Renesas’ Low Latency High Bandwidth Memory consists of multiple Renesas’ original low latency memory dies and realizes high random access rate and small data granularity as well as high bandwidth. By populating the stack memory along with your accelerator or processor in the same package, you can differentiate your systems with its performance improvement by keeping effective bandwidth high even at non-sequential memory access. The stack memory accelerates datacenter application such as artificial intelligence (Deep Learning, Convolutional Neural Network, etc.), Graph Analytics, Database, Sparse Matrix. It also fits network applications such as table lookup with high search rate, packet buffer, control memory in routers, switches etc.

 

Features

Stacked Memory

The stack memory is integrated with customer’s ASIC, GPU, CPU, NPU, FPGA, AI accelerator on Silicon Interposer in the same package.

 

High Random Access Rate and Small Data Granularity

16 billion random access per second and 16 Byte data granularity realize high effective bandwidth regardless applications.

LLDRAM Access Rate

LLDRAM Data Granularity

Guarantees Tjmax=115 °C

Renesas’ Low Latency DRAM products have long history to meet severe high maximum temperature requirement with long life from network industry customers. The new stack memory also guarantees Tjmax=115 °C and delivers realistic solutions to your package thermal problem.

 

Lineup / Specifications

Density
[Gb]
Config. Burst
Length
Clock Freq.
[MHz]
Data
Width
tRC
[ns]
Access
Rate
[Maps]
Bandwidth
[Gbps]
Data
Granularity
VDDQ
(I/O)
[V]
Status
9Gb/
18Gb
1 2 1,000 x 1,152 12.0 16,000 2,304 16 Byte 1.0 9Gb Sampling
1.2
2 4 1,000 x 1,152 16.0 8,000 2,304 32 Byte 1.0 9Gb Sampling
1.2

 

Contact Us

Please send the e-mail to LowLatencyHBM@lm.renesas.com