JN5139/001,515 NXP Semiconductors, JN5139/001,515 Datasheet - Page 18

• Manufacturer Part Number: JN5139/001,515
• Description: IC MCU 32BIT 56QFN
• Manufacturer: NXP Semiconductors

Specifications of JN5139/001,515

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5.2.2 32kHz External Clock
An externally supplied 32kHz reference clock on the CLK32K input (DIO9) may be provided to the JN5139. This
would allow the 32kHz system clock to be sourced from a very stable external oscillator module, allowing more
accurate sleep cycle timings. (See section 17.2.3 I/O Characteristics, DIO9 is a 3V tolerant input)
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JN-DS-JN5139 1v9
© NXP Laboratories UK 2010