24LC04BT-I/OT

Memory IC Overview

The Microchip Technology 24LC04BT-I/OT 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 clock frequencies up to 400 kHz at supply voltages between 2.5V and 5.5V. The device operates within an industrial temperature range of -40°C to +85°C and is housed in a 5-lead SOT-23 package.

Memory IC Feature Summary

• Supports bidirectional data transfer via a standard two-wire serial bus interface
• 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 termination

Memory IC Applications

• Embedded systems requiring non-volatile parameter storage
• Device calibration data retention
• User configuration persistence in consumer electronics
• Firmware version tracking and logging

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the required voltage range and temperature grade. Confirm the package type matches the design constraints, as the 24LC04B series supports multiple form factors including SOIC, MSOP, and SOT-23. Ensure compatibility with the target system's I²C bus voltage levels and pull-up requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a 4-Kbit capacity is sufficient for application needs. The 24LC04B variant requires a minimum supply voltage of 2.5V, distinguishing it from the 1.7V-capable 24AA04 or 24FC04 models. Consider the 400 kHz maximum clock speed limitation compared to higher-speed alternatives if data throughput is critical. Verify that the SOT-23 package fits the available PCB real estate.

Memory IC Part Context

This part belongs to the 24XX04 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA04 and 24FC04, which share similar organizational structures but differ in operating voltage ranges and maximum clock frequencies. The 24LC04B specifically targets applications requiring a 2.5V to 5.5V supply range.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA04T-I/OT and 24FC04T-I/OT, provided the system voltage supports their respective ranges (1.7V–5.5V). Cross-referencing datasheets is essential to confirm voltage tolerance and speed compatibility.