Top Stories Atmel Releases Two New TinyAVR Microcontrollers New ATTiny13 and ATTiny2313 micros offer low power consumption and on-chip debug Atmel© Corporation announced today two new members of the tinyAVR© Flash Microcontroller Family with on-chip debug capability. The tiny13 and tiny2313 are designed to address the requirements of battery operated and portable applications by offering low power consumption and a high level of system integration in a small package. These new AVR© devices help design engineers reduce development costs, design time and ultimately production cost. The tiny13 and tiny2313 combine a code efficient and powerful Microcontroller with low power Flash memory technology. The debugWIRE interface enables On-Chip Debug, a feature usually available only on much larger devices. As system designers face increasing pressure to bring products to market on shorter development times, production has to start before software development is completed. On-Chip Debug gives the designer the opportunity to do full debugging on the finished product. Atmel introduces debugWIRE to fulfill this requirement. The debugWIRE uses the Reset line for electrical connection; hence the system designer does not have to sacrifice I/O capabilities to take full advantage of the On-Chip-Debug system. The debugWIRE and the AVR Studio? user interface give the designer complete control of the Microcontroller resources, helping to reduce development time by making debugging easier. DebugWIRE enables on chip debug of 8-bit microcontroller devices in small pin count pagckages. The 8-pin tiny13 and tiny2313 does not have enough I/O lines to effectively support JTAG interface, which requires 4 I/Os. The two new devices include numerous new features that enable significant system cost reduction. The integrated Brown-Out Detector removes an external component from the system. The On-Chip Calibrated RC Oscillator may eliminate the external crystal or resonator. The significantly lower power consumption may reduce the cost of the power supply, or extend battery lifetime. Battery lifetime may be extended even further, as the devices can operate with a supply voltage all the way down to 1.8V. Typical power consumption at 1MHz, 1.8V is less than 300 uA, at 32kHz less than 20 uA. Self Programmable Flash lets the AVR write to its own program memory, enabling remote updates of the program and parameter storage in the flash memory. The tiny13 and tiny2313 can run at clock speeds up to 16MHz at 5V. Additionally the tiny2313 has 2K Bytes of Self Programing Flash memory plus 128 Bytes of EEPROM and SRAM plus 18 I/O lines. 8 interrupt pins makes the device very responsive to real world events. Having as many as 4 PWM channels makes the device capable of controlling multiple analog outputs. The variable resolution gives the designer great freedom in trading PWM resolution vs. PWM frequency. This feature can also be used for generating arbitrary output waveforms. The tiny 13 has half the memory density and I/O lines plus a 4 channel 10 bit A/D Converter making the device ideal for low cost applications dealing with real world signals. The company's Web site address is http://www.atmel.com/. [Reprinted with kind permission from Atmel Corporation]

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