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Memory

The CY7C131E-25NXCT is a 1Mb, 90nm 3.2 volt non-volatile dual-port SRAM embedded memory with an industry leading combination of fast byte-write access time at 25ns, read access time at 18ns, and a power dissipation of 25mW per Mb. It has been designed specifically to meet the needs of high-end data-driven applications such as workstations, routers, and automotive products.

The memory device is organized as 128Kx8 bits, with 64Kbytes of programmable non-volatile memory and an additional 64Kbytes of volatile RAM. Each port includes 32Kx8 bits of non-volatile memory, 64Kx8 bits of data memory per port, plus 32Kx8 bits of programmable SRAM.

The CY7C131E-25NXCT has a two-wire serial interface to support operation in both asynchronous and synchronous modes. It supports two basic operating modes, program release and execute. In the program release mode, a single instruction is requested from the serial interface. The instruction will then be immediately sent to the device and the requested data will be released. In the execute mode, the instruction is sent first and then the data is released.

For security purposes, the CY7C131E-25NXCT provides 128-bit encryption. In addition, the memory also features dynamic partial erase, fast write, ECC/parity, data locking and built-in self-test capabilities. Also, it provides power-saving modes, error reset, password protection, and a hardware watchdog timer for increased reliability.

The CY7C131E-25NXCT is ideal for high-end embedded applications needing fast data access time, reliability and low power dissipation. It is suitable for automotive, scientific instrumentation, industrial automation and medical equipment, in addition to computer peripherals and other portable electronic devices.

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