DP8573A - Real Time Clock (RTC)

Product Overview

National Semiconductor

Datasheet Details

Part number	DP8573A
Manufacturer	National Semiconductor
File Size	270.13 KB
Description	Real Time Clock (RTC)
Datasheet	DP8573A Datasheet
Additional preview pages of the DP8573A datasheet.

Product details

Description

The DP8573A 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 organized as one block of 32 bytes This includes the Control Registers the Clock Counters the Alarm Co

Features

Y Y Y Full function real time clock calendar 12 24 hour mode timekeeping Day of week counter 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 Block Diagram TL F 9981.
1 FIGURE 1 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Co.

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Published: Nov 23, 2005 |