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AM29LV642DU12RPAI Fiches technique(PDF) 4 Page - Advanced Micro Devices |
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AM29LV642DU12RPAI Fiches technique(HTML) 4 Page - Advanced Micro Devices |
4 / 53 page Am29LV642D 3 P R E L I M I NARY TABLE OF CONTENTS Distinctive Characteristics . . . . . . . . . . . . . . . . . . 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . 2 Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 8 Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . 9 Table 1. Am29LV642D Device Bus Operations ................................9 VersatileI/O (V IO) Control ...................................................... 9 Requirements for Reading Array Data ..................................... 9 Writing Commands/Command Sequences ............................ 10 Accelerated Program Operation ............................................. 10 Autoselect Functions .............................................................. 10 Standby Mode ........................................................................ 10 Automatic Sleep Mode ........................................................... 10 RESET#: Hardware Reset Pin ............................................... 10 Output Disable Mode .............................................................. 11 Table 2. Sector Address Table for CE# ..........................................11 Table 3. Sector Address Table for CE2# ........................................15 Autoselect Mode ..................................................................... 19 Table 4. Am29LV642D Autoselect Codes, (High Voltage Method) 19 Sector Group Protection and Unprotection ............................. 20 Table 5. Sector Group Protection/Unprotection Address Table .....20 Temporary Sector Group Unprotect ....................................... 21 Figure 1. Temporary Sector Group Unprotect Operation................ 21 Figure 2. In-System Sector Group Protect/Unprotect Algorithms ... 22 Hardware Data Protection ...................................................... 23 Low VCC Write Inhibit ............................................................ 23 Write Pulse “Glitch” Protection ............................................... 23 Logical Inhibit .......................................................................... 23 Power-Up Write Inhibit ............................................................ 23 Common Flash Memory Interface (CFI) . . . . . . . 23 Table 6. CFI Query Identification String .......................................... 23 System Interface String................................................................... 24 Table 8. Device Geometry Definition .............................................. 24 Table 9. Primary Vendor-Specific Extended Query ........................ 25 Command Definitions . . . . . . . . . . . . . . . . . . . . . 25 Reading Array Data ................................................................ 25 Reset Command ..................................................................... 26 Autoselect Command Sequence ............................................ 26 Word Program Command Sequence ..................................... 26 Unlock Bypass Command Sequence ..................................... 26 Figure 3. Program Operation .......................................................... 27 Chip Erase Command Sequence ........................................... 27 Sector Erase Command Sequence ........................................ 28 Erase Suspend/Erase Resume Commands ........................... 28 Figure 4. Erase Operation............................................................... 29 Am29LV642D Command Definitions .............................................. 30 Write Operation Status . . . . . . . . . . . . . . . . . . . . . 31 DQ7: Data# Polling ................................................................. 31 Figure 5. Data# Polling Algorithm .................................................. 31 RY/BY#: Ready/Busy# ............................................................ 32 DQ6: Toggle Bit I .................................................................... 32 Figure 6. Toggle Bit Algorithm........................................................ 32 DQ2: Toggle Bit II ................................................................... 33 Reading Toggle Bits DQ6/DQ2 ............................................... 33 DQ5: Exceeded Timing Limits ................................................ 33 DQ3: Sector Erase Timer ....................................................... 33 Table 11. Write Operation Status ................................................... 34 Absolute Maximum Ratings . . . . . . . . . . . . . . . . 35 Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . 35 Industrial (I) Devices ............................................. 35 Extended (E) Devices ........................................... 35 V CC Supply Voltages ............................................ 35 Figure 7. Maximum Negative Overshoot Waveform ..................... 35 Figure 8. Maximum Positive Overshoot Waveform ....................... 35 DC Characteristics (for Two Am29LV640 devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Figure 9. I CC1 Current vs. Time (Showing Active and Automatic Sleep Currents) ............................................................. 37 Figure 10. Typical I CC1 vs. Frequency ............................................ 37 Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Figure 11. Test Setup.................................................................... 38 Table 12. Test Specifications ......................................................... 38 Figure 12. Input Waveforms and Measurement Levels ................. 38 Key to Switching Waveforms. . . . . . . . . . . . . . . . 38 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 39 Read-Only Operations ........................................................... 39 Figure 13. Read Operation Timings ............................................... 39 Hardware Reset (RESET#) .................................................... 40 Figure 14. Reset Timings ............................................................... 40 Erase and Program Operations .............................................. 41 Figure 15. Program Operation Timings.......................................... 42 Figure 16. Accelerated Program Timing Diagram .......................... 42 Figure 17. Chip/Sector Erase Operation Timings .......................... 43 Figure 18. Data# Polling Timings (During Embedded Algorithms). 44 Figure 19. Toggle Bit Timings (During Embedded Algorithms)...... 45 Figure 20. DQ2 vs. DQ6................................................................. 45 Temporary Sector Unprotect .................................................. 46 Figure 21. Temporary Sector Group Unprotect Timing Diagram ... 46 Figure 22. Sector Group Protect and Unprotect Timing Diagram .. 47 Figure 23. Alternate CE# Controlled Write (Erase/Program) Operation Timings .............................................. 49 Erase And Programming Performance . . . . . . . 50 Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 50 Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 51 LSA064—64-Ball Fortified Ball Grid Array (Fortified BGA) 13 x 11 mm package .............................................................. 51 Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 52 Revision A (August 14, 2001) ................................................. 52 |
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