M29F400FB55M3F2 Micron Technology Inc, M29F400FB55M3F2 Datasheet - Page 31

• Manufacturer Part Number: M29F400FB55M3F2
• Manufacturer: Micron Technology Inc

Specifications of M29F400FB55M3F2

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 55ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: -40C to 125C
• Package Type: SO W
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Automotive
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 20mA
• Mounting: Surface Mount
• Pin Count: 44
• Lead Free Status / Rohs Status: Compliant

Table 5.
X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in hexadecimal.
Command Interface: only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A19, DQ8-DQ14 and DQ15 are Don’t
Read/Reset: After a Read/Reset command, read the memory as normal until another command is issued.
Auto Select: After an Auto Select command, read Manufacturer ID, Device ID or Block Protection Status.
Program, Unlock Bypass Program, Chip Erase, Block Erase: After these commands read the Status Register until the
Unlock Bypass: After the Unlock Bypass command issue Unlock Bypass Program or Unlock Bypass Reset commands.
Unlock Bypass Reset: After the Unlock Bypass Reset command read the memory as normal until another command is issued.
Erase Suspend: After the Erase Suspend command read non-erasing memory blocks as normal, issue Auto Select and
Erase Resume: After the Erase Resume command the suspended Erase operation resumes, read the Status Register until the
CFI Query: Command is valid when device is ready to read array data or when device is in Auto Select mode.
Read/Reset
Auto Select
Program
Unlock Bypass
Unlock Bypass
Program
Unlock Bypass Reset
Chip Erase
Block Erase
Erase Suspend
Erase Resume
Read CFI Query
Care. DQ15A–1 is A–1 when BYTE is V
Program/Erase Controller completes and the memory returns to Read Mode. Add additional Blocks during Block Erase
Command with additional Bus Write Operations until Timeout Bit is set.
Program commands on non-erasing blocks as normal.
Program/Erase Controller completes and the memory returns to Read Mode.
Command
Commands, 8-bit mode, BYTE = V
1
3
3
4
3
2
2
6
6+ AAA
1
1
1
X
AAA
AAA
AAA
AAA
X
X
AAA
X
X
AA
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
1st
F0
AA
AA
AA
AA
A0
90
AA
AA
B0
30
98
IL
or DQ15 when BYTE is V
555
555
555
555
PA
X
555
555
2nd
55
55
55
55
PD
00
55
55
IL
X
AAA
AAA
AAA
AAA
AAA
Bus Write Operations
3rd
IH
.
F0
20
80
90
A0
80
PA
AAA
AAA
4th
PD
AA
AA
555
555
5th
55
55
AAA
BA
6th
10
30
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