23LC1024T-E/SN

Memory IC Overview

The Microchip Technology 23LC1024T-E/SN is a 1 Mbit (128K x 8) Serial Static Random Access Memory device. It operates within a supply voltage range of 2.5V to 5.5V and supports an industrial temperature range of -40°C to +125°C. The component utilizes a Serial Peripheral Interface (SPI) compatible bus with a maximum clock frequency of 16 MHz for the E-temp grade. It features SDI and SQI interface compatibility, allowing for dual and quad I/O operations to enhance data throughput.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interfaces for flexible communication speeds
• Provides unlimited read and write cycles without refresh requirements
• Includes HOLD functionality to pause serial sequences in SPI/SDI modes
• Operates across a wide automotive-grade temperature range

Memory IC Applications

• Automotive embedded systems requiring high-reliability memory
• Industrial control applications with extended temperature needs
• Microcontroller external cache expansion
• Data logging in harsh environments

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and the 'SN' suffix indicates the 8-lead SOIC package. Confirm the maximum clock frequency specification is 16 MHz for this specific grade, as opposed to 20 MHz for Industrial parts. Ensure the datasheet revision matches the required electrical characteristics for your design.

Memory IC Selection Notes

Select this part when an application requires SRAM performance with automotive reliability standards. The 23LC1024T-E/SN is suitable for designs needing 1Mbit capacity in a surface-mount SOIC package. Consider the 16 MHz clock limit for the E-temp variant compared to higher speeds available in other grades. Verify power supply constraints align with the 2.5V to 5.5V operating range.

Memory IC Part Context

This component belongs to the 23LC1024 family of 1 Mbit Serial SRAM devices manufactured by Microchip Technology. The family includes variants with different temperature ratings and package options. The 'E' designation specifically denotes the Automotive grade, ensuring compliance with stricter environmental and reliability standards compared to standard Industrial or Commercial versions.

Memory IC Replacement Considerations

Direct substitutes include other 23LC1024 variants such as 23LC1024-I/SN for Industrial temperature ranges. Cross-reference pinouts and voltage levels when replacing with competitor SRAMs. Ensure any replacement supports the required SPI/SDI/SQI protocols and fits the 8-lead SOIC footprint.