W78E516B Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES ................................................................................................................................. 3
PIN CONFIGURATIONS............................................................................................................. 4
PIN DESCRIPTION..................................................................................................................... 5
BLOCK DIAGRAM ...................................................................................................................... 6
FUNCTIONAL DESCRIPTION.................................................................................................... 6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
7.
7.1
7.2
7.3
7.4
8.
8.1
8.2
8.3
9.
9.1
9.2
RAM ................................................................................................................................ 6
Timers 0, 1 and 2 ............................................................................................................ 7
Clock ............................................................................................................................... 7
Crystal Oscillator............................................................................................................. 7
External Clock................................................................................................................. 7
Power Management........................................................................................................ 8
Reduce EMI Emission .................................................................................................... 8
Reset............................................................................................................................... 8
Port 4 .............................................................................................................................. 9
INT2
/
INT3
...................................................................................................................... 9
Port 4 Base Address Registers..................................................................................... 12
In-System Programming (ISP) Mode............................................................................ 13
In-System Programming Control Register (CHPCON)................................................. 15
Lock Bit ......................................................................................................................... 19
MOVC Inhibit................................................................................................................. 19
Encryption ..................................................................................................................... 19
Oscillator Control .......................................................................................................... 20
Absolute Maximum Ratings .......................................................................................... 20
D.C. Characteristics ...................................................................................................... 20
A.C. Characteristics ...................................................................................................... 22
Program Fetch Cycle .................................................................................................... 24
Data Read Cycle........................................................................................................... 24
SECURITY ................................................................................................................................ 19
ELECTRICAL CHARACTERISTICS ......................................................................................... 20
TIMING WAVEFORMS ............................................................................................................. 24
-1-
Publication Release Date: April 20, 2005
Revision A9
WINBOND [ WINBOND ]
