W78E52C/W78E052C Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION ......................................................................................................... 2
FEATURES ................................................................................................................................. 2
PIN CONFIGURATIONS ............................................................................................................ 3
PIN DESCRIPTION..................................................................................................................... 4
FUNCTIONAL DESCRIPTION ................................................................................................... 5
5.1
5.2
5.3
5.4
5.5
5.6
6.
6.1
6.2
6.3
7.
7.1
7.2
7.3
8.
8.1
8.2
8.3
8.4
9.
9.1
9.2
10.
10.1
10.2
10.3
11.
Timers 0, 1, and 2........................................................................................................... 5
New Defined Peripheral.................................................................................................. 5
Watchdog Timer ............................................................................................................. 7
Clock ............................................................................................................................... 9
Power Management........................................................................................................ 9
Reset............................................................................................................................... 9
Lock Bit ......................................................................................................................... 10
MOVC Inhibit................................................................................................................. 10
Encryption ..................................................................................................................... 10
Absolute Maximum Ratings .......................................................................................... 11
D.C. Characteristics...................................................................................................... 11
A.C. Characteristics ...................................................................................................... 13
Program Fetch Cycle .................................................................................................... 16
Data Read Cycle........................................................................................................... 16
Data Write Cycle........................................................................................................... 17
Port Access Cycle......................................................................................................... 17
Expanded External Program Memory and Crystal ....................................................... 18
Expanded External Data Memory and Oscillator ......................................................... 19
40-pin DIP ..................................................................................................................... 20
44-pin PLCC ................................................................................................................. 20
44-pin PQFP ................................................................................................................. 21
SECURITY BITS ....................................................................................................................... 10
ELECTRICAL CHARACTERISTICS......................................................................................... 11
TIMING WAVEFORMS ............................................................................................................. 16
TYPICAL APPLICATION CIRCUITS ........................................................................................ 18
PACKAGE DIMENSIONS ......................................................................................................... 20
REVISION HISTORY ................................................................................................................ 22
-1-
Publication Release Date: November 6, 2006
Revision A4
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