1339C-2SRI

更新时间： 2024-11-21 07:26:27

品牌	Logo	应用领域
艾迪悌 - IDT		时钟
页数	文件大小	规格书
27页	358K
描述
REAL-TIME CLOCK WITH SERIAL I2C INTERFACE

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中文翻译

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数据手册

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1339C-2SRI 数据手册

DATASHEET

REAL-TIME CLOCK WITH SERIAL I C INTERFACE

IDT1339

General Description

Features

The IDT1339 serial real-time clock (RTC) is a low-power

clock/date device with two programmable time-of-day

alarms and a programmable square-wave output. Address

and data are transferred serially through an I²C bus. The

clock/date provides seconds, minutes, hours, day, date,

month, and year information. The date at the end of the

month is automatically adjusted for months with fewer than

31 days, including corrections for leap year. The clock

operates in either the 24-hour or 12-hour format with

AM/PM indicator. The IDT1339 has a built-in power-sense

circuit that detects power failures and automatically

switches to the backup supply, maintaining time, date, and

alarm operation.

•

Real-Time Clock (RTC) counts seconds, minutes, hours,

day, date, month, and year with leap-year compensation

valid up to 2100

•

Packaged in 8-pin MSOP, 8-pin SOIC, or 16-pin SOIC

(surface-mount package with an integrated crystal)

Fast mode I²C Serial interface

•

Two time-of-day alarms

Programmable square-wave output

Oscillator stop flag

Automatic power-fail detect and switch circuitry

Trickle-charge capability

Applications

Industrial temperature range (-40 to +85°C)

•

Handhelds (GPS, POS terminals)

Consumer Electronics (Set-Top Box, Digital Recording,

Network Applications)

•

Office (Fax/Printers, Copiers)

Medical (Glucometer, Medicine Dispensers)

Telecomm (Routers, Switches, Servers)

Other (Thermostats, Vending Machines, Modems, Utility

Meters)

Block Diagram

Crystal inside package

for 16-pin SOIC ONLY

1 Hz/4.096 kHz/

8.192 kHz/32.768 kHz

MUX/

Buffer

32.768 kHz

Oscillator and

Divider

SQW/INT

GND

VCC

Clock,

Calendar

Counter

Control

Logic

Power

Control

Trickle

Charger

V_BACKUP

SCL

SDA

I²C

Interface

1 Byte 7 Bytes 7 Bytes 1 Byte

Control Buffer Alarm Status

IDT® REAL-TIME CLOCK WITH SERIAL I²C INTERFACE

IDT1339

REV K 032910

12 3 4 5 6 7...27

中文翻译

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