您的位置：维库电子市场网 > Datasheet > DS1286
DS1286数据手册封面

DS1286 Datasheet

  • DS1286

  • Watchdog Timekeeper

  • 234.09KB

  • Dallas   Dallas

纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

DS1286
Watchdog Timekeeper
www.dalsemi.com
FEATURES
Keeps track of hundredths of seconds,
seconds, minutes, hours, days, date of the
month, months, and years; valid leap year
compensation up to 2100
Watchdog timer restarts an out-of-control
processor
Alarm function schedules real time-related
activities
Embedded lithium energy cell maintains time,
watchdog, user RAM, and alarm information
Programmable interrupts and square wave
outputs maintain 28-pin JEDEC footprint
All registers are individually addressable via
the address and data bus
Accuracy is better than 卤1 minute/month at
25掳C
Greater than 10 years of timekeeping in the
absence of V
CC
50 bytes of user NV RAM
PIN ASSIGNMENT
INTA
NC
NC
NC
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
CC
WE
INTB(INTB)
NC
NC
SQW
OE
NC
CE
DQ7
DQ6
DQ5
DQ4
DQ3
28-Pin Encapsulated Package
(720-Mil Flush)
PIN DESCRIPTION
- Interrupt Output A (open drain)
INTB
(INTB) - Interrupt Output B (open drain)
A0-A5
- Address Inputs
DQ0-DQ7
- Data Input/Output
CE
- Chip Enable
OE
- Output Enable
WE
- Write Enable
V
CC
- +5 Volts
GND
- Ground
NC
- No Connection
SQW
- Square Wave Output
INTA
DESCRIPTION
The DS1286 Watchdog Timekeeper is a self-contained real time clock, alarm, watchdog timer, and
interval timer in a 28-pin JEDEC DIP package. The DS1286 contains an embedded lithium energy source
and a quartz crystal which eliminates the need for any external circuitry. Data contained within 64 eight-
bit registers can be read or written in the same manner as bytewide static RAM. Data is maintained in the
Watchdog Timekeeper by intelligent control circuitry which detects the status of V
CC
and write protects
memory when V
CC
is out of tolerance. The lithium energy source can maintain data and real time for over
10 years in the absence of V
CC
. Watchdog Timekeeper information includes hundredths of seconds,
seconds, minutes, hours, day, date, month, and year. The date at the end of the month is automatically
1 of 13
111999

DS1286 产品属性

  • 12

  • 集成电路 (IC)

  • 时钟/计时 - 实时时钟

  • -

  • 时钟/日历

  • 警报器，闰年，方波输出，SRAM，监视计时器

  • 50B

  • HH:MM:SS:hh（12/24 小时）

  • YY-MM-DD-dd

  • 并联

  • 4.5 V ~ 5.5 V

  • 2.4 V ~ 3.5 V

  • 0°C ~ 70°C

  • 通孔

  • 28-DIP 模块（0.61"，15.49mm）23 引线

  • 28-EDIP

  • 管件

DS1286相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2024 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：

0571-85317607

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！