24FC04HT-E/MS

Memory IC Overview

The Microchip Technology 24FC04HT-E/MS is a 4-Kbit (512 x 8) serial EEPROM featuring an I2C-compatible two-wire interface. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports clock frequencies up to 1 MHz. The device includes hardware write protection for the upper half of the memory array (addresses 100h-1FFh). It utilizes low-power CMOS technology with maximum active read current of 1 mA and standby current of 3 µA at extended temperatures. The component is housed in an 8-lead MSOP package and is qualified for industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection mechanism inhibits write operations to the upper half of the memory array when the WP pin is tied high.
• Low-voltage design enables operation down to 1.7V, supporting applications requiring reduced power consumption.
• Integrated Schmitt trigger inputs and output slope control provide noise suppression and eliminate ground bounce effects.

Memory IC Applications

• Data logging in battery-powered portable devices
• Configuration storage in consumer electronics
• Parameter retention in industrial control systems

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) and 'MS' indicates the 8-lead MSOP package. Confirm the specific revision level of the datasheet DS20002119C matches the production lot requirements. Ensure compatibility with the system's I2C bus voltage levels and pull-up resistor configurations before finalizing procurement orders.

Memory IC Selection Notes

Select this part when a 4-Kbit capacity with high-speed 1 MHz I2C communication is required alongside low-voltage operation. The Extended temperature grade is suitable for environments exceeding standard industrial limits. The MSOP package offers a compact surface-mount solution for space-constrained designs. Consider the half-array write protection feature if specific memory regions require permanent data retention against accidental writes.

Memory IC Part Context

This component belongs to the 24XX04H family of serial EEPROMs, which shares architectural similarities with the 24AA04H and 24LC04BH variants. While all three share the same physical package options and memory organization, they differ in minimum operating voltage and maximum clock frequency specifications. The 24FC04H variant specifically supports the highest speed within the family.

Memory IC Replacement Considerations

Direct substitutes include the 24AA04HT-E/MS and 24LC04BHT-E/MS. Note that the 24AA04H is limited to 400 kHz operation below 2.5V, while the 24LC04BH requires a minimum of 2.5V. Verify that the application voltage and clock speed requirements align with the specific electrical characteristics of any potential replacement part number.