Monday, February 18, 2008

Comparing Various ICs of PC100 SDRAM:

Comparing Various ICs of PC100 SDRAM:

Typically the suffix on the chip part number can be used to compare various modules. However, with the recent hype of PC100 SDRAM, misleading markings have appeared that have confused end users. The following tables compare various models currently marketed as PC100. Note also that according to our tests, modules with identical specifications may actually perform quite differently.

SAMSUNG

Part# Suffix Performance Clock Cycle Time (tCK) Access Time from Clock (tAC) CAS Latency (tCL)
-10 NOT PC100 10ns 7 ns. 3
-GL PC100 10 ns. 6 ns. 3
-GH PC100 10 ns. 6 ns. 2
-8 PC100 8 ns. 6 ns. 3

TOSHIBA

Part# Performance Clock Cycle Time (tCK) Access Time from Clock (tAC) CAS Latency (tCL)
TC59S6408BFT-10 NOT PC100 10 ns. 7 ns. 3
TC59S6408BFT-80 PC100 8 ns. 6 ns. 2

LGS

Part# Suffix Performance Clock Cycle Time (tCK) Access Time from Clock (tAC) CAS Latency (tCL)
-10K NOT PC100 10 ns. 8 ns. 3
-8 PC100 8 ns. 6 ns. 3
-7J* PC100 10 ns. 6 ns. 3

* Note that the LG RAM -7J is a 10ns Cycle Time

MICRON

Part# Suffix Performance Clock Cycle Time (tCK) Access Time from Clock (tAC) CAS Latency (tCL)
-10 NOT PC100 10 ns. 7 ns. 3
-8C PC100 8 ns. 6 ns. 3
-8E PC100 8 ns. 6 ns. 2

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