Client DIMM chipset reaches 7200 MT/s

A memory interface chipset from Rambus enables DDR5 client CSODIMMS and CUDIMMs to operate at data rates of up to 7200 MT/s. This product offering includes a DDR5 client clock driver (CKD) and a serial presence detect (SPD) hub, bringing server-like performance to the client market.

The DDR5 client clock driver, part number DR5CKD1GC0, buffers the clock between the host controller and the DRAMs on DDR5 CUDIMMs and CSODIMMs. It receives up to four differential input clock pairs and supplies up to four differential output clock pairs. The device can operate in single PLL, dual PLL, and PLL bypass modes, supporting clock frequencies from 1600 MHz to 3600 MHz (DDR5-3200 to DDR5-7200). An I2C/I3C sideband bus interface allows device configuration and status monitoring.

Equipped with an internal temperature sensor, the SPD5118-G1B SPD hub senses and reports important data for system configuration and thermal management. The SPD hub contains 1024 bytes of nonvolatile memory arranged as 16 blocks of 64 bytes per block. Each block can be optionally write-protected via software command.

The DR5CKD1GC0 client clock driver is now sampling, while the SPD5118-G1B SPD hub is already in production. To learn more about the DDR5 client DIMM chipset, click here.

Rambus

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