AM29LV001B_06 Datasheet, PDF (5/43 Pages) Advanced Micro Devices – 1 Megabit (128 K x 8-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

DATA SHEET
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. Am29LV001B 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. Am29LV001B Top Boot Sector Architecture ...................... 9
Table 3. Am29LV001B Bottom Boot Sector Architecture.................. 9
Autoselect Mode ....................................................................... 9
Table 4. Am29LV001B Autoselect Codes....................................... 10
Sector Protection/Unprotection ............................................... 10
Temporary Sector Unprotect .................................................. 10
Figure 1. In-System Sector Protect/Unprotect Algorithms ...............11
Figure 2. Temporary Sector Unprotect Operation ...........................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
Figure 3. Program Operation ..........................................................14
Chip Erase Command Sequence ........................................... 14
Sector Erase Command Sequence ........................................ 15
Erase Suspend/Erase Resume Commands ........................... 15
Figure 4. Erase Operation ...............................................................16
Command Definitions ............................................................. 17
Table 5. Am29LV001B Command Definitions ................................ 17
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 18
DQ7: Data# Polling ................................................................. 18
Figure 5. Data# Polling Algorithm ...................................................18
DQ6: Toggle Bit I .................................................................... 18
DQ2: Toggle Bit II ................................................................... 19
Reading Toggle Bits DQ6/DQ2 ............................................... 19
DQ5: Exceeded Timing Limits ................................................ 19
Figure 6. Toggle Bit Algorithm ........................................................ 20
DQ3: Sector Erase Timer ....................................................... 20
Table 6. Write Operation Status..................................................... 21
Absolute Maximum Ratings . . . . . . . . . . . . . . . . 22
Figure 7. Maximum Negative Overshoot Waveform ...................... 22
Figure 8. Maximum Positive Overshoot Waveform ........................ 22
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . 22
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 9. I_CC1 Current vs. Time (Showing Active and Automatic
Sleep Currents) .............................................................................. 24
Figure 10. Typical I_CC1 vs. Frequency ........................................... 24
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 11. Test Setup ..................................................................... 25
Table 7. Test Specifications ........................................................... 25
Key to Switching Waveforms. . . . . . . . . . . . . . . . 25
Figure 12. Input Waveforms and Measurement Levels ................. 25
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 13. Read Operations Timings ............................................. 26
Hardware Reset (RESET#) .................................................... 27
Figure 14. RESET# Timings .......................................................... 27
Erase/Program Operations ..................................................... 28
Figure 15. Program Operation Timings .......................................... 29
Figure 16. Chip/Sector Erase Operation Timings .......................... 30
Figure 17. Data# Polling Timings (During Embedded Algorithms) . 31
Figure 18. Toggle Bit Timings (During Embedded Algorithms) ...... 31
Figure 19. DQ2 vs. DQ6 ................................................................. 32
Temporary Sector Unprotect .................................................. 32
Figure 20. Temporary Sector Unprotect Timing Diagram .............. 32
Figure 21. In-System Sector Protect/Unprotect Timing Diagram ... 33
Alternate CE# Controlled Erase/Program Operations ............ 34
Figure 22. Alternate CE# Controlled Write Operation Timings ...... 35
Erase and Programming Performance . . . . . . . 36
Latchup Characteristics . . . . . . . . . . . . . . . . . . . . 36
TSOP Pin Capacitance . . . . . . . . . . . . . . . . . . . . . 36
PLCC Pin Capacitance . . . . . . . . . . . . . . . . . . . . . 36
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 38
PL 032—32-Pin Plastic Leaded Chip Carrier ......................... 38
TS 032—32-Pin Standard Thin Small Outline Package ......... 39
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 40
May 5, 2006 21557F4
Am29LV001B
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