Part HB54A2568KN
Description 256MB DDR SDRAM S.O.DIMM
Manufacturer Elpida Memory
Size 514.63 KB
Elpida Memory
HB54A2568KN

Overview

The HB54A2568KN is Double Data Rate (DDR) SDRAM Module, mounted 256M bits DDR SDRAM (HM5425161BTT) sealed in TSOP package, and 1 piece of serial EEPROM (2k bits EEPROM) for Presence Detect (PD). The HB54A2568KN is organized as 16M × 64 × 2 bank mounted 8 pieces of 256M bits DDR SDRAM.

  • 200-pin socket type package (dual lead out)  Outline: 67.6mm (Length) × 31.75mm (Height) × 3.80mm (Thickness)  Lead pitch: 0.6mm
  • 2.5V power supply (VCC)
  • SSTL-2 interface for all inputs and outputs
  • Clock frequency: 133 MHz (max) (-A75B/B75B) : 100 MHz (max) (-10B)
  • Data inputs, outputs and DM are synchronized with DQS
  • 4 banks can operate simultaneously and independently (Component)
  • Burst read/write operation
  • Programmable burst length: 2, 4, 8  Burst read stop capability
  • Programmable burst sequence  Sequential  Interleave
  • Start addressing capability  Even and Odd