XCS05-3BG256C XILINX [Xilinx, Inc], XCS05-3BG256C Datasheet - Page 56

• Manufacturer Part Number: XCS05-3BG256C
• Description: Spartan and Spartan-XL FPGA
• Manufacturer: XILINX [Xilinx, Inc]

Spartan and Spartan-XL FPGA Families Data Sheet
Spartan-XL Family CLB RAM Synchronous (Edge-Triggered) Write Operation Guidelines
All devices are 100% functionally tested. Internal timing
parameters are derived from measuring internal test pat-
terns. Listed below are representative values. For more
specific, more precise, and worst-case guaranteed data,
use the values reported by the static timing analyzer (TRCE
56
Notes:
1.
Write Operation
Read Operation
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WCTS
WPTS
WSTS
WOTS
ASTS
DSTS
WOS
IHCK
WCS
WPS
WSS
Timing for 16 x 1 RAM option is identical to 16 x 2 RAM timing.
ASS
DSS
RCT
IHO
ILO
ICK
RC
Address write cycle time (clock K period)
Clock K pulse width (active edge)
Address setup time before clock K
DIN setup time before clock K
WE setup time before clock K
All hold times after clock K
Data valid after clock K
Address read cycle time
Data Valid after address change (no Write
Enable)
Address setup time before clock K
Single Port RAM
www.xilinx.com
Size
16x2
32x1
16x2
32x1
16x2
32x1
16x2
32x1
16x2
32x1
16x2
32x1
16x2
16x2
32x1
16x2
32x1
16x2
32x1
in the Xilinx Development System) and back-annotated to
the simulation netlist. All timing parameters assume
worst-case operating conditions (supply voltage and junc-
tion temperature). Values apply to all Spartan-XL devices
and are expressed in nanoseconds unless otherwise noted.
(1)
Min
7.7
7.7
3.1
3.1
1.3
1.5
1.5
1.8
1.4
1.3
0.0
2.6
3.8
0.6
1.3
-
-
-
-
-5
Max
4.5
5.4
1.0
1.7
Speed Grade
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Min
8.4
8.4
3.6
3.6
1.5
1.7
1.7
2.1
1.6
1.5
0.0
3.1
5.5
0.7
1.6
-
-
-
-
DS060 (v1.8) June 26, 2008
-4
Product Specification
Max
5.3
6.3
1.1
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
R