ISL12032 Datasheet, PDF (5/26 Pages) Intersil Corporation – Low Power RTC with Battery Backed SRAM and 50/60 Cycle AC Input and Xtal Back-up

ISL12032
DC Operating Characteristics Specifications apply for: V_DD = 2.7V to 5.5V, T_A = -40°C to +85°C, unless otherwise stated. (Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
(Note 10) (Note 4) (Note 10) UNITS NOTES
IRQ/ACRDY/LV/EVDET (OPEN DRAIN OUTPUTS)
V_OL
Output Low Voltage
F_OUT (CMOS OUTPUT)
V_OL
Output Low Voltage
V_OH
Output High Voltage
EVIN
V_DD = 5V, I_OL = 3mA
V_DD = 2.7V, I_OL = 1mA
I_OH = 1mA
0.7 x V_DD
0.4
V
0.4
V
0.3 x V_DD
V
V
I_EVPU
V_IL
V_IH
I_EVPD
EVIN Pull-up Current
V_DD = 5.5V, VBAT = 3.0V
1.0
3.0
8.0
µA
V_DD = 0V, VBAT = 1.8V
100
600
nA
Input Low Voltage
0.3 x V_DD
V
Input High Voltage
0.7 x V_DD
V
EVIN Disabled Pull-down Current V_DD = 5.5V
200
nA
Power-Down Timing Specifications apply for: V_DD = 2.7V to 5.5V, T_A = -40°C to +85°C, unless otherwise stated.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
(Note 10) (Note 4) (Note 10) UNITS
V_{DD SR-}
V_DD Negative Slew Rate
10
V/ms
I²C Interface Specifications Specifications apply for: V_DD = 2.7V to 5.5V, T_A = -40°C to +85°C, unless otherwise stated.
NOTES
6
SYMBOL
V_IL
V_IH
Hysteresis
V_OL
C_PIN
f_SCL
t_IN
t_AA
t_BUF
t_LOW
PARAMETER
TEST CONDITIONS
SDA and SCL Input Buffer LOW
Voltage
SDA and SCL Input Buffer HIGH
Voltage
SDA and SCL Input Buffer
Hysteresis
SDA Output Buffer LOW Voltage, V_DD = 5V, I_OL = 3mA
Sinking 3mA
SDA and SCL Pin Capacitance
SCL Frequency
T_A = +25°C, f = 1MHz,
V_DD = 5V, V_IN = 0V,
V_OUT = 0V
Pulse Width Suppression Time at Any pulse narrower than the
SDA and SCL Inputs
max spec is suppressed.
SCL Falling Edge to SDA Output
Data Valid
SCL falling edge crossing
30% of V_DD, until SDA exits
the 30% to 70% of V_DD
window.
Time the Bus Must be Free Before
the Start of a New Transmission
SDA crossing 70% of V_DD
during a STOP condition, to
SDA crossing 70% of V_DD
during the following START
condition.
Clock LOW Time
Measured at the 30% of V_DD
crossing.
MIN
(Note 10)
-0.3
0.7 x V_DD
0.05 x V_DD
1300
1300
TYP
MAX
(Note 4) (Note 10) UNITS
0.3 x V_DD V
V_DD + 0.3 V
V
0.4
V
10
pF
400
kHz
50
ns
900
ns
ns
ns
NOTES
5
FN6618.2
April 16, 2009