XC3S4000-4FGG676C Xilinx Inc, XC3S4000-4FGG676C Datasheet - Page 32
![SPARTAN-3A FPGA 4M STD 676-FBGA](/photos/6/73/67300/b-676_sml.jpg)
XC3S4000-4FGG676C
Manufacturer Part Number
XC3S4000-4FGG676C
Description
SPARTAN-3A FPGA 4M STD 676-FBGA
Manufacturer
Xilinx Inc
Series
Spartan™-3r
Datasheet
1.XC3S50-4VQG100C.pdf
(217 pages)
Specifications of XC3S4000-4FGG676C
Number Of Logic Elements/cells
62208
Number Of Labs/clbs
6912
Total Ram Bits
1769472
Number Of I /o
489
Number Of Gates
4000000
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
676-BBGA
Package
676FBGA
Family Name
Spartan®-3
Device Logic Units
62208
Device System Gates
4000000
Maximum Internal Frequency
630 MHz
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
489
Ram Bits
1769472
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XC3S4000-4FGG676C
Manufacturer:
XILINX
Quantity:
80
Company:
Part Number:
XC3S4000-4FGG676C
Manufacturer:
Xilinx Inc
Quantity:
10 000
Part Number:
XC3S4000-4FGG676C
Manufacturer:
XILINX/赛灵思
Quantity:
20 000
Spartan-3 FPGA Family: Functional Description
The
Delay-Locked Loop (DLL), the Digital Frequency Synthe-
sizer (DFS), the Phase Shifter (PS), and the Status Logic.
Each component has its associated signals, as shown in
Figure
32
54
DCM
17.
has
four
CLKFB
PSINCDEC
CLKIN
RST
PSCLK
CLKFB
CLKIN
PSEN
functional
RST
Figure 17: DCM Functional Blocks and Associated Signals
Figure 18: Simplified Functional Diagram of DLL
Delay
1
components:
DLL
Delay
2
Shifter
Status
DCM
Phase
Logic
Detection
Control
Phase
www.xilinx.com
the
DFS
Delay
n-1
Delay-Locked Loop (DLL)
The most basic function of the DLL component is to elimi-
nate clock skew. The main signal path of the DLL consists of
an input stage, followed by a series of discrete delay ele-
ments or taps, which in turn leads to an output stage. This
path together with logic for phase detection and control
forms a system complete with feedback as shown in
Figure
8
CLK90
CLK180
CLK270
CLK2X
CLK2X180
CLKDV
PSDONE
CLK0
CLKFX
CLKFX180
LOCKED
STATUS [7:0]
Delay
18.
n
Distribution
Delay
Clock
DS099-2_08_041103
DS099-2_07_040103
CLK0
CLK90
CLK180
CLK270
CLK2X
CLK2X180
CLKDV
LOCKED
DS099-2 (v2.5) December 4, 2009
Product Specification
R