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DS1685QN-5+ Datasheet(PDF) 1 Page - Maxim Integrated Products

Part # DS1685QN-5+
Description  3V/5V Real-Time Clocks
Download  34 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1685QN-5+ Datasheet(HTML) 1 Page - Maxim Integrated Products

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FEATURES
Incorporates Industry-Standard DS1287 PC Clock
plus Enhanced Features Such as: Y2K Compliant
+3V or +5V Operation
64-Bit Silicon Serial Number
Power-Control Circuitry Supports System
Power-On from Date/Time Alarm or Key
Closure
32kHz Output for Power Management
Crystal-Select Bit Allows RTC to Operate with
6pF or 12.5pF Crystal
SMI Recovery Stack
242 Bytes Battery-Backed NV RAM
Auxiliary Battery Input
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
PIN CONFIGURATIONS
DS1685/DS1687
3V/5V Real-Time Clocks
www.maxim-ic.com
PLCC
AD0
AD1
AD2
AD3
AD4
AD5
RCLR
VBAT
IRQ
KS
RD
GND
WR
25
24
23
22
21
20
19
5
6
7
8
9
10
11
4
3
2
1
28
27
26
12
13 14
15 16
17
18
N.C.
DS1685Q
PDIP (0.600
)/
SO (0.300
)/
TSSOP (0.173
)
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
VCC
SQW
VBAUX
RCLR
VBAT
IRQ
KS
RD
GND
WR
PWR
X1
X2
AD0
AD1
AD2
AD3
AD4
AD5
AD6
11
12
14
13
AD7
GND
ALE
CS
DS1685/
DS1685S/
DS1685E
EDIP (0.740
)
1
2
3
4
5
6
7
8
9
10
24
23
22
21
20
19
18
17
16
15
V
CC
SQW
V
BAUX
RCLR
N.C.
IRQ
KS
RD
N.C.
WR
PWR
N.C.
N.C.
AD0
AD1
AD2
AD3
AD4
AD5
AD6
11
12
14
13
AD7
GND
ALE
CS
DS1687
TOP VIEW
19-5215; Rev 4/10


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