23LC1024-E/P

Memory IC Overview

The Microchip Technology 23LC1024-E/P is a 1 Mbit (128K x 8) Serial Static Random Access Memory device. It operates within a supply voltage range of 2.5 V to 5.5 V and supports an automotive temperature range from -40°C to +125°C. The component utilizes a Serial Peripheral Interface (SPI) compatible bus with a maximum clock frequency of 16 MHz for the E-temp grade. It features SDI and SQI interface compatibility, unlimited read/write cycles, and zero write time. The device is housed in an 8-lead PDIP 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
• Operates across an extended automotive temperature range (-40°C to +125°C)
• Includes Byte, Page, and Sequential modes for efficient memory access

Memory IC Applications

• Automotive embedded systems requiring high-reliability volatile storage
• Industrial control applications needing fast random access data buffering
• Microcontroller-based designs expanding on-chip RAM capacity
• Edge devices utilizing serial communication protocols for data logging

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the maximum clock frequency specification aligns with system timing requirements, as the E-temp variant is limited to 16 MHz compared to other grades. Ensure power supply voltages remain strictly within the 2.5 V to 5.5 V operational window to maintain device reliability and prevent electrical overstress during operation.

Memory IC Selection Notes

Select this component when an application demands non-volatile-like speed without the complexity of flash programming or DRAM refreshing. The 23LC1024-E/P is suitable for environments requiring robust performance under thermal stress. Consider the trade-off between the lower 16 MHz clock speed of the E-grade versus higher-speed industrial variants if system latency permits. Verify pinout compatibility with existing PCB layouts before finalizing the design.

Memory IC Part Context

This part belongs to the 23LC1024 series of 1 Mbit Serial SRAMs manufactured by Microchip Technology. The series includes variants with different voltage ranges and temperature ratings, such as the 23A1024 for low-voltage applications. The 'E' designation specifically indicates the automotive-grade temperature qualification, while '/P' denotes the through-hole PDIP packaging option available for this family.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: 23LC1024-I/ST, 23LC1024T-I/ST.