23A1024T-I/ST

Memory IC Overview

The Microchip Technology 23A1024T-I/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 SPI-compatible bus interface with a maximum clock frequency of 20 MHz. It features SDI (dual) and SQI (quad) interface compatibility for enhanced data rates. The device is housed in an 8-lead TSSOP package.

Memory IC Feature Summary

• Supports unlimited read and write cycles with zero write time
• Enables high-speed data transfer via SDI and SQI modes alongside standard SPI
• Provides flexible memory access through byte, page, and sequential operation modes

Memory IC Applications

• Microcontroller system data storage
• Real-time data logging applications
• Configuration parameter storage in embedded systems

Memory IC Procurement Notes

Verify the specific ordering suffix 'T' corresponds to the tape and reel packaging format required for your assembly line. Confirm that the 'I' designation aligns with the necessary industrial temperature operating range for your environment. Ensure the voltage supply matches the 1.7V to 2.2V specification strictly, as this variant differs from the wider voltage range models.

Memory IC Selection Notes

Select this part when low-voltage operation between 1.7V and 2.2V is required. Choose this model over the 23LC1024 series if the application operates below 2.5V. Consider the TSSOP-8 package for surface mount constraints. Verify that the master controller supports the desired serial interface mode, whether SPI, SDI, or SQI, to utilize the full performance capabilities.

Memory IC Part Context

This component belongs to the 23A1024 family of 1 Mbit Serial SRAM devices manufactured by Microchip Technology. It shares functional similarities with the 23LC1024 but is distinguished by its lower voltage operating range. The family offers non-volatile-like convenience with volatile speed, designed for integration into compact electronic systems requiring reliable temporary data retention.

Memory IC Replacement Considerations

The 23LC1024T-I/ST serves as a direct pin-compatible alternative, provided the system voltage exceeds 2.5V. Other members of the 23A1024 family may be considered if different package types are needed.