ISL12020MIRZ-T7A Datasheet, PDF (9/34 Pages) Intersil Corporation – Low Power RTC with Battery Backed SRAM, Integrated ±5ppm Temperature Compensation and Auto Daylight Saving

ISL12020M
SDA vs SCL Timing
t_F
t_HIGH
t_LOW
t_R
SCL
t_SU:STA
SDA
(INPUT TIMING)
SDA
(OUTPUT TIMING)
t_SU:DAT
t_HD:STA
t_HD:DAT
t_AA ^tDH
t_SU:STO
t_BUF
EQUIVALENT AC OUTPUT LOAD CIRCUIT FOR V_DD = 5V
5.0V
SDA
AND
IRQ/F_OUT
1533
FOR V_OL= 0.4V
AND I_OL = 3mA
100pF
FIGURE 2. STANDARD OUTPUT LOAD FOR TESTING THE DEVICE
WITH V_DD = 5.0V
Symbol Table
WAVEFORM INPUTS
Must be steady
OUTPUTS
Will be steady
May change
from LO W
to HIGH
May change
from HIGH
to LO W
Don’t Care:
Changes Allowed
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not Known
N/A
Center Line is
High Impedance
Typical Performance Curves Temperature is +25°C unless otherwise specified.
1050
1600
1000
950
900
850
8001.8 _{2.3 2.8 3.3 3.8 4.3 4.8 5.3}
V_BAT VOLTAGE (V)
FIGURE 3. I_BAT vs V_BAT
1400
1200
V_BAT = 5.5V
1000
V_BAT = 3.0V
800
V_BAT = 1.8V
600-40
-20
0
20
40
60
80
TEMPERATURE (°C)
FIGURE 4. I_BAT vs TEMPERATURE
9
FN6667.5
December 13, 2011