23LCV02M-I/P

Memory IC Overview

The Microchip Technology 23LCV02M-I/P is a 2-Mbit (256K x 8-bit) serial static random-access memory device. It operates within a voltage range of 2.2V to 3.6V and supports industrial temperature ranges from -40°C to +85°C. The component utilizes a Serial Peripheral Interface (SPI) compatible architecture, with support for Serial Dual Interface (SDI) and Serial Quad Interface (SQI) modes to enable higher data throughput at clock frequencies up to 143 MHz. Key electrical characteristics include a maximum active read current of 10 mA at 143 MHz and a typical standby current of 70 µA. The device features an external battery backup pin (VBAT) for non-volatile operation and includes built-in Error Correction Code (ECC) logic.

Memory IC Feature Summary

• Supports SPI, SDI, and SQI communication protocols for flexible interface configurations.
• Includes an external battery backup input to maintain data retention during power loss.
• Integrates on-chip Error Correction Code (ECC) logic to enhance data reliability.
• Offers user-selectable page sizes for optimized byte, page, or sequential access operations.

Memory IC Applications

• Data logging systems requiring persistent storage with low power consumption
• Industrial control applications needing reliable memory in harsh environments
• Embedded systems utilizing high-speed serial interfaces for rapid data transfer

Memory IC Procurement Notes

Verify the specific ordering suffix 'I/P' corresponds to the Industrial temperature grade (-40°C to +85°C) and the 14-lead PDIP package type. Confirm that the 23LCV02M variant is selected over the 23AA02M, as the former explicitly supports the required external battery backup functionality via the VBAT pin. Ensure compatibility with the host system's voltage levels and serial interface requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when non-volatile data retention is critical and the application requires a wider operating voltage range than standard SRAMs provide. The 23LCV02M is suitable for designs where battery backup is preferred over flash memory due to unlimited write cycles and zero write time. Consider the 14-pin package constraints and ensure the PCB layout accommodates the additional VBAT and NC pins compared to the 8-pin alternative.

Memory IC Part Context

This part belongs to the 23XX02M family of 2-Mbit serial SRAM devices manufactured by Microchip Technology. It shares architectural similarities with the 23AA02M but differs in voltage specifications and feature sets. The 23LCV02M specifically targets applications requiring robust data retention through external battery support, distinguishing it from lower-voltage variants that lack this capability.

Memory IC Replacement Considerations

The 23AA02M serves as a related variant within the same family; however, it lacks the external battery backup support and operates at a lower minimum voltage. Direct substitution requires verifying if the battery backup feature is necessary for the specific application design.