Datasheet > DS1511

DS1511

更新时间： 2023-12-20 18:45:44

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Y2K兼容、看门狗实时时钟

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DS1511 数据手册

DS1501/DS1511

Y2K-Compliant Watchdog

Real-Time Clocks

GENERAL DESCRIPTION

FEATURES

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

Hours, Minutes, and Seconds with Automatic

Leap-Year Compensation Valid Up to the Year

2100

The DS1501/DS1511 are full-function, year 2000-

compliant real-time clock/calendars (RTCs) with an

RTC alarm, watchdog timer, power-on reset, battery

monitors, 256 bytes NV SRAM, and a 32.768kHz

output. User access to all registers within the

DS1501/DS1511 is accomplished with a byte-wide

interface, as shown in Figure 8. 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.

Programmable Watchdog Timer and RTC

Alarm

Century Register; Y2K-Compliant RTC

+3.3 (W) or +5V (Y) Operation

Precision Power-On Reset

Power-Control Circuitry Support System

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

Closure/Modem-Detect Signal

APPLICATIONS

Remote Systems

Battery-Backed Systems

Telecom Switches

Office Equipment

256 Bytes Battery-Backed SRAM

Auxiliary Battery Input

Accuracy of DS1511 Better than ±1

Minute/Month at +25°C

Consumer Electronics

Day-of-Week/Date Alarm Register

Crystal Select Bit Allow RTC to Operate with

6pF or 12.6pF Crystal (DS1501)

Battery Voltage-Level Indicator Flags

Pin Configurations and Typical Operating Circuit appear at

end of data sheet.

Available as Chip (DS1501) or Stand-Alone

Encapsulated DIP Module with Embedded

Battery and Crystal (DS1511)

Underwriters Laboratories (UL) Recognized

ORDERING INFORMATION

PART

DS1501WE+

DS1501WEN+

DS1501WEN+T&R

DS1501WE+T&R

VOLTAGE (V)

TEMP RANGE

PIN-PACKAGE

28 TSOP

TOP MARK*

DS1501WE

DS1501WEN

DS1501WE

3.3

0°C to +70°C

-40°C to +85°C

0°C to +70°C

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

*A “+” anywhere on the top mark denotes a lead(Pb)-free device. An N or IND denotes an industrial temperature device.

T&R = Tape and reel.

Ordering Information continued at end of data sheet.

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.maximintegrated.com/errata.

1 of 22

19-6820; Rev 10/13

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与DS1511相关器件

型号	品牌	描述	获取价格	数据表
DS1511W	MAXIM	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28	获取价格
DS1511W	DALLAS	Y2K-Compliant Watchdog Real-Time Clocks	获取价格
DS1511W+	MAXIM	Y2K-Compliant Watchdog Real-Time Clocks	获取价格
DS1511W-IND	MAXIM	Real Time Clock, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28	获取价格
DS1511Y	DALLAS	Y2K-Compliant Watchdog Real-Time Clocks	获取价格
DS1511Y	MAXIM	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28	获取价格