23LCV1024-E/ST

Memory IC Overview

The Microchip Technology 23LCV1024-E/ST is a 1 Mbit (128K x 8) Serial SRAM device housed in an 8-lead SOIC package. It operates within a supply voltage range of 2.5 V to 5.5 V and supports industrial temperature conditions from -40°C to +85°C. The component features a SPI-compatible bus interface with a maximum clock frequency of 20 MHz and includes support for SDI mode. Key electrical characteristics include a read current of 3 mA at 5.5 V and 20 MHz, and a standby current of 4 µA at +85°C.

Memory IC Feature Summary

• Supports external battery backup via the VBAT pin to maintain data when VCC falls below the trip point.
• Enables unlimited read and write cycles without write time delays.
• Provides flexible memory access through Byte, Page, and Sequential operation modes.

Memory IC Applications

• Data logging systems requiring non-volatile-like retention capabilities
• Microcontroller-based embedded applications needing fast random access memory
• Industrial control units operating in extended temperature environments

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature range (-40°C to +125°C) as defined by Microchip's specific part numbering conventions, distinct from the Industrial range covered in the provided datasheet. Confirm the 'ST' suffix indicates the 8-lead SOIC package. Ensure compatibility with system voltage levels and SPI protocol requirements before procurement.

Memory IC Selection Notes

Select this component when high-speed serial access is required alongside data retention during power loss. The 23LCV1024 offers faster performance than EEPROM alternatives while providing battery-backed persistence. Consider the 8-lead SOIC package for surface-mount assembly constraints. Evaluate the need for SDI mode if higher throughput is necessary compared to standard SPI operations.

Memory IC Part Context

This device belongs to the 23LCV1024 family of Serial SRAMs manufactured by Microchip Technology. It shares architectural similarities with other members like the 23LCV512 but provides double the storage capacity. The series is designed for applications demanding rapid data access speeds and reliability in harsh environments, utilizing low-power CMOS technology.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the source material.

Memory IC FAQ

How does the device handle data retention during power failure?

The 23LCV1024 uses an internal switch to automatically transfer power from VCC to the VBAT pin when VCC drops below the trip point, maintaining SRAM contents.

What is the maximum clock frequency for SPI operations?

The maximum clock frequency supported by the 23LCV1024 is 20 MHz.