R2051S02-E2-F Datasheet, PDF (4/49 Pages) RICOH electronics devices division – High precision I2 C-Bus Real-Time Clock Module

R2025S/D
ABSOLUTE MAXIMUM RATINGS
Symbol
VDD
VI
VO
PD
Topt
Tstg
Item
Supply Voltage
Input Voltage 1
Input Voltage 2
Output Voltage 1
Output Voltage 2
Power Dissipation
Operating
Temperature
Storage Temperature
Pin Name and Condition
VDD
SCL, SDA, CLKC
VPP
SDA, /INTRA, /INTRB
32KOUT
Topt=25°C
(VSS=0V)
Description
-0.3 to +6.5
-0.3 to +6.5
-0.3 to VDD+0.3
-0.3 to +6.5
-0.3 to VDD+0.3
300
-40 to +85
-55 to +125
Unit
V
V
V
mW
°C
°C
RECOMMENDED OPERATING CONDITION
Symbol
VDD
VCLK
VPUP
RPUP
Item
Supply Voltage
Time Keeping Voltage
Pull-up Voltage
Pull-up resister
Pin Name
SCL, SDA, /INTRA, /INTRB
CLKC
(VSS=0V, Topt=-40 to +85°C)
Min. Typ. Max. Unit
1.7
5.5
V
1.15
5.5
V
5.5
V
10
kΩ
FREQUENCY CHARACTERISTICS
Symbol
∆f/f0
Fv
Top
tsta
fa
Item
Frequency Deviation
Frequency Voltage
Characteristics
Frequency
Temperature
Characteristics
Oscillation Start-up
Time
Aging
Condition
Topt=25°C, VDD=3V
Topt=25°C,
VDD=2.0V to 5.5V
Topt=-20°C to +70°C
25°C as standard
Topt=25°C, VDD=2V
Topt=25°C, VDD=3V,
First year
(VSS=0V)
Min. Typ.
-5
0
-1
Max.
+5
+1
Unit
ppm
ppm
-120
+10 ppm
1
sec
-5
+5
ppm
4