S-24CM01CI-J8T1U4

Overview

The S-24CM01CI-J8T1U4 is a 1 M-bit (131072 words x 8-bit) 2-wire serial EEPROM manufactured by ABLIC Inc. It operates within a voltage range of 1.6 V to 5.5 V for reading and 1.7 V to 5.5 V for writing. The device supports clock frequencies up to 1.0 MHz at voltages between 2.5 V and 5.5 V, and 400 kHz at 1.6 V to 2.5 V. It features page write capabilities of 256 bytes per page and includes an ECC function for error correction on every four-byte unit. The component is housed in an 8-pin SOP package.

Feature Summary

• Integrated Error Correction Code (ECC) function that automatically corrects single-bit errors within each four-byte data unit during read operations.
• Hardware write protect mechanism via the WP pin, which inhibits memory writes when connected to VCC.
• Built-in low power supply voltage detection circuit that cancels ongoing write operations if the voltage drops below the threshold.
• Supports sequential read and page write modes to optimize data transfer efficiency.

Applications

• Consumer electronics requiring non-volatile data storage
• Office equipment needing configuration parameter retention
• Communication devices storing operational settings

Procurement Notes

Verify the specific ordering suffix J8T1U4 against the manufacturer's current product name structure documentation to confirm lead-free and halogen-free status. Confirm that the intended application does not involve medical or automotive equipment without prior authorization from ABLIC Inc., as these uses are restricted.

Selection Notes

Select this component for systems requiring high-density storage with built-in data integrity protection via ECC. Ensure the system design accommodates the 256-byte page size limitation for write operations. Verify that the operating voltage aligns with the specified frequency requirements, particularly noting the reduction to 400 kHz at lower voltages.

Part Context

This part belongs to the S-24CM01C series of 2-wire serial EEPROMs. It shares the same core architecture and specifications as other variants within the series, differing primarily in packaging or environmental compliance details defined by the ordering suffix. The series is designed for general electronic devices.

Replacement Considerations

Direct substitutes include other S-24CM01C variants with compatible packages. Cross-brand replacements must match the 1 M-bit capacity, I2C interface, and ECC functionality.

FAQ

How does the ECC function operate?

The S-24CM01C adds 6 ECC bits for every 4 bytes of data. If a single bit error occurs during a read operation, the device can detect and correct it to output valid data.

What happens if the power supply voltage drops during a write cycle?

The built-in voltage detector cancels the write operation if the voltage drops below approximately 1.50 V, preventing potential data corruption.