5秒后页面跳转
DS1286 PDF预览

DS1286

更新时间: 2024-01-20 01:59:29
品牌 Logo 应用领域
达拉斯 - DALLAS 计时器或实时时钟微控制器和处理器外围集成电路双倍数据速率
页数 文件大小 规格书
13页 236K
描述
Watchdog Timekeeper

DS1286 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:MODULE
包装说明:DIP, DIP28,.6针数:28
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8473.30.11.80风险等级:5.75
Is Samacsys:N其他特性:ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P
最大时钟频率:0.032 MHz外部数据总线宽度:8
信息访问方法:PARALLEL, DIRECT ADDRESS中断能力:Y
JESD-30 代码:R-XDMA-P28JESD-609代码:e3
长度:38.865 mm端子数量:28
计时器数量:1最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:DIP封装等效代码:DIP28,.6
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
峰值回流温度(摄氏度):NOT APPLICABLE电源:5 V
认证状态:Not Qualified座面最大高度:10.28 mm
子类别:Timer or RTC最大供电电压:5.5 V
最小供电电压:4.5 V标称供电电压:5 V
表面贴装:NO技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:PIN/PEG端子节距:2.54 mm
端子位置:DUAL最短时间:1/100 SECOND
处于峰值回流温度下的最长时间:NOT APPLICABLE易失性:YES
宽度:15.24 mmuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS1286 数据手册

 浏览型号DS1286的Datasheet PDF文件第2页浏览型号DS1286的Datasheet PDF文件第3页浏览型号DS1286的Datasheet PDF文件第4页浏览型号DS1286的Datasheet PDF文件第5页浏览型号DS1286的Datasheet PDF文件第6页浏览型号DS1286的Datasheet PDF文件第7页 
DS1286  
Watchdog Timekeeper  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
Keeps track of hundredths of seconds,  
seconds, minutes, hours, days, date of the  
month, months, and years; valid leap year  
compensation up to 2100  
VCC  
WE  
INTA  
NC  
1
28  
27  
2
3
4
26  
25  
INTB(INTB)  
NC  
NC  
NC  
5
6
24  
23  
NC  
SQW  
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  
A5  
A4  
7
8
22  
21  
OE  
NC  
A3  
A2  
9
10  
20  
19  
CE  
DQ7  
A1  
A0  
DQ0  
DQ1  
11  
12  
18  
17  
DQ6  
DQ5  
DQ2  
GND  
13  
14  
16  
15  
DQ4  
DQ3  
28-Pin Encapsulated Package  
(720-Mil Flush)  
Accuracy is better than ±1 minute/month at  
25°C  
Greater than 10 years of timekeeping in the  
absence of VCC  
50 bytes of user NV RAM  
PIN DESCRIPTION  
INTA  
- Interrupt Output A (open drain)  
INTB (INTB) - Interrupt Output B (open drain)  
A0-A5  
- Address Inputs  
DQ0-DQ7  
- Data Input/Output  
CE  
OE  
- Chip Enable  
- Output Enable  
WE  
- Write Enable  
- +5 Volts  
- Ground  
- No Connection  
- Square Wave Output  
VCC  
GND  
NC  
SQW  
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 VCC and write protects  
memory when VCC is out of tolerance. The lithium energy source can maintain data and real time for over  
10 years in the absence of VCC. 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  

与DS1286相关器件

型号 品牌 获取价格 描述 数据表
DS1286I DALLAS

获取价格

Watchdog Timekeepers
DS1286I+ DALLAS

获取价格

Watchdog Timekeepers
DS1287 DALLAS

获取价格

Real Time Clock
DS1287A DALLAS

获取价格

Real Time Clock
DS12885 DALLAS

获取价格

Real-Time Clock
DS12885 MAXIM

获取价格

Real-Time Clock
DS12885 ADI

获取价格

实时时钟
DS12885/Q/T ETC

获取价格

Real-Time Clock
DS12885/TR MAXIM

获取价格

Timer or RTC
DS12885_10 MAXIM

获取价格

Real-Time Clocks