Rev.2.4
_00
Absolute Maximum Ratings
Table 2
Parameter
Symbol
Applicable Pin
2-WIRE REAL-TIME CLOCK
S-35390A
Rating
Unit
Power supply voltage
V
DD
−
V
SS
−
0.3 to V
SS
+ 6.5
V
Input voltage
V
IN
SCL, SDA
V
SS
−
0.3 to V
SS
+ 6.5
V
V
SS
−
0.3 to V
SS
+ 6.5
Output voltage
V
OUT
V
SDA,
INT1,
INT2
Operating ambient
−
−
40 to +85
°
C
T
opr
temperature
*1
Storage temperature
T
stg
−
−
55 to +125
°
C
*1.
Conditions with no condensation or frost. Condensation and frost cause short circuiting between pins, resulting in a
malfunction.
Caution
The absolute maximum ratings are rated values exceeding which the product could suffer physical
damage. These values must therefore not be exceeded under any conditions.
Recommended Operation Conditions
Table 3
Parameter
Symbol
Conditions
Min.
Typ.
Max.
*1
Power supply voltage
V
DD
Ta =
−
40 to +85
°
C
1.3
3.0
5.5
Time keeping power
Ta =
−
40 to +85
°
C
V
DET
−
0.15
−
5.5
V
V
DDT
supply voltage
*2
Crystal oscillator C
L
value C
L
−
−
6
7
pF
*1.
The power supply voltage that allows communication under the conditions shown in
Table 8
of
“ AC Electrical
Characteristics”
.
*2.
The power supply voltage that allows time keeping. For the relationship with V
DET
(low power supply voltage
detection voltage), refer to
“ Characteristics (Typical Data)”
.
(V
SS
= 0 V)
Unit
V
Oscillation Characteristics
Table 4
(Ta = 25°C, V
DD
= 3.0 V, V
SS
= 0 V, VT-200 crystal oscillator (C
L
= 6 pF, 32.768 kHz) manufactured by Seiko Instruments Inc.)
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Oscillation start voltage V
STA
Within 10 seconds
1.1
−
5.5
V
Oscillation start time
t
STA
−
−
−
1
s
IC-to-IC frequency
δ
IC
−
−
10
−
+10
ppm
deviation
*1
Frequency voltage
δ
V
V
DD
= 1.3 to 5.5 V
−
3
−
+3
ppm/V
deviation
External capacitance
C
g
Applied to XIN pin
−
−
9.1
pF
Internal oscillation
C
d
Applied to XOUT pin
−
8
−
pF
capacitance
*1.
Reference value
Seiko Instruments Inc.
5
SII [ SEIKO INSTRUMENTS INC ]
