24AA04T-I/CS16K

Memory IC Overview

The Microchip Technology 24AA04T-I/CS16K is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) utilizing a two-wire serial interface compatible with I²C. It operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 100 kHz at voltages below 2.5V and 400 kHz at voltages of 2.5V or higher. The device features industrial temperature ratings from -40°C to +85°C and includes hardware write protection via the WP pin.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal standby current
• I²C compatible two-wire serial interface with Schmitt trigger inputs for noise suppression
• Hardware write-protect capability allowing inhibition of write operations when tied to VCC
• Self-timed erase/write cycles with automatic page write buffer management

Memory IC Applications

• Smartcard applications requiring low-voltage non-volatile storage
• Industrial systems needing reliable data retention in harsh environments
• Embedded devices utilizing I²C bus communication protocols

Memory IC Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status and specific package marking codes against official datasheets. Ensure environmental specifications match operational requirements. Validate that ordering suffixes correspond to intended packaging formats. Cross-reference part numbers with manufacturer databases to confirm availability and lifecycle status.

Memory IC Selection Notes

Select this component for designs requiring robust I²C connectivity and extended data retention capabilities. Consider the 1.7V minimum operating voltage for battery-powered or low-voltage logic systems. Evaluate the 5ms maximum write cycle time against application timing constraints. Verify compatibility with host controller I²C clock speeds across the full voltage range.

Memory IC Part Context

This EEPROM belongs to the 24XX04 family, which includes variants like the 24LC04B and 24FC04. While sharing similar memory architecture, differences exist in minimum operating voltage and maximum clock frequency among family members. The 24AA04 variant specifically supports lower voltage operation compared to the 24LC04B series.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24AA04T-E/CS16K.