CAT24WC32

w m o c . CAT24WC32/64 U 4 32K/64K-Bit I C Serial t CMOS EEPROM e e FEATURES h S 400 KHza I C bus compatible* t volt read and write operation a5.5 1.8 to Cascadable .D for up to eight devices w page write buffer w 32/64-Byte Self-timed write cycle with auto-clear 2 I I I I I 2 I Commercial, industrial, automotive and extended automotive temperature ranges I Write protection – Entire array protected when WP at VIH I 1,000,000 Program/erase cycles I 100 year data retention I 8-pin DIP or 8-pin SOIC I Schmitt trigger inputs for noise protection DESCRIPTION The CAT24WC32/64 is a 32K/64K-bit Serial CMOS E2PROM internally organized as 4096/8192 words of 8 bits each. Catalyst’s advanced CMOS technology substantially reduces device power requirements. The CAT24WC32/64 features a 32-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, L, GL) A0 A1 A2 VSS 1 2 3 4 8 7 6 5 VCC WP SCL SDA EXTERNAL LOAD SOIC Package (J, W, K, X, GW, GX) A0 A1 A2 VSS 1 2 3 4 8 7 6 PIN FUNCTIONS Pin Name A0, A1, A2 SDA SCL WP VCC VSS w w 5 w VCC WP SCL SDA .D t a S a e h BLOCK DIAGRAM DOUT ACK SENSE AMPS SHIFT REGISTERS t e U 4 .c m o VCC VSS WORD ADDRESS BUFFERS COLUMN DECODERS 256 SDA START/STOP LOGIC E2PROM XDEC 128/256 128/256 X 256 WP CONTROL LOGIC Function DATA IN STORAGE Device Address Inputs Serial Data/Address Serial Clock Write Protect +1.8V to +5.5V Power ...