Memory Interconnect
PCIe® Interconnect
CXL® Interconnect
Contact Us
M88MX5891/5851 is a Type 3 Compute Express Link® (CXL®) Memory eXpander Controller (MXC), which enables high-speed and low-latency interconnect between the CPU and CXL-based devices.
The MXC integrates a CXL controller, a DDR controller, a RISC-V microprocessor, and rich peripheral interfaces such as SMBus, I3C/I²C, and SPI in a single chip. It is compliant with JEDEC DDR4/DDR5 standards and CXL 2.0/PCIe® 5.0 specifications.
As the key component for memory expansion and pooling, the MXC is intended for use in add-in cards (AICs) and EDSFF memory modules, enabling dramatically scaling of memory capacity and bandwidth to meet the ever-growing demand from data-intensive applications.
-
CXL Type 3 Memory eXpander ControllerIntegrated CXL controller, DDR controller and RISC-V micro-processor
On-chip PVT sensor
SMBus, I3C/I²C, and SPI interfaces
Green package: 767-ball FCCSP; 716-ball FCCSP
-
CXL Controller
Compliant with CXL 1.1 and CXL 2.0 specifications, supporting CXL.mem and CXL.io protocols
Designed based on PCIe 5.0 interface, supporting up to 32 GT/s data rate (x8 port)
Rich RAS features
-
DDR Controller
Compliant with JEDEC DDR4/DDR5 standards
Support DDR4/DDR5 UDIMM/RDIMM and DRAM on-board
Low power consumption
Optimized DDR I/O equalization and programmable I/O impedance
Add-in cards or EDSFF memory modules for memory expansion, memory pooling, etc.
Data-intensive and compute-intensive applications, such as in-memory database, cloud infrastructure, and emerging data center workloads
