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7733 Datasheet(PDF) 428 Page - Renesas Technology Corp |
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7733 Datasheet(HTML) 428 Page - Renesas Technology Corp |
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428 / 940 page  APPLICATIONS 7733 Group User’s Manual 17–21 (2) ROM expansion example on maximum model Figure 17.1.5 shows a ROM expansion example on the maximum model (with a 2-Mbit ROM, micro- processor mode). Figure 17.1.6 shows the corresponding timing diagram. 17.1 Memory expansion Fig. 17.1.15 ROM expansion example on maximum model M5M27C202K-10 A0 to A16 OE A1 to A7 AC04 25 MHz XIN XOUT M37733S4BFP BYTE Data bus A1 to A17 Address bus A16/D0, A17/D1 ALE D1 to D7 E R/W A8/D8 to A15/D15 AC573 CE D0 to D15 D0 to D15 A8 to A15 000016 008016 SFR area Internal RAM area External ROM area (M5M27C202K) Memory map Q LE D CNVss g1, g2 Make sure that the propagation delay time is 10 ns or less. g2 g1 AC573 Q LE D A16, A17 3FFFF16 088016 Circuit conditions: Wait 1 is valid, 1 = 2 , f(XIN) 8 , f(XIN) 16 , f(XIN) 2 f(XCIN) or |
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