參數(shù)資料
型號(hào): M25P40-VMN3P
廠(chǎng)商: 意法半導(dǎo)體
元件分類(lèi): DRAM
英文描述: 4 Mbit Uniform Sector, Serial Flash Memory
中文描述: 4兆位統(tǒng)一部門(mén),串行閃存
文件頁(yè)數(shù): 19/40頁(yè)
文件大小: 232K
代理商: M25P40-VMN3P
19/40
M25P40
Read Data Bytes at Higher Speed
(FAST_READ)
The device is first selected by driving Chip Select
(S) Low. The instruction code for the Read Data
Bytes at Higher Speed (FAST_READ) instruction
is followed by a 3-byte address (A23-A0) and a
dummy byte, each bit being latched-in during the
rising edge of Serial Clock (C). Then the memory
contents, at that address, is shifted out on Serial
Data Output (Q), each bit being shifted out, at a
maximum frequency f
C
, during the falling edge of
Serial Clock (C).
The instruction sequence is shown in
Figure 13.
.
The first byte addressed can be at any location.
The address is automatically incremented to the
next higher address after each byte of data is shift-
ed out. The whole memory can, therefore, be read
with a single Read Data Bytes at Higher Speed
(FAST_READ) instruction. When the highest ad-
dress is reached, the address counter rolls over to
000000h, allowing the read sequence to be contin-
ued indefinitely.
The Read Data Bytes at Higher Speed
(FAST_READ) instruction is terminated by driving
Chip Select (S) High. Chip Select (S) can be driv-
en High at any time during data output. Any Read
Data Bytes at Higher Speed (FAST_READ) in-
struction, while an Erase, Program or Write cycle
is in progress, is rejected without having any ef-
fects on the cycle that is in progress.
Figure 13. Read Data Bytes at Higher Speed (FAST_READ)
Instruction Sequence and Data-Out
Sequence
Note: 1. Address bits A23 to A19 are Don’t Care.
C
D
AI04006
S
Q
23
2
1
3
4
5
6
7
8
9 10
28 29 30 31
22 21
3
2
1
0
High Impedance
Instruction
24 BIT ADDRESS
0
C
D
S
Q
32 33 34
36 37 38 39 40 41 42 43 44 45 46
7
6
5
4
3
2
0
1
DATA OUT 1
Dummy Byte
MSB
7
6
5
4
3
2
1
0
DATA OUT 2
MSB
MSB
7
47
7
6
5
4
3
2
0
1
35
相關(guān)PDF資料
PDF描述
M25P40-VMN3T 4 Mbit Uniform Sector, Serial Flash Memory
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M25P40-VMN3P/X 制造商:Micron Technology Inc 功能描述:
M25P40-VMN3PB 功能描述:IC FLASH 4MBIT 75MHZ 8SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> 存儲(chǔ)器 系列:Forté™ 標(biāo)準(zhǔn)包裝:2,000 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類(lèi)型:SRAM - 異步 存儲(chǔ)容量:256K (32K x 8) 速度:15ns 接口:并聯(lián) 電源電壓:3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:28-TSSOP(0.465",11.8mm 寬) 供應(yīng)商設(shè)備封裝:28-TSOP 包裝:帶卷 (TR) 其它名稱(chēng):71V256SA15PZGI8
M25P40-VMN3Px 制造商:MICRON 制造商全稱(chēng):Micron Technology 功能描述:Micron M25P40 Serial Flash Embedded Memory
M25P40VMN3T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
M25P40-VMN3T 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:4 Mbit, Low Voltage, Serial Flash Memory With 40MHz SPI Bus Interface