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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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H8S/2214 Scheda tecnica(PDF) 654 Page - Renesas Technology Corp |
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H8S/2214 Scheda tecnica(HTML) 654 Page - Renesas Technology Corp |
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654 / 936 page  Section 15 ROM Rev.4.00 Sep. 18, 2008 Page 594 of 872 REJ09B0189-0400 15.13.6 Status Read Mode 1. Status read mode is provided to identify the kind of abnormal end. Use this mode when an abnormal end occurs in auto-program mode or auto-erase mode. 2. The return code is retained until a command write other than a status read mode command write is executed. Table 15.20 AC Characteristics in Status Read Mode Conditions: V CC = 3.3 V ±0.3 V, VSS = 0 V, Ta = 25°C ±5°C Item Symbol Min. Max. Unit Notes Read time after command write t nxtc 20 µs CE hold time t ceh 0 ns CE setup time t ces 0 ns Data hold time t dh 50 ns Data setup time t ds 50 ns Write pulse width t wep 70 ns OE output delay time t oe 150 ns Disable delay time t df 100 ns CE output delay time t ce 150 ns WE rise time t r 30 ns WE fall time t f 30 ns CE A18 to A0 OE WE I/O7 to I/O0 twep tf tr toe tdf tds tds tdh tdh tces tceh tce tceh tnxtc tnxtc tnxtc tces H'71 twep tf tr H'71 Note: I/O2 and I/O3 are undefined. Figure 15.27 Status Read Mode Timing Waveforms |
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