W78L801 Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 2
2. FEATURES ................................................................................................................................. 2
3. PIN CONFIGURATIONS ............................................................................................................ 3
4. PIN DESCRIPTION..................................................................................................................... 5
5. BLOCK DIAGRAM ...................................................................................................................... 6
6. FUNCTIONAL DESCRIPTION ................................................................................................... 7
6.1 Interrupt System ................................................................................................................ 8
7. ELECTRICAL CHARACTERISTICS......................................................................................... 14
7.1 Absolute Maximum Ratings............................................................................................. 14
7.2 DC Characteristics........................................................................................................... 14
7.3 AC Characteristics ........................................................................................................... 16
8. TIMING WAVEFORMS ............................................................................................................. 19
8.1 Program Fetch Cycle ....................................................................................................... 19
8.2 Data Read Cycle.............................................................................................................. 19
8.3 Data Write Cycle.............................................................................................................. 20
8.4 Port Access Cycle............................................................................................................ 20
9. PACKAGE DIMENSIONS ......................................................................................................... 21
9.1 40-pin DIP........................................................................................................................ 21
9.2 44-pin PLCC .................................................................................................................... 21
9.3 44-pin PQFP .................................................................................................................... 22
9.4 48-pin LQFP .................................................................................................................... 22
10. TYPICAL APPLICATION CIRCUIT........................................................................................... 23
10.1 Keyboard ..................................................................................................................... 23
11. REVISION HISTORY ................................................................................................................ 24
Publication Release Date: June 04, 2006
-1-
Revision A10