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The ICS557-08 is a 2:1 multiplexer chip that allows the user to select one of the two HCSL (Host Clock Signal Level) input pairs and fans out to one pair of differential HCSL or LVDS outputs. This chip is suited especially for PCI-Express applications, where there is a need to select the PCI-Express clock either locally from the PCI-E card or from the mother.
• Packaged in 16-pin TSSOP
• Pb (lead) free package
• Operating voltage of 3.3 V
• Low power consumption
• Input clock frequency of up to 200 MHz
• For PCIe Gen2/3 applications, see the 5V41068A
Block Diagram
VDD
OE
3
IN1
IN1
CLK
MUX
IN2
2 to 1
IN2
CLK
3
SEL GND
PD
Rr (IREF)
IDT® 2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS GEN1
1
ICS557-08 REV L 112111
ICS557-08 2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS GEN1
PCIE MULTIPLEXER
Pin Assignment
VDD 1 IN1 2 IN1 3 PD 4 IN2 5 IN2 6 OE 7 GND 8
16 SEL
15 CLK
14
CLK
13 GND
12 GND
11 VDD
10 VDD
9
IREF
16-pin (173 mil) TSSOP
Select T.
ICS557-08 - ICST
The ICS557-08 is a 2:1 multiplexer chip that allows the user to select one of the two HCSL (Host Clock Signal Level) or .
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | ICS557-01 |
Renesas |
PCI-EXPRESS GEN1 CLOCK SOURCE |
|
| 2 | ICS557-01 |
ICST |
PCI-EXPRESS CLOCK SOURCE |
|
| 3 | ICS557-03 |
Renesas |
spread spectrum clock generator |
|
| 4 | ICS557-03 |
Renesas |
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE |
|
| 5 | ICS557-03 |
IDT |
spread spectrum clock generator |
|
| 6 | ICS557-05A |
Renesas |
spread-spectrum clock generator |
|
| 7 | ICS557-05A |
ICST |
Quad Differential PCI-Express Clock Source |
|
| 8 | ICS557-06 |
Renesas |
2 TO 4 DIFFERENTIAL PCIE GEN1 CLOCK MUX |
|
| 9 | ICS557-06 |
ICST |
ONE TO FOUR HCSL CLOCK BUFFER |
|
| 10 | ICS557G-03LF |
Renesas |
2 OUTPUT PCI-EXPRESS GEN1 CLOCK SOURCE |
|
| 11 | ICS557G-06LF |
Renesas |
2 TO 4 DIFFERENTIAL PCIE GEN1 CLOCK MUX |
|
| 12 | ICS557G-08LF |
Renesas |
2:1 MULTIPLEXER |
|