23LC1024-I/SN

Memory IC Overview

The Microchip Technology 23LC1024-I/SN is a 1 Mbit (128K x 8-bit) Serial Static Random Access Memory device. It features an SPI-compatible bus interface supporting SDI and SQI modes with a maximum clock frequency of 20 MHz. The component operates within a supply voltage range of 2.5V to 5.5V and supports an industrial temperature range of -40°C to +85°C. It utilizes low-power CMOS technology, offering unlimited read/write cycles and zero write time.

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 mode operations for efficient memory access

Memory IC Applications

• Microcontroller system memory expansion
• Data logging applications requiring fast random access
• Industrial control systems needing reliable volatile storage
• Embedded devices utilizing serial peripheral interfaces

Memory IC Procurement Notes

Verify the ordering suffix 'SN' corresponds to the 8-lead SOIC package. Confirm the 'I' suffix indicates the Industrial temperature grade (-40°C to +85°C). Ensure the specific part number matches the required voltage range of 2.5V to 5.5V. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Memory IC Selection Notes

Select this component when expanding microcontroller memory via a serial interface is required. It is suitable for applications needing high-speed random access without the complexity of parallel buses. Consider the 23LC1024T variant if tape-and-reel packaging is preferred for automated assembly processes.

Memory IC Part Context

This device belongs to the 23A1024/23LC1024 family of 1 Mbit Serial SRAMs. The 'LC' designation specifies the 2.5V to 5.5V operating voltage range, distinguishing it from the 'A' variant which supports lower voltages. The 'SN' suffix identifies the 8-lead Small Outline Integrated Circuit package type.

Memory IC Replacement Considerations

The 23LC1024T-I/SN is a direct functional equivalent available in tape-and-reel packaging. Other variants in the series include the 23LC512 for smaller capacity needs or the 23A1024 for lower voltage applications.