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