X24042

Preliminary Information Pin 7 No Connect X24042 4K X24042 Serial E2PROM DESCRIPTION 512 x 8 Bit TYPICAL FEATURES 2.7V to 5.5V Power Supply Low Power CMOS —Active Read Current Less Than 1 mA —Active Write Current Less Than 3 mA —Standby Current Less Than 50 µA Internally Organized 512 x 8 2 Wire Serial Interface —Bidirectional Data Transfer Protocol Sixteen Byte Page Write Mode —Minimizes Total Write Time Per Byte Self Timed Write Cycle —Typical Write Cycle Time of 5 ms High Reliability —Endurance: 100,000 Cycles —Data Retention: 100 Years 8 Pin Mini-DlP and 8 Pin SOIC Packages The X24042 is a CMOS 4,096 bit serial E2PROM, internally organized 512 x 8. The X24042 features a serial interface and software protocol allowing operation on a simple two wire bus. The X24042 is fabricated with Xicor’s advanced CMOS Textured Poly Floating Gate Technology. The X24042 utilizes Xicor’s proprietary Direct WriteTM cell providing a minimum endurance of 100,000 cycles and a minimum data retention of 100 years. FUNCTIONAL DIAGRAM (8) VCC (4) VSS (5) SDA START STOP LOGIC CONTROL LOGIC SLAVE ADDRESS REGISTER +COMPARATOR XDEC E2PROM 32 X 128 START CYCLE H.V. GENERATION TIMING & CONTROL (6) SCL (3) A2 (2) A1 (1) A0 LOAD INC WORD ADDRESS COUNTER R/W YDEC 8 CK PIN DOUT ACK 3849 FHD F01 DATA REGISTER DOUT © Xicor, 1991 Patents Pending 3849-1 1 Characteristics subject to change without notice X24042 PIN DESCRIPTIONS Serial Clock (SCL) The SCL input is used to clock...