參數(shù)資料
型號(hào)： XC3142A-3VQ100C
廠商： XILINX INC
元件分類(lèi)： FPGA
英文描述： Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
中文描述： FPGA, 144 CLBS, 2000 GATES, 270 MHz, PQFP100
封裝： PLASTIC, VQFP-100
文件頁(yè)數(shù)： 14/50頁(yè)
文件大?。?/td> 474K
代理商： XC3142A-3VQ100C
XC3000, XC3000A, XC3000L, XC3100, XC3100A Logic Cell Array Families
2-116
Control of the 3-state input by the same signal that drives
the buffer input, creates an open-drain wired-AND func-
tion. A logic High on both buffer inputs creates a high
impedance, which represents no contention. A logic Low
enables the buffer to drive the Longline Low. See Figure
15b. Pull-up resistors are available at each end of the
Longline to provide a High output when all connected
buffers are non-conducting. This forms fast, wide gating
functions. When data drives the inputs, and separate
signals drive the 3-state control lines, these buffers form
multiplexers (3-state busses). In this case, care must be
used to prevent contention through multiple active buffers
Figure 14
.
Programmable Interconnection of Longlines.
This is provided at the edges of the routing area. Three-state buffers
allow the use of horizontal Longlines to form on-chip wired AND and multiplexed buses. The left two non-clock vertical Longlines
per column (except XC3020) and the outer perimeter Longlines may be programmed as connectible half-length lines.
X1244
X1741
D
A
A
D
B
B
D
C
C
D
N
N
D
A
A
+
=
D
B
B
+ D
C
C
+
D
N
N
Z
… +
WEAK
KEEPER
CIRCUIT
Figure 15b.
3-State Buffers Implement a Multiplexer.
The selection is accomplished by the buffer 3-state signal.
V
CC
D
A
D
B
D
C
D
N
V
CC
Z
=
D
A
D
B
D
C
...
D
N
X3036
(LOW)
T
OE
Figure 15a
.
3-State Buffers Implement a Wired-AND Function.
When all the buffer 3-state
lines are High, (high impedance), the pull-up resistor(s) provide the High output. The buffer
inputs are driven by the control signals or a Low.
相關(guān)PDF資料
PDF描述
XC3042L-8PC84C Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
XC3042L-8PC84I XTAL MTL T/H HC49/U
XC3190A-4PP175C Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
XC3195A-4PP175C Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
XC3190A-4PP175I Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XC3142A-3VQ100I 制造商:XILINX 制造商全稱(chēng):XILINX 功能描述:Field Programmable Gate Arrays (XC3000A/L, XC3100A/L)
XC3142A-4PC84C 制造商:Xilinx 功能描述:CMOS FPGA SMD 3142 PLCC84 5.25V
XC3142A-4PC84C0100 制造商:Xilinx 功能描述:
XC3142A-4PC84I 制造商:Xilinx 功能描述:
XC3142A-4PCG84 制造商:Xilinx 功能描述:CMOS FPGA SMD 3142 PLCC84 5.25V
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*