IS34C02

IS34C02 2K-bit 2-WIRE SERIAL CMOS EEPROM with Permanent Write-Protection ISSI DESCRIPTION ® ADVANCED INFORMATION JANUARY 2005 FEATURES Two-Wire Serial Interface, I2CTM compatible – Bidirectional data transfer protocol – 400 kHz (2.5V) and 1 MHz (5.0V) compatibility Organization: – 256 x 8-bit Data Protection Features – Write Protect Pin – Permanent Software Protection 16-Byte Page Write Buffer – Partial Page-writes permitted Low Power CMOS Technology – Active Current less than 2 mA (5V) – Standby Current less than 6 µA (5V) – Standby Current less than 2 µA (2.5V) Low Voltage Operation – IS34C02-2: Vcc = 1.8V to 5.5V – IS34C02-3: Vcc = 2.5V to 5.5V Random or Sequential Read Modes Filtered Inputs for Noise Suppression Self timed Write cycle with auto clear – 5 ms @ 2.5V High Reliability – Endurance: 1,000,000 Cycles – Data Retention: 40 Years Automotive and Industrial temperature ranges 8-pin SOIC, 8-pin TSSOP, and 8-pin MSOP Lead-free available The IS34C02 is an electrically erasable PROM device that uses the standard 2-wire interface for communications. The IS34C02 contains a memory array of 2,048-bits (256K x 8), and is further subdivided into 16 pages of 16 bytes each for page-write mode. The software write-protection feature is initiated with a unique irreversible instruction. After this command is transmitted, the first 128 bytes of the array become permanently read-only. This feature is popular in applications like DRAM DIMMs to retain DRAM...