參數(shù)資料
型號(hào)： M29F400BT90N6E
廠商： 意法半導(dǎo)體
英文描述： 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
中文描述： 4兆位（512KB的x8或256Kb的x16插槽，引導(dǎo)塊）單電源閃存
文件頁(yè)數(shù)： 11/40頁(yè)
文件大?。?/td> 215K
代理商： M29F400BT90N6E
M29F400BT, M29F400BB
Signal descriptions
11/40
2.7
Write Enable (W)
The Write Enable, W, controls the Bus Write operation of the memory’s Command Interface.
2.8
Reset/Block Temporary Unprotect (RP)
The Reset/Block Temporary Unprotect pin can be used to apply a Hardware Reset to the
memory or to temporarily unprotect all Blocks that have been protected.
A Hardware Reset is achieved by holding Reset/Block Temporary Unprotect Low, V
IL
, for at
least t
PLPX
. After Reset/Block Temporary Unprotect goes High, V
IH
, the memory will be
ready for Bus Read and Bus Write operations after t
PHEL
or t
RHEL
, whichever occurs last.
See the Ready/Busy Output section,
Table 15.
and
Figure 11.
, Reset/Temporary Unprotect
AC Characteristics for more details.
Holding RP at V
ID
will temporarily unprotect the protected Blocks in the memory. Program
and Erase operations on all blocks will be possible. The transition from V
IH
to V
ID
must be
slower than t
PHPHH
.
2.9
Ready/Busy output (RB)
The Ready/Busy pin is an open-drain output that can be used to identify when the memory
array can be read. Ready/Busy is high-impedance during Read mode, Auto Select mode
and Erase Suspend mode.
After a Hardware Reset, Bus Read and Bus Write operations cannot begin until Ready/Busy
becomes high-impedance. See
Table 15.
and
Figure 11.
, Reset/Temporary Unprotect AC
Characteristics.
During Program or Erase operations Ready/Busy is Low, V
OL
. Ready/Busy will remain Low
during Read/Reset commands or Hardware Resets until the memory is ready to enter Read
mode.
The use of an open-drain output allows the Ready/Busy pins from several memories to be
connected to a single pull-up resistor. A Low will then indicate that one, or more, of the
memories is busy.
2.10
Byte/Word organization select (BYTE)
The Byte/Word Organization Select pin is used to switch between the 8-bit and 16-bit Bus
modes of the memory. When Byte/Word Organization Select is Low, V
IL
, the memory is in 8-
bit mode, when it is High, V
IH
, the memory is in 16-bit mode.
相關(guān)PDF資料
PDF描述
M29F400BT90N6F 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
M29F400BT90M1E 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
M29F400BT90M1F 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
M29F400BT90M3E 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
M29F400BT90M3F 4 Mbit (512Kb x8 or 256Kb x16, Boot Block) single supply Flash memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M29F400BT90N6T 功能描述:閃存 512Kx8 or 256Kx16 90 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線(xiàn)寬度:1 bit 存儲(chǔ)類(lèi)型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類(lèi)型: 接口類(lèi)型:SPI 訪(fǎng)問(wèn)時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
M29F400FB55D11 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Gel-pak, waffle pack, wafer, diced wafer on film
M29F400FB55M32 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Trays
M29F400FB55M3E2 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 55NS 44SO
M29F400FB55M3F2 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE 5V - Tape and Reel
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