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DS1685-5 Datasheet

  • DS1685-5

  • 3V/5V實時時鐘

  • 39頁

  • MAXIM   MAXIM

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上傳產品規(guī)格書

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DS1685/DS1687
3V/5V Real-Time Clocks
www.maxim-ic.com
FEATURES
Incorporates Industry-Standard DS1287 PC Clock
plus Enhanced Features Such as:
摟
Y2K Compliant
摟
+3V or +5V Operation
摟
64-Bit Silicon Serial Number
摟
Power-Control Circuitry Supports System Power-
On from Date/Time Alarm or Key Closure
摟
32kHz Output for Power Management
摟
Crystal-Select Bit Allows RTC to Operate with
6pF or 12.5pF Crystal
摟
SMI Recovery Stack
摟
242 Bytes Battery-Backed NV RAM
摟
Auxiliary Battery Input
摟
摟
摟
摟
摟
摟
摟
RAM Clear Input
Century Register
Date Alarm Register
Compatible with Existing BIOS for Original
DS1287 Functions
Available as Chip (DS1685) or Stand-Alone
Encapsulated DIP (EDIP) with Embedded
Battery and Crystal (DS1687)
Timekeeping Algorithm Includes Leap-Year
Compensation Valid Through 2099
Underwriters Laboratory (UL) Recognized
APPLICATIONS
Embedded Systems
Utility Meters
Security Systems
Network Hubs, Bridges, and Routers
PACKAGE DIMENSION
INFORMATION
www.maxim-ic.com/DallasPackInfo
PIN CONFIGURATIONS
TOP VIEW
PWR
X1
X2
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
1
2
24
23
V
CC
X2
X1
PWR
N.C.
V
CC
SQW
PWR
1
2
3
4
5
6
7
8
9
10
11
12
24
V
CC
SQW
V
BAUX
RCLR
N.C.
IRQ
KS
RD
N.C.
WR
ALE
CS
DS1685/
3
DS1685S/
22
4
DS1685E
21
5
6
7
8
9
10
11
12
20
19
18
17
16
15
14
13
V
BAUX
RCLR
V
BAT
IRQ
KS
RD
GND
WR
ALE
CS
AD0
AD1
AD2
AD3
AD4
AD5
N.C.
5
6
7
8
9
V
BAUX
SQW
N.C.
N.C.
RCLR
V
BAT
IRQ
KS
RD
GND
WR
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
DS1687
23
22
21
20
19
18
17
16
15
14
13
4
3
2
1
28
27
26
25
24
23
22
21
20
19
DS1685Q
10
11
12
13 14
15 16
17
18
DIP (0.600鈥?/
SO (0.300鈥?/
TSSOP (0.173鈥?
AD6
N.C.
AD7
GND
CS
ALE
N.C.
PLCC
EDIP (740 mil)
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here:
www.maxim-ic.com/errata.
1 of 33
REV: 032604

DS1685-5 PDF文件相關型號

DS1685E,DS1685E-3

DS1685-5 產品屬性

  • Maxim Integrated Products

  • Clock, Calendar, Alarm

  • Multiplexed

  • DW:DM:M:Y, Binary

  • HH:MM:SS, Binary

  • 242 B

  • 5.5 V

  • 4.5 V

  • + 70 C

  • 0 C

  • Through Hole

  • PDIP-24

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