參數(shù)資料
型號(hào)： M25P40
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)： 25/51頁(yè)
文件大?。?/td> 398K
代理商： M25P40
M25P40
Instructions
25/51
6.6
Read Data Bytes (READ)
The device is first selected by driving Chip Select (S) Low. The instruction code for the Read
Data Bytes (READ) instruction is followed by a 3-byte address (A23-A0), 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
R
, during the falling edge of Serial Clock (C).
The instruction sequence is shown in
Figure 12
.
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 shifted out. The whole memory can,
therefore, be read with a single Read Data Bytes (READ) instruction. When the highest
address is reached, the address counter rolls over to 000000h, allowing the read sequence
to be continued indefinitely.
The Read Data Bytes (READ) instruction is terminated by driving Chip Select (S) High. Chip
Select (S) can be driven High at any time during data output. Any Read Data Bytes (READ)
instruction, while an Erase, Program or Write cycle is in progress, is rejected without having
any effects on the cycle that is in progress.
Figure 12.
Read Data Bytes (READ)
Instruction Sequence and Data-Out Sequence
1.
Address bits A23 to A19 are Don’t Care.
C
D
AI03748D
S
Q
23
2
1
3
4
5
6
7
8
9 10
28 29 30 31 32 33 34 35
22 21
3
2
1
0
36 37 38
7
6
5
4
3
1
7
0
High Impedance
Data Out 1
Instruction
24-Bit Address
0
MSB
MSB
2
39
Data Out 2
相關(guān)PDF資料
PDF描述
M25PE10-VMN6G 4 Mbit Uniform Sector, Serial Flash Memory
M25PE20-VMP6TP 4 Mbit Uniform Sector, Serial Flash Memory
M25PE10-VMN6P 4 Mbit Uniform Sector, Serial Flash Memory
M25PE10-VMP6G 4 Mbit Uniform Sector, Serial Flash Memory
M25PE10-VMP6P 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_07 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4 Mbit, low voltage, serial Flash memory with 50 MHz SPI bus interface
M25P40_12 制造商:MICRON 制造商全稱:Micron Technology 功能描述:Micron M25P40 Serial Flash Embedded Memory
M25P40-VMB3TPB 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel
M25P40-VMB3TPB TR 制造商:Micron Technology Inc 功能描述:IC FLASH 4MBIT 75MHZ 8UFDFPN
M25P40-VMB6TPB 制造商:Micron Technology Inc 功能描述:4MBIT SPI NOR FLASH 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE FLASH - Cut TR (SOS) 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE FLASH - Tape and Reel 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 UFDFPN EP T/R
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