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X9420WS Datasheet(PDF) 12 Page - Xicor Inc. |
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X9420WS Datasheet(HTML) 12 Page - Xicor Inc. |
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12 / 20 page ![]() X9420 Characteristics subject to change without notice. 12 of 20 REV 1.1.6 7/30/02 www.xicor.com AC TIMING Symbol Parameter Min. Max. Units fSCK SSI/SPI Clock Frequency 2.0 MHz tCYC SSI/SPI Clock Cycle Time 500 ns tWH SSI/SPI Clock High Time 200 ns tWL SSI/SPI Clock Low Time 200 ns tLEAD Lead Time 250 ns tLAG Lag Time 250 ns tSU SI, SCK, HOLD and CS Input Setup Time 50 ns tH SI, SCK, HOLD and CS Input Hold Time 50 ns tRI SI, SCK, HOLD and CS Input Rise Time 2 µs tFI SI, SCK, HOLD and CS Input Fall Time 2 µs tDIS SO Output Disable Time 0 500 ns tV SO Output Valid Time 100 ns tHO SO Output Hold Time 0 ns tRO SO Output Rise Time 50 ns tFO SO Output Fall Time 50 ns tHOLD HOLD Time 400 ns tHSU HOLD Setup Time 100 ns tHH HOLD Hold Time 100 ns tHZ HOLD Low to Output in High Z 100 ns tLZ HOLD High to Output in Low Z 100 ns TI Noise Suppression Time Constant at SI, SCK, HOLD and CS inputs 20 ns tCS CS Deselect Time 2 µs tWPASU WP, A0 and A1 Setup Time 0 ns tWPAH WP, A0 and A1 Hold Time 0 ns A.C. TEST CONDITIONS EQUIVALENT A.C. LOAD CIRCUIT Input pulse levels VCC x 0.1 to VCC x 0.9 Input rise and fall times 10ns Input and output timing level VCC x 0.5 5V 1533 Ω 100pF SDA Output |
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