參數(shù)資料
型號： EP2C20F256I6N
廠商： ALTERA CORP
元件分類： FPGA
英文描述： FPGA, 1196 CLBS, PBGA256
封裝： LEAD FREE, FBGA-256
文件頁數(shù)： 134/168頁
文件大?。?/td> 2206K
代理商： EP2C20F256I6N
2–56
Altera Corporation
Cyclone II Device Handbook, Volume 1
February 2007
I/O Structure & Features
Cyclone II devices support driver impedance matching to the impedance
of the transmission line, typically 25 or 50
Ω. When used with the output
drivers, on-chip termination sets the output driver impedance to 25 or
50
Ω. Cyclone II devices also support I/O driver series termination
(RS = 50 Ω) for SSTL-2 and SSTL-18. Table 2–19 lists the I/O standards that
support impedance matching and series termination.
1
The recommended frequency range of operation is pending
silicon characterization.
On-chip series termination can be supported on any I/O bank. VCCIO and
VREF must be compatible for all I/O pins in order to enable on-chip series
termination in a given I/O bank. I/O standards that support different RS
values can reside in the same I/O bank as long as their VCCIO and VREF are
not conflicting.
1
When using on-chip series termination, programmable drive
strength is not available.
Impedance matching is implemented using the capabilities of the output
driver and is subject to a certain degree of variation, depending on the
process, voltage and temperature. The actual tolerance is pending silicon
characterization.
Table 2–19. I/O Standards Supporting Series Termination
I/O Standards
Target RS (
Ω)VCCIO (V)
3.3-V LVTTL and LVCMOS
25 (2)
3.3
2.5-V LVTTL and LVCMOS
50 (2)
2.5
1.8-V LVTTL and LVCMOS
50 (2)
1.8
SSTL-2 class I
50 (2)
2.5
SSTL-18 class I
50 (2)
1.8
Notes to Table 2–19:
(1)
Supported conditions are VCCIO =VCCIO ±50 mV.
(2)
These RS values are nominal values. Actual impedance varies across process,
voltage, and temperature conditions.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EP2C20F256I8 功能描述:FPGA - 現(xiàn)場可編程門陣列 FPGA - Cyclone II 1172 LABs 152 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP2C20F256I8GA 制造商:Altera Corporation 功能描述:
EP2C20F256I8N 功能描述:FPGA - 現(xiàn)場可編程門陣列 FPGA - Cyclone II 1172 LABs 152 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP2C20F484C6 功能描述:FPGA - 現(xiàn)場可編程門陣列 FPGA - Cyclone II 1172 LABs 315 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP2C20F484C6N 功能描述:FPGA - 現(xiàn)場可編程門陣列 FPGA - Cyclone II 1172 LABs 315 IOs RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
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