參數(shù)資料
型號： AM29LV641MH25EI
廠商： Advanced Micro Devices, Inc.
元件分類： FLASH
英文描述： 64 Megabit (4 M x 16-Bit) MirrorBita?? 3.0 Volt-only Uniform Sector Flash Memory with VersatileI/Oa?? Control
中文描述： 64Mb(4個M x 16位)的MirrorBit，3V，統(tǒng)一扇區(qū)閃存并有Versatile輸入/輸出控制
文件頁數(shù)： 6/60頁
文件大小： 640K
代理商： AM29LV641MH25EI
4
Am29LV641MH/L
December 21, 2005
D A T A S H E E T
TABLE OF CONTENTS
Continuity of Specifications .......................................................i
For More Information .................................................................i
Product Selector Guide. . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 6
Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . 8
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 9
Table 1. Device Bus Operations .......................................................9
VersatileIO
(V
IO
) Control .......................................................9
Requirements for Reading Array Data .....................................9
Page Mode Read ....................................................................10
Writing Commands/Command Sequences ............................10
Write Buffer .............................................................................10
Accelerated Program Operation .............................................10
Autoselect Functions ..............................................................10
Standby Mode........................................................................ 10
Automatic Sleep Mode ...........................................................10
RESET#: Hardware Reset Pin ...............................................11
Output Disable Mode ..............................................................11
Table 2. Sector Address Table ........................................................12
Autoselect Mode..................................................................... 14
Table 3. Autoselect Codes, (High Voltage Method) .......................14
Sector Group Protection and Unprotection .............................15
Table 4. Sector Group Protection/Unprotection AddressTable .....15
Write Protect (WP#) ................................................................16
Temporary Sector Group Unprotect .......................................16
Figure 1. Temporary Sector Group UnprotectOperation................ 16
Figure 2. In-System Sector Group Protect/UnprotectAlgorithms... 17
SecSi (Secured Silicon) Sector Flash MemoryRegion ..........18
Table 5. SecSi Sector Contents ......................................................18
Figure 3. SecSi Sector Protect Verify.............................................. 19
Hardware Data Protection ......................................................19
Low VCC Write Inhibit ............................................................19
Write Pulse “Glitch” Protection ...............................................19
Logical Inhibit ..........................................................................19
Power-Up Write Inhibit ............................................................19
Common Flash Memory Interface (CFI). . . . . . . 19
Table 6. CFI Query Identification String.............................. 20
Table 7. System Interface String......................................................20
Table 8. Device Geometry Definition................................... 21
Table 9. Primary Vendor-Specific Extended Query............. 22
Command Definitions . . . . . . . . . . . . . . . . . . . . . 22
Reading Array Data ................................................................22
Reset Command .....................................................................23
Autoselect Command Sequence ............................................23
Enter SecSi Sector/Exit SecSi Sector CommandSequence ..23
Word Program Command Sequence .....................................23
Unlock Bypass Command Sequence .....................................24
Write Buffer Programming ......................................................24
Accelerated Program ..............................................................25
Figure 4. Write Buffer Programming Operation............................... 26
Figure 5. Program Operation.......................................................... 27
Program Suspend/Program Resume Command Sequence ...27
Figure 6. Program Suspend/Program Resume............................... 28
Chip Erase Command Sequence ...........................................28
Sector Erase Command Sequence ........................................28
Erase Suspend/Erase Resume Commands ...........................29
Figure 7. Erase Operation.............................................................. 30
Command Definitions............................................................. 31
Table 10. Command Definitions......................................................31
Write Operation Status. . . . . . . . . . . . . . . . . . . . . 32
DQ7: Data# Polling .................................................................32
Figure 8. Data# Polling Algorithm.................................................. 32
DQ6: Toggle Bit I ....................................................................33
Figure 9. Toggle Bit Algorithm........................................................ 33
DQ2: Toggle Bit II ...................................................................34
Reading Toggle Bits DQ6/DQ2 ...............................................34
DQ5: Exceeded Timing Limits ................................................34
DQ3: Sector Erase Timer .......................................................34
DQ1: Write-to-Buffer Abort .....................................................35
Table 11. Write Operation Status ...................................................35
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 36
Figure 10. Maximum Negative OvershootWaveform................... 36
Figure 11. Maximum Positive OvershootWaveform..................... 36
Operating Ranges. . . . . . . . . . . . . . . . . . . . . . . . . 36
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 37
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 12. Test Setup.................................................................... 38
Table 12. Test Specifications .........................................................38
Key to Switching Waveforms. . . . . . . . . . . . . . . . 38
Figure 13. Input Waveforms and
Measurement Levels...................................................................... 38
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 39
Read-Only Operations ...........................................................39
Figure 14. Read Operation Timings............................................... 39
Figure 15. Page Read Timings...................................................... 40
Hardware Reset (RESET#) ....................................................41
Figure 16. Read Operation Timings............................................... 41
Figure 17. Reset Timings............................................................... 42
Erase and Program Operations ..............................................43
Figure 18. Program Operation Timings.......................................... 44
Figure 19. Accelerated Program Timing Diagram.......................... 44
Figure 20. Chip/Sector Erase Operation Timings.......................... 45
Figure 21. Data# Polling Timings
(During Embedded Algorithms)...................................................... 46
Figure 22. Toggle Bit Timings
(During Embedded Algorithms)...................................................... 47
Figure 23. DQ2 vs. DQ6................................................................. 47
Temporary Sector Unprotect ..................................................48
Figure 24. Temporary Sector Group Unprotect TimingDiagram... 48
Figure 25. Sector Group Protect and Unprotect TimingDiagram.. 49
Alternate CE# Controlled Erase and ProgramOperations .....50
Figure 26. Alternate CE# Controlled Write (Erase/Program)
OperationTimings.......................................................................... 51
Erase And Programming Performance. . . . . . . . 52
Latchup Characteristics. . . . . . . . . . . . . . . . . . . . 52
TSOP Pin Capacitance . . . . . . . . . . . . . . . . . . . . . 53
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 54
TS 048—48-Pin Standard Thin Small Outline Package .........54
TSR048—48-Pin Reverse Thin Small Outline Package .........55
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 56
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