IS24C128A-3WLA3

128Kbit/ 256Kbit 2-WIRE SERIAL CMOS EEPROM

DESCRIPTION

The IS24C128A/256A is an electrically erasable PROM device that uses the standard 2-wire interface for communications. The IS24C128A is 128K-bit 16Kx8 and the IS24C256A is 256K-bit 32Kx8. These EEPROM are offered in a wide operating voltage range of 1.8V to 5.5V to be compatible with most application voltages. ISSI designed the IS24C128A/256A to be an efficient 2-wire EEPROM solution. The devices are packaged in 8-pin PDIP, 8-pin JEDEC SOIC, and 8-pin EIAJ SOIC.

FEATURES

• Two-Wire Serial Interface, I2CTM compatible

   –Bi-directional data transfer protocol

• Wide Voltage Operation

   –Vcc = 1.8V to 5.5V

• 400 KHz 2.5V and 1 MHz 5.0V compatibility

• Low Power CMOS Technology

   –Active Current less than 3 mA 2.5V

   –Standby Current less than 20 µA 2.5V

• Hardware Data Protection

   –Write Protect Pin

• Sequential Read Feature

• Filtered Inputs for Noise Suppression

• Self time write cycle with auto clear

   –5 ms @ 2.5V

• Organization:

   –16Kx8 256 pages of 64 bytes

   –32Kx8 512 pages of 64 bytes

• 64 Byte Page Write Buffer

• High Reliability

   –Endurance: 1,000,000 Cycles

   –Data Retention: 40 Years

• Industrial and Automotive temperature ranges

• 8-pin PDIP, 8-pin JEDEC SOIC, and 8-pin EIAJ SOIC packages

• Lead-free available