GD25LD05CEIGR

Memory

The GD25LD05CEIGR is an ultra-low density, single power supply, SPI compatible serial Flash memory device. It is designed to replace the traditional Parallel Flash memory and is intended for applications that benefit from using a low power Flash memory solution, such as consumer, industrial, and automotive electronics. The GD25LD05CEIGR is especially well suited for expanding storage capacity or providing non-volatile storage in embedded systems.

Application Field

The GD25LD05CEIGR is suitable for applications such as consumer and automobile electronics, IoT, and industrial automation that require compact, reliable flash memory with extended temperature options. For consumer electronics, the device can be used as a code storage devices for operating systems, firmware, and other application specific data. It is also suitable for data storage applications and storing non-volatile system data, like configuration information. In addition, it is used for automotive applications where a reliable, single power supply flash memory solution is required.

Working Principle

The GD25LD05CEIGR is a SPI compatible serial Flash memory device. It supports both 3-wire and 4-wire serial interfaces which makes it suitable for a wide range of applications. The SPI interface consists of four control signals: chip select (CE#), clock input (CLK), data input/output (I/O) and write latch (WR#).

The read operation of the GD25LD05CEIGR is simple and straightforward. After the device is selected (by CE#) and the address is written, the data can be read by clocking in the address and then reading the data at the rising edge of the CLK signal. It also supports a high transfer speed of up to 80 MHz.

The write operation of the GD25LD05CEIGR is slightly more complicated as it supports both Page Write and Block Write mode. The Page Write mode supports programming up to 256 bytes of data in a single transaction. The Block Write allows up to 128 bytes to be programmed at once and it is also faster than the Page Write mode as only two commands are needed to program the data.

The GD25LD05CEIGR also supports the sector-level erase command which erases the memory cells in specific sectors. It supports two types of Sector Erase commands: 4Kbyte sector erase and 32Kbyte sector erase. Additionally, it supports a Chip Erase command which erases the entire memory. It is important to note that all erase commands require the device to be write enabled before these commands can be executed.

Overall, the GD25LD05CEIGR is a low cost, single power SPI serial Flash memory which is suitable for applications that require a reliable, low power and reliable serial flash device with extended temperature options. It provides cost effective, non-volatile storage for embedded systems, and supports both 3-wire and 4-wire interfaces with up to 80 MHz transfer speed.