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IA88C00-PDW48C-R 数据表(PDF) 75 Page - InnovASIC, Inc |
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IA88C00-PDW48C-R 数据表(HTML) 75 Page - InnovASIC, Inc |
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75 / 80 page ![]() IA88C00 Data Sheet Microcontroller As of Production Version -01 Copyright © 2005 ENG21 1 030617-04 www.Innovasic Innovasic.com Innovasic Semiconductor Page 75 of 80 1.888.824.4184 AC Electrical Characteristics (20 MHz) EPROM Read Cycle No. Symbol Parameter Min Max Notes†* 1 TdA(DR) Address Valid to Read Data Required Valid 170 1 NOTES 1. WAIT states add 167 ns to these times. † All times are in nanoseconds and are for 12 MHz input frequency. * Timings are preliminary and subject to change. Wait Timing SCLK /AS /DS /WAIT T1 T2 TWAIT T3 a b c d Tc Tc e F G Figure 73. Wait Timing Description a Skew of T1 SCLK Rise to /AS Fall 10.0 Max b Skew of T1 SCLK Rise to /AS Rise 10.0 Max c Skew of T2 SCLK Rise to Read /DS Fall 20.0 Max d Skew T2 SCLK Fall to Write /DS Fall 20.0 Max e Skew T3 SCLK Fall to /DS Rise 20.0 Max F /WAIT Fall Delay After T2 SCLK Fall to Generate at Least 1 WAIT State 20.0 Max G /WAIT Fall Delay after T2 SCLK Fall to Prevent an Additional WAIT State 15.0 Max NOTES All figures are in nanoseconds. |
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