GD25Q40CEIGR

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Memory is a fundamental building block of embedded systems and is of utmost importance. As the industry continues to innovate and move forward, embedded memory products must keep up. The GD25Q40CEIGR is an embedded 4Mb NOR Flash memory IC chip with high performance, low power consumption and industry leading use times, perfect for use in demanding applications. This article will discuss the application fields and working principles of the GD25Q40CEIGR.

Application Fields

The GD25Q40CEIGR is best suited for applications that require extended power down criteria and that necessitate long data retention and minimize power. Typical applications of the GD25Q40CEIGR include consumer electronics such as digital cameras, digital video recorders, digital broadcast and digital music players, automotive applications such as car audio systems, video systems and gaming machines, home appliances such as toy game consoles and home audio systems, personal computers, portable devices such as personal digital assistants, PDAs, personal information machines and industrial systems.

Working Principle

The GD25Q40CEIGR is a 4Mb NOR Flash memory IC chip that works in a serial interface with a four-byte address based command configuration. The device consists of a single uniform block of 4,194,304-bit Flash memory divided into 512 pages of 64 bytes each. The single bit per cell Flash memory consists of individually erasable segments called blocks, in which each block can be independently erased.

The chip also includes a reliable controller that provides additional features to ensure read-write operations are properly executed. The controller includes an array of internal registers that store information such as flag status/status register register and the program/erase control block. The controller also provides address and access control and an error correction code that is integrated with the command handling subroutine.

The operation of the GD25Q40CEIGR is based on a serial interface and command sequence operation with two protocol layers. A transceiver layer is responsible for the data transmission from the device to the host system and vice versa. The second layer is the command layer that controls the read and write to/from the memory. The chip also features a broad set of enhanced protection features such as program/erase suspend, read-identify, write protect, status register clear, write protect register and device reset, among others.

The GD25Q40CEIGR is an ideal and compact choice for high performance embedded solutions. With its low power consumption, program/erase suspend capability and temperature range of -40°C to +85°C, the GD25Q40CEIGR is a powerful and attractive solution to meet the demands of modern embedded systems and consumer applications.

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