ISL12008 Datasheet, PDF (3/19 Pages) Intersil Corporation – I2C Real Time Clock with Battery Backup

ISL12008
Absolute Maximum Ratings
Voltage on V_DD, V_BAT, SCL, SDA, and FT/OUT Pins
(Respect to GND). . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6.5V
Voltage on X1 and X2 Pins
(Respect to GND)
V_DD Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V_DD + 0.5
V_BAT Mode . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V_BAT + 0.5
Thermal Information
Thermal Resistance (Typical, Note 1)
θ_JA (°C/W)
8 Lead SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
115
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTE:
1. θ_JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
DC Operating Characteristics – RTC Temperature = -40°C to +85°C. Recommended Operating Conditions, unless
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
(Note 8) (Note 5) (Note 8) UNITS
V_DD
V_BAT
I_DD1
I_DD2
I_DD3
I_BAT
I_LI
I_LO
V_TRIP
V_TRIPHYS
V_BATHYS
FT/OUT
Main Power Supply
Battery Supply Voltage
Supply Current
Supply Current With I²C Active
Supply Current (Low Power Mode)
Battery Supply Current
Input Leakage Current on SCL
I/O Leakage Current on SDA
V_BAT Mode Threshold
V_TRIP Hysteresis
V_BAT Hysteresis
V_DD = 5V
V_DD = 3V
V_DD = 5V
V_DD = 5V, LPMODE = 1
V_BAT = 3V, +25°C
2.7
5.5
V
1.8
5.5
V
2.8
6
µA
1.6
4
µA
40
120
µA
2.3
5
µA
800
950
nA
-1
0.1
+1
µA
-1
0.1
+1
µA
2.3
2.6
2.9
V
36
mV
53
mV
V_OL
Output Low Voltage
V_DD = 5V
I_OL = 3mA
V_DD = 2.7V
I_OL = 1mA
0.02
0.4
V
0.02
0.4
V
NOTES
2, 3
2, 3
2
2
6
6
Power-Down Timing
Temperature = -40°C to +85°C. Recommended Operating Conditions unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
(Note 8) (Note 5) (Note 8) UNITS
V_{DD SR-}
V_DD Negative Slewrate
5
V/ms
NOTES
4
Serial Interface Specifications Recommended Operating Conditions. Unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
(Note 8) (Note 5) (Note 8) UNITS NOTES
SERIAL INTERFACE SPECS
V_IL
SDA and SCL Input Buffer LOW Voltage
-0.3
0.3 x V_DD V
V_IH SDA and SCL Input Buffer HIGH Voltage
0.7 x V_DD
V_DD + 0.3 V
Hysteresis SDA and SCL Input Buffer Hysteresis
0.05 x
V_DD
V
6, 7
V_OL SDA Output Buffer LOW Voltage, Sinking 3mA
0
0.02
0.4
V
Cpin SDA and SCL Pin Capacitance
T_A = +25°C, f = 1MHz, V_DD = 5V,
V_IN = 0V, V_OUT = 0V
10
pF 6, 7
3
FN6690.1
September 26, 2008