參數(shù)資料
型號: LFXP20E-5FN484C
廠商: LATTICE SEMICONDUCTOR CORP
元件分類: FPGA
中文描述: FPGA, 2464 CLBS, PBGA484
封裝: 23 X 23 MM, LEAD FREE, FPBGA-484
文件頁數(shù): 86/130頁
文件大小: 1312K
代理商: LFXP20E-5FN484C
3-28
DC and Switching Characteristics
Lattice Semiconductor
LatticeXP Family Data Sheet
Switching Test Conditions
Figure 3-13 shows the output test load that is used for AC testing. The specific values for resistance, capacitance,
voltage, and other test conditions are shown in Figure 3-5.
Figure 3-13. Output Test Load, LVTTL and LVCMOS Standards
Table 3-5. Test Fixture Required Components, Non-Terminated Interfaces
Test Condition
R1
CL
Timing Ref.
VT
LVTTL and other LVCMOS settings (L -> H, H -> L)
0pF
LVCMOS 3.3 = 1.5V
LVCMOS 2.5 = VCCIO/2
LVCMOS 1.8 = VCCIO/2
LVCMOS 1.5 = VCCIO/2
LVCMOS 1.2 = VCCIO/2
LVCMOS 2.5 I/O (Z -> H)
188
0pF
VCCIO/2
VOL
LVCMOS 2.5 I/O (Z -> L)
VCCIO/2
VOH
LVCMOS 2.5 I/O (H -> Z)
VOH - 0.15
VOL
LVCMOS 2.5 I/O (L -> Z)
VOL + 0.15
VOH
Note: Output test conditions for all other interfaces are determined by the respective standards.
DUT
VT
R1
CL
Test Point
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