參數(shù)資料
型號: EP20K400EQI240-3
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): 31/65頁
文件大?。?/td> 781K
代理商: EP20K400EQI240-3
Altera Corporation
59
Preliminary Information
APEX 20K Programmable Logic Device Family Data Sheet
The APEX 20K IOE includes programmable delays that can be activated
to ensure a zero hold time. A path in which a pin directly drives a register
may require the delay, whereas a path in which a pin drives a register
through combinatorial logic may not require the delay. The Quartus
timing analyzer can provide guidance as to where positive hold times
occur in a design; at those points, the delay should be turned on. Another
programmable delay can be used to increase clock-to-output time for use
when driving devices with a hold time requirement. Figure 25 shows the
APEX 20K IOE.
The register in the APEX 20K IOE can be programmed to power up high
or low after configuration is complete. If it is programmed to power up
low, an asynchronous clear can control the register. If it is programmed to
power up high, the register cannot be asynchronously cleared or preset.
This feature is useful for cases where the APEX 20K device controls an
active-low input or another device; it prevents inadvertent activation of
the input upon power-up.
相關(guān)PDF資料
PDF描述
EP20K400ERC240-1 LOADABLE PLD, PQFP240
EP20K400ERC240-2 LOADABLE PLD, PQFP240
EP20K400ERC240-3 LOADABLE PLD, PQFP240
EP20K400ERI240-1 LOADABLE PLD, PQFP240
EP20K400ERI240-2 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(fēng)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(fēng)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(fēng)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