
W78LE516/W78L516A Data Sheet
8-BIT MICROCONTROLLER
Publication Release Date: November 6, 2006
- 1 -
Revision A7
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES................................................................................................................................. 3
PIN CONFIGURATIONS ............................................................................................................ 4
PIN DESCRIPTION..................................................................................................................... 6
FUNCTIONAL DESCRIPTION ................................................................................................... 7
5.1
RAM................................................................................................................................ 7
5.2
Timers 0, 1, and 2........................................................................................................... 7
5.3
Clock............................................................................................................................... 8
5.4
Crystal Oscillator............................................................................................................. 8
5.5
External Clock................................................................................................................. 8
5.6
Power Management........................................................................................................ 8
5.7
Reduce EMI Emission .................................................................................................... 8
5.8
Reset............................................................................................................................... 9
5.9
Port 4 ............................................................................................................................ 10
5.10
5.11
5.12
5.13
SECURITY................................................................................................................................ 20
6.1
Lock bit.......................................................................................................................... 20
6.2
MOVC Inhibit................................................................................................................. 20
6.3
Encryption..................................................................................................................... 21
6.4
Oscillator Control.......................................................................................................... 21
ELECTRICAL CHARACTERISTICS......................................................................................... 22
7.1
Absolute Maximum Ratings.......................................................................................... 22
7.2
D.C. Characteristics...................................................................................................... 22
7.3
A.C. Characteristics...................................................................................................... 24
TIMING WAVEFORMS............................................................................................................. 26
8.1
Program Fetch Cycle.................................................................................................... 26
8.2
Data Read Cycle........................................................................................................... 26
8.3
Data Write Cycle........................................................................................................... 27
8.4
Port Access Cycle......................................................................................................... 27
INT2
/
INT3
................................................................................................................... 10
Port 4 Base Address Registers .................................................................................... 12
In-System Programming (ISP) Mode............................................................................ 14
In-System Programming Control Register (CHPCON)................................................. 16
6.
7.
8.