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Renesas AT25XV041B-MHV-T
- Part No.:
- AT25XV041B-MHV-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AT25XV041B-MHV-T.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,049
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Product details
Overview
AT25XV041B-MHV-T from Renesas Electronics is a 4-Mbit serial SPI Flash memory IC supporting dual-I/O operation, 1.65 V–4.4 V single-supply operation, and 85 MHz maximum clock frequency. It delivers 7.5 ns clock-to-output timing, 256-byte page erase, and hardware write protection via WP pin for embedded code shadowing and over-the-air firmware updates in battery-powered IoT edge nodes.
For engineers reviewing the AT25XV041B-MHV-T datasheet, AT25XV041B-MHV-T pinout, AT25XV041B-MHV-T application, or AT25XV041B-MHV-T equivalent, key selection criteria include dual-I/O read bandwidth, ultra-deep power-down current (200 nA), OTP security register programmability, industrial temperature support, and compatibility with SPI Modes 0/3 in space-constrained designs.
Technical Context
The AT25XV041B-MHV-T implements a flexible erase architecture with four uniform block sizes (4 kB, 32 kB, 64 kB) plus 256-byte page erase, enabling efficient co-location of firmware code and runtime data. Its dual-output read mode clocks two bits per SCK falling edge, doubling effective throughput versus standard SPI reads.
It integrates an active status interrupt to wake host MCUs upon program/erase completion and supports software-controlled reset, deep power-down (5 µA), and ultra-deep power-down (200 nA) modes - all without requiring external voltage programming. The 128-byte OTP security register contains 64 bytes factory-programmed unique ID and 64 bytes user-programmable space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) organized as 65,536 × 8-bit words; sufficient for compact bootloader + parameter storage in resource-limited microcontrollers. |
| Supply Voltage Range | 1.65 V to 4.4 V; enables direct interface with Li-ion, Li-poly, and coin-cell batteries without level-shifting or LDO overhead. |
| Max Clock Frequency | 85 MHz; supports high-speed firmware loading and real-time configuration retrieval in time-critical applications. |
| Read Latency | 7.5 ns clock-to-output (tV); ensures minimal wait states during instruction fetch or data streaming in MCU-based systems. |
| Erase Granularity | 256-byte page, 4-kB/32-kB/64-kB uniform blocks, and full chip erase; allows precise firmware patching without disturbing adjacent code or calibration data. |
| Power-Down Current | 200 nA ultra-deep power-down (typical); extends battery life in always-on sensor nodes and wearable devices. |
| Endurance & Retention | 100,000 program/erase cycles and 20-year data retention; meets long-life requirements for industrial and medical equipment. |
Pinout & Package
AT25XV041B-MHV-T is packaged in an 8-lead SOIC (150-mil) body measuring 5.0 mm × 4.0 mm × 1.5 mm, RoHS-compliant and halide-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition high→low to initiate commands and low→high to terminate operations; deselects device and places SO in high-Z state. |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI input, falling edge clocks SO output; defines timing for all SPI transactions including dual-I/O modes. |
| SI (I/O0) | Serial Input / Dual-I/O Data Line 0 | Primary command/address/data input; becomes I/O0 output during dual-output read, delivering LSB of each 2-bit data pair on falling SCK edges. |
| SO (I/O1) | Serial Output / Dual-I/O Data Line 1 | Standard read data output; functions as I/O1 during dual-output read, delivering MSB of each 2-bit data pair on falling SCK edges. |
| WP | Write Protect | Active-low hardware lock for sector protection; internally pulled-high; externally tied to VCC disables protection unless software commands override. |
| HOLD | Communication Pause | Active-low suspend signal; pauses ongoing SPI transfers without resetting internal state or aborting self-timed erase/program cycles. |
| VCC | Power Supply | Single 1.65–4.4 V supply; powers all logic and memory array; no auxiliary voltage required for programming or erasing. |
| GND | Ground Reference | System ground return path; must be low-impedance connection to ensure stable read/write margins and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2-bit parallel data per SCK falling edge, effectively doubling read bandwidth over standard SPI without increasing pin count or clock rate. |
| Flexible Erase Architecture | Supports page (256 B), 4-kB, 32-kB, 64-kB, and full-chip erase - enabling optimal memory utilization for mixed code+data storage in constrained systems. |
| OTP Security Register | 128-byte one-time programmable register with 64-byte factory-unique ID and 64-byte user space; enables secure device serialization and key binding for firmware authentication. |
| Ultra-Deep Power-Down | 200 nA typical quiescent current; reduces energy consumption by >99% vs. standby mode (25 µA), critical for multi-year battery operation in remote sensors. |
| Hardware Write Protection | WP pin provides physical lock for protected sectors independent of software state, preventing accidental or malicious firmware corruption during field updates. |
Applications
| Smart Meter Firmware Storage | Wearable Health Sensor Logging |
|---|---|
Use Scenario: Storing encrypted firmware images and calibration tables in utility-grade smart electricity meters operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Non-volatile code storage with dual-I/O read acceleration for fast boot and OTA update verification; hardware WP prevents tampering during grid-side firmware pushes. Use Value: 20-year data retention and 100K endurance ensure reliable operation over meter lifetime; 4-kB block erase enables atomic patching without disrupting active measurement routines. | Use Scenario: Local storage of ECG waveform snippets and activity logs in disposable Bluetooth-enabled biosensors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Low-power data buffer with ultra-deep power-down (200 nA) between sampling intervals; OTP register stores device-specific cryptographic keys for secure pairing. Use Value: 1.65 V minimum supply allows operation down to end-of-life battery voltage; 256-byte page erase minimizes write latency during burst acquisition windows. |
| Industrial PLC Configuration Backup | Automotive Telematics Bootloader |
Use Scenario: Retaining user-defined I/O mapping, PID tuning parameters, and safety thresholds in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Parameter EEPROM replacement with SPI interface; HOLD pin enables deterministic pause during real-time control cycles without bus contention. Use Value: Industrial temperature rating (-40°C to +85°C) and 25 µA standby current ensure reliability in uncooled control cabinets; sector protection isolates critical safety settings from routine updates. | Use Scenario: Storing signed bootloader images and secure boot certificates in automotive telematics control units (TCUs) requiring AEC-Q100 compliance and functional safety (ISO 26262). IC Role / Device Role / Timing Role: Secure boot memory with factory-programmed unique ID for hardware root-of-trust; dual-output read accelerates signature verification during cold start. Use Value: 64-byte factory OTP ID enables cryptographic binding to vehicle VIN; 85 MHz clock supports sub-100 ms boot times required for ASIL-B diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q40EW | 4 Mbit density, 1.7–1.95 V supply only; no ultra-deep power-down mode (min 1 µA); lacks OTP security register. | Targeted at cost-sensitive consumer electronics where extended battery life and device identity are not required. | Select when system operates exclusively from regulated 1.8 V rails and security features are handled externally. |
| Macronix MX25L4006E | 4 Mbit density, 2.7–3.6 V supply range; supports standard SPI only (no dual-I/O); 1 µA deep power-down (vs. 200 nA). | Used in legacy industrial controllers with fixed 3.3 V supplies and no bandwidth-critical firmware loads. | Choose if existing PCB layout uses 3.3 V and dual-I/O throughput is unnecessary; verify compatibility with HOLD/RESET timing. |
Compared with W25Q40EW and MX25L4006E, the AT25XV041B-MHV-T uniquely combines ultra-wide 1.65–4.4 V operation, 200 nA ultra-deep power-down, integrated OTP security, and dual-I/O read - making it the only option suitable for battery-powered, secure, and thermally demanding embedded applications requiring both longevity and bandwidth.
Availability
AT25XV041B-MHV-T is available at Aetrix Electronics and suitable for smart meter firmware storage, wearable health sensor logging, industrial PLC configuration backup, and automotive telematics bootloader applications requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for AT25XV041B-MHV-T 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, infrastructure, and IoT markets.
The AT25XV041B belongs to Renesas' serial Flash memory product line, engineered specifically for ultra-low-power, secure, and wide-voltage-range embedded applications - especially where battery longevity, firmware integrity, and industrial environmental resilience are critical.
FAQ
What is the operating voltage range supported by the AT25XV041B-MHV-T?
The AT25XV041B-MHV-T operates across a single-supply range of 1.65 V to 4.4 V. This wide range allows direct interfacing with diverse power sources including lithium coin cells (2.0–3.0 V), Li-ion batteries (3.0–4.2 V), and regulated 3.3 V or 1.8 V rails - eliminating need for external level shifters or voltage translators in mixed-power-system designs. The AT25XV041B-MHV-T maintains full functionality and timing specifications across this entire range.
Does the AT25XV041B-MHV-T support dual-I/O read operations, and what benefit does this provide?
Yes, the AT25XV041B-MHV-T supports dual-output read mode using SI (I/O0) and SO (I/O1) pins to deliver two bits per SCK falling edge. This doubles effective read throughput compared to standard single-I/O SPI, reducing firmware load time and improving real-time data streaming performance. The AT25XV041B-MHV-T achieves up to 85 MHz clock rate in this mode, enabling sustained read bandwidth exceeding 170 Mbps under optimal conditions.
How does the OTP security register in the AT25XV041B-MHV-T function, and what is its capacity?
The AT25XV041B-MHV-T includes a 128-byte one-time programmable (OTP) security register: 64 bytes are factory-programmed with a unique device identifier, and 64 bytes are user-programmable for keys, certificates, or serial numbers. Once written, OTP bytes cannot be erased or rewritten. This enables hardware-rooted device authentication and secure firmware binding. The AT25XV041B-MHV-T supports dedicated Program OTP and Read OTP commands defined in its instruction set.
What power-saving modes does the AT25XV041B-MHV-T offer, and what are their typical current draws?
The AT25XV041B-MHV-T offers three low-power states: Standby (25 µA typical), Deep Power-Down (5 µA typical), and Ultra-Deep Power-Down (200 nA typical). Ultra-deep mode is entered via command and exits on CS assertion, making it ideal for intermittent-sensing applications. These modes allow the AT25XV041B-MHV-T to minimize energy consumption during idle periods while retaining full memory content and configuration state.
Is the AT25XV041B-MHV-T compatible with standard SPI interfaces, and which modes does it support?
Yes, the AT25XV041B-MHV-T is fully SPI-compatible and supports both Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 0). It uses standard SPI signals - CS, SCK, SI, and SO - and requires no special controller extensions. All commands, addressing, and data transfers follow JEDEC-standard SPI conventions, ensuring drop-in compatibility with existing microcontroller SPI peripherals. The AT25XV041B-MHV-T also supports HOLD and RESET functions for robust bus management.
AT25XV041B-MHV-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 85 MHz
- Write Cycle Time - Word, Page:
- 8µs, 2.75ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 4.4V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (5x6)
AT25XV041B-MHV-T FAQ
1.How can I place an order for AT25XV041B-MHV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV041B-MHV-T 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 AT25XV041B-MHV-T reliable?
The price and inventory of AT25XV041B-MHV-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XV041B-MHV-T is usually 5 days.
3.What payment methods are accepted for AT25XV041B-MHV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV041B-MHV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV041B-MHV-T?
AT25XV041B-MHV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV041B-MHV-T 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 AT25XV041B-MHV-T?
For technical support, including AT25XV041B-MHV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV041B-MHV-T requirements.
6.How does Aetrix verify that AT25XV041B-MHV-T is sourced from the original manufacturer or authorized distributors?
All AT25XV041B-MHV-T 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 AT25XV041B-MHV-T meets industry standards.
7.What is the process for return or replacement of AT25XV041B-MHV-T?
All AT25XV041B-MHV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV041B-MHV-T, 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 AT25XV041B-MHV-T part is unused and in its original packaging.
Return procedure for AT25XV041B-MHV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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