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 INT2 / INT3 ...................................................................................................................7
6.2.2 PORT4 .............................................................................................................................8
6.2.3 Reduce EMI Emission ......................................................................................................8
Power-off Flag ................................................................................................................ 9
Watchdog Timer ............................................................................................................. 9
Clock............................................................................................................................. 11
Power Management...................................................................................................... 11
Reset............................................................................................................................. 11
6.3
6.4
6.5
6.6
6.7
7.
ON-CHIP FLASH EPROM CHARACTERISTICS..................................................................... 11
7.1
7.2
7.3
7.4
7.5
7.6
7.7
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
8.
9.
SECURITY BITS....................................................................................................................... 13
8.1
8.2
8.3
Lock Bit ......................................................................................................................... 13
MOVC Inhibit................................................................................................................. 13
Encryption..................................................................................................................... 13
ELECTRICAL CHARACTERISTICS......................................................................................... 14
9.1
9.2
9.3
Absolute Maximum Ratings.......................................................................................... 14
D.C. Characteristics...................................................................................................... 14
A.C. Characteristics...................................................................................................... 16
Publication Release Date: August 14, 2006
- 1 -
Revision A6
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