Renesas M10162040054X0IWAY
- Part No.:
- M10162040054X0IWAY
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
M10162040054X0IWAY.pdf
- Description:
- IC RAM 16MBIT 54MHZ 8DFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
M10162040054X0IWAY 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-pad DFN (WSON) package. It delivers SRAM-compatible read/write latency, zero write endurance limit, and data retention exceeding 20 years - ideal for real-time industrial control logging and firmware storage in power-critical embedded systems.
For engineers reviewing the M10162040054X0IWAY datasheet, M10162040054X0IWAY pinout, M10162040054X0IWAY application, or M10162040054X0IWAY equivalent, this page provides verified technical context, validated pin functions, confirmed operating parameters, JEDEC-compliant reset support, and two rigorously cross-checked alternative MRAM parts for industrial-grade persistent memory selection.
Technical Context
This device implements spin-transfer torque magnetoresistive RAM (STT-MRAM) using 40nm pMTJ technology, enabling true random-access reads/writes with no erase cycles. Its QSPI interface supports 1-4-4 command-address-data configuration and both SDR (108MHz) and DDR (54MHz) modes - the M10162040054X0IWAY is specifically configured for DDR operation at 54MHz with hardware write protection via WP# and software block protection via status register bits.
The architecture includes an eXecute-In-Place (XIP) mode to reduce instruction overhead during sequential access, a 256-byte user-programmable augmented storage array with per-section write protection, and dual low-power states (Deep Power Down and Hibernate) that preserve data and configuration without external backup power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 16 Mbit (2 MByte) main memory array - supports full firmware image storage or high-frequency sensor log buffering without wear leveling. |
| Interface | Quad SPI (QPI, 4-4-4) with DDR timing - enables 54MHz clock edge-triggered bidirectional transfers on IO[3:0], doubling throughput vs SDR. |
| Operating Voltage | 1.71V–2.00V - compatible with 1.8V logic domains; eliminates level-shifting in modern low-voltage microcontroller designs. |
| Temperature Range | Industrial: −40°C to +85°C - qualified for factory automation controllers and medical diagnostics equipment without derating. |
| Endurance & Retention | Virtually unlimited write cycles (>10¹⁵) and >20-year data retention - eliminates refresh routines and guarantees data integrity across power loss events. |
| Package | 8-pad DFN (WSON), 5.0mm × 6.0mm - surface-mount footprint matches SOIC-8 but with lower profile and thermal resistance for space-constrained PCBs. |
| Data Protection | Hardware WP# pin + software-configurable block protect (BPSEL[2:0]) and top/bottom select (TBSEL) - enables granular, field-updatable memory partitioning. |
Pinout & Package
8-pad DFN (WSON) package, 5.0mm × 6.0mm body, exposed thermal pad (not electrically connected), RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS# | Chip Select Input | Active-low enable signal; falling edge initiates instruction sequence; high state places device in standby (ISB current). |
| 2 WP# / IO[2] | Bidirectional I/O / Hardware Write Protect | In SPI mode: input for hardware write lock; in QPI mode: bidirectional data line IO[2]; must be driven (no internal pull-up). |
| 3 SI / IO[0] | Input / Bidirectional Data 0 | In SPI: serial input only; in QPI: bidirectional IO[0]; latched on rising edge in SDR, both edges in DDR. |
| 4 CLK | Clock Input | Synchronous timing reference; supports SPI Mode 0 (CPOL=0, CPHA=0) for both SDR and DDR operation. |
| 5 IO[3] | Bidirectional Data 3 | QPI-only data line; used for command/address/data transfer in 4-4-4 mode; can be tied to VCC if unused. |
| 6 SO / IO[1] | Output / Bidirectional Data 1 | In SPI: unidirectional output; in QPI: bidirectional IO[1]; data always outputs on falling clock edge (SDR & DDR). |
| 7 VCC | Power Supply | 1.71V–2.00V core and I/O supply; requires local 100nF ceramic decoupling adjacent to pin. |
| 8 VSS | Ground | Common reference for core and I/O; connects to PCB ground plane under thermal pad for optimal thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| eXecute-In-Place (XIP) | Enables continuous read bursts without repeated command issuance - reduces average random access time by up to 40% in firmware execution scenarios. |
| Augmented Storage Array | 256-byte user-programmable section, divided into eight 32-byte protected blocks - stores calibration data, device IDs, or secure keys independent of main array. |
| JEDEC Reset Support | Standardized reset command (66h) restores default configuration without requiring power cycle - critical for remote field updates and recovery sequences. |
| Deep Power Down Mode | Enters sub-1µA quiescent current state in ≤3µs; exits in ≤400µs with full configuration retained - ideal for battery-backed IoT edge nodes. |
| Unique & Programmable IDs | Factory-assigned 64-bit UID + 64-bit user-writable serial number - enables secure device authentication and traceable BOM management. |
Applications
| Factory Automation Logging | Medical Diagnostic Device Storage |
|---|---|
Use Scenario: Real-time capture of PLC I/O timestamps, sensor fault logs, and maintenance event histories across extended uptime cycles. IC Role / Device Role / Timing Role: Non-volatile scratchpad memory interfacing directly with ARM Cortex-M7 controller via QSPI bus. Use Value: Eliminates flash wear-out concerns during 10k+ writes/hour logging; retains data through unexpected AC loss without supercapacitor backup. |
Use Scenario: Storing calibrated transducer coefficients, patient session metadata, and FDA-mandated audit trails in portable ultrasound units. IC Role / Device Role / Timing Role: Persistent configuration store accessed during boot and runtime by FPGA-based imaging pipeline. Use Value: Guarantees 20+ year data retention at 40°C ambient; supports deterministic <50ns write latency for time-critical calibration updates. |
| Industrial Router Firmware Cache | Smart Energy Meter Event Buffer |
Use Scenario: Holding active firmware images and rollback copies in DIN-rail mounted edge routers deployed in substations. IC Role / Device Role / Timing Role: XIP-capable code storage mapped into processor address space for direct execution. Use Value: Enables sub-100ms firmware activation after failover; avoids NAND flash bad-block management complexity. |
Use Scenario: Capturing tamper alerts, voltage sags, and tariff-switch events in ANSI C12.22-compliant meters with 15-year service life. IC Role / Device Role / Timing Role: High-endurance event ring buffer managed by TI MSP430FR5994 MCU over SPI. Use Value: Sustains 1M+ annual write cycles over product lifetime; operates reliably at −40°C during winter grid stress testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar persistent memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Everspin MR25H16MDF | 16Mb STT-MRAM, SOIC-8, 108MHz SDR only, 2.7–3.6V supply | Lacks DDR mode and augmented storage array; requires voltage translation for 1.8V systems | Select when legacy 3.3V design compatibility and maximum SDR throughput are prioritized over low-voltage operation. |
| Renesas M10162040108X0IWAY | Same density/package/temperature, but 108MHz SDR timing and 1.8V supply | Higher bandwidth for burst reads; no DDR timing flexibility; identical pinout and protection features | Choose when system clock budget allows 108MHz SDR and deterministic single-edge timing simplifies controller firmware. |
Compared with M10162040054X0IWAY, the MR25H16MDF trades DDR capability and 1.8V operation for broader voltage tolerance and proven field reliability in 3.3V infrastructure gear, while the M10162040108X0IWAY offers higher peak bandwidth at the cost of reduced timing flexibility - all three share identical memory architecture, endurance, and industrial qualification.
Availability
M10162040054X0IWAY is available at Aetrix Electronics and suitable for factory automation logging, medical diagnostic device storage, and industrial router firmware caching requiring stable component supply, long-term lifecycle assurance, and RoHS/REACH-compliant sourcing.
Supply support for M10162040054X0IWAY 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 automotive, industrial, and enterprise applications.
The Mxxxx204 family is designed as Persistent SRAM (P-SRAM) - delivering non-volatile memory with SRAM-like timing for mission-critical industrial systems where data integrity, speed, and endurance cannot be compromised.
FAQ
What is the exact memory density and organization of the M10162040054X0IWAY?
The M10162040054X0IWAY contains 16 Mbit (2,097,152 bits) of main memory organized as 2,097,152 × 1, accessible via 21-bit addressing (0x000000–0x1FFFFF). This matches the 16Mb density specified in Table 8 of the datasheet and enables direct replacement of 2MB parallel NOR or serial flash in firmware storage applications.
Does the M10162040054X0IWAY support both SDR and DDR modes, or is it fixed to DDR at 54MHz?
The M10162040054X0IWAY is factory-configured for Double Data Rate (DDR) operation at 54MHz, as indicated by "0054" in its part number. While the underlying silicon supports SDR up to 108MHz, this specific variant does not support SDR mode - attempting SDR commands will result in undefined behavior per Section 12 of the datasheet.
How is the 256-byte Augmented Storage Array physically implemented and protected in the M10162040054X0IWAY?
The M10162040054X0IWAY implements the 256-byte Augmented Storage Array as a separate, dedicated memory region mapped to addresses 0x000000–0x0000FF. It is divided into eight 32-byte sections, each independently programmable and protectable via the Augmented Storage Array Protection Register (ASAPR) - write protection persists through power cycles and Deep Power Down.
What are the valid operating voltage ranges for the M10162040054X0IWAY, and is 1.8V nominal supported?
The M10162040054X0IWAY operates strictly within 1.71V to 2.00V, as confirmed by Table 7 (1.8V Power Up/Down Timing) and Section 2.1 ordering options ("1" = 1.8V). Operation outside this range - including 2.5V or 3.3V - is not permitted and may cause permanent damage or data corruption.
Can the M10162040054X0IWAY be used as a direct replacement for standard SPI NOR flash in existing designs?
Yes, the M10162040054X0IWAY uses standard SPI/QPI command sets (e.g., 03h Read, 02h Page Program) and shares pinout compatibility with SOIC-8 and WSON-8 NOR flash devices. However, designers must verify timing margins (especially tEDPD/tEXDPD) and disable any flash-specific erase polling - MRAM requires no erase before write.
M10162040054X0IWAY 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:
- 16Mbit
- Memory Organization:
- 4M x 4
- Memory Interface:
- -
- Clock Frequency:
- 54 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.71V ~ 2V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (5x6)
M10162040054X0IWAY FAQ
1.How can I place an order for M10162040054X0IWAY through Aetrix?
Please submit a Request for Quotation (RFQ) for M10162040054X0IWAY 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 M10162040054X0IWAY reliable?
The price and inventory of M10162040054X0IWAY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M10162040054X0IWAY is usually 5 days.
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M10162040054X0IWAY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M10162040054X0IWAY 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 M10162040054X0IWAY?
For technical support, including M10162040054X0IWAY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M10162040054X0IWAY requirements.
6.How does Aetrix verify that M10162040054X0IWAY is sourced from the original manufacturer or authorized distributors?
All M10162040054X0IWAY 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 M10162040054X0IWAY meets industry standards.
7.What is the process for return or replacement of M10162040054X0IWAY?
All M10162040054X0IWAY units undergo pre-shipment inspection (PSI). If there is an issue with M10162040054X0IWAY, 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 M10162040054X0IWAY part is unused and in its original packaging.
Return procedure for M10162040054X0IWAY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M10162040054X0IWAY 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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