Answers Database XC3000: I/O Slew Rates and other AC parameters (rise/fall times) Record #1472 Product Family: Hardware Product Line: 3000A Product Part: 3000A Problem Title: XC3000: I/O Slew Rates and other AC parameters (rise/fall times) Problem Description: 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 - Last Modified: 12/08/97 01:26

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