89hpes4t4g2 Integrated Device Technology, 89hpes4t4g2 Datasheet - Page 7

• Manufacturer Part Number: 89hpes4t4g2
• Description: 4-lane, 4-port Gen2 Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

IDT 89HPES4T4G2 Data Sheet
V
REFRES0
REFRES1
REFRES2
REFRES3
V
V
Signal
V
DD
V
DD
DD
DD
DD
V
CORE
PEHA
PETA
SS
PEA
I/O
Type
I/O
I/O
I/O
I/O
I
I
I
I
I
I
Table 6 Power, Ground, and SerDes Resistor Pins
Port 0 External Reference Resistor. Provides a reference for the Port 0
SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis-
tor should be connected from this pin to ground.
Port 1 External Reference Resistor. Provides a reference for the Port 1
SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis-
tor should be connected from this pin to ground.
Port 2 External Reference Resistor. Provides a reference for the Port 2
SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis-
tor should be connected from this pin to ground.
Port 3 External Reference Resistor. Provides a reference for the Port 3
SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis-
tor should be connected from this pin to ground.
Core V
I/O V
PCI Express Analog Power. Serdes analog power supply (1.0V).
PCI Express Analog High Power. Serdes analog power supply (2.5V).
PCI Express Transmitter Analog Voltage. Serdes transmitter analog
power supply (1.0V).
Ground.
DD.
DD.
LVTTL I/O buffer power supply.
Power supply for core logic.
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Name/Description
May 7, 2008