參數(shù)資料
型號(hào): XC4VFX12-11FF668I
廠商: Xilinx Inc
文件頁(yè)數(shù): 16/58頁(yè)
文件大小: 0K
描述: IC FPGA VIRTEX-4FX 668FFBGA
標(biāo)準(zhǔn)包裝: 40
系列: Virtex®-4 FX
LAB/CLB數(shù): 1368
邏輯元件/單元數(shù): 12312
RAM 位總計(jì): 663552
輸入/輸出數(shù): 320
電源電壓: 1.14 V ~ 1.26 V
安裝類型: 表面貼裝
工作溫度: -40°C ~ 100°C
封裝/外殼: 668-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 668-FCBGA
Virtex-4 FPGA Data Sheet: DC and Switching Characteristics
DS302 (v3.7) September 9, 2009
Product Specification
23
I/O Standard Adjustment Measurement Methodology
Input Delay Measurements
Table 30 shows the test setup parameters used for measuring input delay.
Table 30: Input Delay Measurement Methodology
Description
I
/O Standard
Attribute
VL(1,2)
VH(1,2)
VMEAS
(1,4,5)
VREF
(1,3,5)
LVTTL (Low-Voltage Transistor-Transistor Logic)
LVTTL
0
3.0
1.4
LVCMOS (Low-Voltage CMOS), 3.3V
LVCMOS33
0
3.3
1.65
LVCMOS, 2.5V
LVCMOS25
0
2.5
1.25
LVCMOS, 1.8V
LVCMOS18
0
1.8
0.9
LVCMOS, 1.5V
LVCMOS15
0
1.5
0.75
PCI (Peripheral Component Interface),
33 MHz, 3.3V
PCI33_3
Per PCI Specification
PCI, 66 MHz, 3.3V
PCI66_3
Per PCI Specification
PCI-X, 133 MHz, 3.3V
PCIX
Per PCI-X Specification
GTL (Gunning Transceiver Logic)
GTL
VREF –0.2
VREF +0.2
VREF
0.80
GTL Plus
GTLP
VREF –0.2
VREF +0.2
VREF
1.0
HSTL (High-Speed Transceiver Logic),
Class I & II
HSTL_I, HSTL_II
VREF –0.5
VREF +0.5
VREF
0.75
HSTL, Class III & IV
HSTL_III, HSTL_IV
VREF –0.5
VREF +0.5
VREF
0.90
HSTL, Class I & II, 1.8V
HSTL_I_18, HSTL_II_18
VREF –0.5
VREF +0.5
VREF
0.90
HSTL, Class III & IV, 1.8V
HSTL_III_18,
HSTL_IV_18
VREF –0.5
VREF +0.5
VREF
1.08
SSTL (Stub Terminated Transceiver Logic),
Class I & II, 3.3V
SSTL3_I, SSTL3_II
VREF –1.00
VREF +1.00
VREF
1.5
SSTL, Class I & II, 2.5V
SSTL2_I, SSTL2_II
VREF –0.75
VREF +0.75
VREF
1.25
SSTL, Class I & II, 1.8V
SSTL18_I, SSTL18_II
VREF –0.5
VREF +0.5
VREF
0.90
AGP-2X/AGP (Accelerated Graphics Port)
AGP
VREF
(0.2 xVCCO)
VREF +
(0.2 xVCCO)
VREF
AGP
Spec
LVDS (Low-Voltage Differential Signaling), 2.5V
LVDS_25
1.2 – 0.125
1.2 + 0.125
1.2
LVDSEXT (LVDS Extended Mode), 2.5V
LVDSEXT_25
1.2 – 0.125
1.2 + 0.125
1.2
ULVDS (Ultra LVDS), 2.5V
ULVDS_25
0.6 – 0.125
0.6 + 0.125
0.6
LDT (HyperTransport), 2.5V
LDT_25
0.6 – 0.125
0.6 + 0.125
0.6
Notes:
1.
Input delay measurement methodology parameters for LVDCI and HSLVDCI are the same as for LVCMOS standards of the same voltage.
Parameters for all other DCI standards are the same as for the corresponding non-DCI standards.
2.
Input waveform switches between VLand VH.
3.
Measurements are made at typical, minimum, and maximum VREF values. Reported delays reflect worst case of these measurements. VREF values
listed are typical.
4.
Input voltage level from which measurement starts.
5.
This is an input voltage reference that bears no relation to the VREF / VMEAS parameters found in IBIS models and/or noted in Figure 4.
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