Preliminary W78LE365
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 2
FEATURES................................................................................................................................. 2
PIN CONFIGURATIONS ............................................................................................................ 3
PIN DESCRIPTION..................................................................................................................... 4
BLOCK DIAGRAM ...................................................................................................................... 5
FUNCTIONAL DESCRIPTION ................................................................................................... 5
6.1 RAM .................................................................................................................................................5
6.2 Timers 0, 1, and 2 ............................................................................................................................6
6.3 Clock ................................................................................................................................................7
6.4 Power Management .........................................................................................................................7
6.5 Reset................................................................................................................................................8
6.6 Port 4...............................................................................................................................................9
6.7 Pulse Width Modulated Outputs (PWM).........................................................................................13
6.8 Watchdog Timer.............................................................................................................................16
6.9 In-System Programming (ISP) Mode..............................................................................................18
6.10 Software Reset...............................................................................................................................19
6.11 H/W Reboot Mode (Boot From LDROM)........................................................................................20
6.12 Security ..........................................................................................................................................23
7.
8.
ELECTRICAL CHARACTERISTICS......................................................................................... 24
7.1 Absolute Maximum Ratings............................................................................................................24
7.2 DC Characteristics .........................................................................................................................24
7.3 AC Characteristics..........................................................................................................................26
TIMING WAVEFORMS............................................................................................................. 27
8.1 Program Fetch Cycle......................................................................................................................27
8.2 Data Read Cycle ............................................................................................................................28
8.3 Data Write Cycle ............................................................................................................................29
8.4 Port Access Cycle ..........................................................................................................................30
9.
TYPICAL APPLICATION CIRCUIT........................................................................................... 31
9.1 Expanded External Program Memory and Crystal..........................................................................31
9.2 Expanded External Data Memory and Oscillator............................................................................32
10.
PACKAGE DIMENSIONS......................................................................................................... 32
10.1 40-pin DIP ......................................................................................................................................32
10.2 44-pin PLCC...................................................................................................................................33
10.3 44-pin PQFP...................................................................................................................................33
11.
12.
APPLICATION NOTE ............................................................................................................... 34
11.1 In-system Programming Software Examples..................................................................................34
REVISION HISTORY................................................................................................................ 39
Publication Release Date: May 14, 2003
- 1 -
Revision A1
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