23LC1024-E/SN

Memory IC Overview

The Microchip Technology 23LC1024-E/SN is a 1 Mbit (128K x 8) Serial Static Random Access Memory device. It operates within a supply voltage range of 2.5 V to 5.5 V and supports an automotive temperature range from -40°C to +125°C. The device features a maximum clock frequency of 16 MHz in Extended Industrial mode and utilizes a Serial Peripheral Interface (SPI) compatible bus. It also supports Serial Dual Interface (SDI) and Serial Quad Interface (SQI) modes for increased data throughput.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interface protocols with unlimited read/write cycles
• Operates across an extended industrial temperature range suitable for automotive environments
• Provides low-power CMOS technology with standby current specifications
• Includes byte, page, and sequential operation modes for flexible data access

Memory IC Applications

• Automotive embedded systems requiring high-reliability memory
• Industrial control applications operating in extreme temperatures
• Microcontroller external cache expansion
• Data logging systems needing fast random access

Memory IC Procurement Notes

Verify the specific suffix 'E' confirms the extended industrial temperature rating (-40°C to +125°C) and the 'SN' indicates the 8-lead SOIC package. Confirm the maximum clock frequency requirement aligns with the 16 MHz limit for this temperature grade. Ensure the design accounts for the 2.5 V to 5.5 V supply voltage range. Check for RoHS compliance status as indicated in official documentation.

Memory IC Selection Notes

Select this component when an application requires non-volatile-like speed without refresh cycles but needs volatile storage characteristics. The 23LC1024-E/SN is appropriate for designs demanding wide voltage tolerance and robust thermal performance. Consider the 16 MHz clock limitation for the E-temp variant compared to the I-temp variant's higher speed. Evaluate if the SOIC package fits the board layout constraints.

Memory IC Part Context

This part belongs to the 23LC1024 series of 1 Mbit Serial SRAM devices manufactured by Microchip Technology. The series includes variants with different temperature grades and packaging options. The 'E' designation specifically denotes the Extended Industrial temperature range, distinguishing it from the standard Industrial 'I' grade which supports higher clock frequencies.

Memory IC Replacement Considerations

The 23LC1024-I/SN is a pin-compatible alternative offering a higher clock frequency of 20 MHz but limited to the Industrial temperature range (-40°C to +85°C). Verify that the reduced thermal capability of the I-grade part meets the environmental requirements of the target application before substitution.