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參數(shù)資料
| 型號(hào)： | XCV812E-7FG900C |
| 廠商： | Xilinx Inc |
| 文件頁(yè)數(shù)： | 55/118頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FPGA 1.8V C-TEMP 900-FBGA |
| 產(chǎn)品變化通告： | FPGA Family Discontinuation 18/Apr/2011 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Virtex®-E EM |
| LAB/CLB數(shù)： | 4704 |
| 邏輯元件/單元數(shù)： | 21168 |
| RAM 位總計(jì)： | 1146880 |
| 輸入/輸出數(shù)： | 556 |
| 門數(shù)： | 254016 |
| 電源電壓： | 1.71 V ~ 1.89 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 900-BBGA |
| 供應(yīng)商設(shè)備封裝： | 900-FBGA |
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Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays
DS025-2 (v3.0) March 21, 2014
Module 2 of 4
37
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
The following list details variations of the IOBUF symbol.
IOBUF
IOBUF_S_2
IOBUF_S_4
IOBUF_S_6
IOBUF_S_8
IOBUF_S_12
IOBUF_S_16
IOBUF_S_24
IOBUF_F_2
IOBUF_F_4
IOBUF_F_6
IOBUF_F_8
IOBUF_F_12
IOBUF_F_16
IOBUF_F_24
IOBUF_LVCMOS2
IOBUF_PCI33_3
IOBUF_PCI66_3
IOBUF_GTL
IOBUF_GTLP
IOBUF_HSTL_I
IOBUF_HSTL_III
IOBUF_HSTL_IV
IOBUF_SSTL3_I
IOBUF_SSTL3_II
IOBUF_SSTL2_I
IOBUF_SSTL2_II
IOBUF_CTT
IOBUF_AGP
IOBUF_LVCMOS18
IOBUF_LVDS
IOBUF_LVPECL
When the IOBUF symbol used supports an I/O standard
that requires a differential amplifier input, the IOBUF auto-
matically configures with a differential amplifier input buffer.
The low-voltage I/O standards with a differential amplifier
input require an external reference voltage input VREF.
The voltage reference signal is “banked” within the Virtex-E
device on a half-edge basis such that for all packages there
on page 34 for a representation of the Virtex-E I/O banks.
Within each bank approximately one of every six I/O pins is
automatically configured as a VREF input. After placing a dif-
ferential amplifier input signal within a given VREF bank, the
same external source must drive all I/O pins configured as a
VREF input.
IOBUF placement restrictions require any differential ampli-
fier input signals within a bank be of the same standard.
The Virtex-E series supports eight banks for the HQ and PQ
packages. The CS package supports four VCCO banks.
Additional restrictions on the Virtex-E SelectI/O IOBUF
placement require that within a given VCCO bank each
IOBUF must share the same output source drive voltage.
Input buffers of any type and output buffers that do not
require VCCO can be placed within the same VCCO bank.
The LOC property can specify a location for the IOBUF.
An optional delay element is associated with the input path
in each IOBUF. When the IOBUF drives an input flip-flop
within the IOB, the delay element activates by default to
ensure a zero hold-time requirement. Override this default
with the NODELAY=TRUE property.
In the case when the IOBUF does not drive an input flip-flop
within the IOB, the delay element de-activates by default to
provide higher performance. To delay the input signal, acti-
vate the delay element with the DELAY=TRUE property.
3-state output buffers and bidirectional buffers can have
either a weak pull-up resistor, a weak pull-down resistor, or
a weak “keeper” circuit. Control this feature by adding the
appropriate symbol to the output net of the IOBUF (PUL-
LUP, PULLDOWN, or KEEPER).
SelectI/O Properties
Access to some of the SelectI/O features (for example, loca-
tion constraints, input delay, output drive strength, and slew
rate) is available through properties associated with these
features.
Input Delay Properties
An optional delay element is associated with each IBUF.
When the IBUF drives a flip-flop within the IOB, the delay
element activates by default to ensure a zero hold-time
requirement. Use the NODELAY=TRUE property to over-
ride this default.
In the case when the IBUF does not drive a flip-flop within
the IOB, the delay element by default de-activates to pro-
vide higher performance. To delay the input signal, activate
the delay element with the DELAY=TRUE property.
Figure 42: Input/Output Buffer Symbol (IOBUF)
IO
I
IOBUF
x133_06_111699
T
O
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XCV812E-7FG900I | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV812E-8BG404C | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV812E-8BG404I | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV812E-8BG556C | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV812E-8BG556I | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
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