Description
The HM5116405 Series, HM5117405 Series are CMOS dynamic RAMs organized 4,194,304-word × 4-bit. They employ the most advanced CMOS technology for high performance and low power.  The HM5116405 Series, HM5117405 Series offer Extended Data Out (EDO)  Page Mode as a high speed access mode.  They have package variations of standard 26-pin plastic SOJ and standard 26-pin plastic TSOP II.

Features
• Single 5 V (±10%)
• Access time:  50 ns/60 ns/70 ns (max)
• Power dissipation
    - Active mode : 495 mW/440 mW/385 mW (max) (HM5116405 Series)
                           : 550 mW/495 mW/440 mW (max) (HM5117405 Series)
    - Standby mode : 11 mW (max)
                               : 0.83 mW (max) (L-version)
• EDO page mode capability
• Long refresh period
    - 4096 refresh cycles :  64 ms (HM5116405 Series)
                                      :  128 ms (L-version)
    - 2048 refresh cycles :  32 ms (HM5117405 Series)
                                       :  128 ms (L-version)
• 3 variations of refresh
    - RAS-only refresh
    - CAS-before-RAS refresh
    - Hidden refresh
• Battery backup operation (L-version)
• Test function
    - 16-bit parallel test mode