ISL12030 datasheet(2/17 Pages) INTERSIL

Il numero della parte	ISL12030

Spiegazioni elettronici	Low Power RTC with 50/60 Cycle AC Input, Alarms and Daylight Savings Correction

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Produttore elettronici	INTERSIL [Intersil Corporation]

Homepage	http://www.intersil.com/cda/home

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2 / 17 page

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FN6617.0

December 14, 2007

Block Diagram

I2C

INTERFACE

CONTROL

LOGIC

ALARM

RTC

DIVIDER

SDA

BUFFER

SCL

BUFFER

SDA

SCL

VDD

IRQ

INTERNAL

SUPPLY

SECONDS

MINUTES

HOURS

DAY OF WEEK

DATE

MONTH

YEAR

USER

SRAM

CONTROL

REGISTERS

GND

AC

AC INPUT

BUFFER

Functional Pin Descriptions

NUMBER

SYMBOL

DESCRIPTION

2GND

Ground.

3AC

AC Input. The AC input pin accepts either 50Hz of 60Hz AC 2.5VP-P sine wave signal.

5SDA

Serial Data. SDA is a bi-directional pin used to transfer serial data into and out of the device. It has an open drain

output and may be wire OR’ed with other open drain or open collector outputs.

6SCL

Serial Clock. The SCL input is used to clock all serial data into and out of the device.

7IRQ

Interrupt Output. Open Drain active low output. Interrupt output pin to indicate alarm is triggered.

8VDD

Power supply.

1, 4

NC

No Connection. Do not connect to any electrical circuit, power or ground.

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