Description The Hitachi HM628512B is a 4-Mbit static RAM organized 512-kword ×8-bit. It realizes higher density, higher performance and low power consumption by employing 0.35 µm Hi-CMOS process technology. The device, packaged in a 525-mil SOP (foot print pitch width) or 400-mil TSOP TYPE II or 600-mil plastic DIP, is available for high density mounting. The HM628512B is suitable for battery backup system. Features • Single 5 V supply • Access time: 55/70 ns (max) • Power dissipation Active: 50 mW/MHz (typ) Standby: 10 µW (typ) • Completely static memory. No clock or timing strobe required • Equal access and cycle times • Common data input and output: Three state output • Directly TTL compatible: All inputs and outputs • Battery backup operation
Description The Hitachi HM628512C is a 4-Mbit static RAM organized 512-kword ×8-bit. It realizes higher density, higher performance and low power consumption by employing CMOS process technology (6-transistor memory cell). The device, packaged in a 525-mil SOP (foot print pitch width) or 400-mil TSOP TYPE II or 600-mil plastic DIP, is available for high density mounting. The HM628512C is suitable for battery backup system. Features • Single 5 V supply • Access time: 55/70 ns (max) • Power dissipation Active: 10 mW/MHz (typ) Standby: 4 µW (typ) • Completely static memory. No clock or timing strobe required • Equal access and cycle times • Common data input and output: Three state output • Directly TTL compatible: All inputs and outputs • Battery backup operation