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32bit MCUs offer up to 1MB Flash memory

Posted: 27 May 2011 ?? ?Print Version ?Bookmark and Share

Keywords:MCU? 32bit? flash memory? portable applications?

Renesas Electronics America Inc. releases eight 32bit V850 MCUs in their existing V850 J Series. These new V850ES/Jx3-L MCUs are an extension of the successful low-power V850ES/Jx3-L 32bit MCUs that were introduced in early 2010 and are designed for low-power, portable applications with high-density memory from 768KB flash/80KB RAM to 1MB flash/80KB RAM to support increasing memory demand.

The new MCUs boast industry-leading, low power consumption with built-in large capacity memory, and four of these high memory-density MCUs are equipped with a USB 2.0 function interface to support communications. To demonstrate the low-power capability, Renesas Electronics America is offering a give-away promotion of a V850ES/Jx3-L Low Power Demonstrator Kit, which enables users to measure current consumption of different MCU operation modes and illustrates many features supporting low-power system design.

Targeted for applications such as portable healthcare equipment and healthcare systems, especially portable measurement and monitor devices such as blood glucose meters, can take advantage of the low power to extend battery life and utilize the large flash memory for data storage and increasing application needs. USB support enables healthcare systems to support patient-doctor information exchanges, like what the Continua Alliance standard provides. Moreover, the 32bit processing power can support graphic computation for different displays from segmented LCD to dot-matrix and OLED.

The high-density Flash memory eliminates design dilemma as Renesas Electronics' V850 MCUs with up to 1MB Flash memory offers support for many applications without resorting to external memory.

In conjunction with the product announcement, Renesas Electronics America is offering a give-away promotion for a V850ES/Jx3-L Low Power Demonstrator. This kit utilizes a V850ES/JG3-L MCU with 512KB of Flash memory to provide a platform that demonstrates the different standby modes. The kit supports current consumption measurements with the use of an ampere meter, and also demonstrates RAM retention and real-time clock operation in the lowest power mode. To register for a free kit (while supplies last) and to find more information about the give-away promotion, visit Renesas' website.

Key features of the V850ES/JG3-L MCUs include large-capacity on-chip memory that contributes to a reduction in system costs by eliminating external memory. These new devices achieve a power consumption of 0.9mW per 1MIPS at 20MHz. Furthermore, while providing improved peripheral functionality, such as USB 2.0 and real-time counter functions, these devices achieve a low current consumption of 0.7?A (with only the real-time counter operating) in standby mode. These MCUs also support 2.0V low-voltage operations when operating at 2.5MHz, contributing to longer battery operating times in portable and battery-operated electronic equipment.

Samples of the V850ES/JG3-L MCUs are available now with pricing dependent on memory capacity and package type. For example, an MCU equipped in a 100-pin LQFP package with 1MB of flash memory in 10K resell units is priced at US$6.38 per unit. Mass production is scheduled to begin in July 2011 and is expected to reach a combined volume of 3,000,000 units per month with all eight products by FY2012. Pricing and availability are subject to change without notice.

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