AM29F200BB-90SE Spansion Inc., AM29F200BB-90SE Datasheet - Page 17

• Manufacturer Part Number: AM29F200BB-90SE
• Manufacturer: Spansion Inc.

Specifications of AM29F200BB-90SE

• Cell Type: NOR
• Density: 2Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 18/17Bit
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -55C to 125C
• Package Type: SOIC
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Military
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8/16Bit
• Number Of Words: 256K/128K
• Supply Current: 50mA
• Mounting: Surface Mount
• Pin Count: 44
• Lead Free Status / Rohs Status: Not Compliant

mode. The device allows reading autoselect codes
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
device has resumed erasing.
August 3, 2009 21526D6
D A T A
Am29F200B
S H E E T
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
15