AM29BDS640G SPANSION [SPANSION], AM29BDS640G Datasheet - Page 76

• 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]

74
Revision A + 4 (July 26, 2002)
Revision B (October 31, 2002)
Revision C (August 13, 2003)
Table 1, Device Bus Operations
Changed Synchronous Write to rising edge of CLK.
Writing Commands/Command Sequences
Added CLK as part of the asynchronous write operation system drive. Added V
and V
AC Characteristics
Changed t
Figure 20, Asynchronous Program Operation Timings
Changed t
Figure 21, Alternate Asynchronous Program Operation Timings
Changed to show CLK low after t
Figure 22, Synchronous Program Operation Timings
Removed t
Figure 23, Alternate Synchronous Program Operation Timings
Changed t
DC Characteristics, CMOS Compatible
Corrected I
Global
Renamed Handshaking Enabled to Reduced Wait-State Handshaking. Renamed
non-Handshaking to Standard Handshaking
Product Selector Guide
Revised with renamed speed options and added Synchronous Access Time with
Reduced Wait-state Handshaking. Added Asynchronous Access Time.
Connection Diagram
Corrected pin numbers on bottom row.
Ordering Information
Revised with global changes. Revised Valid Combinations with updated ordering
information.
FBGA Capacitance
Added BGA Capacitance Table after Erase and Programming Performance.
Global
Updated formatting to new Spansion template. Changed data sheet status from
Advance Information to Preliminary.
Sector Lock/Unlock Command Sequence
Modified description of write cycles.
Reset Command
Modified last paragraph of section.
Table 13, Command Definitions
Added note references to Erase Suspend and Sector Lock/Unlock rows in table.
Replaced addresses “XXX” with “BA” in first and second cycles of Sector Lock/Un-
lock table row. Modified description of BA in legend.
IO
Power-up and Power-down Sequencing section.
CHW
CSW1
AVCH
ACH
CCB
. Changed t
erase/program time from Min to Max.
OE# = V
to t
reference to WE# from AVD#.
AVHC
. Removed t
IL
AHW
to = VI
to t
CHW
Am29BDS640G
H
AVSW
; switched Typ. and Max. values.
ACH
P r e l i m i n a r y
time.
.
and added t
CSW2
.
CC
25903C1 October 1, 2003