
DS1306
16 of 22
DC ELECTRICAL CHARACTERISTICS
(TA = Over the operating range, unless otherwise specified.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Leakage
ILI
-100
+500
A
Output Leakage
ILO
-1
+1
A
IOL = 1.5mA
VCC = 2.0
0.4
Logic 0 Output
IOL = 4.0mA
VOL
VCC = 5V
0.4
V
IOH = -0.4mA
VCCIF = 2.0V
1.6
Logic 1 Output
IOH = -1.0mA
VOH
VCCIF = 5V
2.4
V
Logic 1 Output Current
(INT1 pin)
IOH,
INT1
(VCC2, VBAT)
-0.3V
-100
A
VCC1 = 2.0V
0.425
VCC1 Active Supply Current
ICC1A
VCC1 = 5V
1.28
mA
2, 7
VCC1 = 2.0V
25.3
VCC1 Timekeeping Current
ICC1T
VCC1 = 5V
81
A
1, 7
VCC2 = 2.0V
0.4
VCC2 Active Supply Current
ICC2A
VCC2 = 5V
1.2
mA
2, 8
VCC2 = 2.0V
0.4
VCC2 Timekeeping Current
ICC2T
VCC2 = 5V
1
A
1, 8
Battery Timekeeping Current
IBAT
VBAT = 3V
550
nA
9
Battery Timekeeping Current
(IND)
IBAT
VBAT = 3V
800
nA
9
VCC Trip Point
VCCTP
VBAT -
50
VBAT +
200
mV
R1
2
R2
4
Trickle Charge Resistors
R3
8
k
Trickle Charger Diode Voltage
Drop
VTD
0.7
V
CAPACITANCE
(TA = +25C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Input Capacitance
CI
10
pF
Output Capacitance
CO
15
pF