24FC04HT-I/MS

Memory IC Overview

The Microchip Technology 24FC04H-I/MS is a 4-Kbit (512 x 8) I²C serial EEPROM housed in an 8-lead MSOP package. It operates with a supply voltage range of 1.7V to 5.5V and supports clock frequencies up to 1 MHz at VCC ≥ 2.5V, or 100 kHz at lower voltages. The device features hardware write protection for the upper half-array (addresses 100h-1FFh), a 16-byte page write buffer, and Schmitt trigger inputs for noise suppression. It is rated for industrial temperatures (-40°C to +85°C) and offers data retention exceeding 200 years.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• I²C compatible two-wire serial interface supporting 100 kHz, 400 kHz, and 1 MHz clock rates
• Low-power CMOS technology with standby current as low as 1 µA
• Schmitt trigger inputs and output slope control for enhanced noise immunity

Memory IC Applications

• Non-volatile data storage in consumer electronics
• Configuration parameter storage in industrial control systems
• Device identification and calibration data logging
• Embedded system settings retention in automotive applications

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's latest datasheet to ensure compatibility with design specifications. Check for any recent product change notices regarding packaging or electrical characteristics before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 4-Kbit capacity with high-speed 1 MHz I²C support is required. Ensure the application voltage remains above 2.5V if maximum clock speeds are necessary. Consider the MSOP package dimensions for PCB layout constraints. Verify that the hardware write-protect feature aligns with the system's security requirements for the upper memory block.

Memory IC Part Context

This part belongs to the 24XX04H family of serial EEPROMs from Microchip Technology. It shares functional similarities with the 24AA04H and 24LC04BH but distinguishes itself by supporting higher clock frequencies up to 1 MHz. The 'I' designation indicates the industrial temperature range, while '/MS' specifies the 8-lead MSOP plastic small outline package.

Memory IC Replacement Considerations

Direct replacements include other members of the 24XX04H family such as the 24AA04H or 24LC04BH, provided voltage and speed requirements are met. Cross-vendor equivalents like the M24C04 may be considered, though pinouts and electrical characteristics should be verified carefully.