Datasheet > DS1500_11

DS1500_11

更新时间： 2024-09-16 09:56:03

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
20页	536K
描述
Y2K Watchdog RTC with Nonvolatile Control

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数据手册

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DS1500_11 数据手册

19-6130; Rev 11/11

DS1500

Y2K Watchdog RTC with Nonvolatile Control

GENERAL DESCRIPTION

FEATURES

BCD-Coded Century, Year, Month, Date, Day,

The DS1500 is a full-function, year 2000-compliant

real-time clock/calendar (RTC) with an alarm,

watchdog timer, power-on reset, battery monitors,

256 bytes of on-board nonvolatile (NV) SRAM, NV

control for backing up an external SRAM, and a

32.768kHz output. User access to all registers within

the DS1500 is accomplished with a byte-wide

interface, as shown in Figure 7. The RTC registers

contain century, year, month, date, day, hours,

minutes, and seconds data in 24-hour binary-coded

decimal (BCD) format. Corrections for day of month

and leap year are made automatically.

Hours, Minutes, and Seconds with Automatic

Leap-Year Compensation Valid Up to the Year

2100

Programmable Watchdog Timer and RTC

Alarm

Century Register; Y2K-Compliant RTC

Automatic Battery Backup and Write

Protection to External SRAM

+5V or +3.3V Operation

Precision Power-On Reset

Power-Control Circuitry Supports System

Power-On from Date/Day/Time Alarm or Key

Closure

APPLICATIONS

Remote Systems

Battery-Backed Systems

Telecom Switches

Office Equipment

256 Bytes User NV RAM

Auxiliary Battery Input

Consumer Electronics

Accuracy Better than ±1 Minute/Month at

+25°C

Day-of-Week/Date Alarm Register

Pin Configuration and Typical Operating Circuit appear at

end of data sheet.

Battery Voltage-Level Indicator Flags

Optional Industrial Temperature Range: -40°C

to +85°C

ORDERING INFORMATION

PART

TEMP RANGE

VOLTAGE (V)

PIN-PACKAGE

TOP MARK*

DS1500WE+

DS1500WEN+

DS1500YE+

DS1500YEN+

3.3

5.0

32 TSOP

DS1500W

DS1500WN

DS1500Y

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

DS1500YN

+Denotes a lead(Pb)-free/RoHS-compliant device.

*A “+” anywhere on the top mark indicates a lead(Pb)-free/RoHS-compliant device. An “N” indicates an industrial temperature range device.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

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DS1500WEN+	MAXIM	获取价格	Y2K Watchdog RTC with Nonvolatile Control
DS1500WN	MAXIM	获取价格	Y2K Watchdog RTC with Nonvolatile Control
DS1500Y	MAXIM	获取价格	Y2K Watchdog RTC with Nonvolatile Control