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Real-time clock ICs deliver low current consumption

Tokyo, Japan — Oki Electric Industry Co., Ltd. has developed a family of real-time clock (RTC) ICs with an ultra-low current consumption of 0.15 microamp. Using SOI-CMOS technology to achieve low power and low voltage, the ML9073/ML9074 series is said to deliver a 1.5-fold increase in battery life than conventional chips, making them suitable for mobile and AV equipment.

The ML9073/ML9074 provides a supply voltage range of 1.1 to 3.6 volts, and a timing supply voltage range of 0.8 to 3.6 volts.

Most devices including digital cameras, audio players, TVs and DVD recorders have a built-in RTC for their clock functions to keep accurate time even when the power is turned off, said Oki. However, most RTCs are embedded in ASICs and MPUs as an IP and it is difficult to minimize current consumption because ASICs and MPUs use leading edge processes, which means reducing current consumption when the power is turned off is a challenge in mobile equipment that runs on small batteries such as button dry batteries, said the company.

Availability: Samples are available.
Product information: www.oki.com/en/press/2007/z07003e-2.html

Oki Electric Industry Co., Ltd. , 1-408-720-1900, www.oki.com

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