24LC04BT-I/SNG

Memory IC Overview

The Microchip Technology 24LC04BT-I/SNG is a 4-Kbit Electrically Erasable PROM (EEPROM) organized as two blocks of 256 x 8-bit memory. It features a two-wire serial interface compatible with I²C protocols, supporting maximum clock frequencies of 100 kHz at voltages below 2.5V and 400 kHz at 2.5V to 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum access time of 900 ns, a page write time of 5 ms, and standby current of up to 5 µA in extended temperatures.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard two-wire serial bus protocol.
• Includes hardware write protection controlled by the WP pin to inhibit write operations.
• Features Schmitt trigger inputs and noise suppression filters for reliable operation on noisy buses.
• Provides self-timed erase/write cycles with automatic acknowledgment polling capabilities.

Memory IC Applications

• Embedded systems requiring non-volatile storage for configuration parameters.
• Industrial control devices needing reliable data retention under varying environmental conditions.
• Consumer electronics utilizing low-power memory for small data sets.
• Automotive applications where AEC-Q100 qualification is required.

Memory IC Procurement Notes

Verify that the specific suffix 'I' corresponds to the Industrial temperature grade (-40°C to +85°C) and 'SNG' denotes the SOIC-8 package variant. Confirm RoHS compliance status and check for any obsolescence notices, as some variants in this family may carry end-of-life designations. Ensure the ordering code matches the exact voltage and speed requirements of your target application circuit.

Memory IC Selection Notes

Select this component when a 4-Kbit capacity is sufficient for the application's data storage needs. Choose this part over the 24AA04 if the system operates exclusively above 2.5V, or over the 24FC04 if lower maximum clock speeds are acceptable. Consider the SOIC-8 package for surface-mount assembly constraints. Verify that the I²C bus pull-up resistor values align with the 400 kHz operating frequency and supply voltage levels.

Memory IC Part Context

This device belongs to the 24XX04 family of serial EEPROMs from Microchip Technology, which also includes the 24AA04 and 24FC04 models. These parts share similar functional architectures but differ in minimum operating voltage and maximum clock frequency specifications. The 24LC04B series specifically targets applications requiring a 2.5V minimum supply voltage, distinguishing it from the wider voltage range options available in other family members.

Memory IC Replacement Considerations

Direct substitutes within the same package and specification profile include the 24LC04BT-I/SN. Other compatible alternatives from the same family are the 24LC04BT-I/MS and 24LC04BT-I/ST, provided the package type change is acceptable for the PCB layout.