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The RTC block in the LPC3250 has an ultra low power design and is ideal for battery powered systems. It has a dedicated 32 KHz oscillator, 128 Bytes of very low voltage static RAM, and interrupt mechanisms using match registers to come out of STOP mode. Also, a point to note is that the RTC power domain is isolated from the rest of the chip. An output pin is also included to assist in waking the chip when it has power removed to all functions except the RTC and Battery RAM.
PTM Published on: 2011-11-02
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