DS3232 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'DS3232' PDF : 19 Pages View PDF
Extremely Accurate I2C RTC with
Integrated Crystal and SRAM
AC ELECTRICAL CHARACTERISTICS
(Active supply (see Table 1) = 2.3V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition (Note 6)
Low Period of SCL Clock
High Period of SCL Clock
Data Hold Time (Notes 7, 8)
Data Setup Time (Note 9)
Start Setup Time
Rise Time of Both SDA and SCL
Signals (Note 10)
Fall Time of Both SDA and SCL
Signals (Note 10)
Setup Time for STOP Condition
Capacitive Load for Each Bus
Line (Note 10)
Capacitance for SDA, SCL
Pulse Width of Spikes That Must
Be Suppressed by the Input Filter
Pushbutton Debounce
Interface Timeout
Reset Active Time
Oscillator Stop Flag (OSF) Delay
Temperature Conversion Time
SYMBOL
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tHD:DAT
tSU:DAT
tSU:STA
tR
tF
tSU:STO
CONDITIONS
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
CB
CI/O
tSP
PBDB
tIF
tRST
tOSF
tCONV
(Note 11)
(Note 12)
MIN
100
0.04
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0
0
100
250
0.6
4.7
20 +
0.1CB
20 +
0.1CB
0.6
4.7
25
POWER-SWITCH CHARACTERISTICS
(TA = -40°C to +85°C)
PARAMETER
SYMBOL
CONDITIONS
MIN
VCC Fall Time; VPF(MAX) to
VPF(MIN)
tVCCF
300
VCC Rise Time; VPF(MIN) to
VPF(MAX)
tVCCR
0
Recovery at Power-Up
tREC (Note 13)
4 _____________________________________________________________________
TYP MAX UNITS
400
kHz
100
µs
µs
25,000
µs
25,000
µs
0.9
µs
0.9
ns
µs
300
ns
1000
300
ns
300
µs
400
pF
10
pF
30
ns
250
ms
35
ms
250
ms
100
ms
125
200
ms
TYP MAX UNITS
µs
µs
125
300
ms
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