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AM26LV400BT-55REE Arkusz danych(PDF) 5 Page - SPANSION

Numer części AM26LV400BT-55REE
Szczegółowy opis  4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
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AM26LV400BT-55REE Arkusz danych(HTML) 5 Page - SPANSION

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December 4, 2006 21523D4
Am29LV400B
3
D A TA
SH EE T
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 5
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 6
Special Handling Instructions for (FBGA) ...................................... 7
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 8
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . 9
Table 1. Am29LV400B Device Bus Operations ......................................9
Word/Byte Configuration ................................................................ 9
Requirements for Reading Array Data ........................................... 9
Writing Commands/Command Sequences .................................. 10
Program and Erase Operation Status .......................................... 10
Standby Mode .............................................................................. 10
Automatic Sleep Mode ................................................................. 10
RESET#: Hardware Reset Pin ..................................................... 10
Output Disable Mode ................................................................... 11
Table 2. Am29LV400BT Top Boot Sector Address Table .....................11
Table 3. Am29LV400BB Bottom Boot Sector Address Table ...............11
Autoselect Mode .......................................................................... 12
Table 4. Am29LV400B Autoselect Codes (High Voltage Method) ........12
Sector Protection/Unprotection .................................................... 12
Figure 1. In-System Sector Protect/Unprotect Algorithms .................... 13
Temporary Sector Unprotect ........................................................ 14
Figure 2. Temporary Sector Unprotect Operation................................. 14
Hardware Data Protection ............................................................ 14
Low V
CC Write Inhibit .................................................................... 14
Write Pulse “Glitch” Protection ..................................................... 14
Logical Inhibit ............................................................................... 14
Power-Up Write Inhibit ................................................................. 14
Command Definitions . . . . . . . . . . . . . . . . . . . . . 15
Reading Array Data ...................................................................... 15
Reset Command .......................................................................... 15
Autoselect Command Sequence .................................................. 15
Word/Byte Program Command Sequence ................................... 15
Unlock Bypass Command Sequence ........................................... 16
Figure 3. Program Operation ................................................................ 16
Chip Erase Command Sequence ................................................. 16
Sector Erase Command Sequence .............................................. 17
Erase Suspend/Erase Resume Commands ................................ 17
Figure 4. Erase Operation..................................................................... 18
Table 5. Am29LV400B Command Definitions .......................................19
Write Operation Status . . . . . . . . . . . . . . . . . . . . 20
DQ7: Data# Polling ...................................................................... 20
Figure 5. Data# Polling Algorithm ......................................................... 20
RY/BY#: Ready/Busy# ................................................................. 21
DQ6: Toggle Bit I .......................................................................... 21
DQ2: Toggle Bit II ......................................................................... 21
Reading Toggle Bits DQ6/DQ2 .................................................... 21
DQ5: Exceeded Timing Limits ...................................................... 22
DQ3: Sector Erase Timer ............................................................. 22
Figure 6. Toggle Bit Algorithm............................................................... 22
Table 6. Write Operation Status ........................................................... 23
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 24
Figure 7. Maximum Negative Overshoot Waveform............................. 24
Figure 8. Maximum Positive Overshoot Waveform .............................. 24
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 9. I
CC1 Current vs. Time (Showing Active and Automatic
Sleep Currents)..................................................................................... 26
Figure 10. Typical I
CC1 vs. Frequency................................................... 26
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 11. Test Setup ........................................................................... 27
Table 7. Test Specifications .................................................................. 27
Figure 12. Input Waveforms and Measurement Levels ........................ 27
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 28
Read Operations .......................................................................... 28
Figure 13. Read Operations Timings.................................................... 28
Hardware Reset (RESET#) .......................................................... 29
Figure 14. RESET# Timings ................................................................. 29
Word/Byte Configuration (BYTE#) ............................................. 30
Figure 15. BYTE# Timings for Read Operations .................................. 30
Figure 16. BYTE# Timings for Write Operations .................................. 30
Erase/Program Operations .......................................................... 31
Figure 17. Program Operation Timings ................................................ 32
Figure 18. Chip/Sector Erase Operation Timings ................................. 33
Figure 19. Data# Polling Timings (During Embedded Algorithms) ....... 34
Figure 20. Toggle Bit Timings (During Embedded Algorithms) ............ 34
Figure 21. DQ2 vs. DQ6 ....................................................................... 35
Figure 22. Temporary Sector Unprotect Timing Diagram ..................... 35
Figure 23. Sector Protect/Unprotect Timing Diagram ........................... 36
Figure 24. Alternate CE# Controlled Write Operation Timings ............. 38
Erase And Programming Performance. . . . . . . . 39
Latchup Characteristics . . . . . . . . . . . . . . . . . . . 39
TSOP And SO Pin Capacitance . . . . . . . . . . . . . 39
BGA Ball Capacitance . . . . . . . . . . . . . . . . . . . . . 40
Data Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
TS 048—48-Pin Standard TSOP ................................................. 41
TSR048—48-Pin Reverse TSOP ................................................. 42
FBA048—48-ball Fine-Pitch Ball Grid Array (FBGA)
6 x 8 mm package ........................................................................ 43
SO 044—44-Pin Small Outline Package ..................................... 44
Revision A (January 1998) ........................................................... 45
Revision B (July 1998) ................................................................. 45
Revision B+1 (August 1998) ........................................................ 45
Revision C (January 1999) ........................................................... 45
Revision C+1 (July 2, 1999) ......................................................... 45
Revision D (January 3, 1999) ....................................................... 45
Revision D+1 (November 8, 2000) ............................................... 45
Revision D+2 (October 30, 2003) ................................................ 45
Revision D+3 (December 13, 2005) ............................................. 45
Revision D4 (December 4, 2006) ................................................. 45


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