AT25DF161-SSH-T

Memory IC Overview

The AT25DF161-SSH-T is a 16-Megabit SPI Serial Flash Memory device designed for high-volume consumer applications. It operates on a single 2.7V to 3.6V supply and supports SPI Modes 0 and 3 with RapidS operation up to 100 MHz. The architecture includes uniform 4-Kbyte, 32-Kbyte, and 64-Kbyte block erase options, sector protection, and a 128-byte OTP security register. It features dual-input program and dual-output read capabilities, low power consumption, and industrial temperature range compliance.

Memory IC Feature Summary

• Supports Dual-Input Program and Dual-Output Read operations for enhanced throughput
• Flexible erase architecture optimized for code and data storage applications
• Hardware-controlled sector protection and permanent sector lockdown mechanisms
• Integrated 128-byte programmable One-Time Programmable (OTP) security register

Memory IC Applications

• Code shadowing from Flash memory into embedded or external RAM for execution
• Data storage applications requiring flexible erase granularity
• Secure applications needing unique device serialization or locked key storage

Memory IC Procurement Notes

Verify the specific ordering suffix 'SSH-T' against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements of 2.7V to 3.6V. Confirm that the required SPI clock frequency does not exceed the specified limits for the selected command mode. Check for any recent product change notices regarding pinout or electrical characteristics.

Memory IC Selection Notes

Select this component when a 16-Mbit density is required with strict 3V system constraints. It is suitable for designs needing hardware-level security features like sector lockdown and OTP registers. Consider its dual I/O capabilities if higher data throughput is necessary without increasing clock speeds. Verify that the SOIC-N package dimensions fit the PCB layout constraints.

Memory IC Part Context

This part belongs to the AT25DF series of serial flash memories from Renesas Electronics. It is designed as a drop-in replacement for similar density devices in consumer electronics where code execution and data retention are critical. The series emphasizes flexibility in erase blocks and robust protection features for secure firmware storage.

Memory IC Replacement Considerations

Check for AT25DL161 or AT25FF161A variants if wider voltage ranges or different performance metrics are needed. Ensure pin compatibility and command set adherence when substituting with other SPI NOR flash devices from different manufacturers.