23A1024T-I/SN

Memory IC Overview

The Microchip Technology 23A1024T-I/SN is a 1 Mbit Serial Static Random Access Memory (SRAM) device. It features an SPI-compatible bus interface supporting SDI and SQI modes with a maximum clock frequency of 20 MHz. The memory organization is 128K x 8 bits, utilizing an 8-lead SOIC package. Operating voltage ranges from 1.7V to 2.2V, and it supports industrial temperature conditions from -40°C to +85°C.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI bus interfaces for flexible data transfer rates
• Provides unlimited read and write cycles with zero write time
• Operates on low-power CMOS technology with standby current as low as 4 µA
• Includes byte, page, and sequential operation modes

Memory IC Applications

• Data logging in microcontroller systems
• Configuration storage for embedded devices
• Backup power supply applications
• Industrial control system memory

Memory IC Procurement Notes

Verify the specific suffix 'SN' corresponds to the 8-lead SOIC package type required for your PCB layout. Confirm that the 'I' designation matches the necessary industrial temperature range specifications for your operational environment. Ensure the voltage supply aligns with the 1.7V to 2.2V operating window defined for the 23A series.

Memory IC Selection Notes

Select this component when a non-volatile-like SRAM solution with high-speed serial access is needed within a low voltage constraint. It is suitable for designs requiring frequent write operations without endurance limitations. Consider the SOIC package dimensions during footprint design. Verify compatibility with the master controller's SPI or dual/quad I/O capabilities.

Memory IC Part Context

This part belongs to the 23A1024/23LC1024 family of 1 Mbit Serial SRAMs. The 23A variant specifically targets lower voltage applications compared to the 23LC counterpart. Both share identical pinouts and functional characteristics but differ in their supported supply voltage ranges.

Memory IC Replacement Considerations

The 23LC1024T-I/SN serves as a direct functional replacement if the application can accommodate a higher supply voltage range of 2.5V to 5.5V. Other members of the 23A1024 family may be considered based on package preference.