Description
Pin name A0 to A9 A0 to A9 I/O1 to I/O4 RAS CAS WE OE VCC VSS Function Address input Refresh address input Data-in/Data-out Row address strobe Column address strobe Read/Write enable Output enable Power (+5 V) Ground
4
Block Diagram
RAS
Row Driver
Row Driver
RAS Control Circuit
256 k Memory Ar
Features
- Single 5 V (±10%).
- High speed.
- Access time 60 ns/70 ns/80 ns (max).
- Low power dissipation.
- Active mode 605 mW/550 mW/495 mW (max).
- Standby mode 11 mW (max) 0.55 mW (max) (L-version).
- Fast page mode capability.
- 1024 refresh cycles : 16 ms 1024 refresh cycles : 128 ms (L-version).
- 3 variations of refresh.
- RAS-only refresh.
- CAS-before-RAS refresh.
- Hidden refresh
HM514400B/BL, HM514400C/CL S.
HM514400B Datasheet
