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

DS1287 Datasheet

  • DS1287

  • Real Time Clock

  • 24.27KB

  • 1頁

  • DALLAS   DALLAS

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

DS1287
DS1287
Real Time Clock
FEATURES
PIN ASSIGNMENT
MOT
NC
NC
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
CC
SQW
NC
NC
NC
IRQ
RESET
DS
NC
R/W
AS
CS
鈥?/div>
Drop-in replacement for IBM AT computer clock/ca-
lendar
鈥?/div>
Pin compatible with the MC146818A
鈥?/div>
Totally nonvolatile with over 10 years of operation in
the absence of power
鈥?/div>
Self-contained
鈥?/div>
Counts
subsystem includes lithium, quartz,
and support circuitry
seconds, minutes, hours, day of the week,
date, month, and year with leap year compensation
alarm
鈥?/div>
Binary or BCD representation of time, calendar, and
鈥?/div>
12- or 24-hour clock with AM and PM in 12-hour mode
鈥?/div>
Daylight Savings Time option
鈥?/div>
Selectable between Motorola and Intel bus timing
鈥?/div>
Multiplex bus for pin efficiency
鈥?/div>
Interfaced with software as 64 RAM locations
鈥?14 bytes of clock and control registers
鈥?50 bytes of general purpose RAM
24 PIN ENCAPSULATED PACKAGE
PIN DESCRIPTION
AD0鈥揂D7
NC
MOT
CS
AS
R/W
DS
RESET
IRQ
drain)
SQW
V
CC
GND
-
-
-
-
-
-
-
-
-
-
-
-
Multiplexed address/data bus
No connection
Bus type selection
Chip select
Address strobe
Read/write input
Data strobe
Reset input
Interrupt request output (open
Square wave output
+5 volt supply
Ground
鈥?/div>
Programmable square wave output signal
鈥?/div>
Bus-compatible interrupt signals (IRQ)
鈥?/div>
Three
interrupts are separately software-maskable
and testable
鈥?Time-of-day alarm once/second to once/day
鈥?Periodic rates from 122
碌s
to 500 ms
鈥?End of clock update cycle
DESCRIPTION
The DS1287 Real Time Clock is designed to be a direct
replacement for the MC146818A. For a complete
description of operating conditions, electrical and
mechanical characteristics, bus timing, and pin descrip-
tions see the DS12887 data sheet.
050898 1/1

DS1287相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    Design Guidelines for CompactPCI Hot Swap Control Applicatio...
    Linear
  • 英文版
    Distributed Power System
    EMERSON-NETWORK...
  • 英文版
    Serial RAM Chip
    Dallas
  • 英文版
    NOVRAM|128X8|CMOS|MODULE|5PIN|PLASTIC
    ETC
  • 英文版
    Electronic Tag
    DALLAS [Da...
  • 英文版
    Serial Timekeeping Chip
    DALLAS
  • 英文版
    Serial timekeeping chip in 8-pin DIP package. Operational te...
  • 英文版
    Rev F1 Dallas Semiconductor
    MAXIM [Max...
  • 英文版
    MISC MEMORY|MODULE|5PIN|PLASTIC
    ETC
  • 英文版
    TimeKey
    Dallas
  • 英文版
    dallas semiconductor reliability report
    ETC
  • 英文版
    dallas semiconductor reliability report
    ETC [ETC]
  • 英文版
    Nonvolatile Controller Chip
    Dallas
  • 英文版
    Nonvolatile Controller x 8 Chip
    Dallas
  • 英文版
    Nonvolatile Controller x 16 Chip
    DALLAS
  • 英文版
    1帶16非易失控制器芯片
    MAXIM
  • 英文版
    Phantom Time Chip
    DALLAS
  • 英文版
    Phantom Time Chip
    DALLAS [Da...
  • 英文版
    SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F
    DALLAS
  • 英文版
    SmartWatch RAM DS1216B/C/D/H SmartWatch ROM DS1216E/F
    Maxim

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

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！