音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

DS1286 Datasheet

  • DS1286

  • Watchdog Timekeeper

  • Dallas   Dallas

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

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 鹵1 minute/month at
25擄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 產(chǎn)品屬性

  • 12

  • 集成電路 (IC)

  • 時鐘/計時 - 實時時鐘

  • -

  • 時鐘/日歷

  • 警報器，閏年，方波輸出，SRAM，監(jiān)視計時器

  • 50B

  • HH:MM:SS:hh（12/24 小時）

  • YY-MM-DD-dd

  • 并聯(lián)

  • 4.5 V ~ 5.5 V

  • 2.4 V ~ 3.5 V

  • 0°C ~ 70°C

  • 通孔

  • 28-DIP 模塊（0.61"，15.49mm）23 引線

  • 28-EDIP

  • 管件

DS1286相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！