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High-accuracy real time clocks, in distribution

High-accuracy real time clocks, in distribution

New Products |
By eeNews Europe



Both new modules, RX8130CE and RX8900CE RTC, are in Epson’s smallest 3.2 x 2.5 x 1.0 mm package and include an IC and crystal in the package. By integrating the crystal, the modules save board space, reduce cost, and improve accuracy as well as functional safety.

Epson’s RX8130CE is a cost optimised low power (300 nA) RTC Module featuring a built-in power switch function optimised for rechargeable batteries and achieving an accuracy of 5 ±23 ppm at 25°C. It is designed for use with any power source. Due to the built-in power switch function no external circuits are required for the switch from primary to backup power supply in case the main supply is turned off. The RX8900CE module uses DTCXO technology to achieve ±5 or ±3.4 ppm accuracy over the entire -40 to +85°C operating range. Its power is 700 nA, which is three times lower than competing DTCXO RTCs. Epson’s DTCXO RTC technology is also available for automotive applications in the RA8900CE which is AEC-Q200 compliant and manufactured on a dedicated automotive assembly. For the lowest applications, the RX6110SA is available. It achieves 130 nA operating current and is suitable for any battery driven application.

All three modules include different versions of an automatic power switch that requires no external components and maximises operating life. They have an I²C interface and Epson provides a Linux driver to facilitate rapid software development.

Rutronik: www.rutronik.com

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