89hpes12n3 Integrated Device Technology, 89hpes12n3 Datasheet - Page 13

• Manufacturer Part Number: 89hpes12n3
• Description: 12-lane, 3-port Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

Power-Up Sequence
PES12N3, the power-up sequence must be as follows:
are avoided. There are no maximum time limitations in ramping to valid power levels. The power-down sequence must be in the reverse order of the
power-up sequence.
Power Consumption
Table 14.
IDT 89HPES12N3 Data Sheet
This section describes the sequence in which various voltages must be applied to the part during power-up to ensure proper functionality. For the
1. V
2. V
3. V
When powering up, each voltage level must ramp and stabilize prior to applying the next voltage in the sequence to ensure internal latch-up issues
Typical power is measured under the following conditions: 25°C Ambient, 35% total link usage on all ports, typical voltages defined in Table 14.
Maximum power is measured under the following conditions: 70°C Ambient, 85% total link usage on all ports, maximum voltages defined in
All power measurements assume that the part is mounted on a 10 layer printed circuit board with 0 LFM airflow.
Port-A/Port-B/Port-C
Connected Lanes:
Number of
DD
DD
TT
PE — 1.5V
I/O — 3.3V
Core, V
1/1/1
4/1/1
4/4/4
DD
PE, V
DD
(1.0V supply)
APE — 1.0V
Core (Watts)
Typ
0.52
0.56
0.65
Max
0.67
0.76
0.89
(1.0V supply)
PCIe Digital
Typ
0.27
0.47
0.68
(Watts)
Table 14 PES12N3 Power Consumption
Max
0.36
0.58
0.81
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(1.0V supply)
PCIe Analog
Typ
0.13
0.19
0.21
(Watts)
Max
0.16
0.21
0.25
(1.5V supply)
PCIe Termin-
ation (Watts)
Typ
0.11
0.22
0.38
Max
0.13
0.26
0.51
(3.3V supply)
Typ
0.01
0.01
0.01
I/O (Watts)
Max
0.01
0.01
0.01
Total (Watts)
Typ
1.04
1.44
1.92
July 18, 2006
Max
1.33
1.81
2.47