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參數(shù)資料
| 型號(hào)： | M25P20-VMP6 |
| 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(yè)數(shù)： | 9/39頁(yè) |
| 文件大?。?/td> | 230K |
| 代理商： | M25P20-VMP6 |
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M25P20
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 M25P20 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 (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, in co-operation
with the Status Register Write Disable
(SRWD) bit, allows the Block Protect (BP1,
BP0) bits and Status Register Write Disable
(SRWD) bit to be write-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, both Block Protect (BP1, BP0) are 0.
Status Register
Content
Memory Content
BP1 Bit
BP0 Bit
Protected Area
Unprotected Area
0
0
none
All sectors
1
(four sectors: 0, 1, 2 and 3)
0
1
Upper quarter (Sector 3)
Lower three-quarters (three sectors: 0 to 2)
1
0
Upper half (two sectors: 2 and 3)
Lower half (Sectors 0 and 1)
1
1
All sectors (four sectors: 0, 1, 2 and 3)
none
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| M25P40-VMN3G | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMN3P | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMN3T | 4 Mbit Uniform Sector, Serial Flash Memory |
| M25P40-VMN3TG | 4 Mbit Uniform Sector, Serial Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M25P20VMP6G | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface |
| M25P20-VMP6G | 功能描述:閃存 2 Mbit Lo Vltg Seral 閃存 Memory RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(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 |
| M25P20-VMP6G/X | 制造商:NUMONYX 制造商全稱:Numonyx B.V 功能描述:2 Mbit, low voltage, Serial Flash memory with 50MHz SPI bus interface |
| M25P20-VMP6GB | 制造商:Micron Technology Inc 功能描述:NOR Flash Serial-SPI 3.3V 2Mbit 256K x 8bit 8ns 8-Pin VFQFPN EP Tray 制造商:Micron Technology Inc 功能描述:SERIAL NOR - Trays 制造商:Micron Technology Inc 功能描述:FLASH SERIAL 2MBIT 8VPDFN 制造商:Micron Technology Inc 功能描述:FLASH, SERIAL, 2MBIT, 8VPDFN 制造商:Micron Technology Inc 功能描述:FLASH, SERIAL, 2MBIT, 8VPDFN; Memory Type:Flash - NOR; Memory Size:2Mbit; Memory Configuration:256K x 8bit; Supply Voltage Min:2.3V; Supply Voltage Max:3.6V; Memory Case Style:DFN; No. of Pins:8; Clock Frequency:75MHz; Interface ;RoHS Compliant: Yes |
| M25P20VMP6P | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface |
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