Figure 2-29. Output Register Block Figure 2-30. ODDRXB Primitive Tristate Register Blo" />
參數(shù)資料
型號: LFEC1E-4TN144C
廠商: Lattice Semiconductor Corporation
文件頁數(shù): 85/163頁
文件大?。?/td> 0K
描述: IC FPGA 1.5KLUTS 97I/O 144-TQFP
標(biāo)準(zhǔn)包裝: 60
系列: EC
邏輯元件/單元數(shù): 1500
RAM 位總計: 18432
輸入/輸出數(shù): 97
電源電壓: 1.14 V ~ 1.26 V
安裝類型: 表面貼裝
工作溫度: 0°C ~ 85°C
封裝/外殼: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-TQFP(20x20)
其它名稱: 220-1772
LFEC1E-4TN144C-ND
2-25
Architecture
LatticeECP/EC Family Data Sheet
Figure 2-29. Output Register Block
Figure 2-30. ODDRXB Primitive
Tristate Register Block
The tristate register block provides the ability to register tri-state control signals from the core of the device before
they are passed to the sysI/O buffers. The block contains a register for SDR operation and an additional latch for
DDR operation. Figure 2-31 shows the diagram of the Tristate Register Block.
In SDR mode, ONEG1 feeds one of the flip-flops that then feeds the output. The flip-flop can be configured a D-
type or latch. In DDR mode, ONEG1 is fed into one register on the positive edge of the clock and OPOS1 is
latched. A multiplexer running off the same clock selects the correct register for feeding to the output (D0).
D
Q
D
Q
D-Type
ONEG0
From
Routing
CLK1
Programmed
Control
DO
Latch
LE*
*Latch is transparent when input is low.
OPOS0
OUTDDN
/LATCH
0
1
0
1
To sysIO
Buffer
ODDRXB
LSR
Q
DB
CLK
DA
相關(guān)PDF資料
PDF描述
IR2156S IC CNTL BALLAST 600V 0.5A 14SOIC
RSA30DTBT-S664 CONN EDGECARD 60POS R/A .125 SLD
F931A156MAA CAP TANT 15UF 10V 20% 1206
MC78M15CT IC REG LDO 15V .5A TO-220
RMA30DTBT-S664 CONN EDGECARD 60POS R/A .125 SLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LFEC1E-4TN144I 功能描述:FPGA - 現(xiàn)場可編程門陣列 1.5K LUTs 97 IO 1.2V -4 Spd I 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
LFEC1E-5F256C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
LFEC1E-5F256I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
LFEC1E-5F484C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
LFEC1E-5F484I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet