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DS1340 Datasheet(PDF) 3 Page - Maxim Integrated Products

No. de pieza DS1340
Descripción Electrónicos  I2C RTC with Trickle Charger
PDF  16 Pages
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Fabricante Electrónico  MAXIM [Maxim Integrated Products]
Página de inicio  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1340 Datasheet(HTML) 3 Page - Maxim Integrated Products

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I2C RTC with Trickle Charger
Maxim Integrated
3
DS1340
DC ELECTRICAL CHARACTERISTICS
(VCC = 0V, VBACKUP = 3.7V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
IBACKUP1
OSC ON, FT = 0 (Note 9)
800
1150
IBACKUP2
OSC ON, FT = 1 (Note 9)
850
1250
VBACKUP Current
IBACKUP3
OSC ON, FT = 0, VBACKUP = 3.0V,
TA = +25°C (Notes 9, 10)
800
1000
nA
VBACKUP Data-Retention Current
IBACKUPDR OSC OFF
25.0
100
nA
AC ELECTRICAL CHARACTERISTICS
(VCC = VCC MIN to VCC MAX, TA = -40°C to +85°C, unless otherwise noted.) (Notes 1,14, Figure 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Standard mode
0
100
SCL Clock Frequency
fSCL
Fast mode
100
400
kHz
Standard mode
4.7
Bus Free Time Between STOP
and START Conditions
tBUF
Fast mode
1.3
μs
Standard mode
4.0
Hold Time (Repeated) START
Condition (Note 11)
tHD:STA
Fast mode
0.6
μs
Standard mode
4.7
Low Period of SCL Clock
tLOW
Fast mode
1.3
μs
Standard mode
4.0
High Period of SCL Clock
tHIGH
Fast mode
0.6
μs
Standard mode
0
0.9
Data Hold Time (Notes 12, 13)
tHD:DAT
Fast mode
0
0.9
μs
Standard mode
250
Data Setup Time (Note 14)
tSU:DAT
Fast mode
100
ns
Standard mode
4.7
START Setup Time
tSU:STA
Fast mode
0.6
μs
Standard mode
20 + 0.1CB
1000
Rise Time of SDA and SCL
Signals (Note 15)
tR
Fast mode
20 + 0.1CB
300
ns
Standard mode
20 + 0.1CB
300
Fall Time of SDA and SCL
Signals (Note 15)
tF
Fast mode
20 + 0.1CB
300
ns
Standard mode
4.7
Setup Time for STOP Condition
tSU:STO
Fast mode
0.6
μs
Capacitive Load for Each Bus
Line
CB
(Note 15)
400
pF
I/O Capacitance (SCL, SDA)
CI/O
10
pF
Pulse Width of Spikes that Must
be Suppressed by the Input
Filter
tSP
Fast mode
30
ns
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 16)
100
ms



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