AM29F400BT-55EF Spansion Inc., AM29F400BT-55EF Datasheet - Page 35

• Manufacturer Part Number: AM29F400BT-55EF
• Description: IC, FLASH, 4MBIT, 55NS, TSOP-48
• Manufacturer: Spansion Inc.

Specifications of AM29F400BT-55EF

• Memory Type: Flash
• Memory Size: 4Mbit
• Memory Configuration: 512K X 8 / 256K X 16
• Access Time: 55ns
• Supply Voltage Range: 4.75V To 5.25V
• Memory Case Style: TSOP
• No. Of Pins: 48
• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 55ns
• 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): 4.75 to 5.25V
• 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: Compliant

AC CHARACTERISTICS
Temporary Sector Unprotect
Note: Not 100% tested.
November 11, 2009 21505E8
Note:
The system may use either CE# or OE# to toggle DQ2 and DQ6. DQ2 toggles only when read at an address within an
erase-suspended sector.
JEDEC
WE#
DQ6
DQ2
Parameter
RESET#
RY/BY#
Embedded
WE#
Erasing
CE#
t
Enter
t
Std
VIDR
RSP
12 V
0 or 5 V
Description
RESET# Setup Time for Temporary Sector
Unprotect
V
ID
Erase
Rise and Fall Time (See Note)
Figure 18. Temporary Sector Unprotect Timing Diagram
Suspend
Erase
t
VIDR
Erase Suspend
Read
t
RSP
D A T A
Figure 17. DQ2 vs. DQ6
Suspend Program
Enter Erase
Program or Erase Command Sequence
Am29F400B
S H E E T
Suspend
Program
Erase
Min
Min
Erase Suspend
Read
All Speed Options
Resume
Erase
t
500
VIDR
Erase
4
0 or 5 V
Complete
Erase
Unit
ns
µs
33