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Guru3D.com » News » SK Hynix publishes details first DDR5 chip

SK Hynix publishes details first DDR5 chip

by Hilbert Hagedoorn on: 02/22/2019 12:44 PM | source: eetimes.com | 10 comment(s)
SK Hynix publishes details first DDR5 chip

SK Hynix is showing details on their first DDR5 chip. The standard is officially still under development by Jedec, but seems to make an appearance soon enough..

DDR5 — or Double Data Rate 5 — is still under development at the Jedec standards organization. DDR5 offers double the bandwidth and double the density of DDR4 along with delivering improved channel efficiency. The standard was expected to be finalized last year, but remains a work in progress. DDR5 products are now expected to appear beginning late this year report eetimes. Dongkyun Kim, a Hynix chip designer, presented the ISSCC paper Wednesday on the Hynix DDR5 chip, a 16Gb 6.4Gb/s/pin SDRAM that runs at 1.1V and measures 76.22mm2. The device is fabricated in a 1ynm, 4-metal DRAM process.

Kim described the implementation of a modified delay-locked loop (DLL) using a phase rotator and an injection locked oscillator to reduce clock jitter and clock duty cycle distortion associated with operating at higher clock speeds. He also described other techniques used by the Hynix design team, including a write-level training method to offset clock-domain issues associated with higher speeds and a modified forward feedback equalization (FFE) circuit.

Samsung, meanwhile, described a 10nm-class LPDDR5 SDRAM capable of up to 7.5Gb/s at 1.05V.

Jedec announced earlier this week the publication of the LPDDR5 standard, which will eventually operate at an I/O rate of 6400 MT/s, 50% higher than that of the first version of LPDDR4. It is expected to boost memory speed and efficiency for applications including smartphones, tablets and ultra-thin notebooks.



SK Hynix publishes details first DDR5 chip SK Hynix publishes details first DDR5 chip




« Gainward Announces GeForce GTX 1660 Ti Series · SK Hynix publishes details first DDR5 chip · Download: GeForce 419.17 WHQL driver »

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Jumbik
Member



Posts: 47
Joined: 2018-09-13

#5642792 Posted on: 02/22/2019 03:17 PM
When considering new computer, is there something that a general PC gamer (no integrated graphics) would want to wait for in regards to DDR5?

fantaskarsef
Senior Member



Posts: 12154
Joined: 2014-07-21

#5642799 Posted on: 02/22/2019 03:31 PM
Hmmm 1.05V is really low

Undying
Senior Member



Posts: 15196
Joined: 2008-08-28

#5642816 Posted on: 02/22/2019 03:52 PM
Ryzen 7nm+ and ddr5 in 2020.

Stairmand
Senior Member



Posts: 256
Joined: 2007-07-25

#5642975 Posted on: 02/22/2019 06:47 PM
Intel 10nm and DDR5 in 2045 ;)

Koniakki
Senior Member



Posts: 2843
Joined: 2009-09-15

#5643080 Posted on: 02/22/2019 11:17 PM
Intel 10nm+++++++++++ and DDR5 in 2045 ;)


Fixed.

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