DS3231 Maxim, DS3231 Datasheet - Page 3

• Manufacturer Part Number: DS3231
• Description: The DS3231 is a low-cost, extremely accurate I²C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
3.3V, V
ELECTRICAL CHARACTERISTICS
(V
Output Frequency
Frequency Stability vs.
Temperature (Commercial)
Frequency Stability vs.
Temperature (Industrial)
Frequency Stability vs. Voltage
Trim Register Frequency
Sensitivity per LSB
Temperature Accuracy
Crystal Aging
Active Battery Current
Timekeeping Battery Current
Temperature Conversion Current
Data-Retention Current
CC
CC
= 2.3V to 5.5V, V
= 0V, V
BAT
PARAMETER
PARAMETER
= 3.0V, and T
BAT
= 2.3V to 5.5V, T
CC
A
= Active Supply (see Table 1), T
= +25°C, unless otherwise noted.) (Notes 2, 3)
A
Extremely Accurate I
= T
SYMBOL
SYMBOL
I
I
BATTDR
Temp
I
I
BATTC
MIN
f
f/f
f/f
BATA
f/LSB
BATT
OUT
f/f
f/V
OUT
OUT
O
_____________________________________________________________________
to T
MAX
V
V
V
aging offset = 00h
V
V
aging offset = 00h
Specified at:
V
After reflow,
not production tested
SCL = 400kHz (Note 5)
EN32kHz = 1,
SCL = SDA = 0V or
SCL = SDA = V
SCL = SDA = 0V or
SCL = SDA = V
CC
CC
BAT
CC
BAT
CC
, unless otherwise noted.) (Note 2)
= 3.3V or V
= 3.3V or
= 3.3V or
= 3.3V or V
= 3.3V,
= 3.3V,
= 0, BBSQW = 0,
= 0, BBSQW = 0,
= 0, BBSQW = 0,
= 1, SCL = SDA = 0V, +25°C
A
= T
CONDITIONS
CONDITIONS
MIN
BAT
BAT
BAT
BAT
to T
= 3.3V
= 3.3V
(Note 5) V
MAX
0°C to +40°C
>40°C to +70°C
-40°C to <0°C
0°C to +40°C
>40°C to +85°C
-40°C
+25°C
+70°C
+85°C
First year
0–10 years
, unless otherwise noted.) (Typical values are at V
V
V
V
V
V
BAT
BAT
BAT
BAT
BAT
BAT
RTC/TCXO/Crystal
= 3.63V
= 5.5V
= 3.63V
= 5.5V
= 3.63V
= 5.5V
2
MIN
MIN
C-Integrated
-3
32.768
±1.0
±5.0
TYP
TYP
0.84
0.7
0.1
0.4
0.8
1.0
1
MAX
±3.5
±3.5
±3.5
MAX
150
575
650
100
3.0
3.5
±2
±2
+3
70
UNITS
ppm/V
UNITS
ppm
ppm
ppm
ppm
kHz
°C
μA
μA
μA
nA
CC
=
3