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AM29F040B-90ED Datasheet(PDF) 5 Page - Advanced Micro Devices |
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AM29F040B-90ED Datasheet(HTML) 5 Page - Advanced Micro Devices |
5 / 36 page November 1, 2006 21445E5 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 ................................................ 21 Erase and Program Operations .............................................. 22 Figure 9. Program Operation Timings........................................... 23 Figure 10. Chip/Sector Erase Operation Timings ......................... 23 Figure 11. Data# Polling Timings (During Embedded Algorithms) 24 Figure 12. Toggle Bit Timings (During Embedded Algorithms)..... 24 Figure 13. DQ2 vs. DQ6................................................................ 25 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 26 Erase and Program Operations .............................................. 26 Alternate CE# Controlled Writes .................................................... 26 Figure 14. Alternate CE# Controlled Write Operation Timings ..... 27 Erase and Programming Performance . . . . . . . . 28 Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 28 TSOP Pin Capacitance . . . . . . . . . . . . . . . . . . . . 28 PLCC and PDIP Pin Capacitance. . . . . . . . . . . . . 29 Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 30 PD 032—32-Pin Plastic DIP ................................................... 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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