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AM29F032B-75EE Datasheet(PDF) 4 Page - Advanced Micro Devices |
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AM29F032B-75EE Datasheet(HTML) 4 Page - Advanced Micro Devices |
4 / 39 page Am29F032B 3 TABLE OF CONTENTS Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 5 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 7 Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 8 Table 1. Am29F032B Device Bus Operations .................................. 8 Requirements for Reading Array Data ..................................... 8 Writing Commands/Command Sequences .............................. 8 Program and Erase Operation Status ...................................... 9 Standby Mode .......................................................................... 9 RESET#: Hardware Reset Pin ................................................. 9 Output Disable Mode................................................................ 9 Table 2. Am29F032B Sector Address Table................................... 10 Autoselect Mode..................................................................... 11 Table 3. Am29F032B Autoselect Codes ......................................... 11 Sector Group Protection/Unprotection.................................... 12 Table 4. Sector Group Addresses................................................... 12 Temporary Sector Group Unprotect ....................................... 12 Figure 1. Temporary Sector Group Unprotect Operation................ 12 Hardware Data Protection ...................................................... 13 Low VCC Write Inhibit..................................................................... 13 Write Pulse “Glitch” Protection ........................................................ 13 Logical Inhibit .................................................................................. 13 Power-Up Write Inhibit .................................................................... 13 Command Definitions . . . . . . . . . . . . . . . . . . . . . 13 Reading Array Data ................................................................ 13 Reset Command..................................................................... 13 Autoselect Command Sequence ............................................ 14 Byte Program Command Sequence ....................................... 14 Chip Erase Command Sequence ........................................... 14 Figure 2. Program Operation .......................................................... 15 Sector Erase Command Sequence ........................................ 15 Erase Suspend/Erase Resume Commands........................... 15 Figure 3. Erase Operation............................................................... 16 Command Definitions ............................................................. 17 Table 5. Am29F032B Command Definitions................................... 17 Write Operation Status . . . . . . . . . . . . . . . . . . . . 18 DQ7: Data# Polling................................................................. 18 Figure 4. Data# Polling Algorithm ................................................... 18 RY/BY#: Ready/Busy# ........................................................... 19 DQ6: Toggle Bit I .................................................................... 19 DQ2: Toggle Bit II ................................................................... 19 Reading Toggle Bits DQ6/DQ2 .............................................. 19 DQ5: Exceeded Timing Limits ................................................ 20 DQ3: Sector Erase Timer ....................................................... 20 Figure 5. Toggle Bit Algorithm........................................................ 20 Table 6. Write Operation Status..................................................... 21 Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 22 Figure 6. Maximum Negative Overshoot Waveform ...................... 22 Figure 7. Maximum Positive Overshoot Waveform........................ 22 Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 22 DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 23 TTL/NMOS Compatible .......................................................... 23 CMOS Compatible.................................................................. 23 Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 8. Test Setup...................................................................... 24 Table 7. Test Specifications ........................................................... 24 Key To Switching Waveforms . . . . . . . . . . . . . . . 24 AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 25 Read-only Operations............................................................. 25 Figure 9. Read Operation Timings ................................................. 25 Hardware Reset (RESET#) .................................................... 26 Figure 10. RESET# Timings .......................................................... 26 Write (Erase/Program) Operations ......................................... 27 Figure 11. Program Operation Timings.......................................... 28 Figure 12. Chip/Sector Erase Operation Timings .......................... 29 Figure 13. Data# Polling Timings (During Embedded Algorithms). 30 Figure 14. Toggle Bit Timings (During Embedded Algorithms)...... 30 Figure 15. DQ2 vs. DQ6................................................................. 31 Temporary Sector Unprotect .................................................. 31 Figure 16. Temporary Sector Group Unprotect Timings ................ 31 Write (Erase/Program) Operations—Alternate CE# Controlled Writes .................................................................... 32 Figure 17. Alternate CE# Controlled Write Operation Timings ...... 33 Erase And Programming Performance . . . . . . . 34 Latchup Characteristic . . . . . . . . . . . . . . . . . . . . 34 TSOP And SO Pin Capacitance . . . . . . . . . . . . . 34 Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 35 SO 044–44-Pin Small Outline Package.................................. 35 TS 040–40-Pin Standard Thin Small Outline Package........... 36 TSR040–40-Pin Reversed Thin Small Outline Package ........ 37 Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 38 Revision A (June 1998) .......................................................... 38 Revision B (July 1998)............................................................ 38 Revision C (January 1999) ..................................................... 38 Revision C+1 (April 14, 1999)................................................. 38 Revision D (November 17, 1999) ........................................... 38 Revision D+1 (December 5, 2000) ......................................... 38 |
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