參數(shù)資料
型號(hào)： XC7K420T-3FFG901I
廠商： XILINX INC
元件分類： FPGA
英文描述： FPGA, PBGA900
封裝： LEAD FREE, FBGA-900
文件頁數(shù)： 34/50頁
文件大小： 1218K
代理商： XC7K420T-3FFG901I
Kintex-7 FPGAs Data Sheet: DC and Switching Characteristics
DS182 (v1.1) April 1, 2011
Advance Product Specification
4
Power-On/Off Power Supply Requirements
Xilinx FPGAs require a certain amount of supply current during power-on to insure proper device initialization. The actual
current consumed depends on the power-on ramp rate of the power supply.
The recommended power-on and reverse power-off sequence for Kintex-7 devices is VCCINT, VCCBRAM, VCCAUX, VCCAUX_IO,
and VCCO to achieve minimum current draw and ensure I/Os are 3-stated at power-up. In cases where the recommended
sequence cannot be met, the following rules ensure that the I/Os remain 3-stated and no device damage will occur. VCCINT
and VCCBRAM can be powered on or off at any time as long as the following rules are met:
VCCAUX and VCCAUX_IO must be powered prior to VCCO or VCCAUX, VCCAUX_IO, and VCCO can ramp simultaneously if
powered by the same supply.
VCCAUX and VCCO can be powered by the same supply.
During operation, the VCCAUX,VCCAUX_IO, and VCCINT voltages must stay within their specifications (see Table 2).
When powering down, the reverse power-up sequencing rules are recommended for the same reasons given during power
up. VCCO must be powered down prior to VCCAUX and VCCAUX_IO, or if powered by the same supply, VCCO can be powered
down simultaneously.
In -3, -2, and -1 devices, if VCCINT and VCCBRAM have the same recommended voltage levels, then both can be powered by
the same supply. Both VCCINT and VCCBRAM can be powered up or down any time during the recommended sequence.
Table 5 shows the minimum current, in addition to ICCQ, that are required by Kintex-7 devices for proper power-on and
configuration. If the current minimums shown in Table 4 and Table 5 are met, the device powers on after all three supplies
have passed through their power-on reset threshold voltages. The FPGA must not be configured until after VCCINT is
applied.
Once initialized and configured, use the XPOWER tools to estimate current drain on these supplies.
Table 5: Power-On Current for Kintex-7 Devices
Device
ICCINTMIN
ICCAUXMIN
ICCOMIN
ICCAUX_IO
ICCBRAM
Units
Typ(1)
XC7K70T
mA
XC7K160T
mA
XC7K325T
mA
XC7K355T
mA
XC7K410T
mA
XC7K420T
mA
XC7K480T
mA
Notes:
1.
Typical values are specified at nominal voltage, 25°C.
2.
Use the XPOWER Estimator (XPE) spreadsheet tool (download at http://www.xilinx.com/power) to calculate maximum power-on currents.
Table 6: Power Supply Ramp Time
Symbol
Description
Ramp Time
Units
VCCINT
Internal supply voltage relative to GND
0.20 to 50.0
ms
VCCO
Output drivers supply voltage relative to GND
0.20 to 50.0
ms
VCCAUX
Auxiliary supply voltage relative to GND
0.20 to 50.0
ms
VCCBRAM
Block RAM supply voltage relative to GND
0.20 to 50.0
ms
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XC7K420T-L2FF1156E 制造商:Xilinx 功能描述:KINTEX-7 - Trays 制造商:Xilinx 功能描述:IC FPGA 400 I/O 1156FCBGA
XC7K420T-L2FF901E 制造商:Xilinx 功能描述:KINTEX-7 - Trays 制造商:Xilinx 功能描述:IC FPGA 420K KINTEX-7 901FBGA 制造商:Xilinx 功能描述:IC FPGA 380 I/O 901FCBGA
XC7K420T-L2FFG1156E 制造商:Xilinx 功能描述:KINTEX-7 - Trays 制造商:Xilinx 功能描述:IC FPGA 400 I/O 1156FCBGA
XC7K420T-L2FFG901E 制造商:Xilinx 功能描述:KINTEX-7 - Trays 制造商:Xilinx 功能描述:IC FPGA 380 I/O 901FCBGA
XC7K480T-1FF1156C 制造商:Xilinx 功能描述:KINTEX-7 - Trays 制造商:Xilinx 功能描述:IC FPGA 400 I/O 1156FCBGA
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