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