Computer DDR RAM 512MB 184PIN LONG-DIMM is for desktop NON ECC Memory with 2.6V voltage, CAS Latency is 3. It is the first generation memory with wide PCB board. Series numbers are VR400X64C3A/512, VR333X64C3A/512 or VR400X64C3A/512. The chips on this module memory are BGA models or TSOP models working in the same way. It is an old model used in some old models computers with low price. 512MB DDR1 Module is with different frequencies varies from 266mhz, 333mhz or 400mhz working with PC 2100, PC2700, PC3200 computers. They are all full compatible ones, working with intel and AMD motherboards.
The components on this module include sixteen 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:
FEATURES: 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 (IDD0) 5.408 W (operating)
Operating Temperature 0o C to 70o C Storage Temperature -55o C to +150o C UL Rating 94 V to 0