Oki Introduces New 32-bit Microcontroller Series with ARM® Architecture, Enhancing its General Purpose Microcontroller Family

"Oki has been providing 32-bit ARM-based microcontrollers meeting market requirements for years, thanks to the ARM CPU, which is highly evaluated for its high performance, low power consumption, and effective code characteristics," said Akira Kamo, President of the Silicon Solutions Company at Oki Electric. "By adding the new series, we are able to take significant steps toward strengthening our lineup of 32-bit ARM microcontrollers, which have great potential for use in a wide variety of applications."

Devices in the new series are general-purpose 32-bit microcontrollers, constructed on µPLAT®, Oki's unique integrated platform with ARM7TDMI for development of system-on-chip. The two lines consist of the ML674001 series, comprised of three products: the ML674001, the ML67Q4002, and the ML67Q4003; and the ML675001 series, consisting of the ML675001, the ML67Q5002, and the ML67Q5003.

In order to meet the requirements of a variety of applications, these general-purpose microcontrollers offer abundant functions, including 32-K byte RAMs and timers, PWM (pulse width modulation), UARTs (universal asynchronous receiver transmitters), an I2C (inter integrated circuit), a WDT (watch dog timer), GPIOs (general purpose I/O ports), AD converters, DMA controllers, and an SDRAM controller. One of the unique characteristics of the ML674001 series and the ML675001 series is that ROMs (including Flash memories), SRAMs, DRAMs, or I/O devices can be directly connected to the SDRAM controller in the chip.

The microcontrollers also ensure operation in a wide range of temperature range from -40°C to +85°C, which also makes the chip suitable with a variety of equipment, including PC peripherals, digital home appliances, digital communications equipment, and industrial applications. These devices operate at a maximum frequency of 33 MHz for the ML674001 series and at a maximum frequency of 60 MHz for the ML675001 series. As an 8-K byte unified cache memory is included with the ML675001 series, the chip is capable of high-speed operation. All six microcontrollers are of pin-compatible design, allowing for easier upgrade from the ML674001 series to the ML675001 series with minimum program change and without board layout change, even in cases where customers wish to improve the performance of their existing systems using the ML674001 series.

"As the 32-bit embedded market is expected to grow, Oki further enhances its product offerings, which provide a variety of functions that meet customer demand," said Kamo.

Sales plan for the ML67401 series and the ML67501 series

Features of ML67401 series and ML67501 series

ML675001 series (ML675001, ML67Q5002, and ML67Q5003)

-	Cache memory	8-K byte unified cache
-	Embedded Flash memory	ML675001: (ROM less) ML67Q5002: 256-K byte ML67Q5003: 512-K byte
-	Embedded RAM	32-K byte
-	External memory controller	ROM (FLASH), SRAM, SDRAM, I/O device
-	Other peripheral functions	DMA 2ch, 10-bit AD converter, timer, PWM, UART, I2C, WDT, etc.
-	Power supply voltage	Core part: 2.25V - 2.75V, I/O part: 3.0V - 3.6V
-	Operation frequency	60MHz (maximum)
-	Operating temperature	From -40°C to +85°C
-	Package	144-pin LFBGA (P-LFBGA144-1111-0.8) 144-pin LQFP (LQFP144-P-2020-0.50)

Notes:

• µPLAT is a registered trademark of Oki Electric Industry Co., Ltd. in Japan, Germany and the UK.
• ARM and ARM7TDMI are registered trademarks of ARM Limited. ARM is used to represent ARM Holdings plc (LSE: ARM and Nasdaq: ARMHY); its operating company ARM Limited; and the regional subsidiaries ARM, INC.; ARM KK; ARM Korea LTD.; ARM Taiwan; ARM France SAS; and ARM Consulting (Shanghai) Co Ltd.
• Names of companies and products are trademarks or registered trademarks of the respective companies.

About Oki Electric Industry Co., Ltd.
Founded more than a century ago in 1881, Oki Electric Industry Co., Ltd. is Japan's first telecommunications manufacturer, with its headquarters in Tokyo, Japan. With the corporate vision, "Oki, Network Solutions for a Global Society," Oki Electric provides top-quality products, technologies and solutions to its customers through its telecommunications systems, information systems and electronic devices segments. All three segments are integrated into one effective organization that functions as a collective force to create exciting new products and technologies, including information and telecom converged solutions. Through its business activities, Oki Electric satisfies a spectrum of customer needs in various markets.