Renesas M30162040054X0ISAY

Overview

M30162040054X0ISAY from Renesas is a 16Mbit serial STT-MRAM non-volatile memory IC with QSPI interface, 54MHz DDR timing, industrial temperature range (−40°C to +85°C), and 8-pin SOIC package. It delivers SRAM-compatible read/write latency, zero write endurance limit, and data retention exceeding 20 years - deployed in factory automation controllers for real-time parameter logging without battery backup.

For engineers reviewing the M30162040054X0ISAY datasheet, M30162040054X0ISAY pinout, M30162040054X0ISAY application, or M30162040054X0ISAY equivalent, key selection criteria include its 1.71–2.0V/2.7–3.6V dual-voltage support, hardware/software write protection, 256-byte augmented storage array, and JEDEC Reset compliance - critical for deterministic boot and field-upgrade resilience in industrial edge nodes.

Technical Context

The M30162040054X0ISAY implements a 40nm pMTJ spin-transfer torque MRAM array with quad SPI (QPI) interface supporting 1-4-4 command-address-data nomenclature. Its architecture includes dedicated command/control logic, row/column decoders, and high-voltage generator enabling true random-access reads/writes at sub-100ns latency without erase cycles.

It supports both Single Data Rate (SDR) and Double Data Rate (DDR) modes on the same physical interface, with DDR operating at 54MHz using both clock edges for address/data transfer. The device integrates status, configuration, identification, and augmented storage registers mapped into separate address space - all accessible via standard SPI instructions including XIP (eXecute-In-Place) for reduced command overhead.

Key Specifications

Pinout & Package

8-pin SOIC package (5.2mm × 5.2mm), RoHS-compliant, surface-mountable with standard reflow profile. Pin 1 marked by notch or dot; pin 1 corner located at bottom-left when viewed top-side with marking side up.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial non-volatile memory applications.

Compared with FM25V10-G and CY14B108N-ZSP25XI, the M30162040054X0ISAY offers 2× higher density than the F-RAM, 100% pin-compatible QSPI footprint versus the parallel nvSRAM, and unique features like XIP, augmented storage, and dual-voltage support - making it the optimal choice for new industrial designs prioritizing scalability, firmware agility, and power efficiency.

Availability

M30162040054X0ISAY is available at Aetrix Electronics and suitable for factory automation controllers, medical diagnostic imaging modules, and industrial Ethernet switches requiring stable component supply across extended product lifecycles.

Supply support for M30162040054X0ISAY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.

The Mxxxx204 family was designed as Persistent SRAM (P-SRAM) replacements - delivering true non-volatility with SRAM-like performance for mission-critical industrial and medical systems where data integrity and deterministic timing are non-negotiable.

FAQ

What voltage ranges does the M30162040054X0ISAY support?

The M30162040054X0ISAY supports two independent operating voltage ranges: 1.71V to 2.00V for 1.8V systems and 2.70V to 3.60V for 3.3V systems. Both ranges are fully specified across the full industrial temperature range (−40°C to +85°C). The device automatically adapts internal regulation and timing - no external configuration is needed to switch between voltage domains. This dual-rail capability makes the M30162040054X0ISAY suitable for mixed-voltage designs without level-shifting circuitry.

Does the M30162040054X0ISAY require a battery or capacitor for data retention?

No, the M30162040054X0ISAY does not require any external energy storage for data retention. As a spin-transfer torque MRAM device, it retains data indefinitely (≥20 years) without power, eliminating batteries, supercapacitors, or backup power circuits. All memory contents - including main array, augmented storage, and configuration registers - persist through power loss, cold starts, and deep power down modes. This intrinsic non-volatility is fundamental to the MRAM technology used in the M30162040054X0ISAY.

What is the purpose of the Augmented Storage Array in the M30162040054X0ISAY?

The M30162040054X0ISAY includes a dedicated 256-byte Augmented Storage Array, physically and logically separate from the main 16Mbit memory. It is divided into eight 32-byte sections, each individually programmable and write-protectable via configuration bits. This area is commonly used to store immutable values such as calibration coefficients, cryptographic keys, or device-specific identifiers - ensuring they remain isolated from firmware updates or bulk memory operations performed on the main array.

Can the M30162040054X0ISAY operate in Quad SPI mode at 54MHz DDR?

Yes, the M30162040054X0ISAY fully supports Quad SPI (QPI) mode with Double Data Rate timing at 54MHz. In this configuration, the device uses all four I/O pins (IO[0]–IO[3]) for command, address, and data transfer on both rising and falling clock edges - achieving an effective throughput of 108MB/s. This mode is enabled via configuration register settings and requires host controller support for QPI instruction set and DDR clock edge sampling, as defined in the M30162040054X0ISAY datasheet.

How does hardware write protection work on the M30162040054X0ISAY?

Hardware write protection on the M30162040054X0ISAY is implemented via the WP# pin (Pin 2). When WP# is driven low and the WP#EN bit (SR[7]) in the Status Register is set to '1', the status register becomes read-only - preventing modification of protection settings, configuration bits, and memory array write enables. This pin-based lock operates independently of software protection and remains active even during power transitions, providing robust defense against accidental or malicious writes during system initialization or fault conditions.