SM8577B Datasheet, PDF (3/10 Pages) Nippon Precision Circuits Inc – Real-time Clock IC

SM8577B
SPECIFICATIONS
Absolute Maximum Ratings
V_SS = 0 V
Parameter
Supply voltage range
Input voltage range
Output voltage range
Storage temperature range
Power dissipation
Soldering temperature
Soldering time
Symbol
V_DD
V _IN
V_OUT
T _stg
P_D
T _sld
t_sld
Condition
Rating
Unit
−0.3 to 7.0
V
V_SS − 0.3 to V_DD + 0.3
V
V_SS − 0.3 to V_DD + 0.3
V
−55 to 125
°C
150
mW
255
°C
10
s
Recommended Operating Conditions
V_SS = 0 V
Parameter
Supply voltage range
Operating temperature range
Symbol
V_DD
T_opr
Condition
Rating
Unit
2.5 to 5.5
V
−40 to 85
°C
Oscillator Characteristics
V_SS = 0 V, T_a = 25 °C, C_G = 12 pF, Seiko Epson C-002SH crystal (C_I = 30 kΩ, C_L = 6 pF) unless otherwise
noted
Parameter
Oscillator start time
Oscillator start voltage
Oscillator stop voltage
Frequency voltage characteristic
Frequency accuracy
Output capacitance
Symbol
t_STA
V_STA
V _STO
f/V
ε
C_D
Condition
V_DD = 2.5 V
V_DD = 2.0 to 5.5 V
V_DD = 5.0 V
V_DD = 5.0 V
Rating
Unit
min
typ
max
–
–
3
s
1.5
–
–
V
–
–
1.5
V
−2
–
+2
ppm/V
−10
–
+10
ppm
–
12
–
pF
NIPPON PRECISION CIRCUITS—3