23LCV1024-I/SN

Memory IC Overview

The Microchip Technology 23LCV1024-I/SN is a 1 Mbit Serial Static Random Access Memory (SRAM) device housed in an 8-lead SOIC package. It operates within a supply voltage range of 2.5V to 5.5V and supports industrial temperature conditions from -40°C to +85°C. The device features a SPI-compatible bus interface with a maximum clock frequency of 20 MHz and includes support for SDI (Serial Dual Interface) mode. Key electrical characteristics include a read current of 3 mA at 5.5V and 20 MHz, and a standby current of 4 µA at +85°C. The memory organization is 128K x 8-bit with a 32-byte page structure.

Memory IC Feature Summary

• Supports external battery backup via the VBAT pin to maintain data when main power drops below the trip point.
• Enables high-speed data transfer through SPI and SDI modes with a 20 MHz clock rate.
• Provides unlimited read and write cycles with zero write time for immediate data availability.

Memory IC Applications

• Data logging systems requiring non-volatile-like retention without flash complexity.
• Microcontroller cache expansion for applications with limited on-chip RAM.
• Industrial control systems needing reliable serial memory in harsh environments.

Memory IC Procurement Notes

Verify that the ordering suffix 'SN' corresponds to the 8-lead SOIC package variant. Confirm the 'I' suffix indicates the Industrial temperature grade (-40°C to +85°C). Ensure the design accounts for the 2.5V to 5.5V VCC range and proper VBAT pin handling if battery backup is utilized. Cross-reference the specific datasheet revision DS25156A for final electrical tolerances.

Memory IC Selection Notes

Select this component when a serial SRAM solution is required with dual I/O capabilities for increased throughput. It is suitable for designs needing wide voltage operation up to 5.5V. Consider the 8-lead SOIC form factor for surface-mount assembly constraints. Evaluate the need for battery backup functionality before choosing the VBAT-enabled variant over standard serial SRAMs.

Memory IC Part Context

This part belongs to the 23LCV1024 family of 1 Mbit Serial SRAMs manufactured by Microchip Technology. The family offers variations in package types including TSSOP and PDIP, and different temperature grades. The 'I' designation specifically denotes the industrial temperature range, distinguishing it from automotive or commercial variants within the broader product line.

Memory IC Replacement Considerations

Check for 23LCV1024-I/ST or 23LCV1024-I/P as direct package alternatives from the same manufacturer. Verify compatibility with existing SPI/SDI controller logic before substituting with competitor devices.