24LC04B-E/SN

Memory IC Overview

The Microchip Technology 24LC04B-E/SN is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I²C serial interface. It operates within a voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz. The device utilizes an 8-lead SOIC package and is rated for extended temperature operation from -40°C to +125°C. Key electrical characteristics include a maximum access time of 900 ns, a page write time of 5 ms, and standby current of 5 µA at extended temperatures.

Memory IC Feature Summary

• Supports bidirectional data transmission via a standard two-wire I²C compatible bus protocol.
• Includes hardware write protection controlled by the WP pin to inhibit memory writes when tied to VCC.
• Features Schmitt trigger inputs with noise suppression on SCL and SDA lines to ensure reliable operation in noisy environments.
• Contains a 16-byte page write buffer to optimize data transfer efficiency during write operations.

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters or calibration data.
• Industrial control devices needing reliable data retention across extended temperature ranges.
• Consumer electronics utilizing low-power memory for small-scale data logging.

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended temperature grade (-40°C to +125°C) and 'SN' denotes the 8-lead SOIC package. Confirm RoHS compliance status as per the latest datasheet revision. Ensure design-in compatibility with existing I²C bus voltage levels and pull-up resistor requirements for the 400 kHz operating frequency.

Memory IC Selection Notes

Select this component when extended industrial temperature performance is required alongside standard I²C connectivity. The 24LC04B variant specifically requires a minimum supply voltage of 2.5V, distinguishing it from lower-voltage counterparts like the 24AA04. Consider the 8-lead SOIC footprint for surface-mount assembly constraints and verify that the 400 kHz speed meets system timing requirements.

Memory IC Part Context

This part belongs to the 24XX04 family of 4-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24AA04 and 24FC04, which differ primarily in operating voltage ranges and maximum clock speeds. The 24LC04B series is optimized for applications requiring robust performance at 2.5V to 5.5V supplies.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 24LC04BT-I/SN, 24LC04BHT-I/SN, 24LC04BT-E/SNG