Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA/SB
鈥?Builtin crystal unit allows adjustment-free efficient operation.
鈥?Automatic leap year correction.
鈥?Output selectable between 32.768 KHz/1 Hz.
鈥?Operating voltage range: 2.5V to 5.5V.
鈥?Supply voltage detection voltage: 1.7鹵0.3V.
鈥?Low current consumption: 1.0 碌A(chǔ)/2.0V (Max.)
Actual size
Specifications (characteristics)
Absolute Max. rating
Item
Symbol
V
DD
V
IN
V
OUT
T
STG
Condition
V
DD
-GND
-0.3
V
DD
+0.3
Output voltage
Storage temperature
Min.
Max.
7.0
V
Unit
Terminal connection
RTC-4543SA
14 13 12 11 10 9
8
Power source voltage
Input voltage
鈥?/div>
-55
+125
藲C
Operating range
Item
Operating voltage
Date holding voltage
Symbol
V
DD
V
CLK
T
OPR
Condition
Min.
2.5
Max.
5.5
+85
Unit
V
藲C
1
2 3
4 5
6
7
鈥?/div>
1.4
-40
RTC-4543SB
18 17 16 15 14 13 12 11 10
Operating temperature
Frequency characteristics
Item
Frequency tolerance
Frequency temperature
characteristics
Frequency voltage
characteristics
Symbol
鈭唂/fo
T
op
f
V
t
OSC
fa
Condition
Ta=25藲C, V
DD
=5V
-10 to +70藲C
Range
5鹵23
Unit
1
2 3
4 5
6
7
8
9
No. 4543SA
1
GND
2
N.C
3
CE
4
F
SEL
WR
5
F
OE
6
N.C
7
N.C
8
V
DD
9
CLK
10
DATA
11
N.C
12
N.C
13
F
OUT
14
鈥?/div>
15
鈥?/div>
16
鈥?/div>
17
鈥?/div>
18
4543SB
N.C
N.C
N.C
N.C
F
OE
WR
F
SEL
CE
GND
F
OUT
DATA
CLK
N.C
V
DD
N.C
N.C
N.C
N.C
ppm
+10/-120
鹵2
3
鹵5
ppm/V
s
ppm/year
Ta=25藲C, V
DD
=2.0 to 5.5V
Ta=25藲C, V
DD
=2.5V
First year Ta=25藲C, V
DD
=5V
External dimensions
RTC-4543SA
(SOP 14-pin)
R4543 B
E 607 6A
7.4鹵0.2
(Unit: mm)
Oscillation start time
Aging
Item
鈥淗鈥?input voltage
鈥淟鈥?input voltage
Input off-leak current
Symbol
Condition
Min.
Typ.
Max. Unit
鈥?/div>
0.8V
DD
WR, DATA, CE, CLK,
V
IH
F
OE
,F
SEL
pins
0.2V
DD
V
IL
鈥?/div>
0.5
I
OFF
WR, CE, CLK,
F
OE
,F
SEL
pins
4.5
V
OH1
V
DD
=5.0V I
OH
=-1.0 mA
鈥?/div>
鈥淗鈥?output voltage
鈥?/div>
2.5
V
OH2
V
DD
=3.0V DATA, F
OUT
pins
0.5
V
OL1
V
DD
=5.0V I
OH
=1.0 mA
鈥?/div>
鈥淟鈥?output voltage
0.8
V
OL2
V
DD
=3.0V DATA, F
OUT
pins
I
OZH
V
OUT
=5.5V
Output leak current
1.0
DATA, F
OUT
pins -1.0
I
OZL
V
OUT
=0V
Supply detection voltage
V
DT
2.0
1.4
1.7
鈥?/div>
C
L
30 pF(max.)
Output load conditions
F
OUT
pin
N
2LS-TTL
1 I
DD1
V
DD
=5.0V
1.5
3.0
CE="L", F
OE
="L"
2 I
DD2
V
DD
=3.0V
1.0
2.0
F
SEL
="H"
3 I
DD3
V
DD
=2.0V
0.5
1.0
Current
鈥?/div>
4 I
DD4
V
DD
=5.0V CE="L", F
OE
="H"
4.0
consumption
10.0
5 I
DD5
V
DD
=3.0V
2.5
6.5
F
SEL
="L"
6 I
DD6
V
DD
=2.0V
No load on the F
OUT
pin
1.5
4.0
V
3.1
3.2鹵0.1
碌A(chǔ)
V
10.1鹵0.2
0藲 to
10藲
0.6
5.0
DC characteristics
(V
DD
=5V鹵0.5V, Ta=-40 to 85藲C)
0.05 min.
0.15
RTC-4543SB
碌A(chǔ)
(SOP 18-pin)
V
E
607 6A
11.4鹵0.2
1.8
7.8鹵0.2
5.4
R4543 B
碌A(chǔ)
1.27
0.4
2.0 max.
0藲 to
10藲
0.05 min.
0.6
0.15
49
RTC-4543SB相關(guān)型號PDF文件下載
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