The AS6C4008-55ZIN is a 512k x 8-bit low power CMOS Static Random Access Memory (SRAM) organized as 524288 words by 8 bits. It is fabricated using very high performance, high reliability CMOS technology. Its standby current is stable within the range of operating temperature. The AS6C4008 is well designed for very low power system applications and particularly well suited for battery back-up non -volatile memory application. The AS6C4008 operates from a single power supply of 2.7 to 5.5V.