7702 datasheet(12/217 Pages) RENESAS

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Table of Contents

7702/7703 Group User’s Manual

18.4 Electrical characteristics ................................................................................................. 18-8

18.4.1 Absolute maximum ratings ....................................................................................... 18-8

18.4.2 Recommended operating conditions ....................................................................... 18-9

18.4.3 Electrical characteristics ......................................................................................... 18-10

18.4.4 A-D converter characteristics ................................................................................. 18-11

18.4.5 Internal peripheral devices ..................................................................................... 18-12

18.4.6 Ready and Hold ....................................................................................................... 18-18

18.4.7 Single-chip mode ..................................................................................................... 18-21

18.4.8 Memory expansion mode and microprocessor mode : with no Wait ............... 18-23

18.4.9 Memory expansion mode and microprocessor mode : with Wait ..................... 18-27

18.4.10 Testing circuit for ports P0 to P8,

φ 1, and E ................................................... 18-31

18.5 Standard characteristics ............................................................................................... 18-32

18.5.1 Port standard characteristics .................................................................................. 18-32

18.5.2 ICC–f(XIN) standard characteristics .......................................................................... 18-33

18.5.3 A–D converter standard characteristics ................................................................ 18-34

18.6 Application ....................................................................................................................... 18-35

18.6.1 Memory expansion ................................................................................................... 18-35

18.6.2 Memory expansion example on minimum model ................................................ 18-37

18.6.3 Memory expansion example on medium model A .............................................. 18-39

18.6.4 Memory expansion example on maximum model ............................................... 18-41

18.6.5 Ready generating circuit example ......................................................................... 18-43

CHAPTER 19. PROM VERSION

19.1 Overview ............................................................................................................................. 19-2

19.2 EPROM mode ..................................................................................................................... 19-4

19.2.1 Write method .............................................................................................................. 19-4

19.2.2 Pin description ........................................................................................................... 19-5

19.3 1M mode ............................................................................................................................. 19-6

19.3.1 Read/Program/Erase ................................................................................................. 19-9

19.3.2 Programming algorithm of 1M mode ..................................................................... 19-10

19.3.3 Electrical characteristics of programming algorithm in 1M mode ..................... 19-11

19.4 256K mode ........................................................................................................................ 19-12

19.4.1 Read/Program/Erase ............................................................................................... 19-15

19.4.2 Programming algorithm of 256K mode ................................................................. 19-16

19.4.3 Electrical characteristics of programming algorithm in 256K mode ................. 19-17

19.5 Usage precaution ............................................................................................................ 19-18

19.5.1 Precautions on all PROM versions ....................................................................... 19-18

19.5.2 Precautions on One time PROM version ............................................................. 19-18

19.5.3 Precautions on EPROM version ............................................................................ 19-18

19.5.4 Bus timing and EPROM mode ............................................................................... 19-19

CHAPTER 20. 7703 GROUP

20.1 Description ......................................................................................................................... 20-2

20.2 Performance overview ..................................................................................................... 20-3

20.3 Pin configuration .............................................................................................................. 20-4

20.4 Functional description ..................................................................................................... 20-5

20.4.1 I/O pin ......................................................................................................................... 20-6

20.4.2 Timer A ....................................................................................................................... 20-7

20.4.3 Timer B ....................................................................................................................... 20-7

20.4.4 Serial I/O .................................................................................................................... 20-8

20.4.5 A-D converter ........................................................................................................... 20-10

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