M29F800DB55N1 NUMONYX, M29F800DB55N1 Datasheet - Page 15

• Manufacturer Part Number: M29F800DB55N1
• Description: IC FLASH 8MBIT 55NS 48TSOP
• Manufacturer: NUMONYX

Specifications of M29F800DB55N1

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 8M (1M x 8 or 512K x 16)
• Speed: 55ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M29F800DT
3.0.6
Additional bus operations can be performed to read the Electronic Signature and also to apply and
remove Block Protection. These bus operations are intended for use by programming equipment and are
not usually used in applications. They require V
3.0.7
The memory has two codes, the manufacturer code and the device code, that can be read to identify the
memory. These codes can be read by applying the signals listed in
and
3.0.8
Each block can be separately protected against accidental Program or Erase. Protected blocks can be
unprotected to allow data to be changed.
There are two methods available for protecting and unprotecting the blocks, one for use on programming
equipment and the other for in-system use. Block Protect and Chip Unprotect operations are described in
Appendix
Table 2.
1. X = V
Table 3.
1. X = V
Bus Read
Bus Write
Output Disable
Standby
Read Manufacturer Code
Read Device Code
Bus Read
Bus Write
Output Disable
Standby
Read Manufacturer Code
Read Device Code
Table 3: Bus operations, BYTE =
Operation
IL
IL
Operation
or V
or V
C.
IH
IH
Special bus operations
Electronic Signature
Block Protection and Blocks Unprotection
Bus operations, BYTE = V
Bus operations, BYTE = V
.
.
V
V
V
V
V
E
X
IH
IL
IL
IL
IL
V
V
V
V
V
E
X
IH
IL
IL
IL
IL
V
V
V
V
V
G
X
IH
IH
IL
IL
IL
V
V
V
V
V
G
VIH.
X
IH
IH
IL
IL
IL
V
V
V
V
V
IL
IH
W
X
IH
IH
IH
IH
IL
(1)
(1)
V
V
V
V
V
W
X
IH
IH
IH
IH
IL
Cell address
Command address
X
X
A0 = V
Others V
A0 = V
Others V
ID
to be applied to some pins.
Cell address
Command address
X
X
A0 = V
Others V
A0 = V
Others V
DQ15A–1, A0-A18
Address Inputs
IL
IH
, A1 = V
, A1 = V
IL
IL
or V
or V
IL
IH
Address Inputs
, A1 = V
, A1 = V
IL
IL
IH
IH
or V
or V
A0-A18
IL
IL
, A9 = V
, A9 = V
IH
IH
IL
IL
, A9 = V
, A9 = V
Table 2: Bus operations, BYTE =
ID
ID
,
,
DQ14-DQ8
ID
ID
,
,
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
Data Inputs/Outputs
22ECh (M29F800DT)
2258h (M29F800DB)
Data Output
ECh (M29F800DT)
58h (M29F800DB)
Data Input
Bus operations
0020h
Data Output
Hi-Z
Hi-Z
Data Input
DQ7-DQ0
Hi-Z
Hi-Z
20h
15/53
VIL,