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W27E512-70
W27E512 64K × 8 ELECTRICALLY ERASABLE EPROM Table of Contents1. GENERAL DESCRIPTION ......................................................................................................... 2 2. FEATURES ................................................................................................................................. 2 3. PIN CONFIGURATIONS............................................................................................................. 2 4. BLOCK DIAGRAM ...................................................................................................................... 2 5. PIN DESCRIPTION..................................................................................................................... 2 6. FUNCTIONAL DESCRIPTION.................................................................................................... 3 7. TABLE OF OPERATING MODES .............................................................................................. 4 8. ELECTRICAL CHARACTERISTICS ........................................................................................... 5 8.1 Absolute Maximum Ratings ............................................................................................ 5 8.2 DC Erase Characteristics ............................................................................................... 5 8.3 Capacitance .................................................................................................................... 6 8.4 AC Characteristics .......................................................................................................... 6 8.4.1 AC Test Conditions...........................................................................................................6 8.4.2 AC Test Load and Waveforms .........................................................................................6 8.5 8.6 Read Operation AC Characteristics ............................................................................... 7 8.7 DC Programming Characteristics ................................................................................... 8 8.8 9. Read Operation DC Characteristics ............................................................................... 7 AC Programming/Erase Characteristics......................................................................... 8 TIMING WAVEFORMS ............................................................................................................... 9 9.1 AC Read Waveform........................................................................................................ 9 9.2 Erase Waveform ............................................................................................................. 9 9.3 Programming Waveform............................................................................................... 10 10. SMART PROGRAMMING ALGORITHM 1 ............................................................................... 11 11. SMART PROGRAMMING ALGORITHM 2 ............................................................................... 12 12. SMART ERASE ALGORITHM .................................................................................................. 13 13. ORDERING INFORMATION..................................................................................................... 14 14. PACKAGE DIMENSIONS ......................................................................................................... 15 14.1 14.2 28-pin Standard Type One TSOP ................................................................................ 15 14.3 15. 28-pin P-DIP ................................................................................................................. 15 32-pin PLCC ................................................................................................................. 16 VERSION HISTORY ................................................................................................................. 17 -1- Publication Release Date: April 14, 2005 Revision A11
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