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Winbond - 8-BIT MICROCONTROLLER

Numéro de référence W78E51C
Description 8-BIT MICROCONTROLLER
Fabricant Winbond 
Logo Winbond 





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W78E51C fiche technique
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W78E51C/W78E051C Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 2
2. FEATURES ................................................................................................................................. 2
3. PIN CONFIGURATIONS ............................................................................................................ 3
4. PIN DESCRIPTION..................................................................................................................... 4
5. FUNCTIONAL DESCRIPTION ................................................................................................... 5
5.1 New Defined Peripheral.................................................................................................. 5
5.2 Reduce EMI Emission .................................................................................................... 6
5.3 Watchdog Timer ............................................................................................................. 7
5.4 Clock ............................................................................................................................... 8
5.5 Power Management........................................................................................................ 9
5.6 Reset............................................................................................................................... 9
6. SECURITY BITS ....................................................................................................................... 10
6.1 Lock Bit ......................................................................................................................... 10
6.2 MOVC Inhibit................................................................................................................. 11
6.3 Encryption ..................................................................................................................... 11
7. ELECREICAL CHARACTERISTICS......................................................................................... 12
7.1 Absolute Maximum Ratings .......................................................................................... 12
7.2 D.C. Characteristics...................................................................................................... 12
7.3 A.C. Characteristics ...................................................................................................... 14
7.3.1 Clock Input Waveform ....................................................................................................14
7.3.2 Program Fetch Cycle......................................................................................................14
7.3.3 Data Read Cycle ............................................................................................................15
7.3.4 Data Write Cycle.............................................................................................................15
7.3.5 Port Access Cycle ..........................................................................................................15
7.3.6 Program Operation .........................................................................................................16
8. TIMING WAVEFORMS ............................................................................................................. 17
8.1 Program Fetch Cycle .................................................................................................... 17
8.2 Data Read Cycle........................................................................................................... 17
8.3 Data Write Cycle ........................................................................................................... 18
8.4 Port Access Cycle......................................................................................................... 18
9. TYPICAL APPLICATION CIRCUITS ........................................................................................ 19
9.1 Expanded External Program Memory and Crystal ....................................................... 19
9.2 Expanded External Data Memory and Oscillator ......................................................... 20
10. PACKAGE DIMENSIONS ......................................................................................................... 21
10.1 40-pin DIP ..................................................................................................................... 21
10.2 44-pin PLCC ................................................................................................................. 21
10.3 44-pin PQFP ................................................................................................................. 22
11. REVISION HISTORY ................................................................................................................ 23
Publication Release Date: November 10, 2006
- 1 - Revision A4

PagesPages 23
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