CY7C027V-25AXC

Memory

The CY7C027V-25AXC is an array of 256K x 8-bit Static RAM. The device is ideal for use in applications requiring large burst data access within a single clock cycle. The CY7C027V-25AXC offers the highest performance for high speed microprocessors in a 1.8V system. It provides a very low stand by power consumption and a wide operating temperature range. It is optimized for 1.8V operation and is also backward compatible with 5V operation.

Application Field

The CY7C027V-25AXC is a best suited memory when fast and medium data access are required in 1.8V systems. This type of memory is especially well suited for applications such as portable digital audio players, compact digital video cameras, portable gaming systems and mobile phones. The CY7C027V-25AXC is also suitable for a wide range of other industrial and commercial applications, such as automotive and handheld avionics systems.

Working Principle

The working principle of the CY7C027V-25AXC is based on the concept of static RAM (SRAM). Unlike dynamic random access memory (DRAM), which stores data as electrical charges on a capacitor, SRAM stores data as latching transistors. The CY7C027V-25AXC has 256K words of 8-bit static RAM. The data is organized into blocks of 4K words, with each of the 256 blocks having separate access lines to the array. The device has a dedicated control logic which enables fast access to the data. Each block has address and control logic which control the data flow. The internal logic is laid out in such a way that the data is accessed in blocks of 4K words and the device is capable of accessing any single byte or entire block of data in a single clock cycle.

The input and output pins of the CY7C027V-25AXC are asynchronous, which means that they are not directly synchronized with the internal logic of the device. This allows the device to operate at the highest possible speed and flexibility and minimizes the transfer delay. The CY7C027V-25AXC also has high noise immunity for noise-sensitive applications such as automotive.

The CY7C027V-25AXC also has an integrated power-on reset feature, which ensures that the device powers up with all its registers cleared. The device also features an auto-refresh function, which helps reduce power consumption by refreshing data in the memory array. This helps to extend the lifetime of the device. The device also features programmable address and data masking, which allows the user to specify which locations in the memory array should be protected from unauthorized access.

The CY7C027V-25AXC is an ideal solution for fast burst data access. It offers high speed, low power consumption, wide operating temperature ranges and high noise immunity. This makes it an ideal choice for applications requiring reliable and quick data storage and retrieval.