April 1st, 2009 ~ by admin

Atmel’s new Tiny AVR: a CPU that runs on a single AA battery

Most mobile electronics runs on around 3V. For example your cell phone typically used a 3.7V Li Ion battery.  For some applications this much battery is not wanted, or feasible.  A single AA battery produces 1.2-1.5Volts, but as it is used this voltage will drop.  Atmel has just released a new line of their Tiny AVR (RISC microcontrollers that can run at voltages down to 0.7V.  Internally they are a 3V design, but they include a boost converter that can boost voltages from 0.7V to 1.8V to the 3V needed by the core, as well as the 4k of flash and 64bytes of on-board EEPROM.

 

ATtiny43u

ATtiny43u

All of this, in a 20 pin package running at up to 8MHz and costing a mere $1. This is why there is a microcontroller in almost every piece of electronics.

Posted in:
Processor News