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