W78E51C 查看數據表（PDF） - Winbond
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W78E51C Datasheet PDF : 23 Pages
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W78E51C Data Sheet
Table of Contents-
8-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS............................................................................................................. 4
4. PIN DESCRIPTION..................................................................................................................... 5
5. BLOCK DIAGRAM ...................................................................................................................... 6
6. FUNCTIONAL DESCRIPTION.................................................................................................... 7
6.1 New Defined Peripheral.................................................................................................. 7
6.2 Reduce EMI Emission .................................................................................................... 8
6.3 Watchdog Timer ............................................................................................................. 9
6.4 Clock ............................................................................................................................. 10
6.5 Power Management...................................................................................................... 10
6.6 Reset............................................................................................................................. 11
7. SECURITY BITS ....................................................................................................................... 11
7.1 Lock Bit ......................................................................................................................... 11
7.2 MOVC Inhibit................................................................................................................. 12
7.3 Encryption ..................................................................................................................... 12
8. ELECREICAL CHARACTERISTICS......................................................................................... 12
8.1 Absolute Maximum Ratings .......................................................................................... 12
8.2 D.C. Characteristics ...................................................................................................... 12
8.3 A.C. Characteristics ...................................................................................................... 14
8.3.1 Clock Input Waveform ....................................................................................................14
8.3.2 Program Fetch Cycle......................................................................................................14
8.3.3 Data Read Cycle ............................................................................................................15
8.3.4 Data Write Cycle.............................................................................................................15
8.3.5 Port Access Cycle ..........................................................................................................15
8.3.6 Program Operation .........................................................................................................16
9. TIMING WAVEFORMS ............................................................................................................. 17
9.1 Program Fetch Cycle .................................................................................................... 17
9.2 Data Read Cycle........................................................................................................... 17
9.3 Data Write Cycle ........................................................................................................... 18
9.4 Port Access Cycle......................................................................................................... 18
Publication Release Date: April 20, 2005
-1-
Revision A2
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