23LCV512-I/ST

Memory IC Overview

The Microchip Technology 23LCV512-I/ST is a 512-Kbit Serial SRAM device housed in an 8-lead TSSOP package. It operates within a supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 20 MHz. The memory organization is 64K x 8 bits, featuring SPI-compatible bus interfaces with optional SDI mode for dual I/O operations. Designed for industrial applications, it functions reliably across a temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports external battery backup via the VBAT pin to maintain data during main power loss
• Enables unlimited read and write cycles without degradation
• Provides zero write time characteristics for immediate data storage
• Offers flexible access modes including Byte, Page, and Sequential operations

Memory IC Applications

• Industrial instrumentation requiring persistent configuration storage
• Data logging systems needing high-speed non-volatile retention
• Black box recording devices for critical event tracking
• Embedded systems utilizing microcontrollers with SPI ports

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Ensure the host system voltage levels are compatible with the specified operating range before integration into the design.

Memory IC Selection Notes

Select this component when application requirements demand high-speed random access combined with data retention capabilities. It serves as a suitable alternative to traditional EEPROM or Flash where write endurance and speed are critical constraints. Consider the available package options based on board space limitations and thermal management needs.

Memory IC Part Context

This device belongs to the 23LCV512 series of serial SRAMs manufactured by Microchip Technology. It shares functional similarities with other members of the family but differs in specific interface configurations and packaging variants. The series is designed to bridge the gap between volatile RAM speed and non-volatile storage reliability.

Memory IC Replacement Considerations

Direct substitutes include the 23LCV512-I/SN (SOIC package) and 23LCV512-I/P (PDIP package). Verify pin compatibility and electrical specifications before swapping packages. Other capacity variants within the same product line may require firmware adjustments due to address mapping differences.

Memory IC FAQ

How does the device handle data retention when VCC drops below the trip point?

An internal switch automatically connects the SRAM array to the external backup supply connected to the VBAT pin, maintaining data integrity until VCC recovers.

What is the maximum clock frequency supported by the SPI interface?

The device supports a maximum clock frequency of 20 MHz for both SPI and SDI modes of operation.