M29DW323DB70N6E STMicroelectronics, M29DW323DB70N6E Datasheet - Page 18
![IC, FLASH, 32MBIT, 70NS, TSOP-48](/photos/19/5/190512/4243308_sml.jpg)
M29DW323DB70N6E
Manufacturer Part Number
M29DW323DB70N6E
Description
IC, FLASH, 32MBIT, 70NS, TSOP-48
Manufacturer
STMicroelectronics
Datasheet
1.M29DW323DB70N6E.pdf
(49 pages)
Specifications of M29DW323DB70N6E
Memory Type
Flash - Boot Block
Memory Size
32Mbit
Memory Configuration
4M X 8 / 2M X 16
Ic Interface Type
Parallel
Access Time
70ns
Supply Voltage Range
2.7V To 3.6V
Memory Case Style
TSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M29DW323DB70N6E
Manufacturer:
VISHAY
Quantity:
6 700
Part Number:
M29DW323DB70N6E
Manufacturer:
ST
Quantity:
20 000
M29DW323DT, M29DW323DB
Enter Extended Block Command
The M29DW323D has an extra 64KByte block
(Extended Block) that can only be accessed using
the Enter Extended Block command. Three Bus
write cycles are required to issue the Extended
Block command. Once the command has been is-
sued the device enters Extended Block mode
where all Bus Read or Program operations to the
Boot Block addresses access the Extended Block.
The Extended Block (with the same address as
the boot block) cannot be erased, and can be
treated as one-time programmable (OTP) memo-
ry. In Extended Block mode the Boot Blocks are
not accessible. In Extended Block mode dual op-
erations are possible, with the Extended Block
mapped in Bank A. When in Extended Block
mode, Erase Commands in Bank A are not al-
lowed.
Table 5. Commands, 16-bit mode, BYTE = V
Note: X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address. All values in the table are in
18/49
Read/Reset
Auto Select
Program
Double Word Program
Unlock Bypass
Unlock Bypass
Program
Unlock Bypass Reset
Chip Erase
Block Erase
Erase Suspend
Erase Resume
Read CFI Query
Enter Extended Block
Exit Extended Block
hexadecimal.
The Command Interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A20, DQ8-DQ14 and DQ15 are Don’t
Care. DQ15A–1 is A–1 when BYTE is V
Command
6+
1
3
3
4
3
3
2
2
6
1
1
1
3
4
Addr Data
BKA
BKA
555
555
555
555
555
555
555
555
555
55
X
X
X
1st
IL
AA
AA
AA
AA
AA
AA
AA
AA
F0
A0
B0
50
90
30
98
or DQ15 when BYTE is V
Addr
2AA
2AA
2AA
2AA
2AA
2AA
2AA
2AA
PA0
PA
X
2nd
IH
Data
PD0
PD
55
55
55
55
00
55
55
55
55
(BKA)
Addr
PA1
555
555
555
555
555
555
555
To exit from the Extended Block mode the Exit Ex-
tended Block command must be issued.
The Extended Block can be protected, however
once protected the protection cannot be undone.
Exit Extended Block Command
The Exit Extended Block command is used to exit
from the Extended Block mode and return the de-
vice to Read mode. Four Bus Write operations are
required to issue the command.
Block Protect and Chip Unprotect Commands
Groups of blocks can be protected against acci-
dental Program or Erase. The Protection Groups
are shown in Appendix A, Tables 21 and 22, Block
Addresses. 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 Appendix D.
X
Bus Write Operations
IH
.
3rd
Data
PD1
F0
A0
90
20
80
80
88
90
Addr Data
555
555
PA
X
4th
PD
AA
AA
00
Addr Data
2AA
2AA
5th
55
55
Addr
555
BA
6th
Data
10
30