参数资料
型号: XA3S250E-4TQG144I
厂商: XILINX INC
元件分类: FPGA
英文描述: FPGA, 612 CLBS, 250000 GATES, 572 MHz, PQFP144
封装: LEAD FREE, TQFP-144
文件页数: 14/37页
文件大小: 717K
代理商: XA3S250E-4TQG144I
DS635 (v2.0) September 9, 2009
Product Specification
21
R
Table 21: CLB Distributed RAM Switching Characteristics
Symbol
Description
-4
Units
Min
Max
Clock-to-Output Times
TSHCKO
Time from the active edge at the CLK input to data appearing on the
distributed RAM output
-2.35
ns
Setup Times
TDS
Setup time of data at the BX or BY input before the active transition at the
CLK input of the distributed RAM
0.46
-ns
TAS
Setup time of the F/G address inputs before the active transition at the CLK
input of the distributed RAM
0.52
-ns
TWS
Setup time of the write enable input before the active transition at the CLK
input of the distributed RAM
0.40
-ns
Hold Times
TDH
Hold time of the BX, BY data inputs after the active transition at the CLK
input of the distributed RAM
0.15
-ns
TAH, TWH
Hold time of the F/G address inputs or the write enable input after the active
transition at the CLK input of the distributed RAM
0
-ns
Clock Pulse Width
TWPH, TWPL
Minimum High or Low pulse width at CLK input
1.01
-ns
Table 22: CLB Shift Register Switching Characteristics
Symbol
Description
-4
Units
Min
Max
Clock-to-Output Times
TREG
Time from the active edge at the CLK input to data appearing on the shift
register output
-4.16
ns
Setup Times
TSRLDS
Setup time of data at the BX or BY input before the active transition at the
CLK input of the shift register
0.46
-ns
Hold Times
TSRLDH
Hold time of the BX or BY data input after the active transition at the CLK
input of the shift register
0.16
-ns
Clock Pulse Width
TWPH, TWPL
Minimum High or Low pulse width at CLK input
1.01
-ns
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