24CW320T-E/Q4B66KVAO

Memory IC Overview

The Microchip Technology 24CW320T-E/Q4B66KVAO is a 32 Kbit I2C Serial EEPROM housed in an 8-lead UDFN package. It operates within a voltage range of 1.6 V to 5.5 V and supports clock frequencies up to 1 MHz. The device features software write protection via the Write Protection Register (WPR) and programmable hardware client address bits. It is qualified for extended temperature ranges from -40°C to +125°C and meets AEC-Q100 automotive standards.

Memory IC Feature Summary

• Supports high-speed I2C interface with industry standard clock frequencies up to 1 MHz
• Includes software write protection capabilities controlled by the Write Protection Register
• Features programmable hardware client address bits for multi-device bus configurations
• Designed for reliable nonvolatile memory storage in industrial and automotive environments

Memory IC Applications

• Automotive embedded systems requiring AEC-Q100 qualification
• Industrial control applications needing dependable data retention
• Consumer electronics utilizing low-power serial memory solutions

Memory IC Procurement Notes

Verify the specific ordering suffix Q4B66KVAO against official Microchip documentation to confirm package type, tape and reel specifications, and regional availability. Ensure compatibility with system voltage requirements and temperature constraints before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when a 32 Kbit capacity with I2C interface is required for extended temperature operation. Consider the 1 MHz maximum clock frequency and 1.6 V minimum operating voltage for power-constrained designs. Verify that the UDFN package fits the available PCB space.

Memory IC Part Context

This part belongs to the 24CW Series family of serial EEPROMs, which includes densities ranging from 16 Kbit to 128 Kbit. The series shares common architectural features such as the I2C interface, write protection mechanisms, and configuration registers, allowing for scalable design across different memory requirements.

Memory IC Replacement Considerations

Compatible substitutes within the same family include other 24CW32X variants with different temperature ratings or packages, such as the 24CW320T-I/Q4B for industrial temperature range. Ensure pinout and electrical characteristics match before substitution.