VT82885
Real Time Clock
VIA Technologies, Inc.
VOLTAGE ON ANY PIN RELATIVE TO GROUND -0.3V TO +7.0V
OPERATING TEMPERATURE
STORAGE TEMPERATURE
SOLDERING TEMPERATURE
0°C TO 70°C
-40°C TO +70°C
260°C FOR 10 SECONDS
*This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS (0°C TO 70°C)
PARAMETER
SYMBOL
MIN
4.5
TYP
5.0
MAX
5.5
UNITS
NOTES
Power Supply Voltage
Input Logic 1
V
V
V
V
1
1
1
CC
V
IH
2.2
V
+0.3
CC
Input Logic 0
V
IL
-0.3
+0.8
DC ELECTRICAL CHARACTERISTICS (0°C TO 70°C, V = 4.5 TO 5.5V)
CC
PARAMETER
SYMBOL
MIN
TYP
5
MAX
10
UNITS
mA
µA
NOTES
Power Supply Current
Input Leakage
I
2
3
CC1
I
IL
-1.0
-1.0
-1.0
-1.0
+1.0
+1.0
+500
I/O Leakage
I
LO
4
µA
Input Current
I
3
µA
MOT
Output @ 2.4V
Output @ 0.4V
Write Protect Voltage
I
mA
mA
V
1,5
1
OH
I
OL
4.0
4.5
V
4.0
4.25
TYP
TP
CAPACITANCE (t = 25°C)
A
PARAMETER
SYMBOL
MIN
MAX
UNITS
pF
NOTES
Input Capacitance
Output Capacitance
C
5
7
IN
C
OUT
pF
AC ELECTRICAL CHARACTERISTICS (0°C TO 70°C, V = 4.5V TO 5.5V)
CC
PARAMETER
Cycle Time
SYMBOL
MIN
385
150
TYP
MAX
DC
UNITS
ns
NOTES
t
CYC
Pulse Width, DS/E Low or
RD/WR# High
PW
ns
EL
11
ETC [ ETC ]
