Renesas offers microcontrollers for inexpensive embedded systems designs

SAN JOSE, Calif. -- 13 Nov 2007. Renesas Technology America Inc. in San Jose, Calif., is offering the H8S/Tiny series of 16-bit microcontrollers for low-cost embedded system designs.

Nov 13th, 2007

SAN JOSE, Calif. -- 13 Nov 2007. Renesas Technology America Inc. in San Jose, Calif., is offering the H8S/Tiny series of 16-bit microcontrollers for low-cost embedded system designs.

The H8S/Tiny series has 24 devices in three product groups: the 64-pin devices in the H8S/20103 group and the 80-pin devices in the H8S/20203 and H8S/20223 groups. Applications include industrial control, white goods, and building automation equipment.

There are a total of 24 devices in the H8S/Tiny series in three product groups: the 64-pin devices in the H8S/20103 group and the 80-pin devices in the H8S/20203 and H8S/20223 groups. The microcontrollers maintain compatibility with the H8/Tiny devices, which helps users upgrade.

"The H8S/Tiny series microcontrollers deliver significantly more performance and functionality than our previous H8/Tiny chips," says Ritesh Tyagi, director of the system LSI business unit at Renesas Technology. "Importantly, they incorporate the 16-bit H8S/2000 CPU core, a single-cycle execution CISC architecture that runs complex instructions efficiently. They also have up to 128 kilobytes of on-chip flash memory, plus eight kilobytes of extended endurance data flash memory for replacing external EEPROM."

One peripheral function that the microcontrollers provides is an event link controller, which can boost real-time processing performance. For example, in a typical microcontroller device, real-time events or interrupts are handled by the CPU directly. In contrast, the event link controller allows H8S/Tiny devices to process interrupt requests and trigger multiple peripheral blocks in sequence without using the CPU, so more CPU cycles become available for application processing.

The devices also have a data transfer controller (DTC) that can carry out data transfer operations with no CPU intervention. By using both of these functions, for example, plus a timer and a serial port, A/D conversion values can be periodically transferred to an external device via a serial interface without slowing down program execution. This approach maximizes overall performance or makes it possible to operate the microcontroller at a lower frequency to reduce current consumption.

For more information contact Renesas Technology online at www.renesas.com.

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