DS225E

Specialized ICS Overview

The DS225E is a nonvolatile static RAM (NVSRAM) integrated circuit manufactured by Analog Devices Inc. / Maxim Integrated. It provides 64 kbit of storage capacity organized as 8k x 8 bits with an 8-bit data bus width. The device utilizes a parallel interface and features an EDIP-28 package designed for through-hole mounting. It operates within a supply voltage range of 4.75 V to 5.25 V and supports access times of 200 ns. The component functions across a commercial temperature range from 0°C to +70°C, drawing a maximum operating current of 75 mA.

Specialized ICS Feature Summary

• Combines SRAM speed with nonvolatile memory retention using battery backup or internal charging.

Specialized ICS Applications

• Industrial control systems requiring persistent data storage
• Embedded applications needing configuration parameter retention
• Data logging systems preserving critical operational states

Specialized ICS Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical characteristics and package variations. Confirm RoHS compliance status directly with the supplier, as environmental certifications may vary by production batch. Ensure the EDIP-28 through-hole footprint matches your PCB layout requirements before finalizing procurement orders.

Specialized ICS Selection Notes

Select this component when a parallel interface NVSRAM solution is required for through-hole assembly. The 200 ns access time suits moderate-speed embedded applications. Consider the 64 kbit capacity limits for data storage needs. Verify that the 4.75 V to 5.25 V operating voltage aligns with the system power rail specifications.

Specialized ICS Part Context

This part belongs to the DS1225/DS225 family of nonvolatile SRAMs. These devices integrate fast static RAM with nonvolatile storage capabilities, typically utilizing a lithium battery or supercapacitor to maintain data during power loss. The family is designed for applications where volatile memory speed is needed alongside permanent data retention without complex write cycles.

Specialized ICS Replacement Considerations

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