參數(shù)資料
型號: XCS20-3VQ208C
廠商: Xilinx, Inc.
英文描述: Spartan and Spartan-XL Families Field Programmable Gate Arrays
中文描述: 斯巴達和Spartan - xL的家庭現(xiàn)場可編程門陣列
文件頁數(shù): 40/82頁
文件大?。?/td> 863K
代理商: XCS20-3VQ208C
Spartan and Spartan-XL Families Field Programmable Gate Arrays
DS060 (v1.6) September 19, 2001
Product Specification
1-800-255-7778
R
Spartan CLB RAM Synchronous (Edge-Triggered) Write Operation Guidelines
Testing of switching parameters is modeled after testing
methods specified by MIL-M-38510/605. All devices are
100% functionally tested. Internal timing parameters are
derived from measuring internal test patterns. Listed below
are representative values. For more specific, more precise,
by the static timing analyzer (TRCE in the Xilinx Develop-
ment System) and back-annotated to the simulation netlist.
All timing parameters assume worst-case operating condi-
tions (supply voltage and junction temperature). Values
apply to all Spartan devices and are expressed in nanosec-
onds unless otherwise noted.
Symbol
Single Port RAM
Size(1)
Speed Grade
Units
-4
-3
Min
Max
Min
Max
Write Operation
TWCS
Address write cycle time (clock K period)
16x2
8.0
-
11.6
-
ns
TWCTS
32x1
8.0
-
11.6
-
ns
TWPS
Clock K pulse width (active edge)
16x2
4.0
-
5.8
-
ns
TWPTS
32x1
4.0
-
5.8
-
ns
TASS
Address setup time before clock K
16x2
1.5
-
2.0
-
ns
TASTS
32x1
1.5
-
2.0
-
ns
TAHS
Address hold time after clock K
16x2
0.0
-
0.0
-
ns
TAHTS
32x1
0.0
-
0.0
-
ns
TDSS
DIN setup time before clock K
16x2
1.5
-
2.7
-
ns
TDSTS
32x1
1.5
-
1.7
-
ns
TDHS
DIN hold time after clock K
16x2
0.0
-
0.0
-
ns
TDHTS
32x1
0.0
-
0.0
-
ns
TWSS
WE setup time before clock K
16x2
1.5
-
1.6
-
ns
TWSTS
32x1
1.5
-
1.6
-
ns
TWHS
WE hold time after clock K
16x2
0.0
-
0.0
-
ns
TWHTS
32x1
0.0
-
0.0
-
ns
TWOS
Data valid after clock K
16x2
-
6.5
-
7.9
ns
TWOTS
32x1
-
7.0
-
9.3
ns
Read Operation
TRC
Address read cycle time
16x2
2.6
-
2.6
-
ns
TRCT
32x1
3.8
-
3.8
-
ns
TILO
Data valid after address change (no Write
Enable)
16x2
-
1.2
-
1.6
ns
TIHO
32x1
-
2.0
-
2.7
ns
TICK
Address setup time before clock K
16x2
1.8
-
2.4
-
ns
TIHCK
32x1
2.9
-
3.9
-
ns
Notes:
1.
Timing for 16 x 1 RAM option is identical to 16 x 2 RAM timing.
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