Renesas Launches Super-low Power Consumption 16-bit Microcontroller

2/4/2004 - Renesas Technology Corp. announced the H8/38086F super-low power consumption single-chip 16-bit microcontroller with on-chip flash memory. The device is based on the H8/300H CPU core, offers excellent cost-performance and is the company's first microcontroller to incorporate a high-precision delta sigma type 14-bit A/D converter. This eliminates the need for an external dedicated high-precision A/D conversion IC, reducing end-product costs. The device is suitable for use in industrial measuring instruments such as electric power meters and consumer products such as glucose meters.

The delta sigma type A/D converter is capable of high precision at high resolution, offering an approximately 30-fold improvement in non-linear characteristic error with a 3.0 V full-scale range at 274 mV (typical) compared with the 7.3 mV (typical) of a conventional successive approximation type A/D converter with 10-bit resolution. The converter also features an operating voltage range of 2.2 V to 3.6 V and a conversion time of 64.1 to 1282 ms, enabling it to be used for a wide range of user applications.

Peripheral functions such as a PGA (programmable gain amplifier) and reference voltage band-gap reference circuit enable highly accurate A/D conversion to be achieved. Other on-chip peripheral functions include an LCD controller/driver with a built-in 3 V constant-voltage circuit for display use, an RTC (real-time clock), and an I2C bus interface, allowing end-product implementation with a single chip.

The H8/38086F can operate on a low voltage of just 1.8 V, enabling longer battery life in battery-powered devices. The device also has eight versatile power-down modes, including an active (medium-speed) mode, sub-active mode and watch mode, enabling the user to achieve low power consumption by selecting the most suitable mode for device operation. Power consumption is a low 900 mA (typical) at 1.8 V/1 MHz operation, and ultra-low current dissipation of 0.5 mA (typical) can be achieved in watch mode, in which only the watch function is operated. This makes it possible to greatly extend the standby time of devices in which only the watch function normally operates.

The device is available in three packages: an 80-pin QFP; an 80-pin TQFP; and an 85-pin P-TFLGA. The 85-pin P-TFLGA is an LGA (Land Grid Array) type package that is suitable for high-density mounting and thinner board use, helping to reduce end-product size. Sample shipments will begin in Q2/2004 in Europe.

A simple type E7 emulator is available as a hardware development environment, and the current H8 Family C assembler, C/C++ compiler and linkage editor can be used as a software development environment. The H8/38086F also features instruction compatibility with H8 Family microcontrollers, facilitating the use of existing software.

About Renesas Technology Corp.
Renesas Technology Corp. designs and manufactures highly integrated semiconductor system solutions for mobile, automotive and PC and Audio Visual markets. Established on April 1, 2003 as a joint venture between Hitachi, Ltd. (TSE:6501, NYSE:HIT) and Mitsubishi Electric Corporation (TSE:6503) and headquartered in Tokyo, Japan, Renesas Technology is one of the largest semiconductor companies in the world and the number one microcontroller supplier globally. Besides microcontrollers, Renesas Technology offers system-on-chip devices, Smart Card ICs, mixed-signal products, flash memories, SRAMs and more.

Previous Page | News by Category | News Search

If you found this page useful, bookmark and share it on: