Knowledge

SD card register and function

OCR (operating conditions register): the 32-bit operating conditions register mainly stores the VDD voltage range, and the SD card operating voltage range is 2 ~ 3.6V.

Main pins and functions of SD card

CLK: clock signal. The controller transmits one command bit or data bit in each clock cycle. Under the default speed mode of the SD bus, the frequency can vary from 0 to 25MHz.

Introduction to SD card equipment

SD card (secure digital memory card) is a multi-functional memory card jointly developed by Panasonic, Toshiba and SanDisk on the basis of mmcmuti mediacard in August 1999.

What is a TF card

​TF card, also known as microSD, is a very small flash memory card invented by SanDisk. This card is mainly used in mobile phones, but because of its small size, with the increasing capacity, it is gr

Advantages of nano memory

1.Fast reading and writing speed: the conversion time between the two states of the electromechanical bistable film is very short, about a few nanoseconds (US), and there is the potential to further s

The use of Nanotechnology

Nanotechnology is a science and technology that uses a single atom and molecule to make substances, and studies the properties and applications of materials with a structure size in the range of 0.1 t

Principle of nano memory

Nano ram is a non-volatile memory technology of nantero. The principle is to distribute carbon nanotubes on a sheet-like substrate. In theory, the small-size cloud of carbon nanotubes has a very high

Chip is indispensable in information society

With the rapid development of information technology, chip applications have been extended to every corner of society and integrated into all aspects of life.

Development process of application specific integrated circuit

The purpose of functional design is to prepare for circuit design, apply system functions to system realization, and facilitate hierarchical design according to the level of system, circuit and elemen