected When WP at VIH s 100,000 Program/Erase Cycles s 100 Year Data Retention s 8-Pin DIP or 8-Pin SOIC Temperature Ranges DESCRIPTION The CAT24WC129 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 CAT24WC129 features a 64-byte page write buffer. The device operates via the I2C bus serial interface and is available in 8-pin DIP or 8-pin SOIC 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 DOUT ACK SENSE AMPS SHIFT REGISTERS VCC VSS WORD ADDRESS BUFFERS COLUMN DECODERS 512 SOIC Package (J,K) NC NC NC VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA SDA START/STOP LOGIC XDEC WP CONTROL LOGIC 256 E2PROM 256X512 24WC129 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 DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL Ground 24WC129 F02 * Catalyst Semiconductor is licensed by Philips Corporation to carry the I2C Bus Protocol. © 1998 by Catalyst Semiconductor, Inc. Characteristics subject to change wi...