24LC08B-I/MS

Memory IC Overview

The Microchip Technology 24LC08B-I/MS is an 8-Kbit Electrically Erasable PROM (EEPROM) organized as four 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 for supply voltages below 2.5V and 400 kHz for voltages between 2.5V and 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. It includes hardware write-protect capabilities via the WP pin and offers data retention exceeding 200 years.

Memory IC Feature Summary

• Supports bidirectional, two-wire serial communication using standard I²C protocols with Schmitt trigger inputs for noise suppression.
• Includes a 16-byte page write buffer to enhance bus throughput during sequential data transfers.
• Provides hardware-based write protection for the entire memory array when the WP pin is tied to VCC.
• Features output slope control designed to eliminate ground bounce effects during signal transitions.

Memory IC Applications

• Non-volatile data storage in industrial control systems requiring reliable parameter retention.
• Configuration memory for embedded devices operating on single-supply low-voltage architectures.
• Calibration data logging in sensor interfaces where long-term data integrity is critical.

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP package type and Industrial temperature grade. Confirm RoHS compliance status and ensure the design accounts for the open-drain nature of the SDA line, which requires external pull-up resistors for proper bus operation. Check for any recent Product Change Notifications regarding packaging or material updates.

Memory IC Selection Notes

Select this component when a 8-Kbit capacity is required with strict I²C compatibility and hardware write protection. Ensure the application voltage remains above 2.5V, as lower voltages restrict the maximum clock frequency. Consider the MSOP package dimensions for space-constrained surface-mount designs and verify that the 5ms maximum write cycle time aligns with system timing requirements.

Memory IC Part Context

This part belongs to the 24XX08 family of serial EEPROMs, which also includes the 24AA08 and 24FC08 variants. While sharing similar architectural features, the 24LC08B is distinguished by its minimum 2.5V operating voltage requirement compared to the 1.7V capability of other family members. It utilizes the same 8-pin footprint options but is optimized for standard voltage logic levels.

Memory IC Replacement Considerations

Direct substitutes include the 24LC08BT-I/MS for tape-and-reel packaging variations within the same electrical specifications. Cross-family replacements like the 24AA08 require verification of voltage level compatibility, as they support lower supply voltages. Ensure any alternative maintains the 8-MSOP package and I²C interface constraints.