Real time clocks operate down to 0.9V
Designed to operate at low voltages down to 0.9V, NXP's new PCF85063 family of ultra small real time clocks is said to help further reduce pcb space in mobile, computing and imaging devices.
The PCF85063TP is the first of three devices to be added to the series. Measuring 2 x 3 x 0.75mm and with a pin pitch of 0.5mm, it tracks time and date from seconds to years, and is claimed to be one of the smallest of its kind in the world.
Completing the line up, the PCF85063ATL and PCF85063BTL are available in a 2.6 x 2.6 x 0.5mm package and offer additional features such as an alarm facility and a countdown timer controlled via an I2C or SPI bus.
In addition to electronic frequency tuning, NXP says the clocks can also be programmed to generate an interrupt every 30 or 60s, communicating via a Fast mode I2C bus operating up to 400kHz.
