DS1305
DC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.)
PARAMETER
SYMBOL
MIN
-100
-1
TYP
MAX
+500
1
UNITS NOTES
µA
µA
Input Leakage
ILI
Output Leakage
ILO
IOL= 1.5mA
OL = 4.0mA
IOH = -0.4mA
OH = -1.0mA
VCC = 2.0V
0.4
Logic 0
Output
VOL
VOH
V
I
VCC = 5V
0.4
VCCIF = 2.0V
VCCIF = 5V
VCC1 = 2.0V
VCC1 = 5V
VCC1 = 2.0V
VCC1 = 5V
VCC1 = 2.0V
VCC1 = 5V
VCC2 = 2.0V
VCC2 = 5V
VCC2 = 2.0V
1.6
2.4
Logic 1
Output
V
I
0.425
1.28
25.3
81
VCC1 Active Supply Current
ICC1A
ICC1T
ICC1S
ICC2A
ICC2T
ICC2S
mA
μA
μA
mA
µA
nA
2, 8
VCC1 Timekeeping Current
(Osc on)
1, 8, 12
6, 8, 12
2, 9
25
VCC1 Standby Current
(Osc off)
80
0.4
1.2
0.3
1
VCC2 Active Supply Current
VCC2 Timekeeping Current
(Osc on)
1, 9, 12
6, 9, 12
V
CC2 = 5V
VCC2 = 2.0V
CC2 = 5V
200
200
400
200
VCC2 Standby Current
(Osc off)
V
Battery Timekeeping Current
Battery Standby Current
IBAT
VBAT = 3V
VBAT = 3V
nA
nA
10, 12
10, 12
IBATS
VBAT
200
+
VCC Trip Point
VCCTP
VBAT - 50
mV
k
V
R1
R2
R3
2
4
8
Trickle Charge Resistors
Trickle Charge Diode
Voltage Drop
VTD
0.7
CAPACITANCE
(TA = +25C)
PARAMETER
SYMBOL
MIN
TYP
10
15
MAX
UNITS
NOTES
Input Capacitance
CI
pF
pF
Output Capacitance
CO
16 of 22
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
