24LC04BH-E/SN

Memory IC Overview

The Microchip Technology 24LC04BH-E/SN is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I2C compatible serial interface. It operates within a voltage range of 2.5V to 5.5V and supports a maximum clock frequency of 400 kHz. The device includes hardware write protection for the upper half of the memory array (addresses 100h-1FFh). It is housed in an 8-Lead Plastic Small Outline (SN) package and is rated for extended industrial temperatures from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection for the upper half of the memory array via the WP pin
• I2C compatible two-wire serial interface with Schmitt trigger inputs for noise suppression
• Low-power CMOS technology with standby current of 5 µA maximum at extended temperatures
• Self-timed erase/write cycle with page write capability

Memory IC Applications

• Embedded systems requiring non-volatile data storage
• Industrial control applications operating in extended temperature environments
• Consumer electronics utilizing low-voltage power supplies
• Automotive electronic modules requiring AEC-Q100 qualified components

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature grade (-40°C to +125°C) and 'SN' indicates the 8-Lead SOIC package. Confirm the 'BH' designation ensures the inclusion of the half-array hardware write protection feature, as this distinguishes it from standard variants without this specific protection mechanism.

Memory IC Selection Notes

Select this component when a 4-Kbit EEPROM with hardware write protection for the upper memory block is required. Ensure the system voltage remains above 2.5V, as lower voltages are not supported by the 24LC04BH series. Verify that the application environment requires operation up to +125°C to justify the Extended temperature grade over the Industrial grade option.

Memory IC Part Context

This part belongs to the 24XX04H family of 4-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA04H and 24FC04H, which differ primarily in minimum operating voltage and maximum clock speed capabilities. The 24LC04BH specifically targets applications needing reliable operation down to 2.5V with moderate speed requirements.

Memory IC Replacement Considerations

Direct substitutes include other parts within the 24LC04BH family with different packages, such as 24LC04BH-E/P or 24LC04BH-E/MS. Cross-family replacements like the 24AA04H or 24FC04H require verification of voltage compatibility and clock speed limits.