Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA / SB
Product number (please refer to page 5)
Q4145435x000200
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Q4145436x000200
Built-in crystal unit allows adjustment-free efficient operation.
Automatic leap year correction.
Output selectable between 32.768 kHz / 1 Hz.
Supply voltage detection voltage: 1.7 V ±0.3 V.
Available for lead (Pb) - free soldering.
Available for lead (Pb) - free terminal.
RTC-4543SA
RTC-4543SB
Actual size
The details are mentioned in the application manual.
Specifications (characteristics)
Absolute Max. rating
Item
Supply voltage
Input voltage
Output voltage
Storage temperature
Symbol
VDD
VIN
VOUT
TSTG
Terminal connection
Condition
VDD to GND
−
−
Min.
Max.
7.0
Unit
Stored as bare product
after unpacking
-55
+125
°C
Min.
2.5
1.4
-40
Max.
Unit
5.5
V
+85
°C
#7
No.
1
2
3
4
5
6
7
#18
#10
#1
#9
Frequency characteristics
Item
Frequency tolerance
Oscillation start-up time
Symbol
Δf/f
tSTA
Condition
Ta = +25 °C, VDD = 5 V
Ta = +25 °C, VDD = 2.5
Frequency temperature
characteristics
Top
Ta = -10 °C to +70 °C
Reference at +25 °C
+10 / -120
Ta = +25 °C, VDD = 2.0 V to 5.5 V
±2.0
x 10-6 / V
First year Ta = +25 °C, VDD = 5 V
±5.0
No.
14
13
12
11
10
9
8
Pin terminal
FOUT
N.C
N.C
DATA
CLK
VDD
N.C
Pin terminal
N.C
N.C
N.C
N.C
FOE
WR
FSEL
CE
GND
No.
18
17
16
15
14
13
12
11
10
Pin terminal
N.C
N.C
N.C
N.C
VDD
N.C
CLK
DATA
FOUT
x 10-6
x 10-6 / year
f/V
fa
External dimensions
(SOP 14-pin)
∗ Please ask tighter tolerance.
Max. Unit
3.0
2.0
1.0
µA
10.0
6.5
4.0
−
V
0.2VDD
5.0
10.1±0.2
1.27
0.35
1.7
−
2LS-TTL
0.05 Min.
0.6
0.15
(SOP 18-pin)
−
0.5
0.8
2.0
30
0° to
10°
V
7.8±0.2
Typ.
1.5
1.0
0.5
4.0
2.5
1.5
3.1
3.2±0.1
Condition
Min.
VDD = 5.0 V
CE =”L”, FOE =”L”
VDD = 3.0 V
FSEL =”H”
VDD = 2.0 V
−
VDD = 5.0 V CE =”L”, FOE =”H”
VDD = 3.0 V
FSEL =”L”
VDD = 2.0 V No load on the FOUT pin
0.8 VDD
WR, DATA, CE, CLK,
FOE, FSEL pins
−
____
VDD = 5.0 V I OH = -1.0 mA 4.5
VDD = 3.0 V DATA, FOUT pins 2.5
VDD = 5.0 V IOL = 1.0 mA
−
VDD = 3.0 V DATA, FOUT pins
1.4
−
FOUT pin
5.4
Symbol
IDD1
IDD2
Current
IDD3
consumption
IDD4
IDD5
IDD6
“H” input voltage
VIH
“L” input voltage
VIL
VOH1
“H” output voltage
VOH2
VOL1
“L” output voltage
VOL2
Supply detection voltage VDT
CL
Output load conditions
N
1
2
3
4
5
6
(VDD = 5 V ±0.5 V, Ta = -40 °C to +85 °C)
11.4±0.2
V
pF
1.8
DC characteristics
Item
(Unit: mm)
1.27
0.4
2.0 Max.
Aging
7.4±0.2
Frequency voltage
characteristics
Range
Unit
B: 5 ±23∗ x 10-6
3 Max.
s
Pin terminal
GND
N.C
CE
FSEL
WR
FOE
N.C
No.
1
2
3
4
5
6
7
8
9
V
VDD +0.3
Operating range
Item
Symbol
Condition
Power voltage
VDD
−
Clock voltage
VCLK
−
Operating temperature VOPR No condensation
#8
#1
-0.3
#14
0° to 10°
0.6
0.15
0 Min.
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
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