23A1024-E/ST

Memory IC Overview

The Microchip Technology 23A1024-E/ST is a 1 Mbit Serial SRAM device organized as 128K x 8 bits. It operates within a supply voltage range of 1.7V to 2.2V and supports an industrial temperature range from -40°C to +85°C. The component utilizes a 20 MHz maximum clock frequency for the E-temp grade and features SDI and SQI interface compatibility alongside standard SPI. It is housed in an 8-lead SOIC package.

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
• Includes Byte, Page, and Sequential operation modes
• Features low-power CMOS technology with standby current reduction

Memory IC Applications

• Microcontroller system memory expansion
• Data logging applications requiring high endurance
• Industrial control systems operating at elevated temperatures
• Automotive electronic modules

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the voltage range aligns with the target application's power supply specifications. Ensure the interface mode requirements are compatible with the master controller's capabilities before finalizing procurement.

Memory IC Selection Notes

Select this component when a non-volatile alternative is not required but high-speed serial access is needed. Compare against the 23LC1024 series if a wider voltage range or higher temperature rating is necessary. Consider the package availability and ensure the host system supports the desired serial protocol modes.

Memory IC Part Context

This part belongs to the 23A1024/23LC1024 family of 1 Mbit Serial SRAM devices. The 'E' suffix indicates an extended temperature range suitable for automotive environments, while the 'ST' suffix denotes the 8-lead SOIC package. It shares functional similarities with the 23LC1024 but differs in voltage and thermal specifications.

Memory IC Replacement Considerations

The 23LC1024-E/ST serves as a direct functional replacement with a wider voltage range. Other 1 Mbit serial SRAMs may require interface adaptation. Verify pinout compatibility and timing parameters when substituting with components from other manufacturers.