XCS40XL-4PQ208C Xilinx Inc, XCS40XL-4PQ208C Datasheet - Page 30

• Manufacturer Part Number: XCS40XL-4PQ208C
• Description: IC FPGA 3.3V C-TEMP 208-PQFP
• Manufacturer: Xilinx Inc
• Series: Spartan™-XLr

Specifications of XCS40XL-4PQ208C

• Number Of Logic Elements/cells: 1862
• Number Of Labs/clbs: 784
• Total Ram Bits: 25088
• Number Of I /o: 169
• Number Of Gates: 40000
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 208-BFQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Spartan and Spartan-XL FPGA Families Data Sheet
to the DONE pin. User I/Os for each device become active
after the DONE pin for that device goes High. (The exact
timing is determined by development system options.)
Since the DONE pin is open-drain and does not drive a High
value, tying the DONE pins of all devices together prevents
all devices in the chain from going High until the last device
30
DATA BUS
PROGRAM
CCLK
INIT
8
3.3K
VCC
V CC
CS1
D0-D7
PROGRAM
INIT
CCLK
M0
Spartan-XL
Figure 27: Express Mode Circuit Diagram
DOUT
DONE
M1
www.xilinx.com
8
in the chain has completed its configuration cycle. If the
DONE pin of a device is left unconnected, the device
becomes active as soon as that device has been config-
ured. Only devices supporting Express mode can be used
to form an Express mode daisy chain.
8
PROGRAM
CS1
D0-D7
INIT
Daisy-Chained
CCLK
M0
Spartan-XL
Optional
DONE
DOUT
M1
DS060 (v1.8) June 26, 2008
Product Specification
To Additional
Optional
Daisy-Chained
Devices
To Additional
Optional
Daisy-Chained
Devices
DS060_27_080400
R