Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4513
•Builtin crystal unit allows adjustment-free efficient operation.
•Using a serial interface, controllable only three signal lines.
•Automatic leap year correction.
•30 second adjustment, available.
•Wide operating voltage from 2.7V to 5.5V.
Actual size
Specifications (characteristics)
Absolute Max. rating
Item |
Symbol |
Condition |
Min. |
Max. |
Unit |
Power source voltage |
VDD |
VDD-GND |
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7.0 |
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Input voltage |
VIN |
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-0.3 |
VDD+0.3 |
V |
Output voltage |
VOUT |
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Storage temperature |
TSTG |
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-55 |
+125 |
˚C |
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Operating range
Item |
Symbol |
Condition |
Min. |
Typ. |
Max. |
Unit |
Operating voltage |
VDD |
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2.7 |
5.0 |
5.5 |
V |
Date holding voltage |
VCLK |
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2.0 |
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Operating temperature |
TOPR |
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-40 |
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+85 |
˚C |
Terminal connection
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14 13 12 11 10 |
9 |
8 |
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No. |
Pin terminal |
No. |
Pin terminal |
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1 |
N.C |
14 |
N.C |
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2 |
DATA |
13 |
CLK |
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3 |
STD.P |
12 |
CE |
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4 |
N.C |
11 |
N.C |
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5 |
N.C |
10 |
N.C |
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6 |
VDD |
9 |
GND |
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7 |
N.C |
8 |
N.C |
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2 |
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4 |
5 |
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Frequency characteristics
Item |
Symbol |
Condition |
Range |
Unit |
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Frequency tolerance |
f/fo |
Ta=25˚C, VDD=3V |
0±25 |
ppm |
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Frequency temperature |
Top |
-10 to +70˚C |
+10/-120 |
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characteristics |
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f-V characteristics |
fV |
Ta=25˚C, VDD=2.0 to 5.5V |
±5 |
ppm/V |
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Aging |
fa |
First year Ta=25˚C, VDD=3V |
ppm/year |
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Electrical characteristics
Item |
Symbol |
Condition |
Min. |
Typ. |
Max. |
Unit |
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“H” input voltage |
VIH |
— |
0.8VDD |
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V |
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“L” input voltage |
VIL |
— |
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0.2VDD |
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Input leak current 1 |
IIL1 |
VIN=VDD/GND (CE,CLK) |
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1/-1 |
µA |
Input leak current 2 |
IIL2 |
VIN=VDD/GND (DATA) |
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10/-10 |
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“L” output voltage 1 |
VOL1 |
IO=1mA (DATA) |
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0.2VDD |
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“H” output voltage |
VOH |
IO=-400µA (DATA) |
0.8VDD |
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V |
“L” output voltage 2 |
VOL2 |
IO=1mA (STD.P) |
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0.2VDD |
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Off leak current |
IOFLK |
VO=VDD |
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10.0 |
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Current consumption 1 |
IDD1 |
VDD=5V, VIN (CE) =0V |
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10.0 |
20.0 |
µA |
Current consumption 2 |
IDD2 |
VDD=3V, VIN (CE) =0V |
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2.5 |
5.0 |
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Current consumption 3 |
IDD3 |
VDD=2V, VIN (CE) =0V |
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1.0 |
2.0 |
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External dimensions |
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(Unit: mm) |
R4513 |
7.4±0.2 |
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5.0 |
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E 607 6A |
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10.1±0.2 |
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3.1 |
3.2±0.1 |
0˚ to |
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10˚ |
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0.05 min. |
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0.6 |
0.15 |
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47
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