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參數(shù)資料
| 型號(hào)： | M25P40-VMN6P |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DRAM |
| 英文描述： | 4 Mbit Uniform Sector, Serial Flash Memory |
| 中文描述： | 4兆位統(tǒng)一部門，串行閃存 |
| 文件頁數(shù)： | 9/40頁 |
| 文件大小： | 232K |
| 代理商： | M25P40-VMN6P |
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9/40
M25P40
Protection Modes
The environments where non-volatile memory de-
vices are used can be very noisy. No SPI device
can operate correctly in the presence of excessive
noise. To help combat this, the M25P40 boasts the
following data protection mechanisms:
Power-On Reset and an internal timer (t
PUW
)
can provide protection against inadvertant
changes while the power supply is outside the
operating specification.
Program, Erase and Write Status Register
instructions are checked that they consist of a
number of clock pulses that is a multiple of
eight, before they are accepted for execution.
All instructions that modify data must be
preceded by a Write Enable (WREN)
instruction to set the Write Enable Latch
(WEL) bit . This bit is returned to its reset state
by the following events:
–
Power-up
–
Write Disable (WRDI) instruction
completion
■
■
■
–
Write Status Register (WRSR) instruction
completion
Page Program (PP) instruction completion
Sector Erase (SE) instruction completion
Bulk Erase (BE) instruction completion
The Block Protect (BP2, BP1, BP0) bits allow
part of the memory to be configured as read-
only. This is the Software Protected Mode
(SPM).
The Write Protect (W) signal allows the Block
Protect (BP2, BP1, BP0) bits and Status
Register Write Disable (SRWD) bit to be
protected. This is the Hardware Protected
Mode (HPM).
In addition to the low power consumption
feature, the Deep Power-down mode offers
extra software protection from inadvertant
Write, Program and Erase instructions, as all
instructions are ignored except one particular
instruction (the Release from Deep Power-
down instruction).
–
–
–
■
■
■
Table 2. Protected Area Sizes
Note: 1. The device is ready to accept a Bulk Erase instruction if, and only if, all Block Protect (BP2, BP1, BP0) are 0.
Status Register
Content
Memory Content
BP2
Bit
BP1
Bit
BP0
Bit
Protected Area
Unprotected Area
0
0
0
none
All sectors
1
(eight sectors: 0 to 7)
0
0
1
Upper eighth (Sector 7)
Lower seven-eighths (seven sectors: 0 to 6)
0
1
0
Upper quarter (two sectors: 6 and 7)
Lower three-quarters (six sectors: 0 to 5)
0
1
1
Upper half (four sectors: 4 to 7)
Lower half (four sectors: 0 to 3)
1
0
0
All sectors (eight sectors: 0 to 7)
none
1
0
1
All sectors (eight sectors: 0 to 7)
none
1
1
0
All sectors (eight sectors: 0 to 7)
none
1
1
1
All sectors (eight sectors: 0 to 7)
none
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M25P40-VMN6TG | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMN6TP | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMP3 | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMP3G | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMP3P | 4 Mbit Uniform Sector, Serial Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M25P40-VMN6P/X | 制造商:NUMONYX 制造商全稱:Numonyx B.V 功能描述:4 Mbit, low voltage, serial Flash memory with 50 MHz SPI bus interface |
| M25P40-VMN6P_NUD | 制造商:Micron Technology Inc 功能描述: |
| M25P40-VMN6PB | 制造商:Micron Technology Inc 功能描述:NOR Flash Serial-SPI 2.5V/3.3V 4Mbit 512K x 8bit 8ns 8-Pin SO N Tube 制造商:Micron Technology Inc 功能描述:SERIAL FLASH 4MEG (M25P40) SO 0SO 08 .15 JEDEC (110NM) - Trays 制造商:Micron Technology Inc 功能描述:4MBIT SPI NOR FLASH 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 75MHZ 8SOIC 制造商:Micron Technology Inc 功能描述:FLASH SERIAL 4MBIT 8SOIC 制造商:Micron Technology Inc 功能描述:FLASH, SERIAL, 4MBIT, 8SOIC 制造商:Micron Technology Inc 功能描述:FLASH, SERIAL, 4MBIT, 8SOIC; Memory Type:Flash - NOR; Memory Size:4Mbit; Memory Configuration:512K x 8bit; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Memory Case Style:NSOIC; No. of Pins:8; Clock Frequency:75MHz; Interface ;RoHS Compliant: Yes 制造商:Micron Technology 功能描述:NOR Flash Serial-SPI 2.5V/3.3V 4Mbit 512K x 8bit 8ns 8-Pin SO N Tube |
| M25P40-VMN6PBA | 制造商:Micron Technology Inc 功能描述:NOR Flash Serial-SPI 2.5V/3.3V 4Mbit 512K x 8bit 8ns 8-Pin SO N Tray 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 4MX1 PBF SOIC 3.0V |
| M25P40-VMN6Pxx | 制造商:MICRON 制造商全稱:Micron Technology 功能描述:Micron M25P40 Serial Flash Embedded Memory |
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