LE25U40CMDTWG

Memory IC Overview

The LE25U40CMDTWG is a NOR flash memory device manufactured by onsemi, featuring a storage capacity of 4 Mbit organized as 4M x 8 bits. It operates within a supply voltage range of 2.3 V to 3.6 V and utilizes an SPI interface with a maximum clock frequency of 40 MHz. The active read current reaches up to 15 mA. Designed for surface mount installation in an SOIC-8 package, it supports a symmetric block organization. The component functions reliably across an operating temperature range from -40 °C to +85 °C.

Memory IC Feature Summary

• Supports standard Serial Peripheral Interface (SPI) communication protocols for data transfer.
• Provides non-volatile data retention suitable for persistent code and data storage applications.
• Features a compact surface-mount package design optimized for space-constrained circuit boards.

Memory IC Applications

• Embedded systems requiring low-power code execution
• Consumer electronics firmware storage
• Industrial control system configuration memory

Memory IC Procurement Notes

Verify the specific suffix CMDTWG against the official datasheet to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation before integration. Check for moisture sensitivity level requirements during handling and storage procedures. Ensure pin compatibility with existing PCB footprints. Validate that the 40 MHz SPI speed meets system timing constraints.

Memory IC Selection Notes

Select this component when a 4 Mbit capacity is required with a 2.3 V to 3.6 V supply rail. The SOIC-8 package suits designs needing standard surface-mount assembly. Verify that the 40 MHz SPI interface aligns with controller capabilities. Consider the -40 °C to +85 °C temperature range for environmental suitability. Compare power consumption metrics against alternative memory solutions if battery life is critical.

Memory IC Part Context

This part belongs to the LE25U series of NOR flash memories from onsemi. The series typically offers varying capacities and voltage ranges. The LE25U40CMDTWG specifically targets applications needing moderate density with standard voltage operation. It complements other devices in the portfolio offering different speeds or packaging options.

Memory IC Replacement Considerations

Consult official substitution guides for compatible parts with identical pinouts and electrical characteristics. Verify that any replacement maintains the 4 Mbit capacity and SPI interface compatibility. Ensure the substitute supports the same voltage range and temperature specifications.