IS25LQ020B-JKLE-TR

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Memory is a basic internal component in digital systems. Memory devices are wide and varied, ranging from flash memory and SRAM to DRAM. This article will focus on the characteristics and application fields of IS25LQ020B-JKLE-TR flash memory.

Characteristics

The IS25LQ020B-JKLE-TR is a 2 megabit (256 kilobyte) CMOS nonvolatile flash memory. It’s a serial peripheral interface (SPI) type with a chip enable, write enable, and data input/output signal. The fuse voltage is between 1.7V-3.6V, and the read frequency is 40Mhz with a maximum write frequency of 10Mhz. It has an unlimited number of read/write cycles and supports an erase/write cycle of 1K and 4K blocks, as well as an erase/write cycle of the entire chip.

Application Field

The IS25LQ020B-JKLE-TR is ideal for applications with small space and power considerations. These include embedded applications for firmware storage, such as automotive displays, climate control systems, GPS navigation, home audio equipment, and POS systems, as well as IoT and industrial applications.

Working Principle

The working principle of the IS25LQ020B-JKLE-TR is based on a serial communication protocol, which enables fast information transfer. A SPI bus is used to transmit data between the controller and the memory device, with data transfer taking place in 8- or 16- bit words. The memory device is accessed using three main signals; a chip select, which is used to determine which device the controller is addressing, while a write enable signal identifies the type of operation being performed. Finally, the data signal is used to read from and write to the memory device.

The IS25LQ020B-JKLE-TR is ideal for use in space and power-constrained applications due to its small size and low power requirements. Its unlimited read/write cycle and support for erase/write cycles makes it suitable for a wide range of embedded, IoT, and industrial applications. Furthermore, its use of a serial communication protocol ensures quick and reliable data transfer.

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