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The Memory Chip
It's not surprising to see these memory modules being powered by popular Samsung K4H560838F-TCCD memory chips. This DDR SDRAM chip is easily the most versatile memory chip in the market now.
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Example of the Samsung TCCD memory chip
Not only is it capable of supporting very tight timings at DDR400, it is also very capable of scaling to a much higher memory speed at slightly looser timings.
It is a 256Mbit chip with an access time of 4.0ns. Originally designed to run at 166MHz at CL 2.5, the CD revision chips were rated for 250MHz operation at the timings of 3-4-4. Translated into DDR terms, that's a maximum speed of 500MHz DDR at 3-4-4-8.
Of course, OCZ is not going to follow the official specifications! These chips were specially hand-picked and pre-tested to run at 600MHz DDR at 2.5-4-4-10!
Let's have a look at the official specification of the Samsung K4H560838F-TCCD memory chip.
Memory Chip Specifications
| Chip
Capacity |
256 Mbit |
| Configuration |
8M x 4 banks
x 8 bits |
| SDRAM
Speed Grade |
4.0 ns |
| Rated
Memory Clock |
250 MHz |
| Data
Transfers Per Clock |
2 |
| Supported
CAS Latencies |
2.0,
2.5, 3.0 |
| Refresh
Rate |
7.8 µs |
| I/O Voltage |
2.5 - 2.7
V |
| Operating
Temperature |
0 to 70
°C |
| Power
Dissipation |
NA |
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