CY28401OC Silicon Laboratories Inc, CY28401OC Datasheet - Page 8

• Manufacturer Part Number: CY28401OC
• Description: Clock Buffer 100 MHz Diff Buffer PCIe & SATA 1in 4out
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28401OC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev 1.0, November 21, 2006
Output Enable Clarification
The OE function may be implemented in two ways, via writing
a ‘0’ to SMBus register bit corresponding to output of interest
or by asserting an OE input pin LOW. In both methods, if
SMBus registered bit has been written LOW or the OE pin is
LOW or both, the output of interest will be three-stated. (The
assertion and deassertion of this signal is absolutely
asynchronous.)
Table 6. OE Functionality
OE (Pin)#
DIFC(Free Running
DIFT(Free Running
DIFC(Free Running
DIFC(Free Running
DIFT(Free Running
DIFT(Free Running
DIFC (Stoppable)
DIFT (Stoppable)
DIFC (Stoppable)
DIFC (Stoppable)
DIFT (Stoppable)
DIFT (Stoppable)
SRC_STOP#
SRC_STOP#
SRC_STOP#
1
1
0
0
PWRDWN#
PWRDWN#
PWRDWN#
Figure 7. SRC_STOP# =Three-state, PWRDWN# = Three-state
Figure 5. SRC_STOP# =Driven, PWRDWN# = Three-state
Figure 6. SRC_STOP# =Three-state, PWRDWN# = Driven
OE (SMBus Bit)
1
0
1
0
Three-state
Three-state
Three-state
Normal
DIFT
1mS
1mS
1mS
Normal
DIFC
Low
Low
Low
CY28401
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