CY62168GN30-45BVXI

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CY62168GN30-45BVXI is a type of memory containing 128K Nonvolatile SRAM (Static Random Access Memory). It is a dual-ported 8K x 8 high-speed nonvolatile SRAM, with a read-only memory (ROM) protecting the data stored in the internal memory. CY62168GN30-45BVXI lets users implement a 128K-bit nonvolatile SRAM with just one device. It is a cost-effective, space-efficient solution for data protection, volatile memory backup and miniaturization.

Application Fields

CY62168GN30-45BVXI is a memory device widely used in powering applications. It is suitable for embedded systems, telecom/wireless products, or for various types of embedded systems requiring transparent data storage. It is also suitable for industrial, instrumentation, and medical applications. This type of memory provides a reliable solution for real-time operating system memory retention and data protection.

CY62168GN30-45BVXI is a recognised memory for various applications. It is suitable for use in applications such as packet switching, control systems, data logging, data acquisition, industrial automation, health care/medical and gaming.

Working Principles

CY62168GN30-45BVXI consists of a dual-ported 8 KB x 8 SRAM, an internal Write Protect Memory ROM, an internal timer and Nonvolatile Self-Refresh (NVSR) circuitry. These features protect the contents of the device from corruption due to system faults. The NVSR circuitry reserves an area of the SRAM for data protection and controls the self-refreshing process.

The NVSR circuitry detects and reports system Power-Fail events, and optionally restores the SRAM content from the Write Protect Memory ROM. The built-in timer keeps track of the time during a Power-Fail event, ensuring that new data is written in a timely manner to the SRAM.

Once the system is reset, the contents of the SRAM can be restored with either a normal system power-up or using a manual command. When the system enters a Power-Fail state, the NVSR circuitry initiates a self-refreshing process that restores the SRAM content prior to the Power-Fail event.

CY62168GN30-45BVXI also provides a user selectable write-protect feature. This feature prevents accidental overwriting of parts of the SRAM. The write-protect feature is enabled by accessing its control register and setting the write-protect bits.

The device also supports a bus-hold function which allows the SRAM ports to be held during power fails and some other low current conditions. This ensures data integrity during those periods.

CY62168GN30-45BVXI is pin-to-pin compatible with many other devices in the family and these devices can be easily replaced without any changes to the hardware. This makes them an easy and cost-effective solution for data logging, control systems, and other embedded systems that require data retention.

CY62168GN30-45BVXI is a cost-effective, space-efficient solution for data protection, volatile memory backup and miniaturization. Its write-protect feature makes it a great choice for environments where accidental data overwrites could lead to system faults. The bus-hold feature ensures data integrity during low current conditions and the internal timer can be used to keep track of the time elapsed during a power-fail event.

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