IDT 89HPES32NT8BG2 Datasheet
17 of 35 December 17, 2013
Recommended Operating Temperature
Recommended Operating Supply Voltages — Commercial Temperature
Recommended Operating Supply Voltages — Industrial Temperature
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.
Grade Temperature
Commercial 0C to +70C Ambient
Industrial -40C to +85C Ambient
Table 15 PES32NT8BG2 Operating Temperatures
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 3.125 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 16 PES32NT8BG2 Operating Voltages — Commercial 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 3.125 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 1.05 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 17 PES32NT8BG2 Operating Voltages — Industrial Temperature