D A T A S H E E T
cess................................................................................................ 63
Write Operation Status . . . . . . . . . . . . . . . . . . . . .48
DQ7: Data# Polling ................................................................. 48
Figure 8. Data# Polling Algorithm ................................................... 48
DQ6: Toggle Bit I .................................................................... 49
Figure 9. Toggle Bit Algorithm......................................................... 50
DQ2: Toggle Bit II ................................................................... 50
Table 22. DQ6 and DQ2 Indications ...............................................51
Reading Toggle Bits DQ6/DQ2 .............................................. 51
DQ5: Exceeded Timing Limits ................................................ 51
DQ3: Sector Erase Timer ....................................................... 51
Table 23. Write Operation Status ....................................................52
Absolute Maximum Ratings . . . . . . . . . . . . . . . . .53
Figure 10. Maximum Negative Overshoot Waveform ..................... 53
Figure 11. Maximum Positive Overshoot Waveform....................... 53
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . 53
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . .54
CMOS Compatible . . . . . . . . . . . . . . . . . . . . . . . . .54
Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Figure 12. Test Setup...................................................................... 55
Table 24. Test Specifications ..........................................................55
Key to Switching Waveforms . . . . . . . . . . . . . . . 55
Switching Waveforms . . . . . . . . . . . . . . . . . . . . . 55
Figure 13. Input Waveforms and Measurement Levels .................. 55
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . .56
Figure 27. Standard Handshake Burst Suspend at Address 3Fh (Start-
ing Address 3Dh or Earlier)............................................................ 64
Figure 28. Standard Handshake Burst Suspend at Address 3Eh/3Fh
(Without a Valid Initial Access)....................................................... 64
Figure 29. Standard Handshake Burst Suspend at Address 3Eh/3Fh
(with 1 Access CLK)....................................................................... 65
Figure 30. Read Cycle for Continuous Suspend............................ 65
Asynchronous Mode Read .................................................... 66
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 31. Asynchronous Mode Read with Latched Addresses .... 67
Figure 32. Asynchronous Mode Read............................................ 67
Figure 33. Reset Timings............................................................... 68
Erase/Program Operations ..................................................... 69
Figure 34. Asynchronous Program Operation Timings: AVD# Latched
Addresses ...................................................................................... 70
Figure 35. Asynchronous Program Operation Timings: WE# Latched
Addresses ...................................................................................... 71
Figure 36. Synchronous Program Operation Timings: WE# Latched
Addresses ...................................................................................... 72
Figure 37. Synchronous Program Operation Timings: CLK Latched
Addresses ...................................................................................... 73
Figure 38. Chip/Sector Erase Command Sequence...................... 74
Figure 39. Accelerated Programming Timing................................. 75
Figure 40. Data# Polling Timings (During Embedded Algorithm) .. 76
Figure 41. Toggle Bit Timings (During Embedded Algorithm)........ 76
Figure 42. Synchronous Data Polling Timings/Toggle Bit Timings 77
Figure 43. DQ2 vs. DQ6................................................................. 77
Temporary Sector Unprotect .................................................. 78
Figure 44. Temporary Sector Unprotect Timing Diagram .............. 78
Figure 45. Sector/Sector Block Protect and
V
Power-up ......................................................................... 56
CC
Figure 14. VCC Power-up Diagram ................................................. 56
CLK Characterization ............................................................. 56
Figure 15. CLK Characterization..................................................... 56
Synchronous/Burst Read ....................................................... 57
Figure 16. CLK Synchronous Burst Mode Read (rising active CLK) ...
.........................................................................................................58
Figure 17. CLK Synchronous Burst Mode Read (Falling Active Clock)
.........................................................................................................58
Figure 18. Synchronous Burst Mode Read..................................... 59
Figure 19. 8-word Linear Burst with Wrap Around.......................... 59
Figure 20. Linear Burst with RDY Set One Cycle Before Data ....... 60
Figure 21. Reduced Wait-state Handshake Burst Suspend/Resume at
an Even Address............................................................................. 61
Figure 22. Reduced Wait-state Handshake Burst Suspend/Resume at
an Odd Address .............................................................................. 61
Figure 23. Reduced Wait-state Handshake Burst Suspend/Resume at
Address 3Eh (or Offset from 3Eh)................................................... 62
Figure 24. Reduced Wait-state Handshake Burst Suspend/Resume at
Address 3Fh (or Offset from 3Fh by a Multiple of 64)..................... 62
Figure 25. Standard Handshake Burst Suspend Prior to Initial Access
.........................................................................................................63
Figure 26. Standard Handshake Burst Suspend at or after Initial Ac-
Unprotect Timing Diagram ............................................................. 79
Figure 46. Latency with Boundary Crossing .................................. 80
Figure 47. Latency with Boundary Crossing
into Program/Erase Bank............................................................... 81
Figure 48. Example of Wait States Insertion.................................. 82
Figure 49. Back-to-Back Read/Write Cycle Timings...................... 83
Erase and Programming Performance . . . . . . . 84
BGA Ball Capacitance . . . . . . . . . . . . . . . . . . . . . 84
Data Retention. . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 85
VBB080—80-ball Fine-Pitch Ball Grid Array (BGA) 11.5 x
9 mm Package ........................................................................ 85
VBD064—64-ball Fine-Pitch Ball Grid Array (BGA) 9 x
8 mm Package ........................................................................ 86
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 87
4
Am29BDS128H/Am29BDS640H
27024B3 May 10, 2006
SPANSION [ SPANSION ]
