Title :
A Micro-Watt Multi-port Register File with Wide Operating Voltage Range
Author :
Yang, Shyh-Chyi ; Yang, Hao-I ; Hwang, Wei
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
In this paper, a micro-watt multi-port register file with wide operating voltage range for micro-power applications is presented. Multibank architecture for simultaneous access with collision detecting technique is proposed. The architecture has been analyzed under wide operating voltage range between 1 V to 0.25 V with varies process corner. Negative voltage write scheme ensures successful write in deep sub-threshold region. Also, an improved read buffer footer and controllable pre-charge in read scheme are designed. A 4W/4R 16 KB register file is implemented in UMC 90 nm CMOS technology. The simulation results show that the maximum active power of multi-port register file can achieve near 22.3-22.9 uW at 485 KHz under 0.25 V.
Keywords :
CMOS digital integrated circuits; microprocessor chips; CMOS technology; multibank architecture; multiport register file; negative voltage write; operating voltage range; size 90 nm; voltage 0.25 V to 1 V; Body sensor networks; CMOS technology; Digital signal processing; Electronic equipment testing; Energy consumption; Registers; Switches; Switching circuits; VLIW; Voltage;
Conference_Titel :
Memory Technology, Design, and Testing, 2009. MTDT '09. IEEE International Workshop on
Conference_Location :
Hsinchu
Print_ISBN :
978-0-7695-3797-9
DOI :
10.1109/MTDT.2009.16
