Paper Info
Title
23.4 An extremely low-standby-power 3.733Gb/s/pin 2Gb LPDDR4 SDRAM for wearable devices.
Abstract
With the growth of wearable devices, such as smart watches and smart glasses, there is an increasing demand for lower power dissipation, to achieve longer battery life with limited battery capacity. Nevertheless, memory bandwidth needs to increase to support high-resolution graphic engines. Since most wearable devices are event driven, they consume a bulk of power in standby mode. Therefore, it is crictical to reduce standby-mode power, as well as improve active-mode power efficiency. However, DRAMu0027s periodic self-refresh, critical for data retention, imposes a lower bound on standby-mode power. This paper presents a 2Gb LPDDR4 SDRAM with 0.15mW standby mode power, which is 66% lower than the standby power for a memory of the same density. The proposed memory also achieves a bandwidth of 3.733Gb/s/pin. To extremely reduce standby mode power, an in-DRAM error-correction-code (ECC) engine is used for self-refresh current reduction. Intensive power gating in deep-power-down (DPD) mode, a temperature controlled internal power generator and an aggressively increased gate length is also used to reduce leakage current. In addition, active-mode power efficiency is improved by using a dual-page-size scheme.
Year
Venue
Field
2017
ISSCC
Electrical efficiency,Dram,Memory bandwidth,Leakage (electronics),Standby power,Computer science,Electronic engineering,Power gating,Bandwidth (signal processing),Battery (electricity),Electrical engineering
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
1
36
Name
Order
Citations
PageRank
Hye-Jung Kwon111.38
Eunsung Seo210.71
Changyong Lee3164.43
Young-Hun Seo400.68
Gong-Heum Han501.01
Hye-Ran Kim6489.04
Jong-Ho Lee719335.44
Min-Su Jang800.34
Sung-Geun Do901.01
Seung-Hyun Cho1001.01
Jae-Koo Park1101.01
Su-Yeon Doo12314.82
jungbum shin13132.04
Sang-Hoon Jung14182.16
Hyoung-Ju Kim1500.34
In-Ho Im1600.34
Beob-Rae Cho1700.68
Jae-Woong Lee1800.34
Jae-Youl Lee1900.68
Ki-Hun Yu2000.68
Hyung-Kyu Kim2100.68
Chul-Hee Jeon2200.68
Hyun-Soo Park2300.68
Sang-Sun Kim2400.68
Seok-Ho Lee2500.34
Jong-Wook Park2611.05
Seung-Sub Lee2700.34
Bo-Tak Lim2800.34
Junyoung Park2936349.48
Yoon-Sik Park30225.67
Hyuk-Jun Kwon3101.01
Seung-Jun Bae3216732.40
Junghwan Choi3327933.08
Kwang-Il Park3400.34
Seong-jin Jang359927.16
Gyo-Young Jin36165.43