參數(shù)資料
型號(hào)： AM29LV081B-90EK
廠商： Advanced Micro Devices, Inc.
英文描述： 8 Megabit (1 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory
中文描述： 8兆位（1米× 8位）的CMOS 3.0伏特，只有統(tǒng)一部門閃存
文件頁數(shù)： 5/40頁
文件大小： 438K
代理商： AM29LV081B-90EK
21525D6
October 12, 2006
Am29LV081B
3
D AT A S H E E T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .5
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 6
Standard Products ....................................................................6
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . 7
Table 1. Am29LV081B Device Bus Operations ................................7
Requirements for Reading Array Data .....................................7
Writing Commands/Command Sequences ..............................7
Program and Erase Operation Status ......................................8
Standby Mode ..........................................................................8
Automatic Sleep Mode .............................................................8
RESET#: Hardware Reset Pin .................................................8
Output Disable Mode ................................................................8
Table 2. Am29LV081B Sector Address Table ..................................9
Autoselect Mode .......................................................................9
Table 3. Am29LV081B Autoselect Codes (High Voltage Method) ....9
Sector Protection/Unprotection ...............................................10
Temporary Sector Unprotect ..................................................10
Hardware Data Protection ......................................................10
Figure 1. Temporary Sector Unprotect Operation........................... 10
Figure 2. In-System Sector Protect/Unprotect Algorithms.............. 11
Command Definitions . . . . . . . . . . . . . . . . . . . . . . 12
Reading Array Data ................................................................12
Reset Command .....................................................................12
Autoselect Command Sequence ............................................12
Byte Program Command Sequence .......................................12
Chip Erase Command Sequence ...........................................13
Figure 3. Program Operation.......................................................... 13
Sector Erase Command Sequence ........................................13
Erase Suspend/Erase Resume Commands ...........................14
Figure 4. Erase Operation............................................................... 15
Command Definitions .............................................................16
Table 4. Am29LV081B Command Definitions .................................16
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 17
DQ7: Data# Polling .................................................................17
Figure 5. Data# Polling Algorithm................................................... 17
RY/BY#: Ready/Busy# ............................................................18
DQ6: Toggle Bit I ....................................................................18
DQ2: Toggle Bit II ...................................................................18
Reading Toggle Bits DQ6/DQ2 ...............................................18
Figure 6. Toggle Bit Algorithm......................................................... 19
DQ5: Exceeded Timing Limits ................................................19
DQ3: Sector Erase Timer .......................................................19
Table 5. Write Operation Status .....................................................20
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 21
Figure 7. Maximum Negative Overshoot Waveform....................... 21
Figure 8. Maximum Positive Overshoot Waveform......................... 21
Operating Ranges. . . . . . . . . . . . . . . . . . . . . . . . . 21
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 9. I
CC1
Current vs. Time (Showing Active
and Automatic Sleep Currents)....................................................... 23
Figure 10. Typical I
CC1
vs. Frequency............................................ 23
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 11. Test Setup...................................................................... 24
Table 6. Test Specifications ...........................................................24
Figure 12. Input Waveforms and Measurement Levels.................. 24
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 25
Read Operations ....................................................................25
Figure 13. Read Operations Timings.............................................. 25
Hardware Reset (RESET#) ....................................................26
Figure 14. RESET# Timings........................................................... 26
Erase/Program Operations .....................................................27
Figure 15. Program Operation Timings........................................... 28
Figure 16. Chip/Sector Erase Operation Timings........................... 29
Figure 17. Data# Polling Timings (During Embedded Algorithms).. 30
Figure 18. Toggle Bit Timings (During Embedded Algorithms)....... 30
Figure 19. DQ2 vs. DQ6.................................................................. 31
Figure 20. Temporary Sector Unprotect Timing Diagram............... 31
Figure 21. Sector Protect/Unprotect Timing Diagram..................... 32
Figure 22. Alternate CE# Controlled Write Operation Timings....... 34
Erase and Programming Performance . . . . . . . 35
Latchup Characteristics. . . . . . . . . . . . . . . . . . . . 35
TSOP Pin Capacitance . . . . . . . . . . . . . . . . . . . . . 35
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 36
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