9 March 2005DSP, Micros & Memory
Information Security
Three new members have been added to the tinyAVR 8-pin family of Flash microcontrollers from Atmel. The devices offer three different Flash, EEPROM and SRAM combinations. The ATtiny25 has 2 KB of self-programmable Flash memory, whereas ATtiny45 and ATtiny85 have 4 KB and 8 KB, respectively. The ATtiny25/45/85 includes a temperature sensor allowing temperature calibration of system parameters. Being pin and functionally compatible, it is possible to migrate both up and down in memory footprint with minimum effort. All new devices are capable of 20 MIPS throughput when running at 20 MHz. Advanced features typically only found in high-end microcontrollers include: functions like internal EEPROM; differential ADC; and integrated 16 MHz high precision internal RC oscillator. Two PWM outputs capable of generating a 250 kHz PWM output at 8-bit resolution are available. The ATtiny25/45/85 have inherent low power consumption, drawing less than 100 nA in 'power down' mode.
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