DS3231 Maxim, DS3231 Datasheet - Page 4

• 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

AC ELECTRICAL CHARACTERISTICS
(V
POWER-SWITCH CHARACTERISTICS
(T
Extremely Accurate I
RTC/TCXO/Crystal
4
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition (Note 7)
Low Period of SCL Clock
High Period of SCL Clock
Data Hold Time (Notes 8, 9)
Data Setup Time (Note 10)
START Setup Time
Rise Time of Both SDA and SCL
Signals (Note 11)
Fall Time of Both SDA and SCL
Signals (Note 11)
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line
Capacitance for SDA, SCL
Pulse Width of Spikes That Must
Be Suppressed by the Input Filter
Pushbutton Debounce
Reset Active Time
Oscillator Stop Flag (OSF) Delay
Temperature Conversion Time
V
V
V
V
Recovery at Power-Up
CC
A
CC
CC
PF(MIN)
PF(MAX)
= T
_____________________________________________________________________
= V
Fall Time; V
Rise Time; V
MIN
CC(MIN)
PARAMETER
PARAMETER
to T
MAX
to V
PF(MAX)
PF(MIN)
)
CC(MAX)
to
to
or V
BAT
SYMBOL
SYMBOL
= V
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STA
SU:STO
t
t
t
PB
t
t
CONV
C
t
VCCR
t
f
t
HIGH
t
VCCF
LOW
t
OSF
REC
SCL
BUF
C
RST
BAT(MIN)
t
t
SP
I/O
R
F
B
DB
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
(Note 11)
(Note 12)
(Note 13)
to V
BAT(MAX)
2
C-Integrated
, V
CONDITIONS
CONDITIONS
BAT
> V
CC
, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 2)
0.1C
0.1C
20 +
20 +
MIN
100
100
250
MIN
300
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.7
0
0
0
0
B
B
TYP
TYP
250
250
100
125
250
10
30
MAX
1000
MAX
400
100
300
300
300
400
200
300
0.9
0.9
UNITS
UNITS
kHz
ms
ms
ms
ms
ms
μs
μs
μs
μs
μs
ns
μs
ns
ns
μs
pF
pF
ns
μs
μs