Description
The Hitachi HM658512A is a CMOS pseudo static RAM organized 512-kword × 8-bit. It realizes higher density, higher performance and low power consumption by employing 0.8 µm Hi-CMOS process technology.

FEATUREs
• Single 5 V (±10%)
• High speed
    - Access time CE access time: 70/80/100 ns (max)
    - Cycle time Random read/write cycle time: 115/130/160 ns (min)
• Low power
    - Active: 250 mW (typ)
    - Standby: 200 µW (typ)
• Directly TTL compatible All inputs and outputs
• Simple address configuration Non multiplexed address
• Refresh cycle
    - 2048 refresh cycles: 32 ms
• Easy refresh functions Address refresh Automatic refresh Self refresh