DS4000 Dallas Semiconducotr, DS4000 Datasheet - Page 4

• Manufacturer Part Number: DS4000
• Description: Digitally Controlled TCXO
• Manufacturer: Dallas Semiconducotr

AC ELECTRICAL CHARACTERISTICS—2-WIRE SERIAL INTERFACE
(V
Note 7: After this period, the first clock pulse is generated.
Note 8: The maximum t
Note 9: A fast-mode device can be used in a standard mode system, but the requirement t
Note 10: C
SCL Clock Frequency
Bus Free Time Between
a STOP and START
Condition
Hold Time (Repeated)
START Condition
Low Period of SCL
Clock
High Period of SCL
Clock
Setup Time for a
Repeated START
Condition
Data Hold Time
Data Setup Time
Rise Time of Both SDA
and SCL
Fall Time of Both SDA
and SCL
Setup Time for STOP
Condition
Capacitive Load for
Each Bus Line
Input Capacitance
CC
= 4.75 to 5.25V, T
PARAMETER
the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL
signal, it must output the next data bit to the SDA line t
B
: Total capacitance of one bus line in pF.
HD:DAT
A
has only to be met if the device does not stretch the LOW period (t
= -40°C to +85°C)
SYMBOL
t
t
t
t
t
SU:STO
HD:STA
SU:STA
HD:DAT
SU:DAT
t
t
f
t
HIGH
C
LOW
BUF
SCL
C
t
t
R
F
B
I
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode (Note 7)
Standard mode (Note 7)
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode
Standard mode
Fast mode (Note 8)
Standard mode (Note 8)
Fast mode (Note 9)
Standard mode (Note 9)
Fast mode (Note 9)
Standard mode (Note 9)
Fast mode (Note 10)
Standard mode (Note 10)
Fast mode
Standard mode
(Note 10)
CONDITION
RMAX
4 of 16
+ t
SU:DAT
(1000 + 250 = 1250ns) before the SCL line is released.
SU:DAT
20 + 0.1C
20 + 0.1C
20 + 0.1C
20 + 0.1C
MIN
100
250
LOW
1.3
4.7
0.6
4.0
1.3
4.7
0.6
4.0
0.6
4.7
0.6
4.0
>250ns must then be met. This is automatically
0
0
0
0
) of the SCL signal.
B
B
B
B
TYP
5
MAX
1000
1000
400
100
300
300
400
0.9
0.9
UNITS
kHz
pF
pF
ms
ms
ms
ms
ms
ms
ns
ns
ns
ms