24LCS22A-I/P

Memory IC Overview

The Microchip Technology 24LCS22A-I/P is a 2Kbit (256 x 8-bit) dual-mode serial EEPROM housed in an 8-pin PDIP package. It supports operation from 2.5V to 5.5V with typical standby current of 10μA at 5.5V and active current of 1mA. The device features I²C compatibility with clock frequencies up to 400kHz at 5V and 100kHz at 2.5V. It includes hardware write protection, page-write buffers for eight bytes, and data retention exceeding 200 years.

Memory IC Feature Summary

• Dual-mode operation supporting both Transmit-Only mode for monitor identification and Bidirectional mode for full read/write access via I²C interface
• Hardware write-protect pin combined with flexible software-based write protection control fuse for enhanced data security
• Self-timed write cycle with auto-erase capability and page-write buffer allowing sequential storage of up to eight bytes

Memory IC Applications

• Enhanced EDID (E-EDID) memory for display monitors
• Monitor identification systems utilizing DDC1 and DDC2 interfaces
• Storage of configuration and control information requiring serial transmission

Memory IC Procurement Notes

Verify the specific suffix 'I/P' confirms Industrial temperature range (-40°C to +85°C) and PDIP packaging. Confirm RoHS compliance status matches project requirements. Ensure VCC supply voltage aligns with the specified 2.5V to 5.5V operational limits before integration.

Memory IC Selection Notes

Select this component when dual-mode functionality is required for display applications. It is suitable for designs needing robust ESD protection exceeding 4000V. Consider the 8-byte page buffer for efficient data writing operations compared to byte-only writes.

Memory IC Part Context

This part belongs to the 24LCS22A series of serial EEPROMs designed specifically for VESA Display Data Channel standards. It integrates high-voltage generation circuitry internally, eliminating the need for external charge pumps typically required by other EEPROM families.

Memory IC Replacement Considerations

Direct replacements include the 24LC22A or 24AA22A for standard I²C applications without dual-mode requirements. For surface mount equivalents, consider the 24LCS22A-I/SN variant.