HM5117405 Overview
The Hitachi 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.
HM5117405 Key Features
- Single 5 V (±10%)
- Access time: 50 ns/60 ns/70 ns (max)
- EDO page mode capability
- Long refresh period 4096 refresh cycles : 64 ms (HM5116405 Series) : 128 ms (L-version) 2048 refresh cycles : 32 ms
- 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
- I/O1 to I/O4 RAS CAS WE OE VCC VSS Row/Refresh address Column address A0 to A11 A0 to A9