AM29F200AB-120EC AMD [Advanced Micro Devices], AM29F200AB-120EC Datasheet - Page 15

• Manufacturer Part Number: AM29F200AB-120EC
• Description: 2 Megabit (256 K x 8-Bit/128 K x 16-Bit) CMOS 5.0 Volt-only, Boot Sector Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

even at addresses within erasing sectors, since the
codes are not stored in the memory array. When the
device exits the autoselect mode, the device reverts to
the Erase Suspend mode, and is ready for another
valid operation. See “Autoselect Command Sequence”
for more information.
The system must write the Erase Resume command
(address bits are “don’t care”) to exit the erase suspend
mode and continue the sector erase operation. Further
writes of the Resume command are ignored. Another
Erase Suspend command can be written after the de-
vice has resumed erasing.
P R E L I M I N A R Y
Am29F200A
Notes:
1. See the appropriate Command Definitions table for erase
2. See “DQ3: Sector Erase Timer” for more information.
command sequence.
No
Figure 3. Erase Operation
Command Sequence
Erasure Completed
Write Erase
from System
Data = FFh?
Data Poll
START
Yes
Embedded
Erase
algorithm
in progress
20637B-8
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