DS1685/DS1687 3V/5V Real-Time Clocks
25 of 34
DC ELECTRICAL CHARACTERISTICS
(VCC = 5.0V±10% or VCC = 3.0V±10%, TA = 0°C to +70°C, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Average VCC Power-
Supply Current
(-5)
2B
ICC1
7
15
mA
2, 3
(-3)
5
10
CMOS Standby
Current
(CS = VCC - 0.2V)
(-5)
3B
ICC2
1
3
mA
2, 3
(-3)
0.5
2
Input Leakage Current
(Any Input)
IIL
-1
+1
A
Output Leakage Current
IOL
-1
+1
A
5
Output Logic 1 Voltage
(IOUT = -1.0mA)
VOH
2.4
V
Output Logic 0 Voltage
(IOUT = +2.1mA)
VOL
0.4
V
Power-Fail Trip Point
(-5)
VPF
4.25
4.37
4.5
V
(-3)
2.5
2.6
2.7
Battery Switch
Voltage
(-5)
VSW
VBAT,
VBAUX
V
8
Battery Leakage Current
IBATLKG
10
100
nA
12
I/O Leakage
ILO
-1
+1
A
4
PWR
Output at 0.4V
(-5)
IOLPWR
10.0
mA
1
(-3)
4
IRQ
Output at 0.4V
(-5)
IOLIRQ
2.1
mA
1
(-3)
0.8
DC ELECTRICAL CHARACTERISTICS
(
VCC = 0V, TA = 0°C to +70°C, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
VBAT, VBAUX Current
(OSC ON, E32K = 0)
IBAT1
500
nA
12
VBAT, VBAUX Current
(OSC OFF)
IBAT2
200
nA
12