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參數資料
| 型號： | LFX125EB-03F256C |
| 廠商： | Lattice Semiconductor Corporation |
| 文件頁數： | 30/119頁 |
| 文件大小： | 0K |
| 描述： | IC FPGA 139K GATES 256-BGA |
| 標準包裝： | 90 |
| 系列： | ispXPGA® |
| 邏輯元件/單元數： | 1936 |
| RAM 位總計： | 94208 |
| 輸入/輸出數： | 160 |
| 門數： | 139000 |
| 電源電壓： | 2.3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 256-BGA |
| 供應商設備封裝： | 256-FPBGA（17x17） |
| 其它名稱： | 220-1237 |
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Lattice Semiconductor
ispXPGA Family Data Sheet
14
sysCLOCK PLL Description
The sysCLOCK PLL circuitry consists of Phase-Lock Loops (PLLs) and the various dividers, reset, and feedback
signals associated with the PLLs. This feature gives the user the ability to synthesize clock frequencies and gener-
ate multiple clock signals for routing within the device. Furthermore, it can generate clock signals that are aligned
either at the board level or the device level.
The ispXPGA devices provide up to eight PLLs. Each PLL receives its input clock from its associated global clock
pin, and its output is routed to the associated global clock net. For example, PLL0 receives its clock input from the
GCLK0 global clock pin and provides output to the CLK0 global clock net. The PLL also has the ability to output a
secondary clock that is a division of the primary clock output. When using the secondary clock, the secondary
clock will be routed to the neighboring global clock net. For example, PLL0 will drive its primary clock output on the
CLK0 global clock net and its secondary clock output will drive the CLK1 global clock net. Additionally, each PLL
has a set of PLL_RST, PLL_FBK, and PLL_LOCK signals. The PLL_RST signal can be generated through routing
or a dedicated dual-function I/O pin. The PLL_FBK signal can be generated through a dedicated dual-function I/O
pin or internally from the Global Clock net associated with the PLL. The PLL_LOCK signal feeds routing directly
from the sysCLOCK PLL circuit. Figure 17 illustrates how the PLL_RST and PLL_FBK signals are generated.
Each PLL has four dividers associated with it, M, N, V, and K. The M divider is used to divide the clock signal,
while the N divider is used to multiply the clock signal. The V divider allows the VCO frequency to operate at
higher frequencies than the clock output, thereby increasing the frequency range. The K divider is only used when
a secondary clock output is needed. This divider divides the primary clock output and feeds to the adjacent global
clock net. Different combinations of these dividers allow the user to synthesize clock frequencies. Figure 16 shows
the ispXPGA PLL block diagram.
The PLL also has a delay feature that allows the output clock to be advanced or delayed to improve set-up and
clock-to-out times for better performance. This operates by inserting delay on the input or feedback lines of the
PLL. For more information on the PLL, please refer to TN1003, sysCLOCK PLL Usage and Design Guidelines.
Figure 16. ispXPGA PLL Block Diagram
GCLK_IN
PLL_RST
PLL_FBK
PLL_LOCK
CLK_OUT
Clock Net
Input Clock
(M) Divider
÷ 1 to 32
PLL (n)
Programmable
+Delay
--------------------
Programmable
-Delay
To Adjacent_PLL
Feedback
Divider (N)
X 1 to 32
Post-scalar
(V) Divider
÷
1, 2, 4, 8,
16, 32
Clock (K)
Divider
÷
2, 4, 8,
16, 32
From
Adjacent_PLL
SELECT
DEVICES
DISCONTINUED
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LFX125EB-03F256I | 功能描述:FPGA - 現場可編程門陣列 139K Gates, 160 I/O 2.5/3.3V, -3 speed RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 |
| LFX125EB-03F516C | 功能描述:FPGA - 現場可編程門陣列 139K 176 I/O ispJTAG RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 |
| LFX125EB-03F516I | 功能描述:FPGA - 現場可編程門陣列 139K 176 I/O ispJTAG RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 |
| LFX125EB-03FH516C | 功能描述:FPGA - 現場可編程門陣列 Use LFX125EB-03F516C RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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 |
| LFX125EB-03FH516I | 功能描述:FPGA - 現場可編程門陣列 Use LFX125EB-03F516I RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數量: 邏輯塊數量:943 內嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數量: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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