24AA04H-I/P

Memory IC Overview

The Microchip Technology 24AA04H-I/P is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) housed in an 8-Lead PDIP package. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz at voltages above 2.5V, or 100 kHz below 2.5V. The device features a two-wire I2C compatible serial interface with Schmitt trigger inputs for noise suppression. Key electrical characteristics include a maximum active read current of 1 mA and a standby current of 1 µA. It offers hardware write protection for the upper half of the memory array (addresses 100h-1FFh) via the WP pin.

Memory IC Feature Summary

• Hardware write protection enables selective locking of the upper half of the memory array while maintaining full read access to protected regions.
• Integrated Schmitt triggers and input filters suppress noise spikes on the SDA and SCL lines to ensure reliable data transmission.
• Output slope control circuitry minimizes ground bounce effects during switching transitions.
• Self-timed erase/write cycles allow immediate bus availability through acknowledge polling mechanisms.

Memory IC Applications

• Industrial control systems requiring non-volatile data storage under varying voltage conditions
• Consumer electronics utilizing low-power I2C communication protocols
• Automotive embedded applications meeting AEC-Q100 qualification standards

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C). Confirm the 'P' suffix indicates the 8-Lead Plastic Dual In-Line package. Ensure the design supports the specific voltage-dependent clock frequency limits defined in the datasheet. Check for RoHS compliance status if required by assembly specifications.

Memory IC Selection Notes

Select this component when a 4-Kbit EEPROM with hardware write protection is required. The 24AA04H variant is suitable for designs operating down to 1.7V. Compare against the 24LC04BH if the minimum supply voltage requirement is 2.5V or higher. Consider the 24FC04H if operation at 1 MHz clock speeds is necessary within the extended temperature range.

Memory IC Part Context

This part belongs to the 24XX04H family of 4-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC04BH and 24FC04H, which share similar architectural features but differ in minimum operating voltage and maximum clock frequency specifications. The device utilizes a standard two-wire serial interface protocol for data transfer.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA04H-I/MS (MSOP package) and 24AA04H-I/SN (SOIC package). Cross-family replacements like the 24LC04B series may require voltage level adjustments due to different minimum supply voltage requirements.