Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS1284Q+T&R

DS1284Q+T&R

更新时间： 2024-09-26 03:10:55

品牌	Logo	应用领域
达拉斯 - DALLAS		/
页数	文件大小	规格书
18页	384K
描述
Watchdog Timekeepers

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

DS1284Q+T&R 数据手册

DS1284/DS1286

Watchdog Timekeepers

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

The DS1284/DS1286 watchdog timekeepers are ꢀ Keeps Track of Hundredths of Seconds,

self-contained real-time clocks, alarms, watchdog

timers, and interval timers in a 28-pin JEDEC DIP

and encapsulated DIP package. The DS1286

Seconds, Minutes, Hours, Days, Date of the

Month, Months, and Years; Valid Leap Year

Compensation Up to 2100

contains an embedded lithium energy source and a ꢀ Watchdog Timer Restarts an Out-of-Control

quartz crystal, which eliminates the need for any

external circuitry. The DS1284 requires an external ꢀ Alarm Function Schedules Real-Time-Related

quartz crystal and a V_BATsource, which could be a Activities

Processor

lithium battery. Data contained within 64 8-bit ꢀ Embedded Lithium Energy Cell Maintains

registers can be read or written in the same manner

as byte-wide static RAM. Data is maintained in the

Time, Watchdog, User RAM, and Alarm

Information

watchdog timekeeper by intelligent control circuitry ꢀ Programmable Interrupts and Square-Wave

that detects the status of V_CCand write protects

memory when V_CCis out of tolerance. The lithium ꢀ All Registers are Individually Addressable via

energy source can maintain data and real time for the Address and Data Bus

over 10 years in the absence of V_CC. Watchdog ꢀ Accuracy is Better than ±1 Minute/Month at

timekeeper information includes hundredths of +25°C (EDIP)

seconds, seconds, minutes, hours, day, date, month, ꢀ Greater than 10 Years of Timekeeping in the

Outputs Maintain JEDEC Footprint

and year. The date at the end of the month is

Absence of V_CC

automatically adjusted for months with fewer than ꢀ 50 Bytes of User NV RAM

31 days, including correction for leap year. The ꢀ Underwriters Laboratory (UL) Recognized

DS1284/DS1286 operate in either 24-hour or 12- ꢀ -40°C to +85°C Industrial Temperature Range

hour format with an AM/PM indicator. The devices

provide alarm windows and interval timing between

0.01 seconds and 99.99 seconds. The real-time

alarm provides for preset times of up to one week.

Option

Pin Configurations appear at end of data sheet.

ORDERING INFORMATION

PART

TEMP RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

VOLTAGE (V)

PIN-PACKAGE

28 DIP (600 mils)

28 PLCC

TOP MARK*

5.0

DS1284

DS1284N

DS1284 N

DS1284Q

DS1284QN

DS1286

DS1284Q

DS1284Q+

28 PLCC

DS1284Q/T&R

DS1284Q+T&R

DS1284QN

DS1284QN+

DS1284QN/T&R

DS1284QN+T&R

DS1286

28 PLCC/Tape and Reel

28 PLCC

28 PLCC/Tape and Reel

28 EDIP (720 mils)

DS1286I

DS1286 IND

DS1286I+

+ Denotes a lead-free/RoHS-compliant package.

* A “+” anywhere on the top mark indicates a lead-free package.

1 of 18

REV: 032406

12 3 4 5 6 7...18

中文翻译

下载PDF

与DS1284Q+T&R相关器件

型号	品牌	获取价格	描述	数据表
DS1284QN	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN	ROCHESTER	获取价格	1 TIMER(S), REAL TIME CLOCK, PQCC28, 0.452 INCH, PLASTIC, LCC-28
DS1284QN/R	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN/T	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN/T&R	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN+	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN+R	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN+T	DALLAS	获取价格	Watchdog Timekeepers
DS1284QN+T&R	DALLAS	获取价格	Watchdog Timekeepers
DS1285	DALLAS	获取价格	Real Time Clock

与DS1284Q+T&R相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

9
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

8
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

12
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

19

产品中心

服务支持

精选活动

关于我们

帮助中心

DS1284Q+T&R

DS1284Q+T&R 数据手册

与DS1284Q+T&R相关器件

与DS1284Q+T&R相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

DS1284Q+T&R

DS1284Q+T&R 数据手册

与DS1284Q+T&R相关器件

与DS1284Q+T&R相关文章

您还可以找

您在本页遇到什么问题？