932SQ420DGLFT Datasheet, PDF (7/27 Pages) Integrated Device Technology – PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS

932SQ420D
PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
Pin Descriptions - 64 MLF (cont).
35 VDDNS
36 GNDNS
37 NS_SAS0C
PWR 3.3V power for the Non-Spreading differential outputs outputs and logic
PWR Ground pin for non-spreading differential outputs and logic.
OUT ^{Complementary clock of differentia non-spreading SAS output. These are current mode outputs and external}
33 ohm series resistors and 49.9 ohm shunt resistors are required for termination.
38 NS_SAS0T
OUT
True clock of differential non-spreading SAS output. These are current mode outputs. These are current
mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination.
39 NS_SAS1C
OUT
Complementary clock of differential non-spreading SAS output. These are current mode outputs and
33 ohm series resistors and 49.9 ohm shunt resistors are required for termination.
external
40 NS_SAS1T
OUT
True clock of differential non-spreading SAS output. These are current mode outputs. These are current
mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination.
41 AVDD_NS_SAS
42 GNDNS
43 CPU0C
44 CPU0T
45 CPU1C
46 CPU1T
47 VDDCPU
48 GNDCPU
49 CPU2C
50 CPU2T
51 CPU3C
52 CPU3T
53 VDDCPU
54 SMBDAT
55 SMBCLK
56 GND14
57 AVDD14
58 VDD14
59 vREF14_3x/TEST_SEL
60 GND14
61 GNDXTAL
62 X1_25
63 X2_25
64 VDDXTAL
PWR 3.3V power for the non-spreading SAS/SRC PLL analog circuits.
PWR Ground pin for non-spreading differential outputs and logic.
OUT
Complementary clock of differential CPU output. These are current mode outputs and external 33 ohm series
resistors and 49.9 ohm shunt resistors are required for termination.
OUT
True clock of differential CPU output. These are current mode outputs and external 33 ohm series resistors
and 49.9 ohm shunt resistors are required for termination.
Complementary clock of differential CPU output. These are current mode outputs and external 33 ohm series
OUT _{resistors and 49.9 ohm shunt resistors are required for termination.}
True clock of differential CPU output. These are current mode outputs and external 33 ohm series resistors
OUT _{and 49.9 ohm shunt resistors are required for termination.}
PWR 3.3V power for the CPU outputs and logic
PWR Ground pin for CPU outputs and logic.
Complementary clock of differential CPU output. These are current mode outputs and external 33 ohm series
OUT _{resistors and 49.9 ohm shunt resistors are required for termination.}
True clock of differential CPU output. These are current mode outputs and external 33 ohm series resistors
OUT _{and 49.9 ohm shunt resistors are required for termination.}
Complementary clock of differential CPU output. These are current mode outputs and external 33 ohm series
OUT _{resistors and 49.9 ohm shunt resistors are required for termination.}
OUT ^{True clock of differential CPU output. These are current mode outputs and external 33 ohm series resistors}
and 49.9 ohm shunt resistors are required for termination.
PWR 3.3V power for the CPU outputs and logic
I/O Data pin of SMBUS circuitry, 5V tolerant
IN Clock pin of SMBUS circuitry, 5V tolerant
PWR Ground pin for 14MHz output and logic.
PWR Analog power pin for 14MH z PLL
PWR Power pin for 14MHz output and logic
I/O ^{14.318 MHz reference clock. 3X drive strength as default / TEST_SEL latched input to enable test mode. Refer}
to Test Clarification Table. This pin has a weak (~120Kohm) internal pull down.
PWR Ground pin for 14MHz output and logic.
PWR Ground pin for Crystal Oscillator.
IN Crystal input, Nominally 25.00MHz.
OUT Crystal output, Nominally 25.00MHz.
PWR 3.3V power for the crystal oscillator.
IDT® PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS
7
932SQ420D
REV H 042012