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7733 Datasheet(PDF) 426 Page - Renesas Technology Corp |
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7733 Datasheet(HTML) 426 Page - Renesas Technology Corp |
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426 / 940 page ![]() APPLICATIONS 7733 Group User’s Manual 17–19 17.1.4 Memory expansion example (1) ROM expansion example on minimum model Figure 17.1.3 shows a ROM expansion example on the minimum model (with a 32-Kbyte ROM, memory expansion mode). Figure 17.1.4 shows the corresponding timing diagram. 17.1 Memory expansion Fig. 17.1.13 ROM expansion example on minimum model Circuit conditions: Wait 1 is valid, A0 to A14 D0 to D7 AC00 25 MHz XIN XOUT M37733S4BFP BYTE R/W E BHE A0 to A14 D0 to D7 OE CE M5M27C256AK-10 A15 g Open 1 = 2 , f(XIN) 8 , f(XIN) 16 , f(XIN) 2 f(XCIN) g Make sure that the propagation delay time is 10 ns or less. 000016 008016 088016 800016 External ROM area (M5M27C256AK) SFR area Internal RAM area Not used Memory map FFFF16 or |
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