CY15B104QN-20LPXIT

Memory IC Overview

The Infineon CY15B104QN-20LPXIT is a 4-Mbit (512K × 8) ferroelectric random access memory utilizing the EXCELON LP process. It features a serial peripheral interface with clock frequencies up to 50 MHz and supports SPI modes 0 and 3. The device operates within a voltage range of 1.8 V to 3.6 V and functions across an industrial temperature range of –40°C to +85°C. It is housed in an 8-pin GQFN package.

Memory IC Feature Summary

• Provides virtually unlimited endurance with 10^15 read/write cycles and 151-year data retention.
• Performs instant non-volatile writes at bus speed without requiring write delays or polling.
• Includes a dedicated 256-byte special sector capable of surviving multiple reflow soldering cycles.
• Offers sophisticated hardware and software write protection schemes via the WP pin and status register.

Memory IC Applications

• Data collection systems requiring frequent rapid writes
• Industrial controls demanding high reliability
• Hardware drop-in replacements for serial EEPROM or flash

Memory IC Procurement Notes

Verify the specific suffix '20LPXIT' against official documentation to confirm the GQFN package type and lead-free compliance. Confirm that the industrial temperature grade matches system requirements. Ensure the supply chain source provides valid RoHS certification. Check for any end-of-life notifications as availability may vary.

Memory IC Selection Notes

Select this component when high-speed, byte-level writes are critical compared to traditional serial flash. The low-power consumption and high endurance make it suitable for battery-operated devices. Ensure the host microcontroller supports the required SPI modes and voltage levels. Consider the GQFN package constraints for PCB layout.

Memory IC Part Context

This part belongs to the EXCELON LP F-RAM family, designed for low-power applications. It replaces conventional non-volatile memories by eliminating complex write cycles. The series includes variants with different voltage ranges and packages, offering flexibility for various embedded memory needs.

Memory IC Replacement Considerations

Direct substitutes include other CY15B104QN variants with different packages such as SOIC or UFLGA. Verify compatibility with existing SPI interfaces and voltage supplies when selecting alternative package options from the same manufacturer.

Memory IC FAQ

Does the CY15B104QN require write polling?

No, the device performs writes at bus speed, allowing the next bus cycle to commence immediately without polling for ready conditions.

What is the purpose of the special sector?

The dedicated 256-byte special sector allows storage of content that can survive up to three standard reflow soldering cycles.