AM29BDS640G SPANSION [SPANSION], AM29BDS640G Datasheet - Page 6

• Manufacturer Part Number: AM29BDS640G
• Description: 64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
• Manufacturer: SPANSION [SPANSION]

Table of Contents
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . .6
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Block Diagram of Simultaneous
Operation Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . .9
Input/Output Descriptions . . . . . . . . . . . . . . . . . . . 10
Logic Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . 11
Device Bus Operations . . . . . . . . . . . . . . . . . . . . . . 12
Common Flash Memory Interface (CFI) . . . . . . . 18
Command Definitions . . . . . . . . . . . . . . . . . . . . . .26
4
Special Handling Instructions for FBGA Package .......................... 9
Enhanced VersatileIO™ (V
Requirements for Asynchronous Read
Operation (Non-Burst) ........................................................................ 12
Requirements for Synchronous (Burst) Read Operation ......... 13
8-, 16-, and 32-Word Linear Burst with Wrap Around ............. 14
Burst Mode Configuration Register ................................................. 14
Reduced Wait-State Handshaking Option ..................................... 14
Simultaneous Read/Write Operations with Zero Latency ....... 15
Writing Commands/Command Sequences ................................... 15
Accelerated Program Operation ...................................................... 15
Autoselect Functions ............................................................................ 16
Standby Mode ......................................................................................... 16
Automatic Sleep Mode ......................................................................... 16
RESET#: Hardware Reset Input ........................................................ 16
Output Disable Mode ........................................................................... 17
Hardware Data Protection ................................................................. 17
Write Protect (WP#) ........................................................................... 17
Low V
Write Pulse “Glitch” Protection .......................................................18
Logical Inhibit ..........................................................................................18
Power-Up Write Inhibit ......................................................................18
V
Reading Array Data ............................................................................. 26
Set Burst Mode Configuration Register Command Sequence 26
Read Mode Setting ............................................................................... 27
Programmable Wait State Configuration ...................................... 27
Reduced Wait-State Handshaking Option ....................................28
Standard Handshaking Operation ................................................... 29
Burst Read Mode Configuration ...................................................... 29
Burst Active Clock Edge Configuration ......................................... 29
RDY Configuration .............................................................................. 30
CC
Table 1. Device Bus Operations ...........................................12
Table 2. Burst Address Groups ............................................14
Table 3. CFI Query Identification String ...............................19
System Interface String..................................................... 19
Table 5. Device Geometry Definition......................................... 20
Table 6. Primary Vendor-Specific Extended Query .................21
Table 7. Sector Address Table .............................................22
Figure 1. Synchronous/Asynchronous State Diagram ............. 27
Table 8. Programmable Wait State Settings ..........................28
Table 9. Initial Access Cycles vs. Frequency ..........................28
Table 10. Wait States for Standard Handshaking ...................29
Table 11. Burst Read Mode Settings ....................................29
and V
CC
Write Inhibit ........................................................................ 17
IO
Power-up And Power-down Sequencing .............18
IO
) Control ............................................ 12
Am29BDS640G
P r e l i m i n a r y
Write Operation Status . . . . . . . . . . . . . . . . . . . . 38
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . 44
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . 44
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 45
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Key to Switching Waveforms . . . . . . . . . . . . . . . . 46
Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . 46
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 47
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuration Register ........................................................................ 30
Sector Lock/Unlock Command Sequence .................................... 30
Reset Command .....................................................................................31
Autoselect Command Sequence .......................................................31
Program Command Sequence ...........................................................32
Unlock Bypass Command Sequence ...............................................32
Chip Erase Command Sequence ......................................................34
Sector Erase Command Sequence ...................................................34
Erase Suspend/Erase Resume Commands .....................................35
Command Definitions .......................................................................... 37
DQ7: Data# Polling ..............................................................................38
RDY: Ready .............................................................................................40
DQ6: Toggle Bit I ................................................................................. 40
DQ2: Toggle Bit II ................................................................................. 41
Reading Toggle Bits DQ6/DQ2 ....................................................... 42
DQ5: Exceeded Timing Limits .......................................................... 42
DQ3: Sector Erase Timer ...................................................................43
Synchronous/Burst Read .................................................................... 48
Asynchronous Read ..............................................................................55
Table 12. Burst Mode Configuration Register ........................ 30
Figure 2. Erase Operation.................................................. 33
Figure 3. Program Operation.............................................. 36
Table 13. Command Definitions .......................................... 37
Figure 4. Data# Polling Algorithm....................................... 39
Figure 5. Toggle Bit Algorithm............................................ 41
Table 14. DQ6 and DQ2 Indications .................................... 42
Table 15. Write Operation Status ........................................ 43
Figure 6. Maximum Negative Overshoot Waveform ............... 44
Figure 7. Maximum Positive
Overshoot Waveform ........................................................ 44
Figure 8. Test Setup ......................................................... 46
Table 16. Test Specifications .............................................. 46
Figure 9. Input Waveforms and Measurement Levels............. 46
Figure 10. V
Figure 11. CLK Synchronous Burst Mode Read
(rising active CLK)............................................................ 49
Figure 12. CLK Synchronous Burst Mode Read
(Falling Active Clock) ........................................................ 50
Figure 13. Synchronous Burst Mode Read ............................ 51
Figure 14. 8-word Linear Burst with Wrap Around................. 51
Figure 15. Burst with RDY Set One Cycle Before Data............ 52
Figure 16. Reduced Wait-State Handshaking Burst
Mode Read Starting at an Even Address .............................. 53
Figure 17. Reduced Wait-State Handshaking Burst Mode Read
Starting at an Odd Address................................................ 54
Figure 18. Asynchronous Mode Read with Latched Addresses . 55
Figure 19. Asynchronous Mode Read................................... 56
Figure 20. Reset Timings................................................... 57
Figure 21. Asynchronous Program Operation Timings ............ 59
CC
and V
IO
Power-up Diagram ........................... 47
25903C1 October 1, 2003