Answers Database
XC3000: I/O Slew Rates and other AC parameters (rise/fall times)
Record #1472
Product Family: Hardware
Product Line: 3000A
Problem Title:
XC3000: I/O Slew Rates and other AC parameters (rise/fall times)
Problem Description:
Keywords: Slew Rate, XC3000, rise, fall time
Urgency: Standard
Description
XC3000 Device I/O slew rate parameters as well as other
XC3000 specific device information can be found in the 1
1996 Xilinx Programmable Logic Data book on pages 14-13
to 14-23.
Solution 1:
FAST* SLOW*
Unloaded Output Slew Rate 2.8 V/ns 0.5 V/ns
Unloaded Transition Time 1.45 ns 7.9 ns
Additional rise time for 812pF 100 ns 100 ns
normailized 50 ns 64 ns
Additional fall time for 812 pF 50 ns 64 ns
normalized 0.06 ns/pF 0.08 ns/pF
*Fast and Slow refer to the output programming option.
End of Record #1472
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