Features
- Host controller bus isolation from the DRAM memory during "save" and "restore" operations between DRAM and NVDIMM non-volatile memory
- AC and DC parameters optimized for DDR4, enabling the highest possible memory channel performance for NVDIMMs even when intermixed with other DIMM types
- 12-bit bus switch/multiplexer to best match the eight DQ pins and four DQS pins coming from each DRAM
- VFBGA 48-pin package for a compact footprint that can replace data buffers on the DIMM for NVMDIMM applications
- Make-before-break circuit to prevent glitches during switching operations
4MX0121VA13 Block Diagram
Description
The 4MX0121V is a 12-bit bus switch/multiplexer (MUX) designed for 2.5V supply voltage operation. The MUX is designed for operation in DDR3 and DDR4 memory bus systems. The 4MX0121V has a 1:2 switch or 2:1 multiplex topology with a 12-bit wide bus.
The 4MX0121V uses a high-speed switch architecture providing high bandwidth, low insertion loss, return loss, and very low propagation delay, allowing for the use in many applications requiring switching or multiplexing of high-speed signals.
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