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Date: 16-04-13

2 x 3 x 0.75 mm size and 0.9 Volt operating RTCs from NXP

NXP Semiconductors N.V. have introduced the PCF85063, tiny real-time clocks operating at very low voltages down to 0.9 V. With a size of 2 x 3 x 0.75 mm and a pin pitch of 0.5 mm, the PCF85063TP tracks time and date from seconds to years, and is one of the smallest RTCs in the world. In addition to electronic frequency tuning, the RTCs can also be programmed to generate an interrupt every 30 or 60 seconds, communicating via a Fast-mode I2C-bus operating up to 400 kHz.

Measuring at 2.6 x 2.6 x 0.5 mm, the PCF85063ATL and PCF85063BTL are similarly tiny, with additional features including an alarm facility and a countdown timer controlled via an I2C or SPI bus. Ideal for battery-powered operation (IDD ~0.22 μA), the PCF85063 can be used for a wide range of timing functions in compact mobile devices.

“By offering the key features you’d expect from a state-of-the-art timing reference in a remarkably tiny leadless package, the PCF85063 real-time clock family helps to further reduce PCB size for space-constrained mobile, computing and imaging devices, as well as home and industrial automation systems,” said Markus Hintermann, international product marketing manager, Interface Products, NXP Semiconductors. “Combining a sub-threshold low-power oscillator with leading-edge logic density, the very tiny RTCs also enable operation across a large voltage range from 0.9 to 5.5 V.”

Pricing and Availability: The PCF85063 family of real-time clocks is in volume production and available immediately. Indicative pricing for the PCF85063TP is US $0.26 per piece in 10k quantities.

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