A 55nm 1-to-8 bit Configurable 6T SRAM based Computing-in-Memory Unit-Macro for CNN-based AI Edge Processors - Details

author：

Indexed by：

Scopus

Abstract：

This　work　presents　a　1-to-8　bit　configurable　SRAM　CIM　unit-macro　using　(1)　a　hybrid　structure　combining　6T-SRAM　in-memory　binary　product-sum　(IMBPS)　with　digital　near-memory-computing　multi-bit-PS　accumulation　(DNMPSA)　to　achieve　high　read　accuracy　and　compact　area,　(2)　a　column-based　place-value-grouped　weight　mapping　(CPVGWM)　and　serial-bit　input　mapping　(SBIN)　scheme　to　facilitate　reconfiguration　and　increase　array　efficiency　for　various　input/weight　precision.　A　4Kb　configurable　6T-SRAM　CIM　unit-macro　was　fabricated　using　a　55nm　CMOS　process　and　foundry　6T　cells.　The　resulting　macro　achieved　3.5ns　access　time　with　3b　PS　outputs　and　gained　a　3.91-50x　improvement　in　figure-of-merit,　compared　to　previous　SRAM-CIMs.　©　2019　IEEE.

Keyword：

AI edge processor; CIM; CNN; SRAM

Community：

[ 1 ] [Zhang, Z.]National Tsing Hua University, Hsinchu, Taiwan
[ 2 ] [Zhang, Z.]Fuzhou University, Fuzhou, China
[ 3 ] [Chen, J.-J.]National Tsing Hua University, Hsinchu, Taiwan
[ 4 ] [Si, X.]National Tsing Hua University, Hsinchu, Taiwan
[ 5 ] [Tu, Y.-N.]National Tsing Hua University, Hsinchu, Taiwan
[ 6 ] [Su, J.-W.]National Tsing Hua University, Hsinchu, Taiwan
[ 7 ] [Su, J.-W.]Industrial Technology Research Institute, Hsinchu, Taiwan
[ 8 ] [Huang, W.-H.]National Tsing Hua University, Hsinchu, Taiwan
[ 9 ] [Wang, J.-H.]National Tsing Hua University, Hsinchu, Taiwan
[ 10 ] [Wei, W.-C.]National Tsing Hua University, Hsinchu, Taiwan
[ 11 ] [Chiu, Y.-C.]National Tsing Hua University, Hsinchu, Taiwan
[ 12 ] [Hong, J.-M.]National Tsing Hua University, Hsinchu, Taiwan
[ 13 ] [Sheu, S.-S.]Industrial Technology Research Institute, Hsinchu, Taiwan
[ 14 ] [Li, S.-H.]Industrial Technology Research Institute, Hsinchu, Taiwan
[ 15 ] [Liu, R.-S.]National Tsing Hua University, Hsinchu, Taiwan
[ 16 ] [Hsieh, C.-C.]National Tsing Hua University, Hsinchu, Taiwan
[ 17 ] [Tang, K.-T.]National Tsing Hua University, Hsinchu, Taiwan
[ 18 ] [Chang, M.-F.]National Tsing Hua University, Hsinchu, Taiwan

Reprint 's Address：

Email：

Show more details

Related Keywords：

Source ：

Proceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019

Year： 2019

Page： 217-218

Language： English

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 3

Affiliated Colleges：

Get Fulltext

DOI Library Discovery Baidu Scholar Search SCOPUS

Type
Departments

All Years Choose Year From to