Top Stories Atmel 80C51 Microcontroller with Flash memory New 80C51 series microcontroller with Flash Memory Atmel Corporation has announced the expansion of its FLASH microcontrollers offering by adding two new 80C51 microcontrollers, featuring up to 32-Kbyte FLASH memory with a highly flexible In-system Programming (ISP) capability. The T89C51RB2 with 16-Kbyte Flash and the T89C51RC2 with 32-Kbyte Flash are based on the well known 80C51 architecture and support all the features of the Atmel TS8xC51Rx2 with 256 bytes of internal RAM plus 1024 bytes of XRAM. The on-chip FLASH memory with boot loader can be programmed by byte or by block, either in parallel or in serial mode. Both devices offer easy-to-implement In-system Programming capability either through UART or SPI serial communication interfaces, using standard 3 or 5 Volts supply. The program can be loaded or updated without removing the device from the board, providing a significant flexibility to system designers. With ISP even flash program memory can be reconfigured while the application is running, allowing remote diagnosis, upgrade and enhancements in the field. The T89C51RB2 and the T89C51RC2 feature a Programmable Counter Array (PCA), a hardware watchdog timer, power control modes, and also take advantage of the high-speed core (X2 mode) which can double internal frequency for CPU and peripherals (upon selection). According to Manish Vadher, Marketing Director for Standard Microcontrollers at Atmel Wireless and Microcontrollers Division, "These new products offer designers a unique opportunity to accelerate system integration. They have a medium size FLASH memory, easy to implement In-system Programming through multi-serial interfaces and large RAM capacity fully adapted for C-language programming. These features are suitable for a wide range of applications such as alarms, TFT LCD monitors, set top box, Internet appliances and smart card readers". Plug-in compatible ROM T83C51RB2 and T83C51RC2 versions are also available to cut down manufacturing costs. "Beyond cost, we understand that lead-time is also a critical factor when it comes to purchasing. Compared to traditional ROM suppliers' commitment, our mask ROM service offers reduced lead- times to enable production at high volumes," continues Manish Vadher. The company's Web site address is http://www.atmel.com/. [Reprinted with kind permission from Atmel]

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