Kingston Technology 512MB 266MHz DDR ECC CL2.5 DIMM KVR266X72C25/512 数据表

Memory Module Specifications

DDR266 SDRAM 184-Pin ECC
Dual In-Line Memory Module (DIMM)

Kingston.com

Document No. VALUERAM0122-001.A00    03/16/01

This document describes ValueRAM’s 64M x 72-bit (512MB), 
CAS Latency 2.5 SDRAM (Synchronous DRAM) DDR266 ECC 
memory module. The components on this module include eigh-
teen 32M x 8-bit (8M x 8-bit x 4 Bank / 133MHz, 7.5ns, CL2.5 
components) SDRAM in TSOP packages. This 184-pin DIMM 
uses gold contact fingers and requires +2.5V. The electrical and 
mechanical specifications are as follows:

Clock Cycle Time (tCK)  

7.5ns (min.) / 15ns (max.)

Row Cycle Time (tRC)  

65ns (min.)

Refresh Row Cycle Time (tRFC)  

75ns (min.)

Row Active Time (tRAS)  

45ns (min.) / 12,000ns (max.)

Single Power Supply of  

+2.5V (+/- .25V)

Power  

4.950 W (operating)

UL Rating  

94 V - 0

Figure 1: KVR266X72C25/512 184-Pin DDR SDRAM Module