This document describes ValueRAM's 128M x 64-bit (1GB) DDR2-400 CL3 SDRAM (Synchronous DRAM) 1Rx8 memory module, based on eight 128M x 8-bit FBGA components. This 200-pin SODIMM uses gold contact fingers and requires +1.8V power. The electrical and mechanical specifications are as follows:
The KVR400D2S3/1G is a 1 GB 1Rx8 DDR2‑400 CL3 SODIMM memory module built from eight 128M × 8‑bit FBGA components. It uses a 200‑pin connector with gold contact fingers and operates from a single +1.8 V supply.
The datasheet lists key electrical parameters such as clock cycle time, row cycle time, refresh timings, power consumption and UL rating, and notes that multiple compatible configurations exist under this part number, which may differ in DRAM composition or module height.
| Clock Cycle Time (tCK) | 5 ns min / 8 ns max |
|---|---|
| Row Cycle Time (tRCmin) | 55 ns min |
| Refresh to Active/Refresh | 127.5 ns min |
| Row Active Time (tRASmin) | 40 ns min / 70,000 ns max |
| Supply Voltage | +1.8 V ±0.1 V |
| Power Consumption | 0.925 W (approx.) |
| UL Rating | 94 V - 0 |
It requires a single +1.8 V supply with a tolerance of ±0.1 V.
The module consumes approximately 0.925 W of power.
Yes, the datasheet notes several compatible configurations that may differ in DRAM combination or module height.