xc3s1400an Xilinx Corp., xc3s1400an Datasheet - Page 44

• Manufacturer Part Number: xc3s1400an
• Description: Spartan-3an Fpga Family Data Sheet
• Manufacturer: Xilinx Corp.

DC and Switching Characteristics
Clock Buffer/Multiplexer Switching Characteristics
Table 34: Clock Distribution Switching Characteristics
44
Global clock buffer (BUFG, BUFGMUX, BUFGCE) I input to
O-output delay
Global clock multiplexer (BUFGMUX) select S-input setup to I0 and
I1 inputs. Same as BUFGCE enable CE-input
Frequency of signals distributed on global buffers (all sides)
Description
www.xilinx.com
Symbol
F
T
T
BUFG
GIO
GSI
Minimum
–
–
0
0.22
0.56
350
-5
Speed Grade
Maximum
DS557-3 (v3.1) June 2, 2008
Product Specification
0.23
0.63
334
-4
Units
MHz
ns
ns
R