M29W400FB55N3F NUMONYX, M29W400FB55N3F Datasheet - Page 24

• Manufacturer Part Number: M29W400FB55N3F
• Description: IC FLASH 4MBIT 55NS 3V 48TSOP
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of M29W400FB55N3F

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 4M (512K x 8 or 256K x 16)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.12
Table 4.
1. X don’t care, PA program address, PD program data, BA any address in the block.
24/56
Read/Reset
Auto Select
Program
Unlock Bypass
Unlock Bypass Program
Unlock Bypass Reset
Chip Erase
Block Erase
Erase Suspend
Erase Resume
Read CFI Query
All values in the table are in hexadecimal format.
The command interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A18, DQ8-DQ14 and DQ15
are don’t care. DQ15A–1 is A–1 when BYTE is V
Command
Block Protect and Chip Unprotect commands
Each block can be separately protected against accidental program or erase. The whole
chip can be unprotected to allow the data inside the blocks to be changed.
Block protect and chip unprotect operations are described in
Commands, 16-bit mode, BYTE = V
6+
2
6
1
1
1
1
3
3
4
3
2
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
555
555
555
555
555
555
55
X
X
X
X
X
1st
AA
AA
AA
AA
AA
AA
A0
B0
F0
90
30
98
2AA
2AA
2AA
2AA
2AA
2AA
PA
IL
X
or DQ15 when BYTE is V
2nd
PD
55
55
55
55
00
55
55
IH
(1)
555
555
555
555
555
X
Bus write operations
3rd
F0
A0
80
80
90
20
IH
.
555
555
PA
4th
Appendix C: Block
PD
AA
AA
2AA
2AA
5th
55
55
protection.
555
BA
6th
10
30