DESCRIPTION
The X24321 is a CMOS Serial E2PROM Memory, internally organized 4K x 8. The device features a serial interface and software protocol allowing operation on a simple two wire bus. The bus operates at 400KHz all the way down to 1.8V.

FEATURES
• 1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V Power Supply Operation
• Low Power CMOS
    —Active Read Current Less Than 1mA
    —Active Write Current Less Than 3mA
    —Standby Current Less Than 1µA
• 400KHz Fast Mode 2-Wire Serial Interface
    —Down to 1.8V
    —Schmitt Trigger Input Noise Suppression
    —Output Slope Control for Ground Bounce Noise Elimination
• Internally Organized 4K x 8 Bit
• 32 Byte Page Write Mode
    —Minimizes Total Write Time Per Byte
• Hardware Write Protect
• Bidirectional Data Transfer Protocol
• Self-Timed Write Cycle
    —Typical Write Cycle Time of 5ms
• High Reliability
    —Endurance: 1,000,000 Cycles
    —Data Retention: 100 Years
• 8-Lead SOIC