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DS1689S+R Datasheet(PDF) 1 Page - Dallas Semiconductor

Part # DS1689S+R
Description  3V/5V Serialized Real-Time Clocks with NV RAM Control
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1689S+R Datasheet(HTML) 1 Page - Dallas Semiconductor

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REV: 112105
FEATURES
Incorporates Industry Standard DS1287 PC
Clock Plus Enhanced Features:
+3V or +5V Operation
64-Bit Silicon Serial Number
64-Bit Customer Specific ROM or
Additional Serial Number Available
Power Control Circuitry Supports System
Power-On from Date/Time Alarm or Key
Closure
Automatic Battery Backup and Write
Protection to External SRAM
Crystal Select Bit Allows RTC to Operate
with 6pF or 12.5pF Crystal
114 Bytes User NV RAM
Auxiliary Battery Input
RAM Clear Input
Century Register
32kHz Output for Power Management
32-Bit VCC Powered Elapsed Time Counter
32-Bit VBAT Powered Elapsed Time Counter
16-Bit Power Cycle Counter
Compatible with Existing BIOS for Original
DS1287 Functions
Available as IC (DS1689) or Stand-Alone
Module with Embedded Battery and Crystal
(DS1693)
Available in Industrial Temperature
Version
Timekeeping Algorithm Includes Leap Year
Compensation Valid Up to 2100
PIN CONFIGURATIONS
ORDERING INFORMATION
PART
TEMP RANGE
VOLTAGE (V)
PIN-PACKAGE
TOP MARK*
DS1689S
0
°C to +70°C
3 to 5
28 SO (0.330
″)
DS1689S
DS1689S+
0
°C to +70°C
3 to 5
28 SO (0.330
″)
DS1689S
DS1689SN
-40
°C to +85°C
3 to 5
28 SO (0.330
″)
DS1689S
DS1689SN+
-40
°C to +85°C
3 to 5
28 SO (0.330
″)
DS1689S
DS1689S/T&R
0
°C to +70°C
3 to 5
28 SO (0.330
″)/Tape & Reel
DS1689S
DS1689S+T&R
0
°C to +70°C
3 to 5
28 SO (0.330
″)/Tape & Reel
DS1689S
DS1689SN/T&R
-40
°C to +85°C
3 to 5
28 SO (0.330
″)/Tape & Reel
DS1689S
DS1689SN+T&R
-40
°C to +85°C
3 to 5
28 SO (0.330
″)/Tape & Reel
DS1689S
DS1693
0
°C to +70°C
3 to 5
28 EDIP (0.740
″)
DS1693
+ Denotes a lead-free/RoHS-compliant device.
* A “+” anywhere on the top mark denotes a lead-free/RoHS-compliant device. An “N” denotes an industrial temperature device.
DS1689/DS1693
3V/5V Serialized Real-Time Clocks
with NV RAM Control
www.maxim-ic.com
Encapsulated DIP
(740 Mils)
13
27
N.C.
AD0
AD2
AD3
AD4
AD5
AD6
AD7
GND
PWR
CEI
VCCO
SQW
N.C.
IRQ
PSEL
RD
N.C.
WR
ALE
KS
CS
1
2
3
4
5
6
7
8
9
10
11
12
14
28
26
25
24
23
22
21
20
19
18
17
15
16
N.C.
RCLR
AD1
VBAUX
CEO
VCCI
VBAUX
SO
(330 Mils)
13
27
1
2
3
4
5
6
7
8
9
10
11
12
14
28
26
25
24
23
22
21
20
19
18
17
15
16
CEI
VCCO
SQW
VBAT
IRQ
PSEL
RD
GND
WR
ALE
KS
CS
CEO
VCCI
X2
AD0
AD2
AD3
AD4
AD5
AD6
AD7
GND
PWR
X1
RCLR
AD1


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