Micro Crystal

Real Time Clock / Calendar Module

RV-8564

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RV-8564

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1. OVERVIEW

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RTC module with built-in crystal oscillating at 32.768 kHz

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400kHz two-wire I

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Wide Interface operating voltage: 1.8 – 5.5 V

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Wide clock operating voltage: 1.2 – 5.5 V

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Low power consumption: 250 nA typ @ 3.0V / 25°C

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Provides year, month, day, weekday, hours, minutes, seconds

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Alarm and Timer functions

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Century flag

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Low voltage detector, internal power on reset

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Programmable clock output for peripheral devices (32.768 kHz, 1024 Hz, 32 Hz, 1 Hz)

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Available in 2 different small and compact package sizes, RoHS-compliant and 100% leadfree:

C2: 5.0 x 3.2 x 1.2 mm

C3: 3.7 x 2.5 x 0.9 mm

2. GENERAL DESCRIPTION

The RV-8564 is a CMOS real time clock / calendar optimized for low power consumption. A programmable clock

output, interrupt output and voltage low detector are also provided. All address and data are transferred serially via

a two-line bi-directional I

incremented automatically after each written or read data byte.