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參數(shù)資料
| 型號(hào)： | XC4028EX-2HQ208C |
| 廠商： | Xilinx Inc |
| 文件頁數(shù)： | 56/68頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FPGA 1024 CLB'S 208-HQFP |
| 標(biāo)準(zhǔn)包裝： | 24 |
| 系列： | XC4000E/X |
| LAB/CLB數(shù)： | 1024 |
| 邏輯元件/單元數(shù)： | 2432 |
| RAM 位總計(jì)： | 32768 |
| 輸入/輸出數(shù)： | 160 |
| 門數(shù)： | 28000 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 208-BFQFP 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 208-PQFP（28x28） |
| 其它名稱： | 122-1126 |
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R
XC4000E and XC4000X Series Field Programmable Gate Arrays
6-10
May 14, 1999 (Version 1.6)
Flip-Flops
The CLB can pass the combinatorial output(s) to the inter-
connect network, but can also store the combinatorial
results or other incoming data in one or two ip-ops, and
connect their outputs to the interconnect network as well.
The two edge-triggered D-type ip-ops have common
clock (K) and clock enable (EC) inputs. Either or both clock
inputs can also be permanently enabled. Storage element
functionality is described in Table 2.
Latches (XC4000X only)
The CLB storage elements can also be congured as
latches. The two latches have common clock (K) and clock
enable (EC) inputs. Storage element functionality is
described in Table 2.
Clock Input
Each ip-op can be triggered on either the rising or falling
clock edge. The clock pin is shared by both storage ele-
ments. However, the clock is individually invertible for each
storage element. Any inverter placed on the clock input is
automatically absorbed into the CLB.
Clock Enable
The clock enable signal (EC) is active High. The EC pin is
shared by both storage elements. If left unconnected for
either, the clock enable for that storage element defaults to
the active state. EC is not invertible within the CLB.
LOGIC
FUNCTION
OF
G1-G4
G4
G3
G2
G1
G'
LOGIC
FUNCTION
OF
F1-F4
F4
F3
F2
F1
F'
LOGIC
FUNCTION
OF
F', G',
AND
H1
H'
DIN
F'
G'
H'
DIN
F'
G'
H'
G'
H'
F'
S/R
CONTROL
D
EC
RD
Bypass
SD
YQ
XQ
Q
S/R
CONTROL
D
EC
RD
SD
Q
1
K
(CLOCK)
Multiplexer Controlled
by Configuration Program
Y
X
DIN/H2
H1
SR/H0
EC
X6692
C1 C4
4
Figure 1: Simplied Block Diagram of XC4000 Series CLB (RAM and Carry Logic functions not shown)
Table 2: CLB Storage Element Functionality
(active rising edge is shown)
Mode
K
EC
SR
D
Q
Power-Up or
GSR
XXXX
SR
Flip-Flop
XX
1
X
SR
__/
1*
0*
D
0X
0*
X
Q
Latch
11*
0*
X
Q
01*
0*
D
Both
X
0
0*
X
Q
Legend:
X
__/
SR
0*
1*
Don’t care
Rising edge
Set or Reset value. Reset is default.
Input is Low or unconnected (default value)
Input is High or unconnected (default value)
Product Obsolete or Under Obsolescence
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XC4028EX-2HQ240C | 制造商:Xilinx 功能描述: |
| XC4028EX-3HQ208C | 功能描述:IC FPGA 1024 CLB'S 208-HQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場(chǎng)可編程門陣列） 系列:XC4000E/X 產(chǎn)品變化通告:XC4000(E,L) Discontinuation 01/April/2002 標(biāo)準(zhǔn)包裝:24 系列:XC4000E/X LAB/CLB數(shù):100 邏輯元件/單元數(shù):238 RAM 位總計(jì):3200 輸入/輸出數(shù):80 門數(shù):3000 電源電壓:4.5 V ~ 5.5 V 安裝類型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:120-BCBGA 供應(yīng)商設(shè)備封裝:120-CPGA（34.55x34.55） |
| XC4028EX-3HQ208I | 制造商:Xilinx 功能描述: |
| XC4028EX-3HQ240C | 制造商:Xilinx 功能描述: |
| XC4028EX-3HQ240I | 制造商:Xilinx 功能描述: |
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