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W78E54B Datasheet(PDF) 1 Page - Winbond |
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W78E54B Datasheet(HTML) 1 Page - Winbond |
1 / 25 page W78E54B/W78E054B Data Sheet 8-BIT MICROCONTROLLER Publication Release Date: August 14, 2006 - 1 - Revision A6 Table of Contents- 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 Timers 0, 1, and 2........................................................................................................... 7 6.2 New Defined Peripheral.................................................................................................. 7 6.2.1 INT2 / INT3 ...................................................................................................................7 6.2.2 PORT4 .............................................................................................................................8 6.2.3 Reduce EMI Emission ......................................................................................................8 6.3 Power-off Flag ................................................................................................................ 9 6.4 Watchdog Timer ............................................................................................................. 9 6.5 Clock ............................................................................................................................. 11 6.6 Power Management...................................................................................................... 11 6.7 Reset............................................................................................................................. 11 7. ON-CHIP FLASH EPROM CHARACTERISTICS..................................................................... 11 7.1 Read Operation ............................................................................................................ 11 7.2 Output Disable Condition.............................................................................................. 11 7.3 Program Operation ....................................................................................................... 11 7.4 Program Verify Operation ............................................................................................. 12 7.5 Erase Operation............................................................................................................ 12 7.6 Erase Verify Operation ................................................................................................. 12 7.7 Program/Erase Inhibit Operation .................................................................................. 12 8. SECURITY BITS ....................................................................................................................... 13 8.1 Lock Bit ......................................................................................................................... 13 8.2 MOVC Inhibit................................................................................................................. 13 8.3 Encryption ..................................................................................................................... 13 9. ELECTRICAL CHARACTERISTICS......................................................................................... 14 9.1 Absolute Maximum Ratings .......................................................................................... 14 9.2 D.C. Characteristics...................................................................................................... 14 9.3 A.C. Characteristics ...................................................................................................... 16 |
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