LE25U81AQETXG

Memory IC Overview

The LE25U81AQETXG is an 8M-bit (1024K x 8) serial flash memory device utilizing a single 2.5V power supply within a 2.3 to 2.7V range. It features SPI mode 0 and mode 3 interfaces with an operating frequency of up to 40MHz. The device supports Dual Output and Dual I/O read functions for enhanced performance. It includes small sector (4KB), sector (64KB), and chip erase capabilities, along with page programming of 256 bytes. The component is housed in an 8-pin VSON8T package measuring 6.0 x 5.0 mm.

Memory IC Feature Summary

• Supports high-performance Dual Output and Dual I/O read functions alongside standard SPI modes.
• Includes block protect functionality with non-volatile status register settings for data security.
• Features hardware and software data protection mechanisms to prevent unintentional writes.
• Provides small sector erase capability suitable for parameter storage requiring fewer rewrite cycles.

Memory IC Applications

• Portable information devices requiring compact dimensions
• Storage of program code in embedded systems
• Parameter or data storage applications

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and tape/reel specifications. Ensure compatibility with the required voltage range and interface protocols before integration. Cross-reference the manufacturer's latest datasheet for any updates on pin assignments or electrical characteristics.

Memory IC Selection Notes

Select this component for applications needing 8M-bit capacity in a miniature footprint. It is suitable for designs requiring dual I/O speed improvements over standard SPI. Consider the 40MHz clock limit and 2.5V supply requirements when designing the power and clock circuits.

Memory IC Part Context

This part belongs to the LE25U81AQE series of serial flash memories from onsemi. It is licensed from Silicon Storage Technology, Inc. The device is designed to replace conventional EEPROMs where higher capacity is needed but rewrite endurance remains moderate.

Memory IC Replacement Considerations

Check for direct substitutes within the same density and package family. Verify if alternative vendors offer compatible pinouts and command sets for seamless migration without circuit redesign.

Memory IC FAQ

How does the Dual I/O read function improve performance?

Dual I/O read changes both SI/SIO0 and SO/SIO1 into input/output pins, doubling the data output rate compared to standard SPI reads by transmitting two bits per clock cycle.

What is the purpose of the WP pin?

The WP pin provides hardware write protection. When held low, it prevents status register writes if SRWP is set, protecting the configuration bits from modification.