89hpes3t3 Integrated Device Technology, 89hpes3t3 Datasheet - Page 10

• Manufacturer Part Number: 89hpes3t3
• Description: 3-lane, 3-port Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

Recommended Operating Supply Voltages
Power-Up/Power-Down Sequence
PES3T3, the power-up sequence must be as follows:
are avoided. There are no maximum time limitations in ramping to valid power levels.
IDT 89HPES3T3 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
The power-down sequence must be in the reverse order of the power-up sequence.
DD
DD
TT
PE — 1.5V
I/O — 3.3V
Core, V
V
V
V
V
V
V
DD
DD
DD
DD
TT
SS
Symbol
PE
CORE
I/O
PE
APE
DD
PE, V
JTAG_TRST_N
DD
Internal logic supply
I/O supply except for SerDes LVPECL/CML
PCI Express Digital Power
PCI Express Analog Power
PCI Express Serial Data Transmit
Termination Voltage
Common ground
APE — 1.0V
JTAG_TMS
JTAG_TDO
JTAG_TCK
JTAG_TDI
Parameter
Tpw_16d
Table 12 PES3T3 Operating Voltages
Figure 5 JTAG AC Timing Waveform
Tsu_16b
Tsu_16b
Thld_16b
Thld_16b
Thigh_16a
10 of 32
Minimum
3.135
1.425
0.9
0.9
0.9
0
Tlow_16a
Tlow_16a
Typical
Tdo_16c
1.0
3.3
1.0
1.0
1.5
0
Tper_16a
Maximum
3.465
1.575
1.1
1.1
1.1
0
Tdz_16c
Unit
V
V
V
V
V
V
March 31, 2008