89HPES22H16 Datasheet, PDF (18/37 Pages) Integrated Device Technology – Low-latency cut-through switch architecture

IDT 89HPES22H16 Data Sheet
Power-Up Sequence
This section describes the sequence in which various voltages must be applied to the part during power-up to ensure proper functionality. For the
PES22H16, the power-up sequence must be as follows:
1. V_DDI/O — 3.3V
2. V_DDCore, V_DDPE, V_DDAPE — 1.0V
3. V_TTPE — 1.5V
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
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.
Recommended Operating Temperature
Grade
Temperature
Commercial
Industrial
0°C to +70°C Ambient
-40°C to +85°C Ambient
Table 15 PES22H16 Operating Temperatures
Power Consumption
Typical power is measured under the following conditions: 25°C Ambient, 35% total link usage on all ports, typical voltages defined in Table 13
(and also listed below).
Maximum power is measured under the following conditions: 70°C Ambient, 85% total link usage on all ports, maximum voltages defined in
Table 13 (and also listed below).
Number of active
Lanes per Port
Two x4 and
fourteen x1
mA
Watts
Core Supply
Typ
1.0V
1900
1.9
Max
1.1V
2364
2.6
PCIe Digital
Supply
PCIe Analog
Supply
PCIe Termin-
ation Supply
I/O Supply
Total
Typ
1.0V
Max
1.1V
Typ
1.0V
Max
1.1V
Typ
Max
Typ
1.5V 1.575V 3.3V
Max
Typ
Max
3.6V Power Power
1400 1727 800 1000 535
762
5
5
—
—
1.4
1.9
0.8
1.1
0.8
1.2
0.018 0.02 4.92 6.82
Table 16 PES22H16 Power Consumption
18 of 37
October 3, 2011