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