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| 型號(hào)： | LFXP15C-4FN256C |
| 廠(chǎng)商： | LATTICE SEMICONDUCTOR CORP |
| 元件分類(lèi)： | FPGA |
| 中文描述： | FPGA, 1932 CLBS, PBGA256 |
| 封裝： | 17 X 17 MM, LEAD FREE, FPBGA-256 |
| 文件頁(yè)數(shù)： | 51/130頁(yè) |
| 文件大?。?/td> | 1312K |
| 代理商： | LFXP15C-4FN256C |
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2-24
Architecture
Lattice Semiconductor
LatticeXP Family Data Sheet
Typical I/O Behavior During Power-up
The internal power-on-reset (POR) signal is deactivated when VCC and VCCAUX have reached satisfactory levels.
After the POR signal is deactivated, the FPGA core logic becomes active. It is the user’s responsibility to ensure
that all other VCCIO banks are active with valid input logic levels to properly control the output logic states of all the
I/O banks that are critical to the application. The default configuration of the I/O pins in a blank device is tri-state
with a weak pull-up to VCCIO. The I/O pins will not take on the user configuration until VCC, VCCAUX and VCCIO
have reached satisfactory levels at which time the I/Os will take on the user-configured settings.
The VCC and VCCAUX supply the power to the FPGA core fabric, whereas the VCCIO supplies power to the I/O buf-
fers. In order to simplify system design while providing consistent and predictable I/O behavior, it is recommended
that the I/O buffers be powered-up prior to the FPGA core fabric. VCCIO supplies should be powered up before or
together with the VCC and VCCAUX supplies.
Supported Standards
The LatticeXP sysIO buffer supports both single-ended and differential standards. Single-ended standards can be
further subdivided into LVCMOS, LVTTL and other standards. The buffers support the LVTTL, LVCMOS 1.2, 1.5,
1.8, 2.5 and 3.3V standards. In the LVCMOS and LVTTL modes, the buffer has individually configurable options for
drive strength, bus maintenance (weak pull-up, weak pull-down, or a bus-keeper latch) and open drain. Other sin-
gle-ended standards supported include SSTL and HSTL. Differential standards supported include LVDS, BLVDS,
LVPECL, differential SSTL and differential HSTL. Tables 2-7 and 2-8 show the I/O standards (together with their
supply and reference voltages) supported by the LatticeXP devices. For further information on utilizing the sysIO
buffer to support a variety of standards please see the details of additional technical documentation at the end of
this data sheet.
Table 2-7. Supported Input Standards
Input Standard
VREF (Nom.)
VCCIO
1 (Nom.)
Single Ended Interfaces
LVTTL
—
LVCMOS33
2
——
LVCMOS25
2
——
LVCMOS18
—
1.8
LVCMOS15
—
1.5
LVCMOS12
2
——
PCI
—
3.3
HSTL18 Class I, II
0.9
—
HSTL18 Class III
1.08
—
HSTL15 Class I
0.75
—
HSTL15 Class III
0.9
—
SSTL3 Class I, II
1.5
—
SSTL2 Class I, II
1.25
—
SSTL18 Class I
0.9
—
Differential Interfaces
Differential SSTL18 Class I
—
Differential SSTL2 Class I, II
—
Differential SSTL3 Class I, II
—
Differential HSTL15 Class I, III
—
Differential HSTL18 Class I, II, III
—
LVDS, LVPECL
—
BLVDS
—
1. When not specified VCCIO can be set anywhere in the valid operating range.
2. JTAG inputs do not have a fixed threshold option and always follow VCCJ.
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相關(guān)代理商/技術(shù)參數(shù) |
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| LFXP15C-4FN256I | 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 15.4K LUTs 188 IO 1. 8/2.5/3.3V-4 Spd I 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
| LFXP15C-4FN388C | 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 15.4K LUTs 268 IO 1. 8/2.5/3.3V -4 Spd 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
| LFXP15C-4FN388I | 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 15.4K LUTs 268 IO 1. 8/2.5/3.3V-4 Spd I 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
| LFXP15C-4FN484C | 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 15.4K LUTs 1.8/2.5/3 .3V -4 Spd 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
| LFXP15C-4FN484I | 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 15.4K LUTs 1.8/2.5/3 .3V-4 Spd I 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
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