14 of 50 December 16, 2013
IDT 89HPES24T3G2 Datasheet
Recommended Operating Supply Voltages
Absolute Maximum Voltage Rating
Warning: For proper and reliable operation in adherence with this data sheet, the device should not exceed the recommended operating voltages
in Table 13. The absolute maximum operating voltages in Table 14 are offered to provide guidelines for voltage excursions outside the recommended
voltage ranges. Device functionality is not guaranteed at these conditions and sustained operation at these values or any exposure to voltages outside
the maximum range may adversely affect device functionality and reliability.
Power-Up/Power-Down Sequence
During power supply ramp-up, V
DD
CORE must remain at least 1.0V below V
DD
I/O at all times. There are no other power-up sequence require-
ments for the various operating supply voltages.
The power-down sequence can occur in any order.
Recommended Operating Temperature
Symbol Parameter Minimum Typical Maximum Unit
V
DD
CORE Internal logic supply 0.9 1.0 1.1 V
V
DD
I/O I/O supply except for SerDes LVPECL/CML 3.135 3.3 3.465 V
V
DD
PEA
1
1.
V
DD
PEA and V
DD
PETA should have no more than 25mV
peak-peak
AC power supply noise superimposed on the 1.0V nominal DC
value.
PCI Express Analog Power 0.95 1.0 1.1 V
V
DD
PEHA
2
2.
V
DD
PEHA should have no more than 50mV
peak-peak
AC power supply noise superimposed on the 2.5V nominal DC value.
PCI Express Analog High Power 2.25 2.5 2.75 V
V
DD
PETA
1
PCI Express Transmitter Analog Voltage 0.95 1.0 1.1 V
V
SS
Common ground 0 0 0 V
Table 13 PES24T3G2 Operating Voltages
Core Supply
PCIe Analog
Supply
PCIe Analog
High Supply
PCIe
Transmitter
Supply
I/O Supply
1.5V 1.5V 4.6V 1.5V 4.6V
Table 14 PES24T3G2 Absolute Maximum Voltage Rating
Grade Temperature
Commercial 0
C to +70C Ambient
Industrial -40
C to +85C Ambient
Table 15 PES24T3G2 Operating Temperatures
