RTC4543 ETC, RTC4543 Datasheet
RTC4543
Manufacturer Part Number
RTC4543
Description
SERIAL-INTERFACE REAL TIME CLOCK MODULE
Manufacturer
ETC
Datasheet
1.RTC4543.pdf
(2 pages)
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49
• 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.)
Real time clock module
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC-4543SA/SB
Frequency tolerance
Frequency temperature
characteristics
Frequency voltage
characteristics
Oscillation start time
Aging
Power source voltage
Input voltage
Output voltage
Storage temperature
Operating voltage
Date holding voltage
Operating temperature
“H” input voltage
“L” input voltage
Input off-leak current
“H” output voltage
“L” output voltage
Output leak current
Supply detection voltage
Output load conditions
Current
consumption
Frequency characteristics
Specifications (characteristics)
Absolute Max. rating
Operating range
DC characteristics
Item
Item
Item
Item
1
2
3
4
5
6
Symbol
V
V
V
V
I
I
V
I
I
I
I
I
I
V
I
V
OZH
C
DD1
DD2
DD3
DD4
DD5
DD6
OFF
OZL
N
Symbol
Symbol
OH1
OH2
OL1
OL2
Symbol
DT
IH
IL
L
V
T
T
V
V
V
V
t
T
OUT
STG
OPR
OSC
CLK
f/fo
f
fa
DD
DD
IN
op
V
V
V
V
V
V
V
V
V
V
V
V
V
WR, CE, CLK, F
OUT
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
OUT
WR, DATA, CE, CLK,
=5.0V
=3.0V
=5.0V
=3.0V
=5.0V
=3.0V
=2.0V
=5.0V
=3.0V
=2.0V
=5.5V
=0V
Ta=25˚C, V
First year Ta=25˚C, V
F
Condition
V
OE
Condition
Condition
DD
Ta=25˚C, V
Ta=25˚C, V
F
,F
OUT
No load on the F
—
I
DATA, F
I
DATA, F
DATA, F
-GND
-10 to +70˚C
OH
CE="L", F
OH
—
SEL
CE="L", F
—
Condition
=1.0 mA
pin
=-1.0 mA
F
F
pins
OE
SEL
SEL
DD
,F
=2.0 to 5.5V
OUT
="H"
="L"
SEL
OUT
OUT
DD
OE
OE
DD
=2.5V
="H"
pins
pins
pins
pins
="L"
OUT
=5V
DD
pin
Min.
-0.3
-55
Min.
=5V
(V
2.5
1.4
-40
0.8V
DD
Min.
-1.0
4.5
2.5
1.4
—
—
—
=5V±0.5V, Ta=-40 to 85˚C)
DD
+10/-120
30 pF(max.)
Range
5±23
2LS-TTL
±2
±5
V
Typ. Max. Unit
1.5
1.0
0.5
4.0
2.5
1.5
3
—
1.7
Max.
Max.
DD
+125
+85
5.5
7.0
+0.3
0.2V
10.0
0.5
0.5
0.8
1.0
2.0
3.0
2.0
1.0
6.5
4.0
ppm/year
—
—
ppm/V
DD
ppm
Unit
Unit
Unit
s
˚C
˚C
V
V
V
V
V
A
A
A
Terminal connection
External dimensions
18 17 16 15 14 13
1
RTC-4543SA
RTC-4543SB
14 13 12 11 10 9
1
RTC-4543SA
RTC-4543SB
2 3
2 3
R4543 B
4 5 6
E
R4543 B
E
1.27
4 5 6
10.1 0.2
11.4 0.2
607 6A
607 6A
12
7
11
8
7
8
(SOP 14-pin)
(SOP 18-pin)
10
9
0.4
Actual size
0˚ to
10˚
0.6
No.
10
11
12
13
14
15
16
17
18
0.6
1
2
3
4
5
6
7
8
9
0˚ to
10˚
0.05 min.
4543SA
DATA
GND
F
CLK
F
N.C
WR
N.C
N.C
V
N.C
N.C
F
CE
—
—
—
—
SEL
OUT
OE
DD
0.05 min.
0.15
4543SB
DATA
GND
F
CLK
N.C
N.C
N.C
N.C
WR
F
N.C
V
N.C
N.C
N.C
N.C
F
CE
OUT
SEL
OE
DD
(Unit: mm)
0.15
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RTC4543 Summary of contents
Page 1
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 ...
Page 2
Register table MSB Seconds (0 to 59) FDT s 40 Minutes ( Hour (0 to 23) Day of the week ( Day (1 to 31) Month (1 to 12) TM year (0 to 99) ...