89hpes24n3 Integrated Device Technology, 89hpes24n3 Datasheet - Page 7

• Manufacturer Part Number: 89hpes24n3
• Description: 24-lane, 3-port Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

Pin Characteristics
IDT 89HPES24N3 Data Sheet
Note: Some input pads of the PES24N3 do not contain internal pull-ups or pull-downs. Unused inputs should be tied off to appropriate
levels. This is especially critical for unused control signal inputs which, if left floating, could adversely affect operation. Also, any input pin left
floating can cause a slight increase in power consumption.
PCI Express Inter-
face
SMBus
General Purpose I/O
System Pins
Function
PEALREV
PEARN[7:0]
PEARP[7:0]
PEATN[7:0]
PEATP[7:0]
PEBLREV
PEBRN[7:0]
PEBRP[7:0]
PEBTN[7:0]
PEBTP[7:0]
PECLREV
PECRN[7:0]
PECRP[7:0]
PECTN[7:0]
PECTP[7:0]
PEREFCLKN[1:0]
PEREFCLKP[1:0]
REFCLKM
MSMBADDR[4:1]
MSMBCLK
MSMBDAT
SSMBADDR[5,3:1]
SSMBCLK
SSMBDAT
GPIO[7:0]
CCLKDS
CCLKUS
MSMBSMODE
PERSTN
RSTHALT
TSTRSVD
SWMODE[3:0]
Pin Name
Table 7 Pin Characteristics (Part 1 of 2)
Type
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
7 of 30
Buffer
LVPECL/
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
CML
CML
CML
CML
I/O Type
High Drive
Diff. Clock
Serial link
Serial link
Serial link
Input,
Input
Input
Input
Input
Input
Input
Input
Input
STI
STI
Resistor
Internal
pull-down
pull-down
pull-down
pull-down
pull-down
pull-down
pull-down
pull-up
pull-up
pull-up
pull-up
pull-up
pull-up
External pulldown
Notes
Refer to
Table 8
December 18, 2007