24AA04-I/P

Memory IC Overview

The Microchip Technology 24AA04-I/P is a 4-Kbit Electrically Erasable PROM (EEPROM) organized as two blocks of 256 x 8-bit memory. It operates with 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 16-byte page write buffer, hardware write protection via the WP pin, and an access time of 900 ns. It is rated for industrial temperatures (-40°C to +85°C), offers data retention exceeding 200 years, and endures over one million erase/write cycles.

Memory IC Feature Summary

• Supports bidirectional two-wire serial interface compatible with I2C protocols
• Includes hardware write-protect capability controlled by the WP pin
• Features Schmitt trigger inputs and output slope control for noise suppression

Memory IC Applications

• Data logging in industrial environments
• Configuration storage for electronic systems
• Parameter storage in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'I' confirms the Industrial temperature range (-40°C to +85°C). Confirm the '/P' suffix corresponds to the 8-Lead PDIP package type. Ensure the specific part number matches the required voltage and speed specifications before procurement.

Memory IC Selection Notes

Select this component when low-voltage operation down to 1.7V is required alongside standard I2C compatibility. The Industrial temperature grade makes it suitable for broader environmental conditions compared to commercial variants. Consider the through-hole PDIP package if PCB assembly methods require it.

Memory IC Part Context

This device belongs to the 24XX04 family, which includes the 24LC04B and 24FC04 variants. While sharing similar architecture, the 24AA04 is distinguished by its ability to operate at lower supply voltages starting at 1.7V, whereas other family members may have higher minimum voltage requirements.

Memory IC Replacement Considerations

Direct replacements within the same package and electrical specifications include the 24AA04T-I/ST (TSSOP package) or 24AA04H-I/ST. Verify that any substitute maintains the 1.7V minimum operating voltage and 400 kHz clock frequency support.