XC3SD1800A-4CS484I Xilinx Inc, XC3SD1800A-4CS484I Datasheet - Page 42

• Manufacturer Part Number: XC3SD1800A-4CS484I
• Description: FPGA Spartan®-3A Family 1.8M Gates 37440 Cells 667MHz 90nm Technology 1.2V 484-Pin LCSBGA
• Manufacturer: Xilinx Inc

Specifications of XC3SD1800A-4CS484I

• Package: 484LCSBGA
• Family Name: Spartan®-3A
• Device Logic Units: 37440
• Device System Gates: 1800000
• Maximum Internal Frequency: 667 MHz
• Typical Operating Supply Voltage: 1.2 V
• Maximum Number Of User I/os: 309
• Ram Bits: 1548288

DSP48A Timing
To reference the DSP48A block diagram, see UG431: XtremeDSP DSP48A for Spartan-3A DSP FPGA User Guide.
Table 34: Setup Times for the DSP48A
DS610 (v3.0) October 4, 2010
Product Specification
Notes:
1.
2.
Setup Times of Data/Control Pins to the Input Register Clock
T
T
T
T
T
T
Setup Times of Data Pins to the Pipeline Register Clock
T
T
T
T
Setup Times of Data/Control Pins to the Output Register Clock
T
T
T
T
T
DSPDCK_AA
DSPDCK_DB
DSPDCK_CC
DSPDCK_DD
DSPDCK_OPB
DSPDCK_OPOP
DSPDCK_AM
DSPDCK_BM
DSPDCK_DM
DSPDCK_OPM
DSPDCK_AP
DSPDCK_BP
DSPDCK_DP
DSPDCK_CP
DSPDCK_OPP
Symbol
"Yes" means that the component is in the path. "No" means that the component is being bypassed. “–“ means that no path exists, so it is not
applicable.
The numbers in this table are based on the operating conditions set forth in
A input to A register CLK
D input to B register CLK
C input to C register CLK
D input to D register CLK
OPMODE input to B register CLK
OPMODE input to OPMODE register CLK
A input to M register CLK
B input to M register CLK
D input to M register CLK
OPMODE to M register CLK
A input to P register CLK
B input to P register CLK
D input to P register CLK
C input to P register CLK
OPMODE input to P register CLK
Description
Spartan-3A DSP FPGA Family: DC and Switching Characteristics
www.xilinx.com
Pre-adder
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
–
–
–
–
–
–
–
Table
Multiplier
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
–
–
–
–
7.
Post-adder
Yes
Yes
Yes
Yes
Yes
Yes
–
–
–
–
–
–
–
–
–
–
–
0.04
1.64
0.05
0.04
0.37
0.06
3.30
4.33
3.30
4.41
4.72
4.78
5.87
4.77
5.95
1.90
6.25
Min
-5
Speed Grade
0.04
1.88
0.05
0.04
0.42
0.06
3.79
4.97
3.79
5.06
5.42
5.49
6.74
5.48
6.83
2.18
7.18
Min
-4
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
42