W78E54B/W78E054B 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 ................................................................................................... 7
6.1
6.2
Timers 0, 1, and 2........................................................................................................... 7
New Defined Peripheral.................................................................................................. 7
6.2.1
6.2.2
6.2.3
INT2
/
INT3
...................................................................................................................7
PORT4 .............................................................................................................................8
Reduce EMI Emission ......................................................................................................8
6.3
6.4
6.5
6.6
6.7
7.
7.1
7.2
7.3
7.4
7.5
7.6
7.7
8.
8.1
8.2
8.3
9.
9.1
9.2
9.3
Power-off Flag ................................................................................................................ 9
Watchdog Timer ............................................................................................................. 9
Clock ............................................................................................................................. 11
Power Management...................................................................................................... 11
Reset............................................................................................................................. 11
Read Operation ............................................................................................................ 11
Output Disable Condition.............................................................................................. 11
Program Operation ....................................................................................................... 11
Program Verify Operation ............................................................................................. 12
Erase Operation............................................................................................................ 12
Erase Verify Operation ................................................................................................. 12
Program/Erase Inhibit Operation .................................................................................. 12
Lock Bit ......................................................................................................................... 13
MOVC Inhibit................................................................................................................. 13
Encryption ..................................................................................................................... 13
Absolute Maximum Ratings .......................................................................................... 14
D.C. Characteristics...................................................................................................... 14
A.C. Characteristics ...................................................................................................... 16
Publication Release Date: August 14, 2006
Revision A6
ON-CHIP FLASH EPROM CHARACTERISTICS..................................................................... 11
SECURITY BITS ....................................................................................................................... 13
ELECTRICAL CHARACTERISTICS......................................................................................... 14
-1-
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