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| 型號： | EP1K50FC256-2N |
| 廠商： | Altera |
| 文件頁數(shù)： | 9/86頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ACEX 1K FPGA 50K 256-FBGA |
| 產(chǎn)品培訓(xùn)模塊： | Three Reasons to Use FPGA's in Industrial Designs |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | ACEX-1K® |
| LAB/CLB數(shù)： | 360 |
| 邏輯元件/單元數(shù)： | 2880 |
| RAM 位總計(jì)： | 40960 |
| 輸入/輸出數(shù)： | 186 |
| 門數(shù)： | 199000 |
| 電源電壓： | 2.375 V ~ 2.625 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 256-BGA |
| 供應(yīng)商設(shè)備封裝： | 256-FBGA（17x17） |
| 其它名稱： | 544-1841 EP1K50FC256-2N-ND |
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Altera Corporation
17
ACEX 1K Programmable Logic Device Family Data Sheet
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Carry Chain
The carry chain provides a very fast (as low as 0.2 ns) carry-forward
function between LEs. The carry-in signal from a lower-order bit drives
forward into the higher-order bit via the carry chain, and feeds into both
the LUT and the next portion of the carry chain. This feature allows the
ACEX 1K architecture to efficiently implement high-speed counters,
adders, and comparators of arbitrary width. Carry chain logic can be
created automatically by the compiler during design processing, or
manually by the designer during design entry. Parameterized functions,
such as LPM and DesignWare functions, automatically take advantage of
carry chains.
Carry chains longer than eight LEs are automatically implemented by
linking LABs together. For enhanced fitting, a long carry chain skips
alternate LABs in a row. A carry chain longer than one LAB skips either
from even-numbered LAB to even-numbered LAB, or from odd-
numbered LAB to odd-numbered LAB. For example, the last LE of the
first LAB in a row carries to the first LE of the third LAB in the row. The
carry chain does not cross the EAB at the middle of the row. For instance,
in the EP1K50 device, the carry chain stops at the eighteenth LAB, and a
new carry chain begins at the nineteenth LAB.
Figure 9 shows how an n-bit full adder can be implemented in n +1 LEs
with the carry chain. One portion of the LUT generates the sum of two bits
using the input signals and the carry-in signal; the sum is routed to the
output of the LE. The register can be bypassed for simple adders or used
for an accumulator function. Another portion of the LUT and the carry
chain logic generates the carry-out signal, which is routed directly to the
carry-in signal of the next-higher-order bit. The final carry-out signal is
routed to an LE, where it can be used as a general-purpose signal.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EP1K50FC256-2P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA) |
| EP1K50FC256-2X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA) |
| EP1K50FC256-3 | 功能描述:FPGA - 現(xiàn)場可編程門陣列 FPGA - ACEX 1K 360 LABs 186 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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256 |
| EP1K50FC256-3AA | 制造商:Altera Corporation 功能描述:Precision Single, Dual And Quad Rail-to-rail Output Single Supply Amplifiers 制造商:Altera 功能描述:Precision Single, Dual And Quad Rail-to-rail Output Single Supply Amplifiers |
| EP1K50FC256-3F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field Programmable Gate Array (FPGA) |
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