Renesas M30042040054X0PWAY

Overview

M30042040054X0PWAY from Renesas is a 4Mb serial STT-MRAM non-volatile memory IC with QSPI interface, 54MHz DDR timing, 1.71–2.0V or 2.7–3.6V supply, industrial-plus temperature range (−40°C to +105°C), and 8-pad DFN (WSON) package - deployed in real-time industrial control systems requiring persistent SRAM-equivalent performance without write endurance limits.

For engineers reviewing the M30042040054X0PWAY datasheet, M30042040054X0PWAY pinout, M30042040054X0PWAY application, or M30042040054X0PWAY equivalent, key selection criteria include its dual-voltage support, hardware/software write protection, 256-byte augmented storage array, JEDEC reset compliance, and guaranteed 10¹⁵ write cycles with 20-year data retention at 105°C.

Technical Context

This MRAM implements spin-transfer torque (STT) technology on a 40nm pMTJ process, delivering true random-access read/write with SRAM-compatible timing and Flash-level non-volatility. It supports Quad SPI (4-4-4) in both SDR and DDR modes, with command/address/data transferred across four I/O lines using both clock edges in DDR mode.

The device integrates dedicated registers for status, configuration, device identification (64-bit unique ID), user-programmable serial number, and augmented storage protection. Its architecture includes eXecute-In-Place (XIP) capability, Deep Power Down (3µs entry, 400µs exit), and Hibernate (3µs entry, 450µs exit) modes - all preserving data and register state without external backup power.

Key Specifications

Pinout & Package

8-pad DFN (WSON) package, 5.0 mm × 6.0 mm, moisture sensitivity level 3, lead-free and RoHS/REACH compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with FM25V04-G and CY14B104N-ZSP25XI, M30042040054X0PWAY uniquely combines QSPI DDR speed, dual-voltage support, industrial-plus temperature rating, and integrated augmented storage - making it optimal for new SPI-based embedded designs demanding robustness and scalability.

Availability

M30042040054X0PWAY is available at Aetrix Electronics and suitable for factory automation, medical diagnostics, and industrial networking applications requiring stable component supply, long-lifecycle assurance, and guaranteed traceable sourcing.

Supply support for M30042040054X0PWAY 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 is designed as Persistent SRAM (P-SRAM) replacements - targeting applications needing byte-addressable, high-endurance, low-latency non-volatile memory without Flash's erase constraints or battery dependencies.

FAQ

What voltage ranges does the M30042040054X0PWAY support?

The M30042040054X0PWAY supports two independent supply ranges: 1.71 V to 2.00 V for 1.8 V systems, and 2.70 V to 3.60 V for 3.3 V systems. Both ranges are fully specified across the −40°C to +105°C operating temperature. The device automatically adapts internal regulation and timing - no external voltage translation or configuration is required when switching between these rails. This dual-voltage capability makes M30042040054X0PWAY suitable for mixed-voltage industrial PCBs.

Does the M30042040054X0PWAY require an external capacitor for non-volatility?

No, the M30042040054X0PWAY does not require an external capacitor. As a magnetoresistive RAM (MRAM), it stores data via magnetic tunnel junction (pMTJ) states, which retain information inherently without power or supplemental energy storage. Unlike nvSRAM devices that rely on external capacitors to back up SRAM during power loss, M30042040054X0PWAY guarantees instantaneous, unconditional non-volatility on every write - verified across 10¹⁵ cycles and 20 years at 105°C.

How is the 256-byte Augmented Storage Array used in the M30042040054X0PWAY?

The M30042040054X0PWAY includes a dedicated 256-byte Augmented Storage Array, mapped to addresses 000000h–0000FFh and divided into eight 32-byte programmable sections. Each section can be individually write-protected via configuration registers. This area is commonly used for factory-calibrated sensor offsets, device-specific cryptographic keys, MAC addresses, or firmware version stamps - all stored with the same endurance and retention as main memory, but isolated from application code space.

What SPI modes and clock rates does the M30042040054X0PWAY support?

The M30042040054X0PWAY supports SPI Mode 0 (CPOL = 0, CPHA = 0) and SPI Mode 3 (CPOL = 1, CPHA = 1) in Single Data Rate (SDR), and SPI Mode 0 only in Double Data Rate (DDR). In DDR mode, it operates at 54 MHz clock frequency, achieving 432 Mbps effective throughput. Command, address, and data are transmitted using 1-4-4 or 4-4-4 QSPI configurations - enabling high-bandwidth firmware updates and real-time data streaming without CPU intervention.

Is the M30042040054X0PWAY pin-compatible with other members of the Mxxxx204 family?

Yes, the M30042040054X0PWAY shares identical pinout, package footprint (8-pad DFN WSON), and signal assignment with all Mxxxx204 variants - including M1004204, M3008204, and M3016204 - regardless of density (4Mb/8Mb/16Mb) or speed grade (54MHz/108MHz). This allows drop-in replacement during design iteration or volume procurement, provided voltage, temperature, and timing requirements remain aligned with the target application.