24LC04BT-I/MNY

Memory IC Overview

The Microchip Technology 24LC04BT-I/MNY is a 4-Kbit Electrically Erasable PROM (EEPROM) organized as two blocks of 256 x 8-bit memory. It operates with a supply voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 400 kHz via a Two-Wire Serial Interface compatible with I²C protocols. The device features an access time of 900 ns, a page write buffer for up to 16 bytes, and hardware write protection. It is housed in an 8-Lead TDFN package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional data transmission using a standard Two-Wire Serial Interface compatible with I²C protocols.
• Includes a 16-byte page write buffer to optimize data throughput during sequential write operations.
• Features Schmitt Trigger inputs and filter circuits on SCL and SDA lines to suppress noise spikes.
• Provides hardware write protection by tying the WP pin to VCC to inhibit all write operations.

Memory IC Applications

• Data logging applications requiring non-volatile storage
• Configuration parameter storage in embedded systems
• Calibration data retention in sensor modules

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the device meets RoHS compliance standards for your region. Ensure the design accounts for the humidity sensitivity classification during assembly. Validate that the power supply voltage remains within the specified operational limits to guarantee reliable performance.

Memory IC Selection Notes

Select this component when a 4-Kbit EEPROM capacity is required with I²C interface compatibility. Choose this part over variants like the 24AA04 if the system operates exclusively above 2.5V, as it does not support lower voltages. Consider the TDFN package constraints regarding thermal dissipation and board space requirements compared to other available packages.

Memory IC Part Context

This device belongs to the 24XX04 family, which includes the 24AA04 and 24FC04 models. While sharing similar architectural features, the 24LC04B variant is distinct due to its minimum operating voltage of 2.5V, unlike the 24AA04 which supports operation down to 1.7V. The 'I' designation indicates the industrial temperature range, and 'MNY' specifies the 8-Lead TDFN package configuration.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24LC04BT-E/MNY, 24LC04B-I/MNY, 24LC04B-E/SN, 24LC04B-I/MS.

Memory IC FAQ

How does the hardware write-protect feature function?

Tying the WP pin to VCC inhibits all write operations, protecting the entire memory array from modification while allowing read operations to proceed normally.

What happens if a page write crosses a physical page boundary?

If a page write command attempts to cross a physical page boundary, the data wraps around to the beginning of the current page, overwriting previously stored data instead of writing to the next page.