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EM3023 - Very Low Power 8-Bit 32 kHz RTC Module

General Description

The V3023 is a low power CMOS real time clock with a built in crystal.

Standby current is typically 1.2 µA and the access time is 50 ns.

The interface is 8 bits with multiplexed address and data bus.

Key Features

  •  Built-in crystal with digital trimming and temperature compensation facilities  Can be synchronised to 50 Hz or nearest s/min  50 ns access time with 50 pF load capacitance  Standby on power down typically 1.2 µA  Universal interface compatible with both Intel and Motorola  Simple 8 bit interface with no delays or busy flags  16 bytes of user RAM  Power fail input disables during power up / down of reset  Bus can be in tri-state in power fail mode  Wide voltage range: 2.0 V to 5.5 V .

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Other Datasheets by EM Microelectronic (Swatch Group)

Part Number Description
EM3020 Ultra Low Power 1-Bit 32 kHz RTC
EM3021 Ultra Low Power 1-Bit 32-kHz RTC
EM3022 Very Low Power 8-Bit 32 kHz RTC Module
EM3025 Very Low Power 8-Bit 32-kHz RTC Module
EM3027 Real-Time Clock

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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EM MICROELECTRONIC - MARIN SA EM3023 Very Low Power 8-Bit 32 kHz RTC Module with Digital Trimming, User RAM and High Level Integration Description The V3023 is a low power CMOS real time clock with a built in crystal. Standby current is typically 1.2 µA and the access time is 50 ns. The interface is 8 bits with multiplexed address and data bus. Multiplexing of address and data is handled by the input line A /D. There are no busy flags in the V3023, internal time update cycles are invisible to the user's software. Time data can be read from the V3023 in 12 or 24 hour data formats. An external signal puts the V3023 in standby mode. Even in standby, the V3023 pulls the IRQ pin active low on an internal alarm interrupt.