參數(shù)資料
型號(hào): AM29LV040B-90JD
廠商: Advanced Micro Devices, Inc.
英文描述: 4 Megabit (512 K x 8-Bit) CMOS 3.0 Volt-only, Uniform Sector 32-Pin Flash Memory
中文描述: 4兆位(512畝× 8位),3.0伏的CMOS只,均勻部門32引腳閃存
文件頁(yè)數(shù): 5/37頁(yè)
文件大?。?/td> 471K
代理商: AM29LV040B-90JD
October11,2006 21354E4
Am29LV040B
5
D A T A S H E E T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . .6
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . .7
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .8
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ordering Information . . . . . . . . . . . . . . . . . . . . . . .9
Device Bus Operations . . . . . . . . . . . . . . . . . . . . .10
Table 1. Am29LV040B Device Bus Operations . . . . . . . . . . . . . . .10
Requirements for Reading Array Data . . . . . . . . . . . . . . . . . 10
Writing Commands/Command Sequences . . . . . . . . . . . . . . 10
Program and Erase Operation Status . . . . . . . . . . . . . . . . . . 11
Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Automatic Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Output Disable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 2. Am29LV040BT Sector Address Table . . . . . . . . . . . . . . .11
Autoselect Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3. Am29LV040B Autoselect Codes (High Voltage Method) .12
Sector Protection/Unprotection . . . . . . . . . . . . . . . . . . . . . . . 12
Hardware Data Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Low V
CC
Write Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Write Pulse “Glitch” Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Logical Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Power-Up Write Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Command Definitions . . . . . . . . . . . . . . . . . . . . . .13
Reading Array Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Reset Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Autoselect Command Sequence . . . . . . . . . . . . . . . . . . . . . . 13
Byte Program Command Sequence . . . . . . . . . . . . . . . . . . . 13
Unlock Bypass Command Sequence . . . . . . . . . . . . . . . . . . . . . . .14
Chip Erase Command Sequence . . . . . . . . . . . . . . . . . . . . . 14
Figure 1. Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Sector Erase Command Sequence . . . . . . . . . . . . . . . . . . . . 15
Erase Suspend/Erase Resume Commands . . . . . . . . . . . . . 15
Figure 2. Erase Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Command Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 4. Am29LV040B Command Definitions . . . . . . . . . . . . . . . . .17
Write Operation Status . . . . . . . . . . . . . . . . . . . . .18
DQ7: Data# Polling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3. Data# Polling Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . 18
DQ6: Toggle Bit I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DQ2: Toggle Bit II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reading Toggle Bits DQ6/DQ2 . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 4. Toggle Bit Algorithm. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
DQ5: Exceeded Timing Limits . . . . . . . . . . . . . . . . . . . . . . . . 20
DQ3: Sector Erase Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Table 5. Write Operation Status . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 22
Figure 5. Maximum Negative OvershootWaveform. . . . . . . . . . . 22
Figure 6. Maximum Positive OvershootWaveform. . . . . . . . . . . . 22
Operating Ranges. . . . . . . . . . . . . . . . . . . . . . . . . 22
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 7. I
CC1
Current vs. Time (Showing Active and Automatic
SleepCurrents). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 8. Typical I
CC1
vs. Frequency . . . . . . . . . . . . . . . . . . . . . . 24
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 9. Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 6. Test Specifications ...........................................................25
Key to Switching Waveforms. . . . . . . . . . . . . . . . 25
Figure 10. Input Waveforms and Measurement Levels . . . . . . . . 25
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 26
Read Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 11. Read Operations Timings . . . . . . . . . . . . . . . . . . . . . . 26
Erase/Program Operations . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 12. Program Operation Timings. . . . . . . . . . . . . . . . . . . . . 28
Figure 13. Chip/Sector Erase Operation Timings. . . . . . . . . . . . . 28
Figure 14. Data# Polling Timings (During Embedded Algorithms) 29
Figure 15. Toggle Bit Timings (During Embedded Algorithms). . . 29
Figure 16. DQ2 vs. DQ6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Alternate CE# Controlled Erase/Program Operations . . . . . . 31
Figure 17. Alternate CE# Controlled Write Operation Timings. . . 32
Erase and Programming Performance . . . . . . . 33
Latchup Characteristics. . . . . . . . . . . . . . . . . . . . 33
TSOP and SO Pin Capacitance . . . . . . . . . . . . . . 33
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 34
TS 032—32-Pin Standard TSOP . . . . . . . . . . . . . . . . . . . . . . 34
PL 032—32-Pin Plastic Leaded Chip Carrier . . . . . . . . . . . . 35
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 36
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