Important Notes and Warnings ......................................................................................................................... 6
Signal Descriptions ........................................................................................................................................... 9
Operating Features ......................................................................................................................................... 12
Sharing the overhead of modifying data ...................................................................................................... 12
An easy way to modify data ......................................................................................................................... 12
A fast way to modify data ............................................................................................................................ 12
Polling during a Write, Program, or Erase Cycle ............................................................................................ 13
Active Power, Standby Power, and Deep Power-Down .................................................................................. 13
Status Register ............................................................................................................................................ 13
Command Set Overview ................................................................................................................................. 19
READ STATUS REGISTER ................................................................................................................................ 24
WIP Bit ...................................................................................................................................................... 24
WEL Bit ...................................................................................................................................................... 24
SRWD Bit ................................................................................................................................................... 25
SRWD Bit ................................................................................................................................................... 26
SRWD Bit ................................................................................................................................................... 27
WRITE STATUS REGISTER .............................................................................................................................. 28
READ DATA BYTES ......................................................................................................................................... 30
READ DATA BYTES at HIGHER SPEED ............................................................................................................ 31
PAGE PROGRAM ............................................................................................................................................ 36
WRITE to LOCK REGISTER ............................................................................................................................. 38
DEEP POWER-DOWN ..................................................................................................................................... 45
RELEASE from DEEP POWER-DOWN .............................................................................................................. 46
Power-Up and Power-Down ............................................................................................................................ 47
Initial Delivery State ....................................................................................................................................... 49
Maximum Ratings and Operating Conditions .................................................................................................. 50
DC Parameters ............................................................................................................................................... 51
AC Characteristics .......................................................................................................................................... 52
Package Information ...................................................................................................................................... 58
Device Ordering Information .......................................................................................................................... 60
Revision History ............................................................................................................................................. 62
PDF: 09005aef845660f0
m25pe40.pdf - Rev. D 1/18 EN
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Rev. D – 1/2018 ...........................................................................................................................................
Rev. C – 3/2013 ...........................................................................................................................................
Rev. B – 11/2012 .........................................................................................................................................
Rev. A – 09/2012 ..........................................................................................................................................
62
62
62
62
PDF: 09005aef845660f0
m25pe40.pdf - Rev. D 1/18 EN
3
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Figure 9: READ STATUS REGISTER Command Sequence ................................................................................ 24
Figure 10: Status Register Format ................................................................................................................... 26
Figure 11: Status Register Format ................................................................................................................... 26
Figure 12: Status Register Format ................................................................................................................... 27
Figure 13: WRITE STATUS REGISTER Command Sequence ............................................................................. 28
Figure 14: READ DATA BYTES Command Sequence ........................................................................................ 30
Figure 15: READ DATA BYTES at HIGHER SPEED Command Sequence ........................................................... 31
There have been posts before that reflect that when performing UART testing, since the UART interface on the board does not provide power to the development board, two USB cables are required, one for...
Recently, Japan's Toshiba Corporation has manufactured a 128MB output capacitor-free DRAM chip on an SOI (epitaxial silicon on insulator) wafer and is testing the chip. Toshiba reported the design an...
Although it is just a target reporting device, it is not only used for display, but also has wireless communication and human-computer interaction interface. I have never done interface development in...
The comparator of msp430, in fact, here you just need to understand a picture, two registers, and understand the working principle.
This is the logic diagram of comparator A. Comparator A consists of ...
PMOS tube knowledge. When the gate-source voltage VGS difference is -0.4V, the transistor will conduct.
And if S=2.8V, then G can be turned on when it is less than or equal to 2.4V, and can be turned ...
OFweek Cup 2022 China
Robot
Industry Annual Awards (abbreviated as OFweek Robot Awards 2022) is jointly organized by OFweek, China's high-tech industry portal, and its authoritative robo...[Details]
1. First, let’s popularize what Cache is Due to the limitation of program access, a type of high-speed, small-capacity memory is set between the main memory and the general registers of the CPU. Part...[Details]
Application areas: industrial automation, industrial vision, motion control
Challenge: Use the combination of LabVIEW+Vision+Motion to quickly develop a commercial-oriented fully automatic disp...[Details]
The 3rd Car-ele Japan International Automotive Electronics Show
Dates: 2011/01/19 (Wed.) ~ 01/21 (Fri.)
Sunon Booth No.: East Hall 3
As the proportion of in-vehicle electronic applications incr...[Details]
As embedded technology continues to mature, writing device drivers for special circuits based on embedded systems is becoming more and more popular. Among various embedded operating systems, embedd...[Details]
The Android 11 Beta version is now online. In addition to Google Pixel models, the Xiaomi 10 series can also be upgraded. On July 15, MIUI 12 customized based on Android 11 was quietly launc...[Details]
Children's Day is coming soon. Have you not chosen a gift for your little prince or princess? A children's smart watch would be a good choice. As an important branch of smart wearable devices, chil...[Details]
Preface
Many mobile operators are unable to test their antennas due to time and cost constraints in performing far-field testing of base station antennas. It is not feasible to test the far field...[Details]
The power supply used in the portable B-ultrasound system is relatively complex. The power supply of the external adapter and battery must be converted to the voltage required by the system thro...[Details]
RF signal analyzers with frequencies up to 14 GHz offer industry-leading performance, but they are not only in short supply, but also bulky, expensive, and slow. The NI PXIe-5665 high-performance RF ...[Details]
Introduction to AVR IO ports and the concept of registers
1. What is a "register"
Registers are special units in RAM that map the special functions of on-chip peripherals.
2. What is "IO...[Details]
I am used to searching the Internet when I encounter problems in debugging programs. I can often get inspiration from the records or replies of experts. I didn’t expect that one day I would start wri...[Details]
Apple Watch Series 3, also known as Apple Watch S3, was released on September 13, 2017. Its appearance and size remain the same as the previous generation, but it has an additional red crown. Repo...[Details]
Apple's intraday gains expanded to more than 2%, continuing to set a new intraday record high of $340.67, with a market value of $1.476 trillion. From March 23 to June 5, local time, Apple's market v...[Details]
Analysis of LCD working principle:
1. LCD hardware architecture:
LCD hardware system: You can see that the LCD controller is in the ARM processor, and the LCD screen and p...[Details]