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DS3232M
±5ppm, I2C Real-Time Clock with SRAM
3
Maxim Integrated
DC ELECTRICAL CHARACTERISTICS—GENERAL (continued)
(VCC = +2.3V to +4.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = +3.3V, VBAT = +3.0V, and
TA = +25NC, unless otherwise noted.) (Note 2)
DC ELECTRICAL CHARACTERISTICS—VBAT CURRENT CONSUMPTION
(VCC = 0V, VBAT = +2.3V to +4.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = 0V, VBAT = +3.0V, and
TA = +25NC, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Temperature Conversion Current
(I2C Inactive)
ICCSCONV
200
350
A
Power-Fail Voltage
VPF
2.45
2.575
2.70
V
Logic 0 Output
(32KHZ, INT/SQW, SDA)
VOL
IOL = 3mA
0.4
V
Logic 0 Output (RST)
VOL
IOL = 1mA
0.4
V
Logic 1 Output (32KHZ)
VOH
Active supply > 3.3V, IOH = -1mA
2.0
V
Active supply > 2.7V, IOH = -0.75mA
2.0
Active supply > 2.3V, IOH = -0.14mA
2.0
Output Leakage
(32KHZ, INT/SQW, SDA)
ILO
-0.1
+0.1
A
Input Leakage (SCL)
ILI
-0.1
+0.1
A
RST I/O Leakage
IOL
-200
+10
A
VBAT Leakage
IBATLKG
TA = +25NC
-100
25
+100
nA
Temperature Accuracy
TEMPACC VCC or VBAT = +3.3V
Q
3
N
C
Temperature Conversion Time
tCONV
10
ms
Pushbutton Debounce
PBDB
250
ms
Reset Active Time
tRST
250
ms
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 5)
25
100
ms
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Active Battery Current
(I2C Active)
IBATA
(Note 3)
25
75
A
Timekeeping Battery Current
(I2C Inactive)
IBATT
EN32KHZ = 0, INTCN = 1 (Note 3)
1.8
3.0
A
Temperature Conversion Current
(I2C Inactive)
IBATTC
200
350
A
Data Retention Current
(Oscillator Stopped and I2C
Inactive)
IBATDR
TA = +25NC
100
nA
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