Kingston Technology 512MB 400MHz DDR ECC Registered CL3 (3-3-3) DIMM Single Rank, x8 KVR400S8R3A/512 Data Sheet

Memory Module Specifications

512MB 64M x 72-Bit DDR400 CL3
Registered ECC 184-Pin DIMM

Kingston.com

Document No. VALUERAM0420-001.A00    05/17/05

This document describes Kingston’s 64M x 72-bit (512MB) 
DDR400 CL3 SDRAM (Synchronous DRAM) “single rank” 
Registered ECC memory module. The components on this 
module include nine 64M x 8-bit (16M x 8-Bit x 4 bank) 
DDR400 SDRAM in TSOP packages. This 184-pin DIMM  
uses gold contact fingers and requires +2.6V. The electrical 
and mechanical specifications are as follows:

Clock Cycle Time (tCK)  

5ns (min.) / 10ns (max.)

Row Cycle Time (tRC)  

55ns (min.)

Refresh Row Cycle Time (tRFC)  

70ns (min.)

Row Active Time (tRAS)  

40ns (min.) / 70,000ns (max.)

Single Power Supply of  

+2.6V (+/- .1V)

Power  

2.808 W operating

UL Rating  

94 V - 0

Figure 1: KVR400S8R3A/512 184-Pin DIMM

Note: The module defined in this data sheet is one of several configurations available under this part number. While all configurations are compatible, the DRAM 

combination and/or the module height may vary from what is described here.