RTC-4543SA Просмотр технического описания (PDF) - Unspecified
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RTC-4543SA Datasheet PDF : 2 Pages
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Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA/SB
• Builtin crystal unit allows adjustment-free efficient operation.
• Automatic leap year correction.
• Output selectable between 32.768 KHz/1 Hz.
• Operating voltage range: 2.5V to 5.5V.
• Supply voltage detection voltage: 1.7±0.3V.
• Low current consumption: 1.0 µA/2.0V (Max.)
Actual size
Specifications (characteristics)
Absolute Max. rating
Item
Symbol Condition
Min.
Power source voltage
VDD
VDD-GND
Input voltage
VIN
-0.3
Output voltage
VOUT
—
Storage temperature TSTG
-55
Max. Unit
7.0
V
VDD+0.3
+125
˚C
Operating range
Item
Symbol
Operating voltage
VDD
Date holding voltage VCLK
Operating temperature TOPR
Condition
—
Min.
Max. Unit
2.5
5.5
V
1.4
-40
+85
˚C
Frequency characteristics
Item
Symbol
Condition
Range
Unit
Frequency tolerance ∆f/fo
Frequency temperature
characteristics
Top
Ta=25˚C, VDD=5V
-10 to +70˚C
5±23
+10/-120
ppm
Frequency voltage
characteristics
fV Ta=25˚C, VDD=2.0 to 5.5V ±2
Oscillation start time
tOSC
Ta=25˚C, VDD=2.5V
3
ppm/V
s
Aging
fa
First year Ta=25˚C, VDD=5V
±5 ppm/year
DC characteristics
(VDD=5V±0.5V, Ta=-40 to 85˚C)
Item
Symbol
Condition
Min. Typ. Max. Unit
“H” input voltage
VIH
WR, DATA, CE, CLK, 0.8VDD
“L” input voltage
VIL
FOE,FSEL pins
—
Input off-leak current IOFF WR, CE, CLK, FOE,FSEL pins
—
0.2VDD V
0.5 µA
“H” output voltage
“L” output voltage
VOH1 VDD=5.0V IOH=-1.0 mA
4.5
VOH2 VDD=3.0V DATA, FOUT pins 2.5
VOL1 VDD=5.0V IOH=1.0 mA
—
—
—
0.5
V
VOL2 VDD=3.0V DATA, FOUT pins
0.8
Output leak current
IOZH
IOZL
VOUT=5.5V
VOUT=0V
DATA, FOUT pins
-1.0
1.0 µA
Supply detection voltage VDT
—
1.4 1.7 2.0
Output load conditions CL
N
FOUT pin
30 pF(max.)
V
2LS-TTL
Current
consumption
1 IDD1 VDD=5.0V
1.5 3.0
2
3
IDD2
IDD3
VDD=3.0V
VDD=2.0V
CE="L", FOE="L"
FSEL="H"
1.0 2.0
0.5 1.0
4 IDD4 VDD=5.0V CE="L", FOE="H" — 4.0 10.0 µA
5 IDD5 VDD=3.0V
FSEL="L"
2.5 6.5
6 IDD6 VDD=2.0V No load on the FOUT pin
1.5 4.0
49
Terminal connection
RTC-4543SA
14 13 12 11 10 9 8
123 456 7
RTC-4543SB
18 17 16 15 14 13 12 11 10
123 456789
No. 4543SA
1 GND
2 N.C
3 CE
4
FSEL
5 WR
6
FOE
7 N.C
8 N.C
9
VDD
10 CLK
11 DATA
12 N.C
13 N.C
14 FOUT
15 —
16 —
17 —
18 —
4543SB
N.C
N.C
N.C
N.C
FOE
WR
FSEL
CE
GND
FOUT
DATA
CLK
N.C
VDD
N.C
N.C
N.C
N.C
External dimensions
RTC-4543SA (SOP 14-pin)
R4543 B
E 607 6A
(Unit: mm)
10.1±0.2
0˚ to
10˚
0.6
RTC-4543SB (SOP 18-pin)
0.05 min.
0.15
R4543 B
E 607 6A
11.4±0.2
0˚ to
10˚
1.27
0.4
0.6
0.05 min.
0.15
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