vsc055xkm-01 Maxim Integrated Products, Inc., vsc055xkm-01 Datasheet - Page 119

• Manufacturer Part Number: vsc055xkm-01
• Description: Enhanced I?c Backplane Controller
• Manufacturer: Maxim Integrated Products, Inc.

VSC055-01
Data Sheet
4.2
4.2.1
Figure 4. Clock Cycle Timing Waveform
Table 20. Low-Frequency Operation
Table 21. High-Frequency Operation
AC Characteristics
The following section shows the AC specifications for the VSC055-01 device.
External Clock Timing
The following section contains the external clock cycle timing waveform and parameters for low-
frequency and high-frequency operation for the external clock.
The following table lists the AC characteristics in low-frequency operation.
The following table lists the AC characteristics in high-frequency operation.
Parameter
Frequency range
Clock cycle time
Clock LOW time
Clock HIGH time
Clock slew rate
Parameter
Frequency range
Clock cycle time
Clock LOW time
Clock HIGH time
Clock slew rate
Clock
Symbol
Symbol
t
t
t
t
t
t
t
t
f
f
1
2
3
4
1
2
3
4
119 of 133
t
2
Minimum
Minimum
32.0
13.3
8.0
5.3
5.3
t
80
32
32
1
1
1
t
3
Maximum
Maximum
12.5
75.0
31.3
18.8
18.8
125
75
75
t
4
Unit
MHz
V/ns
Unit
MHz
V/ns
ns
ns
ns
ns
ns
ns
Condition
CKSEL2 = V
CKSEL2 = V
CKSEL2 = V
CKSEL2 = V
Condition
CKSEL2 = V
CKSEL2 = V
CKSEL2 = V
CKSEL2 = V
January 2008
Revision 4.1
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