557G-08LF Integrated Device Technology (Idt), 557G-08LF Datasheet - Page 2

• Manufacturer Part Number: 557G-08LF
• Description: Clock Multiplexer 2-IN HCSL/LVDS 16-Pin TSSOP Tube
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 557G-08LF

• Package: 16TSSOP
• Configuration: 1 x 2:1
• Input Signal Type: HCSL|LVDS
• Operating Supply Voltage: 3.3 V

Pin Assignment
Pin Descriptions
IDT® 2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS
ICS557-08
2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
GND
VDD
Pin Name
IN2
IN1
IN1
IN2
PD
OE
IREF
VDD
GND
VDD
VDD
GND
GND
CLK
CLK
SEL
IN1
IN1
IN2
IN2
OE
PD
16-pin (173 mil) TSSOP
1
2
3
4
5
6
7
8
Pin Type
Output
Output
Output
Power
Power
Power
Power
Power
Power
Input
Input
Input
Input
Input
Input
Input
16
15
14
13
12
11
10
9
Connect to +3.3 V. Supply voltage for Input clocks.
HCSL/LVDS true input signal 1.
HCSL/LVDS complimentary input signal 1.
Powers down the chip and tri-states outputs when low. Internal pull-up
HCSL/LVDS true input signal 2.
HCSL/LVDS complimentary input signal 2.
Provides output or, tri-states output (High = enable outputs; Low = disable).
Internal pull-up resistor.
Connect to ground.
Precision resistor attached to this pin is connected to the internal current
Connect to +3.3 V. Supply Voltage for Output Clocks.
Connect to +3.3 V. Supply Voltage for Output Clocks.
Connect to ground.
Connect to ground.
HCSL/LVDS Complimentary output clock .
HCSL/LVDS True output clock.
SEL=1 selects IN1/IN1. SEL =0 selects IN2/ IN2. Internal pull-up resistor.
SEL
CLK
GND
GND
CLK
VDD
VDD
IREF
2
Select Table
SEL
0
1
Pin Description
Input Pair Selected
IN2/ IN2
IN1/ IN1
ICS557-08
PCIE MULTIPLEXER
REV J 121510