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ISSI, Integrated Silicon Solution Inc IS25LQ040B-JNLE-TR Environmental and export classification status description

The ISSI® IS25LQ040B-JNLE-TR is a 4-Mbit (512K x 8) Serial NOR Flash memory. It operates at a low voltage and provides reliable data storage. This device follows the Serial Peripheral Interface (SPI) protocol, which allows for high-speed data transfer with a simple interface. Functions - Data Storage: Stores non-volatile data in a compact, efficient format. - Read/Write/Erase: Supports various operations like reading, writing, and erasing data blocks. - SPI Interface: Communication happens over a 4-pin SPI interface, enabling fast data transfers. - Low Power Consumption: Designed to operate efficiently within portable devices with limited power resources. Applications - Consumer Electronics: Used in devices such as smartphones, tablets, and digital cameras for firmware and application code storage. - Industrial Applications: Employs in programmable devices requiring a reliable memory storage solution in harsh conditions. - Automotive: Can be used in infotainment systems, and other vehicle electronic control units for data retention. - IoT Devices: Suitable for Internet of Things applications to store configuration settings or firmware. Alternative Parts - Winbond W25Q40JW: Another 4Mb SPI Flash memory. - Micron MT25QL040: Similar specifications with the same Serial Flash capabilities. - Adesto Technologies AT25DF041A: A 4Mb SPI NOR Flash memory alternative. - Microchip SST26VF040B: Another comparable NOR Flash device. Embedded Modules - Development Boards: Many Arduino and Raspberry Pi boards have modules that utilize SPI NOR Flash for storage. - Reference Designs: Various manufacturers provide kits that include the IS25LQ040B for prototyping. Sample Q&A 1. Q: What is the main advantage of using the ISSI® IS25LQ040B-JNLE-TR in embedded systems? A: The main advantage is its ability to store non-volatile data while consuming low power, making it ideal for battery-operated devices. 2. Q: Can the ISSI IS25LQ040B be used in automotive applications? A: Yes, it is suitable for automotive applications where reliability is crucial, and it can store firmware and other critical data. 3. Q: What is the interface used by the ISSI IS25LQ040B for communication? A: The device uses a Serial Peripheral Interface (SPI) for high-speed data communication. 4. Q: How does the IS25LQ040B compare with other NOR Flash memory devices? A: It is comparable in functionality to other 4Mb NOR Flash devices like Winbond and Micron offerings, typically offering similar read/write speeds and features. 5. Q: Is there a specific programming process associated with the IS25LQ040B when used in devices? A: Yes, programming involves sending commands over the SPI interface to read, write, or erase memory sectors in accordance with the device's command set.