CY15B102QN-50LHXI

Memory IC Overview

The Infineon CY15B102QN-50LHXI is a 2Mb (256K × 8) serial ferroelectric RAM utilizing SPI interface. It supports clock frequencies up to 50 MHz and operates within a voltage range of 1.8 V to 3.6 V. The device features industrial temperature ratings from -40°C to +85°C and is housed in an 8-pin DFN package.

Memory IC Feature Summary

• Ferroelectric memory technology providing virtually unlimited read/write endurance and eliminating write delays associated with flash or EEPROM.
• Integrated hardware and software write protection mechanisms, including block protection and dedicated write protect pin control.
• Built-in identification registers for manufacturer ID, unique device ID, and writable serial number storage.

Memory IC Applications

• Data logging systems requiring frequent rapid writes
• Industrial control applications demanding high reliability
• Embedded systems needing instant non-volatile data retention

Memory IC Procurement Notes

Verify the specific suffix LHXI corresponds to the 8-lead DFN package configuration. Confirm that the 50 MHz speed grade matches system timing requirements. Ensure the industrial temperature range aligns with environmental operating conditions. Check RoHS compliance status for regulatory adherence.

Memory IC Selection Notes

Select this component when replacing serial flash or EEPROM to achieve faster write speeds and higher endurance. Consider the low power consumption modes if battery life is critical. Ensure the host microcontroller supports SPI Mode 0 or Mode 3 protocols for proper communication.

Memory IC Part Context

This part belongs to the EXCELON LP F-RAM family, designed as a drop-in replacement for serial EEPROM and flash. It combines the density of non-volatile memory with the speed and endurance of volatile RAM technologies, targeting applications where data integrity during power loss is essential.

Memory IC Replacement Considerations

Direct replacements include other CY15B102QN variants with different packages such as SOIC-8 or PDIP. Verify pin compatibility and ensure the substitute maintains the same SPI command set and voltage specifications.

Memory IC FAQ

Does the CY15B102QN require polling after write operations?

No, the device performs writes at bus speed without delays, so data polling is not necessary before initiating the next bus cycle.

How is the write protect function controlled?

Write protection is managed via the Status Register bits BP1 and BP0 for software block protection, and the WP pin for hardware protection when enabled by the WPEN bit.