DESCRIPTION

The X24320 is a CMOS Serial E2PROM, 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 400 KHz all the way down to 1.8V.

FEATURES

• Save Critical Data with Programmable

Block Lock Protection

—Block Lock (0, 1/4, 1/2, or all of E2PROM Array)

—Software Write Protection

—Programmable Hardware Write Protect

• In Circuit Programmable ROM Mode

• 400KHz 2-Wire Serial Interface

—Schmitt Trigger Input Noise Suppression

—Output Slope Control for Ground Bounce

Noise Elimination

• Longer Battery Life With Lower Power

—Active Read Current Less Than 1mA

—Active Write Current Less Than 3mA

—Standby Current Less Than 1µA

• 1.8V to 3.6V, 2.5V to 5.5V and 4.5V to 5.5V

Power Supply Versions

• 32 Word Page Write Mode

—Minimizes Total Write Time Per Word

• Internally Organized 4K x 8

• Bidirectional Data Transfer Protocol

• Self-Timed Write Cycle

—Typical Write Cycle Time of 5ms

• High Reliability

—Endurance: 100,000 Cycles

—Data Retention: 100 Years

• 8-Lead SOIC

• 14-Lead TSSOP

• 8-Lead PDIP