FM27C256Q120

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Memory is a fundamental component of all computers, and its role is critical in keeping information accessible and coherent. Many memory chips are used to store and access data, but one of the most advanced and versatile is the FM27C256Q120. This chip is used in a variety of computing application fields, from general data processing and coding to gaming and UI design. Understanding how the device works and what types of applications it is suited for is essential for any system designer.

What is the FM27C256Q120?

The FM27C256Q120 is a 128K x 8bit mask ROM chip from Fujitsu. It is fast and configurable, making it suitable for many different application areas. The chip has an address bus width of 24 bits, allowing for up to 16M of programmable ROM space. The device also has data bus width of 8 bits and supports up to 132 MHz operating frequency.

The device also provides various control signals, such as CE* (chip enable), OE* (output enable), and WE* (write enable), which makes it easy to access and write data to different locations in the memory. Furthermore, the FM27C256Q120 includes power-on reset and write protection circuitry, so it can be configured and automatically reset in a system.

Application Fields of FM27C256Q120

The flexibility of the FM27C256Q120 makes it suitable for many different application fields, including:

• Networking systems – The device can be used to store control programs, which are necessary in networks.
• Industrial computers – The chip can be used as a programmable ROM for PCs used in industrial automation.
• Gaming machines – The device can store game programs, so it is suitable for applications such as casino gaming machines.
• UI design – The device is capable of storing data for graphical user interface (GUI) components, such as menus and buttons used on PC monitors.
• Automotive applications – The memory chip can be used in automotive systems to store control programs.
• Data processing systems – The chip can be used to store data which is then processed at high speed.

Working Principle of FM27C256Q120

The working principle of the FM27C256Q120 is fairly straightforward. The device is a mask ROM, which means that the program data is embedded in the chip itself and cannot be changed. When a data request is made, the chip’s control signals enable the data path and the desired data is accessed from the ROM. The chip also has several inputs, such as clock enable (CE*), output enable (OE*), and write enable (WE*). These signals instruct the chip on when to enable and disable the data outputs.

The CE* signal is high when the chip is in operation, and is low when the chip is inactive. The OE* signal is high when the data outputs are enabled, and low when the data output is disabled. The WE* signal, meanwhile, is active low and controls the write cycles. When the signal is high, the write cycle is enabled, and when the signal is low, the write cycle is disabled.

The FM27C256Q120 is also equipped with power-on reset and write protection circuitry, which makes it easier to configure and protect the data stored in the chip. This prevents the chip from being tampered with or damaged by external forces.

Conclusion

The FM27C256Q120 is a versatile and powerful chip that is suitable for a variety of application fields. It is fast and configurable, and can store up to 128K x 8bits of data. The device also has an address bus width of 24 bits, allowing for up to 16M of programmable ROM space. Furthermore, the chip is equipped with power-on reset and write protection circuitry, making it easy to configure and protect data.

The chip is suitable for various applications, including networking systems, industrial computers, gaming machines, UI design, automotive applications, and data processing systems. Understanding how the device works and what types of applications it is suited for is essential for any system designer.

The specific data is subject to PDF, and the above content is for reference