DDR5 Memory Modules ,Default Burst Length Increased to BL16 – Single Burst = 64B of Data

PublishTime： 2022-03-13 Article Source：SMART

SMART's DDR5 Memory Modules is designed to meet increasing needs for efficient performance in a wide range of applications including cloud computing, and data center processing. The DDR5 memory provides developers with twice the performance (4800 to 6400 MT/s) and improved power efficiency in comparison to DDR4 by using an on-DIMM 12V voltage regulator (PMIC) and 1.1 I/O Voltage.

DDR5 also improves scaling performance without degrading channel efficiency at higher speeds. This increased performance is achieved by doubling the burst length to BL16 and bank-count to 32 from 16. For increased reliability and efficiency, a DDR5 DIMM utilizes two 40-bit fully independent sub-channels on the same module. DDR5 memory modules have a maximum die density of 64Gb and hence are capable of having a much higher DIMM storage capacity.

Features

• Command/Address and Control bus is double data rate

• Generates CRC checksum in READ data frames

• Default burst length increased to BL16 – Single burst = 64B of data

• Integrated Temperature Sensor (MR4)

• DDR5 DRAM contain 256 mode registers

Benefits Applications

• Higher Bandwidth, DDR5 initial designs 4800 MHz

• Lower Power

• Better power efficiency and scalability

• Higher memory efficiency, lower latency

• Higher capacity DIMMs

Applications

• High Performance Computing

• Cloud Computing and Storage

• Enterprise Networking

DDR5 Ordering Information

DDR5 Value Memory Modules Ordering Information

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