23A1024-E/SN

Memory IC Overview

The Microchip Technology 23A1024-E/SN is a 1 Mbit (128K x 8) Serial SRAM device. It operates within a supply voltage range of 1.7 V to 2.2 V and supports an extended industrial temperature range from -40°C to +125°C. The component utilizes a Serial Peripheral Interface (SPI) compatible bus with standard, dual (SDI), and quad (SQI) I/O modes. Maximum clock frequency is rated at 16 MHz for the E-temp grade. It features unlimited read/write cycles, zero write time, and low standby current consumption.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI interface modes for flexible data transfer rates
• Provides unlimited read and write cycles with zero write time
• Operates in Byte, Page, and Sequential access modes
• Designed for high reliability in extended industrial environments

Memory IC Applications

• Data logging systems requiring non-volatile-like temporary storage
• Embedded microcontroller memory expansion via SPI bus
• Industrial control applications operating in extreme temperatures
• Automotive electronic modules requiring extended thermal stability

Memory IC Procurement Notes

Verify that the specific suffix 'E' corresponds to the extended temperature grade (-40°C to +125°C) rather than the industrial grade. Confirm the 'SN' suffix indicates the SOIC package type. Ensure the design accommodates the 1.7V to 2.2V supply voltage constraints. Check datasheet specifications for maximum clock frequency limitations associated with the automotive temperature rating.

Memory IC Selection Notes

Select this component when an application requires serial SRAM with extended temperature capability and low voltage operation. Compare against the 23LC1024 series if a wider voltage range (2.5V to 5.5V) is necessary instead of the 1.8V optimized range. Consider the package availability and pin compatibility during PCB layout planning.

Memory IC Part Context

This part belongs to the 23A1024/23LC1024 family of 1 Mbit Serial SRAMs manufactured by Microchip Technology. The 23A series is specifically characterized for lower voltage operation compared to the 23LC series. Both families share identical functional interfaces and instruction sets, differing primarily in electrical characteristics and temperature ratings.

Memory IC Replacement Considerations

The 23LC1024-E/SN serves as a direct functional substitute with a wider voltage range. Other variants within the 23A1024 series may be considered if different temperature grades or packaging options are required.