AM29F400BT-90EF Spansion Inc., AM29F400BT-90EF Datasheet - Page 23

• Manufacturer Part Number: AM29F400BT-90EF
• Description: IC, FLASH, 4MBIT, 90NS, TSOP-48
• Manufacturer: Spansion Inc.

Specifications of AM29F400BT-90EF

• Memory Type: Flash
• Memory Size: 4Mbit
• Memory Configuration: 512K X 8 / 256K X 16
• Access Time: 90ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: TSOP
• No. Of Pins: 48
• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 50mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Notes:
1. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits.
2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details.
November 11, 2009 21505E8
Standard
Mode
Erase
Suspend
Mode
See “DQ5: Exceeded Timing Limits” for more information.
Embedded Program Algorithm
Embedded Erase Algorithm
Reading within Erase
Suspended Sector
Reading within Non-Erase
Suspended Sector
Erase-Suspend-Program
Operation
Table 6. Write Operation Status
(Note 2)
D A T A
DQ7#
DQ7#
Data
DQ7
0
1
Am29F400B
No toggle
Toggle
Toggle
Toggle
Data
DQ6
S H E E T
(Note 1)
DQ5
Data
0
0
0
0
DQ3
Data
N/A
N/A
N/A
1
No toggle
(Note 2)
Toggle
Toggle
DQ2
Data
N/A
RY/BY#
0
0
1
1
0
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