參數(shù)資料
型號(hào)： MBM29LV400B
廠商： Fujitsu Limited
英文描述： CMOS 4M (512K ×8/256K×16) Falsh Memory(512K ×8/256K×16位 單5V 電源電壓閃速存儲(chǔ)器)
中文描述： 的CMOS 4分（為512k × 8/256K × 16）Falsh存儲(chǔ)器（為512k × 8/256K × 16位單5V的電源電壓閃速存儲(chǔ)器）
文件頁數(shù)： 12/51頁
文件大?。?/td> 334K
代理商： MBM29LV400B
12
MBM29LV400T/MBM29LV400B
*1: A
-1
is for Byte mode.
*2: Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses.
(B): Byte mode
(W): Word mode
Write
Device erasure and programming are accomplished via the command register. The contents of the register serve
as inputs to the internal state machine. The state machine outputs dictate the function of the device.
The command register itself does not occupy any addressable memory location. The register is a latch used to
store the commands, along with the address and data information needed to execute the command. The
command register is written by bringing WE to V
IL
, while CE is at V
IL
and OE is at V
IH
. Addresses are latched on
the falling edge of WE or CE, whichever happens later; while data is latched on the rising edge of WE or CE,
whichever happens first. Standard microprocessor write timings are used.
Refer to AC Write Characteristics and the Erase/Programming Waveforms for specific timing parameters.
Sector Protection
The MBM29LV400T/400B feature hardware sector protection. This feature will disable both program and erase
operations in any number of sectors (0 through 10). The sector protection feature is enabled using programming
equipment at the user’s site. The devices are shipped with all sectors unprotected. Alternatively, Fujitsu may
program and protect sectors in the factory prior to shipping the device.
To activate this mode, the programming equipment must force V
ID
on address pin A
9
and control pin OE, (suggest
V
ID
= 11.5 V), CE = V
IL
, and A
6
= V
IL
. The sector addresses (A
17
, A
16
, A
15
, A
14
, A
13
, and A
12
) should be set to the
Table 4. 1 MBM29LV400T/400B Sector Protection Verify Autoselect Codes
Type
A
12
to A
17
A
6
A
1
A
0
A
-1*1
Code
(HEX)
Manufacturer’s Code
X
V
IL
V
IL
V
IL
V
IL
04H
MBM29LV400
Device
Code
MBM29LV400T
Byte
X
V
IL
V
IL
V
IH
V
IL
B9H
Word
X
22B9H
MBM29LV400B
Byte
X
V
IL
V
IL
V
IH
V
IL
BAH
Word
X
22BAH
Sector Protection
Sector
Addresses
V
IL
V
IH
V
IL
V
IL
01H
*2
Table 4. 2 Expanded Autoselect Code Table
Type
Code DQ
15
DQ
14
DQ
13
DQ
12
DQ
11
DQ
10
DQ
9
DQ
8
DQ
7
DQ
6
DQ
5
DQ
4
DQ
3
DQ
2
DQ
1
DQ
0
Manufacturer’s Code
04H A
-1
/0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
MBM29LV400
Device
Code
MBM29LV400T
(B)
B9H A
-1
HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z
1
0
1
1
1
0
0
1
(W) 22B9H
0
0
1
0
0
0
1
0
1
0
1
1
1
0
0
1
MBM29LV400B
(B)
BAH A
-1
HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z
1
0
1
1
1
0
1
0
(W) 22BAH
0
0
1
0
0
0
1
0
1
0
1
1
1
0
1
0
Sector Protection
01H A
-1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
相關(guān)PDF資料
PDF描述
MBM29LV400T CMOS 4M (512K ×8/256K×16) Falsh Memory(512K ×8/256K×16位 單5V 電源電壓閃速存儲(chǔ)器)
MBM29LV400TC-90 4M (512K X 8/256K X 16) BIT
MBM29LV400TC-90PBT 4M (512K X 8/256K X 16) BIT
MBM29LV400TC-90PF 4M (512K X 8/256K X 16) BIT
MBM29LV400TC-90PFTN 4M (512K X 8/256K X 16) BIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MBM29LV400BC 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4M (512K X 8/256K X 16) BIT
MBM29LV400BC-12 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4M (512K X 8/256K X 16) BIT
MBM29LV400BC-12PBT 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4M (512K X 8/256K X 16) BIT
MBM29LV400BC-12PCV 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4M (512K X 8/256K X 16) BIT
MBM29LV400BC-12PF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:4M (512K X 8/256K X 16) BIT
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