Author Search Result
[Author] Osamu TOMISAWA(3hit)
| 1-3hit |
Signal Integrity Design and Analysis for a 400 MHz RISC Microcontroller
Akira YAMADA Yasuhiro NUNOMURA Hiroaki SUZUKI Hisakazu SATO Niichi ITOH Tetsuya KAGEMOTO Hironobu ITO Takashi KURAFUJI Nobuharu YOSHIOKA Jingo NAKANISHI Hiromi NOTANI Rei AKIYAMA Atsushi IWABU Tadao YAMANAKA Hidehiro TAKATA Takeshi SHIBAGAKI Takahiko ARAKAWA Hiroshi MAKINO Osamu TOMISAWA Shuhei IWADE
- PAPER-Design Methods and Implementation
- Vol:
- E86-C No:4
- Page(s):
- 635-642
A high-speed 32-bit RISC microcontroller has been developed. In order to realize high-speed operation with minimum hardware resource, we have developed new design and analysis methods such as a clock distribution, a bus-line layout, and an IR drop analysis. As a result, high-speed operation of 400 MHz has been achieved with power dissipation of 0.96 W at 1.8 V.
A Low Standby Current DSP Core Using Improved ABC-MT-CMOS with Charge Pump Circuit
Hiromi NOTANI Masayuki KOYAMA Ryuji MANO Hiroshi MAKINO Yoshio MATSUDA Osamu TOMISAWA Shuhei IWADE
- PAPER-Circuit Design
- Vol:
- E86-C No:4
- Page(s):
- 597-603
A 64-bit 100-MHz multimedia DSP core has been designed using 0.15-µ m CMOS technology. An improved Auto-Backgate-Controlled MT-CMOS (ABC-MT-CMOS) circuit with a charge pump is adopted to suppress the standby leakage current. The dynamic active current of whole chip was simulated to optimize the size of a switch for a power supply control. The DSP core chip, which integrates 300-kgate Logic, 64-kbyte SRAM and charge pump circuit, has 8-µ A standby leakage current. The reduction rate is 1/250.
FOREWORD
- FOREWORD
- Vol:
- E74-C No:11
- Page(s):
- 3747-3748
