- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377942 > MBM29F017A-70 (Fujitsu Limited) 16M (2M X 8) BIT PDF資料下載
參數(shù)資料
| 型號： | MBM29F017A-70 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16M (2M X 8) BIT |
| 中文描述： | 1,600（2米× 8）位 |
| 文件頁數(shù)： | 13/47頁 |
| 文件大?。?/td> | 469K |
| 代理商： | MBM29F017A-70 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁
13
MBM29F017A
-70/-90/-12
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 Group Protection
The MBM29F017A features hardware sector group protection. This feature will disable both program and erase
operations in any combination of eight sector groups of memory. Each sector group consists of four adjacent
sectors grouped in the following pattern: sectors 0-3, 4-7, 8-11, 12-15, 16-19, 20-23, 24-27, and 28-31 (see
Table 5). The sector group protection feature is enabled using programming equipment at the user's site. The
device is shipped with all sector groups unprotected.
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
. The sector addresses (A
20
, A
19
, and A
18
) should be set to the sector to be protected.
Tables 4 and 5 define the sector address for each of the thirty two (32) individual sectors, and the sector group
address for each of the eight (8) individual group sectors. Programming of the protection circuitry begins on the
falling edge of the WE pulse and is terminated with the rising edge of the same. Sector addresses must be held
constant during the WE pulse. Refer to figures 14 and 21 for sector protection waveforms and algorithm.
To verify programming of the protection circuitry, the programming equipment must force V
ID
on address pin A
9
with CE and OE at V
IL
and WE at V
IH
. Scanning the sector addresses (A
20
, A
19
, and A
18
) while (A
6
, A
1
, A
0
) = (0,
1, 0) will produce a logical “1” code at device output DQ
0
for a protected sector. Otherwise the device will produce
00H for unprotected sector. In this mode, the lower order addresses, except for A
0
, A
1
, and A
6
are don’t care.
Address locations with A
1
= V
IL
are reserved for Autoselect manufacturer and device codes.
It is also possible to determine if a sector group is protected in the system by writing an Autoselect command.
Performing a read operation at the address location XX02H, where the higher order addresses (A
20
, A
19
, and
A
18
) are the desired sector group address will produce a logical “1” at DQ
0
for a protected sector group. See
Table 3 for Autoselect codes.
Table 5 Sector Group Addresses
A
20
A
19
A
18
Sectors
SGA0
0
0
0
SA0 to SA3
SGA1
0
0
1
SA4 to SA7
SGA2
0
1
0
SA8 to SA11
SGA3
0
1
1
SA12 to SA15
SGA4
1
0
0
SA16 to SA19
SGA5
1
0
1
SA20 to SA23
SGA6
1
1
0
SA24 to SA27
SGA7
1
1
1
SA28 to SA31
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MBM29F017A-90 | 16M (2M X 8) BIT |
| MBM29F033C | 32M (4M X 8) BIT |
| MBM29F033C-12PTR | 32M (4M X 8) BIT |
| MBM29F033C-70 | 32M (4M X 8) BIT |
| MBM29F033C-70PTN | 32M (4M X 8) BIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MBM29F017A-70PFTN | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16M (2M X 8) BIT |
| MBM29F017A-70PFTR | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16M (2M X 8) BIT |
| MBM29F017A-70PNS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:FLASH MEMORY CMOS 16M (2M x 8) BIT |
| MBM29F017A-90 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:FLASH MEMORY CMOS 16M (2M x 8) BIT |
| MBM29F017A-90PFTN | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16M (2M X 8) BIT |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。