RTC - 4543 SA/SB
Page - 3 MQ - 252 - 03
5. Electrical Characteristics
5-1. Absolute Maximum Ratings
Item Symbol Conditions Min. Max. Unit
Supply voltage V
DD
-0.3 7.0 V
Input voltage V
I
Ta=+25
°
C
GND-0.3 V
DD
+0.3 V
Output voltage V
O
GND-0.3 V
DD
+0.3 V
Storage temperature T
STG
- -55 +125
°
C
5-2. Operating Condition
Item Symbol Conditions Min. Max. Unit
Operating supply
voltage
V
DD
- 2.5 5.5 V
Data holding voltage V
CLK
- 1.4 5.5 V
Operating temperature T
OPR
No condensation
-40 +85
°
C
5-3. Frequency Characteristics
Item Symbol Conditions Max. Unit
Frequency tolerance
∆
f/f
O
Ta=+25
°
C , V
DD
=5.0 V 5
±
23 *
×
10
-6
Frequency temperature
characteristics
T
op
-10to+70
°
C +25
°
C ref
+ 10 / - 120
×
10
-6
Frequency voltage
characteristics
f/V
Ta=+25
°
C , V
DD
=2.0 to 5.5 V
±
2
×
10
-6
/V
Oscillation start time t
STA
Ta=+25
°
C , V
DD
=2.5 V
3 s
Aging fa
Ta=+25
°
C , V
DD
=5 V , first year
±
5
×
10
-6
* Monthly deviation: Approx. 1 min.
5-4. DC Characteristics
Unless specified otherwise: V
DD
= 5 V
±
10 %, Ta = - 40 to +85
°
C
Item Symbol Conditions Min. Typ. Max. Unit
Current consumption(1) I
DD
1 V
DD
=5.0 V
CE=L , FOE=L
1.5 3.0
µ
A
Current consumption(2) I
DD
2 V
DD
=3.0 V
FSEL=H
1.0 2.0
µ
A
Current consumption(3) I
DD
3 V
DD
=2.0 V
0.5 1.0
µ
A
Current consumption(4) I
DD
4 V
DD
=5.0 V
CE=L , FOE=H
4.0 10.0
µ
A
Current consumption(5) I
DD
5 V
DD
=3.0 V
FSEL=L
2.5 6.5
µ
A
Current consumption(6) I
DD
6 V
DD
=2.0 V
No load on the
FOUT pin
1.5 4.0
µ
A
Input voltage V
IH
WR,DATA,CE,CLK,
0.8 V
DD
V
V
IL
FOE,FSEL pins
0.2 V
DD
V
Input off/leak current
I
OFF
WR,CE,CLK,FOE,FSEL pins
V
IN
= V
DD
or GND
0.5
µ
A
V
OH(1)
V
DD
=5.0 V I
OH
=-1.0 mA 4.5 V
Output voltage V
OH(2)
V
DD
=3.0 V
DATA , FOUT pins
2.0 V
V
OL(1)
V
DD
=5.0 V I
OL
= 1.0 mA 0.5 V
V
OL(2)
V
DD
=3.0 V
DATA , FOUT pins
0.8 V
Output load condition
( fanout )
N / CL
FOUT pin
2 LSTTL / 30 pF Max.
Output leak current I
OZH
V
OUT
=5.5 V
DATA , FOUT pins
-1.0 1.0
µ
A
I
OZL
V
OUT
=0 V
DATA , FOUT pins
-1.0 1.0
µ
A
Supply voltage detection
voltage
V
DT
- 1.4 1.7 2.0 V