Using Multi-Channel Connections for Optimized LPDDR4 Power & Performance

LPDDR4, the latest double data rate synchronous DRAM for mobile applications, includes a number of features that enable SoC design teams to reduce power consumption of discrete DRAM in mobile devices. Desktop devices like PCs and servers commonly utilize DDR devices mounted on dual inline memory modules (DIMM) hosted on 64-bit wide buses. This board-level solution allows field-upgradeable DRAM ... » read more

Optimizing LPDDR4 Performance And Power With Multi-Channel Architectures

PDDR4 offers huge bandwidth in a physically small PCB area and volume; up to 25.6 GByte/s of bandwidth at a 3,200 Mbps data rate from a single 15mmx15mm LPDDR4 package when two dies are packaged together. LPDDR4 builds on the success of LPDDR2 and LPDDR3 by adding new features and introducing a major architectural change. This white paper explains how LPDDR4 is different from all previous JEDEC... » read more

Inside The 5G Smartphone

Amid a slowdown in the cell phone business, the market is heating up for perhaps the next big thing in wireless—5th generation mobile networks or 5G. In fact, major carriers, chipmakers and telecom equipment vendors are all rushing to get a piece of the action in 5G, which is the follow-on to the current wireless standard known as 4G or long-term evolution (LTE). Intel, Samsung and Qualcom... » read more

The Week In Review: Design/IoT

Mergers/Acquisitions Lattice Semiconductor agreed to pay $600 million for Silicon Image, which makes connectivity solutions for high-definition content for mobile and consumer electronics. Lattice already makes programmable connectivity solutions, so the combined IP portfolio is expected to strengthen its position in wired and wireless markets. Tools Cadence expanded the tool portfolio it ... » read more

Blog Review: Jan. 28

Mentor Graphics' John Day points to the growing presence of automakers in Silicon Valley. The latest émigré is Ford, which is setting up a research and innovation center in Palo Alto, but the company is hardly alone. Electronics could well become the real differentiators in vehicles. ARM's Andrew Sloss points to an intriguing relationship between data and economic growth—not to mention m... » read more

Higher Frequencies Mean More Memory

As SoCs get more complex, whether due to higher frequencies or adding more functionality, there is a spillover effect on bandwidth, [getkc id="22" kc_name="memory"] and power. There is no simple way to just turn up the clock frequency in a complex [getkc id="81" kc_name="SoC"]. That relatively straightforward objective will likely require more power domains, more cores, more ways to move sig... » read more

Digital TV: The Need For Speed

With CES just finishing up, I wanted to take a closer look at the changes in the digital TV market, and what affect those changes have on high performance memory and serial links. Just five years ago, the United States made the transition from analog to digital television. At the time, standard definition digital TV was common, with screens that contained 345 thousand pixels per frame. Recen... » read more

The Week In Review: Design

Legal Mentor Graphics won a $36 million award plus royalties stemming from a patent infringement case involving EVE (Emulation & Verification Engineering), an emulation company that was purchased by Synopsys in 2012. A U.S. District Court jury in the District of Oregon found that EVE had directly and indirectly infringed on a 2001 patent entitled "Method and apparatus for gate-level simula... » read more

Memory Directions Uncertain

Semiconductor Engineering sat down with a panel of experts to find out what is happening in world of memories. Taking part in the discussion are [getperson id="11073" comment="Charlie Cheng"], chief executive officer at [getentity id="22135" e_name="Kilopass Technology"]; Navraj Nandra, senior director of marketing for Analog/Mixed signal IP, embedded memories and logic libraries at [getentity ... » read more

What’s Next For Memory?

Apple, Samsung and others are developing the next wave of smartphones and tablets. OEMs want to integrate new memory schemes that provide more bandwidth at lower power. But there are some challenges in the arena that are prompting memory makers to rethink their mobile DRAM roadmaps. The conventional wisdom was that memory makers would ship mobile DRAMs based on the new LPDDR4 interface stand... » read more