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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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7733 Scheda tecnica(PDF) 419 Page - Renesas Technology Corp |
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7733 Scheda tecnica(HTML) 419 Page - Renesas Technology Corp |
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419 / 940 page  APPLICATIONS 7733 Group User’s Manual 17–12 Fig. 17.1.7 Ready generating circuit example (with wait 1) 17.1 Memory expansion Wait generated by the ready function is inserted only to an area where accessed by signal CS2. M37733MHBXXXFP CS1 A8 to A23 (D0 to D15) A0 to A7 1D 1T 1Q 1 RDY E F32 F32 Address bus Data bus Address latch circuit Address decode circuit CS2 2D 2T 2Q RD F04 F04 F74 g1 g2 g3 1 E CS2 1Q RDY th( 1-RDY) 2Q : Wait generated by the ready function : Software wait tsu(RDY- 1) 1 g1 to g3 Make sure that the sum of propagation delay time is within (when 2 • f(f2) = 25 MHz, 25 ns). 2 ! 10 2 • f(f2) – tsu(RDY– 1) 9 Circuit conditions: f (XIN) ≤ 25 MHz, wait 1 is valid, 1 = 2 , f(XIN) 8 , f(XIN) 16 , f(XIN) 2 f(XCIN) or |
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