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932SQ420D 데이터시트(PDF) 6 Page - Integrated Device Technology |
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932SQ420D 데이터시트(HTML) 6 Page - Integrated Device Technology |
6 / 28 page 932SQ420D PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS IDT® PCIE GEN 2/3 & QPI CLOCK FOR ROMLEY-BASED SERVERS 6 932SQ420D REV J 010715 Pin Descriptions - 64 MLF PIN # PIN NAME TYPE D ESC RIPTION 1 GNDPCI PWR Ground pin for PCI outputs and logic. 2 VDDPC I PWR 3.3V power for the PCI outputs and logic 3 PCI4_2x OUT 3.3V PCI clock output 4 PCI3_2x OUT 3.3V PCI clock output 5 PCI2_2x OUT 3.3V PCI clock output 6 PCI1_2x OUT 3.3V PCI clock output 7 PCI0_2x OUT 3.3V PCI clock output 8 GNDPCI PWR Ground pin for PCI outputs and logic. 9 VDDPC I PWR 3.3V power for the PCI outputs and logic 10 VDD48 PWR 3.3V power for the 48MHz output and logic 11 ^48M_2x/100M_133M# I/O 3.3V 48MHz output/ 3.3V tolerant CPU frequency select latched input pin. See VilFS and VihFS values for thresholds. This pin has a weak (~120Kom) internal pull up. 1 = 100MHz, 0 = 133MHz operating frequency 12 GND48 PWR Ground pin for 48MH z output and logic. 13 GND96 PWR Ground pin for DOT96 output and logic. 14 DOT96T OUT True clock of differential 96MHz 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. 15 DOT96C OUT Complementary clock of differential 96MHz output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 16 AVDD96 PWR 3.3V power for the 48/96MHz PLL and the 96MHz output and logic 17 TEST_MOD E IN TEST_MODE is a real time input to select between Hi-Z and REF/N divider mode while in test mode. Refer to Test Clarification Table. 18 CKPWRGD#/PD IN CKPWRGD# is an active low input used to sample latched inputs and allow the device to Power Up. PD is an asynchronous active high input pin used to put the device into a low power state. The internal clocks and PLLs are stopped. 19 VDDSR C PWR 3.3V power for the SRC outputs and logic 20 SRC0T OUT True clock of differential SRC 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. 21 SRC0C OUT Complementary clock of differential SRC output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 22 GNDSRC PWR Ground pin for SRC outputs and logic. 23 SRC1C OUT Complementary clock of differential SRC output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 24 SRC1T OUT True clock of differential SRC 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. 25 SRC2C OUT Complementary clock of differential SRC output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 26 SRC2T OUT True clock of differential SRC 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. 27 VDDSR C PWR 3.3V power for the SRC outputs and logic 28 AVDD_SRC PWR 3.3V power for the SRC PLL analog circuits 29 GNDSRC PWR Ground pin for SRC outputs and logic. 30 IR EF OUT This pin establishes the reference current for the differential current-mode output pairs. This pin requires a fixed precision resistor tied to ground in order to establish the appropriate current. 475 ohms is the standard value. 31 NS_SRC0C OUT Complementary clock of differential non-spreading SR C output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 32 NS_SRC0T OUT True clock of differential non-spreading SRC 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. 33 NS_SRC1C OUT Complementary clock of differential non-spreading SR C output. These are current mode outputs and external 33 ohm series resistors and 49.9 ohm shunt resistors are required for termination. 34 NS_SRC1T OUT True clock of differential non-spreading SR C 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. |
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