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EM3023 Datasheet PDF

EM Microelectronic EM3023

The V3023 is a low power CMOS real time clock with a built in crystal. The interface is 8 bits with multiplexed address and data bus.
Part No. EM3023
Datasheet EM3023 Download
Manufacturer
EM Microelectronic
Description Very Low Power 8-Bit 32 kHz RTC Module
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EM3023 datasheet page 1 preview

DESCRIPTION

Standby current is typically 1.2 µA and the access time is 50 ns. 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. Calendar functions include leap year correction and week number calculation. Time precision can be achieved by digital trimming. The V3023 can be synchronized to an external 50 Hz signal or to the nearest second or minute.

APPLICATIONS

● Industrial controllers
● Alarm systems with periodic wake up
● PABX and telephone systems
● Point of sale terminals
● Automotive electronics

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 5...
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