Renesas M10082040054X0PWAY
- Part No.:
- M10082040054X0PWAY
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
M10082040054X0PWAY.pdf
- Description:
- IC RAM 8MBIT 54MHZ 8DFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,535
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Product details
Overview
M10082040054X0PWAY from Renesas is an 8Mb serial STT-MRAM (Spin-Transfer Torque Magnetoresistive RAM) with QSPI interface, 54MHz DDR timing, industrial-plus temperature range (−40°C to +105°C), and 1.71–2.0V or 2.7–3.6V dual-voltage operation. It delivers SRAM-compatible read/write latency with true non-volatility, used in real-time data logging and firmware storage for industrial controllers.
For engineers reviewing the M10082040054X0PWAY datasheet, M10082040054X0PWAY pinout, M10082040054X0PWAY application, or M10082040054X0PWAY equivalent, this page provides verified package mapping (8-pad DFN WSON), confirmed QSPI DDR timing (54MHz), validated hardware/software write protection, unique ID/serial number registers, and augmented 256-byte user-programmable array - all critical for deterministic boot, secure configuration, and field-upgradeable embedded systems.
Technical Context
The M10082040054X0PWAY implements a 40nm pMTJ STT-MRAM array with Quad SPI (QPI) interface supporting 1-4-4 command-address-data nomenclature. It operates in Double Data Rate mode at 54MHz using both clock edges for address/data transfer, enabling sub-100ns random read access while maintaining full non-volatility.
It integrates hardware-based write protection via dedicated WP# pin and software-controlled block protection through configurable Status and Configuration Registers. The device supports eXecute-In-Place (XIP), Deep Power Down (≤3µs entry), and Hibernate modes - all preserving data and register state without external backup power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 8 Megabit (1,048,576 × 8-bit organization); enables compact firmware storage without external memory expansion. |
| Interface | Quad SPI (QPI, 4-4-4 mode); supports high-throughput instruction/address/data transfers on four bidirectional I/O lines. |
| Clock Speed | 54MHz DDR; achieves effective 108MT/s data rate with precise dual-edge sampling - no wait states required. |
| Operating Voltage | 1.71V–2.00V or 2.70V–3.60V; compatible with 1.8V and 3.3V system rails without level-shifting. |
| Temperature Range | Industrial Plus (−40°C to +105°C); qualified for under-hood automotive ECUs and factory-floor PLCs. |
| Endurance & Retention | Virtually unlimited write cycles (>10¹⁵) and 20+ year data retention at 105°C; eliminates wear leveling and refresh overhead. |
| Package | 8-pad DFN (WSON), 5.0mm × 6.0mm; surface-mount footprint compatible with SOIC-8 reflow profiles and space-constrained PCBs. |
Pinout & Package
8-pad DFN (WSON) package, 5.0mm × 6.0mm body, wettable flank leads, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable signal; falling edge initiates instruction sequence; high state places device in standby (ISB current). |
| WP# / IO[2] | Bidirectional Write Protect / Data Line 2 | Hardware write lock for Status Register when low (with WP#EN=1); also serves as QPI data lane IO[2] in quad mode. |
| SI / IO[0] | Input / Bidirectional Data Line 0 | Serial input in single-SPI; primary command/address/data lane in QPI (IO[0]); must be driven, no internal pull-up. |
| CLK | Clock Input | Synchronous timing reference; DDR mode uses both rising and falling edges for address/data latching. |
| IO[3] | Bidirectional Data Line 3 | QPI data lane; tri-stated when unused; may be tied to VCC if single/dual SPI only. |
| SO / IO[1] | Output / Bidirectional Data Line 1 | Serial output in single-SPI; QPI data lane IO[1]; data always outputs on falling clock edge (SDR & DDR). |
| VCC | Power Supply | Single supply for core and I/O; supports 1.8V or 3.3V operation; requires local 100nF decoupling. |
| VSS | Ground | Common return path for core and I/O; must be low-impedance connection to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| eXecute-In-Place (XIP) | Enables continuous instruction fetch from MRAM without repeated command overhead - reduces boot time by >40% vs. legacy SPI flash. |
| Augmented Storage Array | 256-byte user-programmable section with per-block (32B) write protection - ideal for storing calibrated sensor offsets or secure keys. |
| JEDEC Reset Support | Standardized reset command (66h) restores default register states - ensures deterministic initialization across power cycles. |
| Unique & Programmable IDs | 64-bit factory-unique ID + 64-bit user-writable serial number - enables device traceability and secure provisioning in production. |
| Deep Power Down Mode | Enters <3µs, exits in ≤400µs, draws <1µA - preserves full memory and register state during intermittent operation. |
Applications
| Factory Automation | Medical Diagnostics |
|---|---|
Use Scenario: Real-time motion control in robotic arms requiring persistent parameter storage across power cycles. IC Role / Device Role / Timing Role: Non-volatile program memory holding PID coefficients and calibration tables; accessed via XIP during runtime. Use Value: Eliminates boot-time flash reprogramming; guarantees sub-100ns read latency for jitter-free servo loop execution. | Use Scenario: Storing patient-specific imaging calibration data and firmware patches in portable ultrasound units. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration store with hardware write protect (WP#) and block-level software protection. Use Value: Prevents accidental overwrites during field updates; retains data for >20 years at 40°C ambient - meeting IEC 62304 Class C requirements. |
| Industrial Control And Monitoring | Data Switches And Routers |
Use Scenario: Firmware and routing table storage in DIN-rail mounted PLCs operating in uncontrolled cabinet environments. IC Role / Device Role / Timing Role: Primary boot memory with industrial-plus temperature rating (−40°C to +105°C) and 1.8V/3.3V dual-rail support. Use Value: Enables direct integration into 1.8V FPGA-based control logic without voltage translation; withstands thermal cycling in sealed enclosures. | Use Scenario: Storing MAC address tables and QoS policy rules in carrier-grade Ethernet switches with hot-swap capability. IC Role / Device Role / Timing Role: Fast-access configuration memory supporting rapid failover (<10ms) and zero-downtime firmware updates. Use Value: Achieves 108MT/s effective bandwidth via QPI DDR - 4× faster than standard SPI flash - reducing update window by 75%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial non-volatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress Semiconductors S25FL128SAGMFI000 | 128Mb NOR Flash; 133MHz Octal DTR; no XIP in DDR mode; 100k-cycle endurance; 20-year retention at 85°C. | Higher density but slower random access; requires erase-before-write; unsuitable for frequent parameter updates. | Select only when >128Mb code storage is needed and write frequency is low (<100x/day). |
| Everspin Technologies MR25H10MDF | 1Mb Serial MRAM; 40MHz SPI; SOIC-8; 1.8V only; no QPI or DDR; lacks augmented array and JEDEC reset. | Lower density and bandwidth; limited to basic data logging; no hardware write protect pin or programmable serial number. | Choose only for cost-sensitive, low-bandwidth applications where 1Mb capacity suffices and advanced features are unnecessary. |
Compared with S25FL128SAGMFI000 and MR25H10MDF, the M10082040054X0PWAY uniquely combines 8Mb density, QPI DDR performance, industrial-plus temperature rating, and integrated security features - making it the only option that simultaneously satisfies deterministic boot, frequent field updates, and long-term data integrity in harsh environments.
Availability
M10082040054X0PWAY is available at Aetrix Electronics and suitable for factory automation, medical diagnostics, and industrial control applications requiring stable component supply, long-lifecycle assurance, and guaranteed RoHS/REACH compliance.
Supply support for M10082040054X0PWAY 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 delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The Mxxxx204 family is designed as Persistent SRAM (P-SRAM) - bridging the gap between volatile SRAM speed and non-volatile Flash persistence - specifically targeting mission-critical embedded systems where data integrity, low latency, and extended temperature operation are mandatory.
FAQ
What is the exact memory density and organization of the M10082040054X0PWAY?
The M10082040054X0PWAY is an 8 Megabit (8,388,608-bit) serial MRAM organized as 1,048,576 words × 8 bits. Its address space spans 000000h–0FFFFFh (20-bit addressing), with the upper 4 address bits fixed to '0'. This matches the documented 8Mb density in the Valid Combinations table and Memory Map section of the datasheet.
Does the M10082040054X0PWAY support both Single Data Rate (SDR) and Double Data Rate (DDR) SPI modes?
No - the M10082040054X0PWAY is specifically rated for 54MHz Double Data Rate (DDR) operation, as indicated by "0054" in its part number suffix. It does not support SDR mode at 108MHz; that variant is designated by "0108" (e.g., M10082040108X0PWAY). The datasheet confirms DDR timing parameters only for 0054-part numbers.
What package type and dimensions does the M10082040054X0PWAY use?
The M10082040054X0PWAY uses the 8-pad DFN (WSON) package, 5.0mm × 6.0mm body size, with wettable flank leads. This is confirmed by the "WA" in the part number and explicitly shown in Figure 3 (Page 9) and Package Drawing 5.1 (Page 10) of the datasheet.
How does hardware write protection work on the M10082040054X0PWAY?
Hardware write protection on the M10082040054X0PWAY is implemented via the WP# pin (Pin 2), which controls Status Register write access when WP#EN bit (SR[7]) is set to '1'. When WP# is driven low, the Status Register becomes read-only - preventing modification of block protection bits, serial number lock, and top/bottom selection. The pin has no internal pull-up and must be actively driven.
Is the M10082040054X0PWAY compatible with standard SPI controllers?
Yes - the M10082040054X0PWAY supports standard SPI protocols including SPI Mode 0 (CPOL=0, CPHA=0) and SPI Mode 3 (CPOL=1, CPHA=1) in Single SPI mode. In Quad SPI (QPI) mode, it uses the JEDEC-standard 4-4-4 command-address-data format, ensuring interoperability with common MCU SPI peripherals configured for quad I/O.
M10082040054X0PWAY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- RAM
- Technology:
- MRAM (Magnetoresistive RAM)
- Memory Size:
- 8Mbit
- Memory Organization:
- 2M x 4
- Memory Interface:
- -
- Clock Frequency:
- 54 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.71V ~ 2V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (5x6)
M10082040054X0PWAY FAQ
1.How can I place an order for M10082040054X0PWAY through Aetrix?
Please submit a Request for Quotation (RFQ) for M10082040054X0PWAY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for M10082040054X0PWAY reliable?
The price and inventory of M10082040054X0PWAY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M10082040054X0PWAY is usually 5 days.
3.What payment methods are accepted for M10082040054X0PWAY?
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M10082040054X0PWAY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M10082040054X0PWAY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for M10082040054X0PWAY?
For technical support, including M10082040054X0PWAY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M10082040054X0PWAY requirements.
6.How does Aetrix verify that M10082040054X0PWAY is sourced from the original manufacturer or authorized distributors?
All M10082040054X0PWAY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M10082040054X0PWAY meets industry standards.
7.What is the process for return or replacement of M10082040054X0PWAY?
All M10082040054X0PWAY units undergo pre-shipment inspection (PSI). If there is an issue with M10082040054X0PWAY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The M10082040054X0PWAY part is unused and in its original packaging.
Return procedure for M10082040054X0PWAY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M10082040054X0PWAY Tags

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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology

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AT21CS01-STUM10-T
Microchip Technology

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AT24C02C-SSHM-T
Microchip Technology

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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics

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AT24CS02-SSHM-T
Microchip Technology

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93LC46BT-I/OT
Microchip Technology

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AT24C04C-SSHM-T
Microchip Technology

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24LC01BT-I/SN
Microchip Technology

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24AA02UIDT-I/OT
Microchip Technology

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AT24C08C-STUM-T
Microchip Technology
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