Ac electrical characteristics—2-wire interface – Rainbow Electronics DS1087L User Manual
Page 4
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DS1087L
3.3V Spread-Spectrum EconOscillator
4
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AC ELECTRICAL CHARACTERISTICS—2-WIRE INTERFACE
(V
CC
= 2.7V to 3.6V, T
A
= 0°C to +70°C.)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Fast mode (Note 8)
400
SCL Clock Frequency
f
SCL
Standard mode (Note 8)
100
kHz
Fast mode (Note 8)
1.3
Bus Free Time Between a STOP
and START Condition
t
BUF
Standard mode (Note 8)
4.7
µs
Fast mode (Notes 8 and 9)
0.6
Hold Time (repeated) START
Condition
t
HD:STA
Standard mode (Notes 8 and 9)
4.0
µs
Fast mode (Note 8)
1.3
LOW Period of SCL
t
LOW
Standard mode (Note 8)
4.7
µs
Fast mode (Note 8)
0.6
HIGH Period of SCL
t
HIGH
Standard mode (Note 8)
4.0
µs
Fast mode
0.6
Setup Time for a Repeated
START
t
SU:STA
Standard mode
4.7
µs
Fast mode (Notes 8, 10, and 11)
0
0.9
Data Hold Time
t
HD:DAT
Standard mode (Notes 8, 10, and 11)
0
0.9
µs
Fast mode (Note 8)
100
Data Setup Time
t
SU:DAT
Standard mode (Note 8)
250
ns
Fast mode (Note 12)
20 + 0.1C
B
300
Rise Time of Both SDA and SCL
Signals
t
R
Standard mode (Note 12)
20 + 0.1C
B
1000
ns
Fast mode (Note 12)
20 + 0.1C
B
300
Fall Time of Both SDA and SCL
Signals
t
F
Standard mode (Note 12)
20 + 0.1C
B
1000
ns
Fast mode
0.6
Setup Time for STOP
t
SU:STO
Standard mode
4.0
µs
Capacitive Load for Each Bus
C
B
(Note 12)
400
pF
NV Write Cycle Time
t
WR
10
ms
Input Capacitance
C
I
5
pF
NONVOLATILE MEMORY CHARACTERISTICS
(V
CC
= 2.7V to 3.6V)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Writes
+70°C
10,000