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AM29F040B-09 Folha de dados(PDF) 5 Page - SPANSION

Nome de Peças AM29F040B-09
Descrição Electrónicos  4 Megabit (512 K x 8-Bit) CMOS 5.0 Volt-only, Uniform Sector Flash Memory
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November 11, 2009 21445E8
Am29F040B
3
D A TA
SH EE T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 6
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 7
Table 1. Am29F040B Device Bus Operations ...................................7
Requirements for Reading Array Data ..................................... 7
Writing Commands/Command Sequences .............................. 7
Program and Erase Operation Status ...................................... 7
Standby Mode .......................................................................... 7
Output Disable Mode................................................................ 8
Table 2. Sector Addresses Table ......................................................8
Autoselect Mode....................................................................... 9
Table 3. Am29F040B Autoselect Codes (High Voltage Method) .......9
Sector Protection/Unprotection................................................. 9
Hardware Data Protection ........................................................ 9
Low VCC Write Inhibit........................................................................ 9
Write Pulse “Glitch” Protection .......................................................... 9
Logical Inhibit .................................................................................... 9
Power-Up Write Inhibit ...................................................................... 9
Command Definitions . . . . . . . . . . . . . . . . . . . . . 10
Reading Array Data ................................................................ 10
Reset Command..................................................................... 10
Autoselect Command Sequence ............................................ 10
Byte Program Command Sequence....................................... 10
Figure 1. Program Operation ......................................................... 11
Chip Erase Command Sequence ........................................... 11
Sector Erase Command Sequence ........................................ 11
Erase Suspend/Erase Resume Commands........................... 12
Figure 2. Erase Operation.............................................................. 12
Command Definitions ............................................................. 13
Table 4. Am29F040B Command Definitions....................................13
Write Operation Status . . . . . . . . . . . . . . . . . . . . 14
DQ7: Data# Polling................................................................. 14
Figure 3. Data# Polling Algorithm .................................................. 14
DQ6: Toggle Bit I .................................................................... 15
DQ2: Toggle Bit II ................................................................... 15
Reading Toggle Bits DQ6/DQ2............................................... 15
DQ5: Exceeded Timing Limits ................................................ 15
DQ3: Sector Erase Timer ....................................................... 16
Figure 4. Toggle Bit Algorithm....................................................... 16
Table 5. Write Operation Status...................................................... 17
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 18
Figure 5. Maximum Negative Overshoot Waveform ..................... 18
Figure 6. Maximum Positive Overshoot Waveform....................... 18
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 18
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 19
TTL/NMOS Compatible .......................................................... 19
CMOS Compatible.................................................................. 19
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 7. Test Setup..................................................................... 20
Table 6. Test Specifications ........................................................... 20
Key to Switching Waveforms. . . . . . . . . . . . . . . . 20
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 21
Read Only Operations ............................................................ 21
Figure 8. Read Operation Timings ................................................ 22
Erase and Program Operations .............................................. 23
Figure 9. Program Operation Timings........................................... 24
Figure 10. Chip/Sector Erase Operation Timings ......................... 24
Figure 11. Data# Polling Timings (During Embedded Algorithms) 25
Figure 12. Toggle Bit Timings (During Embedded Algorithms)..... 25
Figure 13. DQ2 vs. DQ6................................................................ 26
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 27
Erase and Program Operations .............................................. 27
Alternate CE# Controlled Writes .................................................... 27
Figure 14. Alternate CE# Controlled Write Operation Timings ..... 28
Erase and Programming Performance . . . . . . . . 29
Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 29
TSOP Pin Capacitance . . . . . . . . . . . . . . . . . . . . 29
PLCC Pin Capacitance . . . . . . . . . . . . . . . . . . . . . 30
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PL 032—32-Pin Plastic Leaded Chip Carrier ......................... 31
TS 032—32-Pin Standard Thin Small Package...................... 32
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 33


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