Datasheet

DS1305
DC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage
I
LI
-100
+500
µA
Output Leakage
I
LO
-1
1
µA
Logic 0
Output
I
OL
= 1.5mA
V
OL
V
CC
= 2.0V
0.4
V
I
OL
= 4.0mA
V
CC
= 5V
0.4
Logic 1
Output
I
OH
= -0.4mA
V
OH
V
CCIF
= 2.0V
1.6
V
I
OH
= -1.0mA
V
CCIF
= 5V
2.4
V
CC1
Active Supply Current I
CC1A
V
CC1
= 2.0V
0.425
mA 2, 8
V
CC1
= 5V
1.28
V
CC1
Timekeeping Current
(Osc on)
I
CC1T
V
CC1
= 2.0V
25.3
μA 1, 8, 12
V
CC1
= 5V
81
V
CC1
Standby Current
(Osc off)
I
CC1S
V
CC1
= 2.0V
25
μA 6, 8, 12
V
CC1
= 5V
80
V
CC2
Active Supply Current I
CC2A
V
CC2
= 2.0V
0.4
mA 2, 9
V
CC2
= 5V
1.2
V
CC2
Timekeeping Current
(Osc on)
I
CC2T
V
CC2
= 2.0V
0.3
µA 1, 9, 12
V
CC2
= 5V
1
V
CC2
Standby Current
(Osc off)
I
CC2S
V
CC2
= 2.0V
200
nA 6, 9, 12
V
CC2
= 5V
200
Battery Timekeeping Current
I
BAT
V
BAT
= 3V
400
nA
10, 12
Battery Standby Current
I
BATS
V
BAT
= 3V
200
nA
10, 12
V
CC
Trip Point V
CCTP
V
BAT
- 50
V
BAT
+
200
mV
Trickle Charge Resistors
R1
2
kΩ
R2
4
R3
8
Trickle Charge Diode
Voltage Drop
V
TD
0.7 V
CAPACITANCE
(T
A
= +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
C
I
10
pF
Output Capacitance
C
O
15
pF
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