OKI Develops Micro Controller Equipped with Voice Synthesis LSI
Succeeds in reducing power consumption by 30% on a single chip
ML610300 Series
Tokyo, Japan, February 13, 2007 -- Oki Electric Industry Co., Ltd. (TSE: 6703) today announced it has developed a single chip micro controller equipped with a high performance 8bit CPU core and a voice synthesis LSI. The voice synthesis LSI included in this ML610300 Series has a high voice quality replaying function. Because it eliminated the high frequency noise element while clarifying the voice waveform, it replays human voice and sound effects precisely. By combining the CPU and voice synthesis LSI in a single chip, OKI has also reduced power consumption by more than 30% and the package size by more than 50%.
"Many products that had used electronic sounds for alarms are now shifting to using human voice guidance, as they must convey accurate information according to the situation. Because our ML610300 Series includes our high voice quality voice synthesis LSI, it is suitable for disaster prevention equipment such as fire alarms as well as home digital appliances," said Masahiko Morioka, President of Silicon Solutions Company at Oki Electric Industry. "In addition, the chip includes a low power consumption mode, making it also suitable for mobile equipment such as crime alarms to notify those in the surrounding area when a crime is committed."
In this micro controller, OKI uses its original OKIADPCM2™, OKI's high sound quality playback method to replay human voice more clearly by reproducing the frequency that people can hear. In this chip, OKI's renowned 8bit RISC CPU nX-U8/100, its original high performance CPU core used in small electronic equipment such as digital cameras, is used to control the voice.
This LSI includes Digital LPF (Low Pass Filter) and a high-resolution 12bit D/A converter specifically used for voice. With these functions, OKI cuts out the static and high frequency noise elements to improve the reproducibility of the voice wave, thus, offering a high-quality voice and sound. The LSI also includes peripheral function such as a serial port, 10bit A/D converter, LED driver port and 8bit timer, which can be used for various applications.
Morioka also commented, "OKI will continue to develop and provide micro controllers that are low in power consumption yet maintain high performance. By enhancing our product line, we aim to offer chips to help create various applications including health care products and digital home appliances."
Two models of the flash ROM-version are available in sample quantities starting today. From May 2007, OKI will start taking orders for custom coding of the mask ROM-version, which is suitable for volume production. OKI aims to ship 1 million units per month for the whole series.
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About Oki Electric Industry Co., Ltd.
Founded in 1881, Oki Electric Industry Co., Ltd. is Japan's first telecommunications manufacturer, with its headquarters in Tokyo, Japan. OKI provides top-quality products, technologies and solutions to its customers through its info-telecom system business, semiconductor business and printer business. All three businesses function as a collective force to create exciting new products and technologies that satisfy a spectrum of customer needs in various markets. Visit Oki's global web site at http://www.oki.com/.
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