Description

DDR2 memory chips will be in BGA chip packages, and will incorporate On-Die Termination (ODT) to minimize memory signal reflections at high speeds, thereby improving timing margins. In addition, DDR2 memory chips will come in capacities up to 1 Gigabits, allowing for higher-capacity modules. To prevent accidental insertion into an incompatible motherboard, DDR2 modules have a unique key or “notch” in their connector that must match the memory socket.