參數(shù)資料
型號： EP20K400EQI240-2
廠商： ALTERA CORP
元件分類： PLD
英文描述： LOADABLE PLD, PQFP240
封裝： PLASTIC, QFP-240
文件頁數(shù)： 30/65頁
文件大小： 781K
代理商： EP20K400EQI240-2
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Altera Corporation
APEX 20K Programmable Logic Device Family Data Sheet
Preliminary Information
An ESB is fed by the local interconnect, which is driven by adjacent LEs
(for high-speed connection to the ESB) or the MegaLAB interconnect. The
ESB can drive the local, MegaLAB, or FastTrack Interconnect routing
structure to drive LEs and IOEs in the same MegaLAB structure or
anywhere in the device.
Implementing Logic in ROM
In addition to implementing logic with product terms, the ESB can
implement logic functions when it is programmed with a read-only
pattern during configuration, creating a large LUT. With LUTs,
combinatorial functions are implemented by looking up the results, rather
than by computing them. This implementation of combinatorial functions
can be faster than using algorithms implemented in general logic, a
performance advantage that is further enhanced by the fast access times
of ESBs. The large capacity of ESBs enables designers to implement
complex functions in one logic level without the routing delays associated
with linked LEs or distributed RAM blocks. Parameterized functions such
as LPM functions can take advantage of the ESB automatically. Further,
the Quartus software can implement portions of a design with ESBs
where appropriate.
Programmable Speed/Power Control
APEX 20K ESBs offer a high-speed mode that supports very fast operation
on an ESB-by-ESB basis. When high speed is not required, this feature can
be turned off to reduce the ESB’s power dissipation by up to 50%. ESBs
that run at low power incur a nominal timing delay adder. This
Turbo BitTM option is available for ESBs that implement product-term
logic or memory functions. An ESB that is not used will be powered down
so it does not consume DC current.
Designers can program each ESB in the APEX 20K device for either
high-speed or low-power operation. As a result, speed-critical paths in the
design can run at high speed, while the remaining paths operate at
reduced power.
I/O Structure
The APEX 20K I/O element (IOE) contains a bidirectional I/O buffer and
a register that can be used either as an input register for external data
requiring fast setup times, or as an output register for data requiring fast
clock-to-output performance. IOEs can be used as input, output, or
bidirectional pins. The Quartus Compiler uses the programmable
inversion option to invert signals from the row and column interconnect
automatically where appropriate. Because the APEX 20K IOE offers one
output enable per pin, the Quartus Compiler can emulate open-drain
operation efficiently.
相關(guān)PDF資料
PDF描述
EP20K400EQI240-3 LOADABLE PLD, PQFP240
EP20K400ERC240-1 LOADABLE PLD, PQFP240
EP20K400ERC240-2 LOADABLE PLD, PQFP240
EP20K400ERC240-3 LOADABLE PLD, PQFP240
EP20K400ERI240-1 LOADABLE PLD, PQFP240
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EP20K400FC672-1 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 1664 Macros 502 IO 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K400FC672-1ES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FPGA
EP20K400FC672-1X 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 1664 Macros 502 IO 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K400FC672-2 功能描述:FPGA - 現(xiàn)場可編程門陣列 CPLD - APEX 20K 1664 Macros 502 IO 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-256
EP20K400FC672-2ES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FPGA
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