- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄359049 > M29W512B90K1T (意法半導體) 512 Kbit 64Kb x8, Bulk Low Voltage Single Supply Flash Memory PDF資料下載
參數(shù)資料
| 型號： | M29W512B90K1T |
| 廠商： | 意法半導體 |
| 英文描述： | 512 Kbit 64Kb x8, Bulk Low Voltage Single Supply Flash Memory |
| 中文描述： | 512千位64Kb的× 8，大量低電壓單電源閃存 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大小： | 139K |
| 代理商： | M29W512B90K1T |
M29W512B
4/18
Table 3. Bus Operations
Note: X = V
IL
or V
IH
.
Operation
E
G
W
Address Inputs
Data
Inputs/Outputs
Bus Read
V
IL
V
IL
V
IH
Cell Address
Data Output
Bus Write
V
IL
V
IH
V
IL
Command Address
Data Input
Output Disable
X
V
IH
V
IH
X
Hi-Z
Standby
V
IH
X
X
X
Hi-Z
Read Manufacturer
Code
V
IL
V
IL
V
IH
A0 = V
IL
, A1 = V
IL
, A9 = V
ID
,
Others V
IL
or V
IH
20h
Read Device Code
V
IL
V
IL
V
IH
A0 = V
IH
, A1 = V
IL
, A9 = V
ID
,
Others V
IL
or V
IH
27h
BUS OPERATIONS
There are five standard bus operations that control
the device. These are Bus Read, Bus Write, Out-
put Disable, Standby and Automatic Standby. See
Table 3, Bus Operations, for a summary. Typically
glitches of less than 5ns are ignored by the mem-
ory and do not affect bus operations.
Bus Read.
Bus Read operations read from the
memory cells, or specific registers in the Com-
mand Interface. A valid Bus Read operation in-
volves setting the desired address on the Address
Inputs, applying a Low signal, V
IL
, to Chip Enable
and Output Enable and keeping Write Enable
High, V
IH
. The Data Inputs/Outputs will output the
value, see Figure 8, Read Mode AC Waveforms,
and Table 10, Read AC Characteristics, for details
of when the output becomes valid.
Bus Write.
Bus Write operations write to the
Command Interface. A valid Bus Write operation
begins by setting the desired address on the Ad-
dress Inputs. The Address Inputs are latched by
the Command Interface on the falling edge of Chip
Enable or Write Enable, whichever occurs last.
The Data Inputs/Outputs are latched by the Com-
mand Interface on the rising edge of Chip Enable
or Write Enable, whichever occurs first. Output En-
able must remain High, V
IH
, during the whole Bus
Write operation. See Figures 9 and 10, Write AC
Waveforms, and Tables 11 and 12, Write AC
Characteristics, for details of the timing require-
ments.
Output Disable.
The Data Inputs/Outputs are in
the high impedance state when Output Enable is
High, V
IH
.
Standby.
When Chip Enable is High, V
IH
, the
memory enters Standby mode and the Data In-
puts/Outputs pins are placed in the high-imped-
ance state. To reduce the Supply Current to the
Standby Supply Current, I
CC2
, Chip Enable should
be held within V
CC
± 0.2V. For the Standby current
level see Table 9, DC Characteristics.
During program or erase operations the memory
will continue to use the Program/Erase Supply
Current, I
CC3
, for Program or Erase operations un-
til the operation completes.
Automatic Standby.
If CMOS levels (V
CC
± 0.2V)
are used to drive the bus and the bus is inactive for
150ns or more the memory enters Automatic
Standby where the internal Supply Current is re-
duced to the Standby Supply Current, I
CC2
. The
Data Inputs/Outputs will still output data if a Bus
Read operation is in progress.
Special Bus Operations
Additional bus operations can be performed to
read the Electronic Signature. These bus opera-
tions are intended for use by programming equip-
ment and are not usually used in applications.
They require V
ID
to be applied to some pins.
Electronic Signature.
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 Table 3, Bus Operations.
相關PDF資料 |
PDF描述 |
|---|---|
| M29W640DB70ZA1T | 64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory |
| M29W640DB70ZA6F | 64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory |
| M29W640DB70ZA6T | 64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory |
| M29W640DB90N1E | 64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory |
| M29W640DB90N1F | 64 Mbit 8Mb x8 or 4Mb x16, Boot Block 3V Supply Flash Memory |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M29W640DB90N6 | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90N6E | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90N6F | 功能描述:閃存 STD FLASH RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90ZA6 | 功能描述:閃存 8Mx8 or 4Mx16 90ns RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時類型: 接口類型:SPI 訪問時間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M29W640DB90ZA6T | 制造商:Micron Technology Inc 功能描述:FLASH PARALLEL 3V/3.3V 64MBIT 8MX8/4MX16 90NS 63TFBGA - Tape and Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。