24CW640-I/SN

Memory IC Overview

The Microchip Technology 24CW640-I/SN is a 64 Kbit (8K x 8) serial Electrically Erasable Programmable Read-Only Memory (EEPROM). It utilizes an I2C (2-Wire) serial interface with a maximum clock frequency of 1 MHz. The device operates within a supply voltage range of 1.6 V to 5.5 V and features a typical access time of 450 ns. It supports software write protection and is rated for industrial operating temperatures from -40°C to +85°C. The component is housed in an 8-SOIC package.

Memory IC Feature Summary

• Supports high-speed I2C communication with a 1 MHz clock rate
• Includes software-based write protection mechanisms
• Operates across a wide voltage range from 1.6 V to 5.5 V

Memory IC Applications

• Industrial control systems requiring non-volatile data storage
• Consumer electronics utilizing low-voltage power supplies
• Embedded systems needing configuration parameter retention

Memory IC Procurement Notes

Verify the specific suffix against official datasheets, as package designations vary by manufacturer standards. Confirm that the 'SN' designation corresponds to the intended surface-mount package type for your PCB layout. Ensure compatibility with the target system's I2C bus voltage levels and timing requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a 64 Kbit capacity is required alongside standard I2C connectivity. It is suitable for applications demanding operation at voltages as low as 1.6 V. Consider the 8-SOIC package dimensions for board space constraints. Verify that the industrial temperature range meets the environmental conditions of the end application.

Memory IC Part Context

This part belongs to the 24CW series of serial EEPROMs from Microchip Technology. The series offers various memory densities and packaging options. The 24CW640 variant specifically provides 64 Kbit of storage. These devices are designed for general-purpose non-volatile memory applications where data retention and low power consumption are priorities.

Memory IC Replacement Considerations

Check for direct pin-compatible alternatives within the same 24CW family or other manufacturers offering 64 Kbit I2C EEPROMs in similar packages. Ensure electrical parameters such as voltage range and clock speed match the original design requirements.