Datasheet

DS1087L
3.3V Spread-Spectrum EconOscillator
4 _____________________________________________________________________
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
5pF
NONVOLATILE MEMORY CHARACTERISTICS
(V
CC
= 2.7V to 3.6V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
Writes +70°C 10,000