7733 datasheet(410/940 Pages) RENESAS

410 / 940 page

APPLICATIONS

7733 Group User’s Manual

17–3

Table 17.1.1 Memory expansion models

g For functions and operations of pins used in memory expansion, refer to chapter “12. CONNECTING

EXTERNAL DEVICES.”

For timing characteristics, refer to chapter“15. ELECTRICAL CHARACTERISTICS.”

g In memory expansion, the address bus can be expanded up to 24 bits wide. Accordingly, be sure to

strengthen the 7733 Group’s Vss line on the system. (Refer t

o section “Appendix 8.Countermeasure

examples against noise.”)

Accessible area

Memory expansion model

64 Kbytes (Max.)

16 Mbytes (Max.)

External data

bus

BYTE

7733 Group

BYTE

7733 Group

BYTE

7733 Group

8 bits wide

BYTE = “H”

16 bits wide

BYTE = “L”

Minimum model

Medium model A

Maximum model

Memory expansion model

Medium model B

Memory expansion model

A0 to A15

D0 to D7

A0 to A15

Latch

D0 to D15

A0 to A15+n

D0 to D7

16+n

Latch

A0 to A15+n

D0 to D15

16+n

ALE

BHE

7733 Group

ALE

BHE

17.1 Memory expansion

7733 데이터시트(PDF) 410 Page - Renesas Technology Corp

7733 데이터시트(HTML) 410 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL