The R1LV0408D is a 4-Mbit static RAM organized 512-kword x 8-bit, fabricated by Renesas's highperformance 0.15m CMOS and TFT technologies. R1LV0408D Series has realized higher density, higher performance and low power consumption. The R1LV0408D Series offers low power standby power dissipation; therefore, it is suitable for battery backup systems. It has packaged in 32-pin SOP, 32pin TSOP II and 32-pin STSOP.