
Table of Contents
vi
7751 Group User’s Manual
CHAPTER 15. ELECTRICAL CHARACTERISTICS
15.1 Absolute maximum ratings............................................................................................. 15-2
15.2 Recommended operating conditions ............................................................................ 15-3
15.3 Electrical characteristics ................................................................................................. 15-4
15.4 A-D converter characteristics ........................................................................................ 15-5
15.5 Internal peripheral devices ............................................................................................. 15-6
15.6 Ready and Hold............................................................................................................... 15-13
15.7 Single-chip mode ............................................................................................................ 15-16
15.8 Memory expansion mode and microprocessor mode : When 2-
φ
access in
low-speed running ......................................................................................................... 15-18
15.9 Memory expansion mode and microprocessor mode : When 3-
φ
access in
low-speed running ......................................................................................................... 15-23
15.10 Memory expansion mode and microprocessor mode : When 4-
φ
access in
low-speed running ....................................................................................................... 15-28
15.11 Memory expansion mode and microprocessor mode : When 3-
φ
access in
high-speed running...................................................................................................... 15-33
15.12 Memory expansion mode and microprocessor mode : When 4-
φ
access in
high-speed running...................................................................................................... 15-38
15.13 Memory expansion mode and microprocessor mode : When 5-
φ
access in
high-speed running...................................................................................................... 15-43
15.14 Memory expansion mode and microprocessor mode : When 2-
φ
access in
high-speed running (Internal RAM access)............................................................15-48
15.15 Testing circuit for ports P0 to P8,
φ
1
, and E.........................................................15-51
CHAPTER 16. STANDARD CHARACTERISTICS
16.1 Standard characteristics ................................................................................................. 16-2
16.1.1 Programmable I/O port (CMOS output) standard characteristics........................16-2
16.1.2 Icc–f(X
IN
) standard characteristics .......................................................................... 16-3
16.1.3 A-D converter standard characteristics................................................................... 16-4
CHAPTER 17. APPLICATIONS
17.1 Memory expansion............................................................................................................ 17-2
17.1.1 Memory expansion model......................................................................................... 17-2
17.1.2 How to calculate timing ............................................................................................ 17-4
17.1.3 Points in memory expansion.................................................................................... 17-8
17.1.4 Example of memory expansion.............................................................................. 17-26
17.1.5 Example of I/O expansion ...................................................................................... 17-37