An 8-Core MIPS-Compatible Processor in 32/28 nm Bulk CMOS

Author

Weiwu Hu ; Liang Yang ; Baoxia Fan ; Huandong Wang ; Yunji Chen

Author_Institution

State Key Lab. of Comput. Archit., Beijing, China

Volume

49

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

41

Lastpage

49

Abstract

This paper is an extension of Hu et al., ISSCC, 2013, and it introduces the 32/28 nm implementations of Godson-3B1500, which are 8-core MIPS-compatible microprocessors with vector extensions. Godson-3B1500 is fabricated in STMicroelectronics 32/28 nm high-κ metal-gate low-power bulk CMOS with 10 metal layers. It contains 1.14 billion transistors and operates at the frequency of 1.0 GHz to 1.5 GHz with the voltage supply ranging from 1.0 V to 1.3 V. Compared to its predecessor (Hu et al., ISSCC, 2011), Godson-3B1500 brings significant power efficiency improvements with enhanced performance (150GFLOPS@1.2 GHz) and reduced power dissipation (<; 40 W), due to not only technology scaling but also a great deal of design efforts.

Keywords

CMOS integrated circuits; UHF integrated circuits; high-k dielectric thin films; low-power electronics; microprocessor chips; 8-core MIPS-compatible microprocessor; Godson-3B1500; STMicroelectronics; frequency 1.0 GHz to 1.5 GHz; high-κ metal-gate low-power bulk CMOS; reduced power dissipation; size 28 nm; size 32 nm; transistors; voltage 1.0 V to 1.3 V; CMOS integrated circuits; Clocks; Optimization; Phase locked loops; Power dissipation; Switches; Timing; Cache; MIPS; clocking; dynamic frequency scaling; multi-core; physical implementation; power efficiency; power gating; power management; process monitor; processor; register clustering; skew compensation; technology migration; timing optimization; variation detector;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2013.2284649

Filename

6644317