LV8572AM, LV8 - LV8572A Low Voltage Real Time Clock (RTC)

National Semiconductor

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LV8572AM Datasheet Preview — This datasheet PDF includes multiple part numbers: LV8572AM, LV8. Please refer to the document for exact specifications by model.

Datasheet Details

Part number	LV8572AM, LV8
Manufacturer	National Semiconductor
File Size	329.68 KB
Description	LV8572A Low Voltage Real Time Clock (RTC)
Datasheet	LV8-572.pdf
Note	This datasheet PDF includes multiple part numbers: LV8572AM, LV8. Please refer to the document for exact specifications by model.

LV8572AM Product details

Description

The LV8572A is intended for use in microprocessor based systems where information is required for multi-tasking data logging or general time of day date information This device is implemented in low voltage silicon gate microCMOS technology to provide low standby power in battery back-up environments The circuit’s architecture is such that it looks like a contiguous block of memory or I O ports The address space is organized as 2 software selectable pages of 32 bytes This includes the Control Re

Features

Y Y Y Y Y 3 3V g 10% supply Full function real time clock calendar 12 24 hour mode timekeeping Day of week and day of years counters Four selectable oscillator frequencies Parallel resonant oscillator Power fail features Internal power supply switch to external battery Power Supply Bus glitch protection Automatic log of time into RAM at power failure On-chip interrupt structure Periodic alarm and power fail interrupts Up to 44 bytes of CMOS RAM Block Diagram TL F 11417.
1 FIGURE.

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Published: Mar 30, 2005 |