OKI Develops 8-bit Flash Microcontroller, the Lowest Power Level in the Industry

Operates at 1.1V Using OKI's Proprietary Technology
TOKYO--(Business Wire)--
Oki Electric Industry Co., Ltd. (TOKYO:6703) today announced the
development of "ML610Q431/Q432," an 8-bit flash microcontroller (MCU)
that incorporates 1.1V flash memory based on OKI's proprietary
low-power technology and a fine power-management function, achieving
one of the lowest power operation in the industry. The ML610Q431/Q432
includes a highly efficient RISC-type CPU, an LCD driver, two types of
A/D converters, and on-chip debugging functions. It is best suited for
handheld devices with LCDs such as watches, thermometers and
pedometers as they become smaller and require shorter time-to-market.
Sample shipment is scheduled to start from April 2008, and volume
shipment from June.

"With OKI's ultra low power, high-performance and multifunctional
8-bit flash microcontroller, we believe handheld device manufacturers
will be able to reduce the size of handheld devices and achieve
shorter time-to-market," said Masahiko Morioka, President of Silicon
Solution Company at OKI. "We will continue to expand our ultra low
power 8-bit flash MCU lineup to be used in various applications."

- Built-in flash memory

Based on OKI's proprietary low-power technology, the
ML610Q431/Q432 operates over a wide range of voltage (from a low 1.1V
to 3.6V), and achieves a current consumption that is equivalent to
MCUs with built-in mask ROM. Therefore, while keeping the advantage of
flash memory MCU's short development and manufacturing time, the
ML610Q431/Q432 can simultaneously enable use of smaller and lighter
batteries because of its low power consumption.

- Detailed power-management function

The ML610Q431/Q432 includes three power-management functions: HALT
mode, STOP mode and triple clock mode. HALT mode suspends CPU
operation and STOP mode suspends peripheral circuit operations in
addition to CPU operation. The ML610Q431/Q432 can keep the power low
even when CPU is operating because it has triple clocks and users can
select a clock from among the frequencies of 32.768kHz, 500kHz, or
4.096MHz. In addition, low power consumption enables longer battery
life and contributes to smaller battery, resulting in smaller and
lighter devices.

- Highly efficient RISC-type CPU

The ML610Q431/Q432 uses OKI's proprietary CPU, "nX-U8/100," based
on RISC architecture, which is well-established in the market, having
shipped a total of 60 million units. The CPU can offer high
performance while requiring only low power because it executes most
instructions in a single machine cycle with the three-stage pipeline
and has a bit operation instruction, which enables high-speed access
to the memory, and a multiplication/division instruction.

- LCD driver

ML610Q432 offers 1536 dot (64 segx24 com) resolution while
ML610Q431 offers 1024 dot (64 segx16 com) resolution, both including a
charge pump circuit. Because no external driver is required, it
enables smaller devices.

- Two types of A/D converter

The ML610Q431/Q432 includes two types of A/D converters: a 24-bit
RC oscillator type and a 12-bit successive approximation type. It can
make various measurements by connecting it to a thermohygrometer
sensor that changes resistance and capacitance, or a pressure sensor
that changes output voltage. Because no external A/D converter is
required, it enables smaller devices.

- On-chip debugging

On-chip debugging emulator (product name: uEASE), helps reduce
development time for the device. It enables users to debug software
programs and erase or write them into the flash memory when mounted on
the users' circuit board.

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 www.oki.com/.

Notes:

-- Names of companies and products are trademarks or registered
trademarks of the respective companies and organizations.

Oki Electric Industry Co., Ltd.
For Europe and Americas:
Naomi Takeuchi, +1-408-737-6279
Public Relations Division
press@oki.com
For Asia and Other Areas:
Akiko Horiguchi, +81-3-3580-8950
Public Relations Division
press@oki.com

Copyright Business Wire 2008