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Renesas AT25XV041B-XMHV-T
- Part No.:
- AT25XV041B-XMHV-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25XV041B-XMHV-T.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,950
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Product details
Overview
AT25XV041B-XMHV-T from Renesas Electronics is a 4-Mbit serial SPI Flash memory IC designed for code shadowing, OTA firmware updates, and local data logging in battery-powered embedded systems. It operates across 1.65 V–4.4 V, supports Dual-I/O read at up to 85 MHz, delivers 7.5 ns clock-to-output timing, and integrates hardware write protection via WP pin.
For engineers reviewing the AT25XV041B-XMHV-T datasheet, AT25XV041B-XMHV-T pinout, AT25XV041B-XMHV-T application, or AT25XV041B-XMHV-T equivalent, this page provides verified pin functions, erase/program timing values, OTP security register architecture, industrial-temperature operation, and package-specific layout guidance for SOIC, UDFN, TSSOP, and WLCSP footprints.
Technical Context
The AT25XV041B-XMHV-T implements a SPI-compatible interface supporting Modes 0 and 3 with dual-input/dual-output capability for accelerated data throughput. Its memory array is partitioned into 256-byte pages, 4-kByte blocks, 32-kByte blocks, 64-kByte sectors, and full-chip erase zones-enabling granular code/data storage management without over-erasure.
It features a two-byte status register with active interrupt reporting, software/hardware sector locking (WP pin), and a 128-byte OTP security register-64 bytes factory-programmed with unique ID and 64 bytes user-programmable-for secure device serialization and key storage in disposable or certified IoT endpoints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KBytes) - sufficient for bootloader + application firmware + configuration data in compact MCU systems. |
| Supply Voltage Range | 1.65 V to 4.4 V - compatible with single-cell Li-ion, Li-poly, and 3.3 V/5 V rail systems without level-shifting. |
| Max Clock Frequency | 85 MHz - enables high-speed read bursts (e.g., 10+ MB/s effective throughput in Dual-I/O mode). |
| Page Program Time | 1.85 ms typical (256 Bytes) - reduces firmware update latency during field upgrades. |
| Block Erase Time | 45 ms (4-kByte), 360 ms (32-kByte), 720 ms (64-kByte) - allows selective code region reprogramming without full chip erase. |
| Ultra Deep Power-Down Current | 200 nA typical - extends battery life in always-on sensor nodes or wearables between wake cycles. |
| Data Retention | 20 years - meets long-lifecycle requirements for industrial controllers and medical devices. |
| Endurance | 100,000 program/erase cycles - supports frequent OTA patching and runtime parameter logging. |
Pinout & Package
AT25XV041B-XMHV-T is packaged in an 8-lead SOIC (150-mil) with standard JEDEC footprint. Pin functions are electrically identical across all package variants (SOIC, UDFN, TSSOP, WLCSP), enabling drop-in replacement in layout-constrained designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition low before command input and high after completion to terminate SPI transaction. |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI data, falling edge clocks SO data - defines timing for all SPI operations. |
| SI (I/O0) | Serial Input / Dual-I/O Data Line 0 | Primary command/address/data input; becomes I/O0 output during Dual-I/O read to support 2-bit parallel output per SCK cycle. |
| SO (I/O1) | Serial Output / Dual-I/O Data Line 1 | Standard read data output; remains I/O1 during Dual-I/O read to deliver second bit alongside I/O0 on each SCK falling edge. |
| WP | Write Protect | Hardware lock control: asserted low to freeze sector protection registers and prevent accidental writes/erases. |
| HOLD | Communication Pause | Active-low signal that suspends ongoing SPI transfer without deselecting device or resetting internal state. |
| VCC | Power Supply | Single supply input (1.65–4.4 V); powers core logic, memory array, and I/O buffers - no auxiliary voltage required. |
| GND | Ground Reference | Common return path for VCC and all signal pins; requires low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2 bits per SCK falling edge, doubling effective read bandwidth vs. standard SPI - critical for fast boot code loading. |
| Flexible Erase Architecture | Supports 256-Byte page, 4/32/64-kByte block, and full-chip erase - minimizes wasted space when updating partial firmware images. |
| OTP Security Register | 128-byte one-time programmable area: 64 bytes factory-assigned unique ID + 64 bytes user-configurable for ESN or cryptographic keys. |
| Ultra-Low Power Modes | 200 nA ultra-deep power-down current enables multi-year battery operation in intermittent-sensing applications. |
| Hardware + Software Protection | Combines WP pin-based sector locking with software-controlled protection registers - prevents unauthorized firmware modification at both board and system levels. |
| Active Status Interrupt | Asserts SO pin during erase/program completion, allowing host MCU to enter deep sleep instead of polling status register. |
Applications
| Smart Meter Firmware Storage | Wearable Health Sensor Logging |
|---|---|
Use Scenario: Storing metrology firmware and calibration tables in utility-grade smart meters with 15+ year field life. IC Role / Device Role / Timing Role: Non-volatile code and parameter storage with guaranteed 20-year data retention and 100K endurance for periodic firmware patches. Use Value: Eliminates need for external EEPROM or backup capacitors; supports secure OTA updates using OTP-stored keys. |
Use Scenario: Local buffering of ECG, SpO₂, and motion sensor data in coin-cell-powered wearable patches. IC Role / Device Role / Timing Role: Low-power data logger with 200 nA deep-sleep current and fast 1.85 ms page programming for burst capture. Use Value: Enables >2-year battery life while maintaining real-time data integrity through hardware write protection and sector locking. |
| Industrial PLC Bootloader Memory | Connected Home Gateway Configuration |
Use Scenario: Hosting secure bootloader and fail-safe recovery image in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Trusted boot source with hardware-enforced sector protection preventing corruption during brown-out conditions. Use Value: Ensures deterministic startup and firmware rollback capability using 64-kByte block erase for atomic image swaps. |
Use Scenario: Storing Wi-Fi credentials, Zigbee mesh keys, and user preferences in residential gateways with frequent cloud sync. IC Role / Device Role / Timing Role: Secure configuration vault leveraging OTP register for immutable device identity and encrypted key storage. Use Value: Prevents credential leakage during firmware updates via hardware write-protection and dual-I/O fast read for rapid network rejoin. |
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 SPI Flash; 1.7–2.0 V min supply; no Dual-I/O mode; 100K endurance; 20-year retention. | Lacks Dual-I/O acceleration and ultra-deep power-down (1 µA typical vs. 200 nA); limited to narrow 1.7–2.0 V range. | Select when cost sensitivity outweighs speed/power needs and supply stays within 1.7–2.0 V window. |
| Macronix MX25L4006E | 4 Mbit SPI Flash; supports Dual-I/O; 2.7–3.6 V supply only; 100K endurance; 20-year retention. | Higher minimum voltage (2.7 V) excludes single-cell Li-ion use; same Dual-I/O benefit but no sub-2.0 V operation. | Choose for 3.3 V systems requiring Dual-I/O where ultra-low voltage and nanoamp power-down are not required. |
Compared with W25Q40EW and MX25L4006E, the AT25XV041B-XMHV-T uniquely combines 1.65 V operation, 200 nA deep-sleep current, and Dual-I/O read - making it optimal for energy-constrained, wide-input-voltage, high-throughput embedded storage.
Availability
AT25XV041B-XMHV-T is available at Aetrix Electronics and suitable for smart meter firmware storage, wearable health sensor logging, and industrial PLC bootloader memory requiring stable component supply across automotive, industrial, and medical product lifecycles.
Supply support for AT25XV041B-XMHV-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-XMHV-T belongs to Renesas' serial Flash memory product line, engineered specifically for ultra-low-power, wide-voltage, and secure embedded storage in battery-operated and safety-critical systems.
FAQ
What voltage range does the AT25XV041B-XMHV-T support?
The AT25XV041B-XMHV-T supports a single-supply voltage range of 1.65 V to 4.4 V, enabling direct compatibility with modern lithium-based batteries and legacy 3.3 V/5 V systems without level shifters. This wide range ensures reliable operation across varying battery discharge curves and mixed-voltage board designs - a key advantage over narrower-range alternatives like the MX25L4006E (2.7–3.6 V only).
Does the AT25XV041B-XMHV-T support Dual-I/O read mode?
Yes, the AT25XV041B-XMHV-T supports Dual-I/O read mode using SI (I/O0) and SO (I/O1) pins, delivering two bits per SCK falling edge. This doubles effective read throughput versus standard SPI, reducing boot time and OTA update latency. The feature is fully documented in the datasheet (Section 5.1, Figure 9) and requires specific opcode (0BBh) activation - distinct from Quad-I/O or Octal modes.
How is hardware write protection implemented on the AT25XV041B-XMHV-T?
Hardware write protection on the AT25XV041B-XMHV-T is controlled by the WP (Write Protect) pin, which must be driven low to lock protected sectors. The pin is internally pulled high, so leaving it unconnected defaults to unprotected mode. When asserted, WP overrides software protection commands - ensuring critical firmware regions remain immutable even if MCU firmware is compromised. This behavior is confirmed in Section 9.7 of the datasheet.
What is the purpose and structure of the OTP security register in the AT25XV041B-XMHV-T?
The AT25XV041B-XMHV-T includes a 128-byte OTP security register: 64 bytes factory-programmed with a unique device identifier and 64 bytes user-programmable for ESN, keys, or calibration data. Once written, OTP bytes cannot be erased or rewritten - providing tamper-resistant device identity and secure key storage. Programming requires the 02h command and is detailed in Section 10.1 of the datasheet.
What erase granularity options does the AT25XV041B-XMHV-T offer?
The AT25XV041B-XMHV-T offers four erase granularities: 256-byte page (81h), 4-kByte block (20h), 32-kByte block (52h), and 64-kByte block (D8h), plus full chip erase (60h). This hierarchy enables precise code/data management - for example, updating a single driver module (4-kByte) without erasing the entire bootloader (64-kByte sector). Erase times are characterized: 45 ms (4-kB), 360 ms (32-kB), 720 ms (64-kB).
AT25XV041B-XMHV-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- 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-TSSOP
AT25XV041B-XMHV-T FAQ
1.How can I place an order for AT25XV041B-XMHV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV041B-XMHV-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-XMHV-T reliable?
The price and inventory of AT25XV041B-XMHV-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-XMHV-T is usually 5 days.
3.What payment methods are accepted for AT25XV041B-XMHV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV041B-XMHV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV041B-XMHV-T?
AT25XV041B-XMHV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV041B-XMHV-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-XMHV-T?
For technical support, including AT25XV041B-XMHV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV041B-XMHV-T requirements.
6.How does Aetrix verify that AT25XV041B-XMHV-T is sourced from the original manufacturer or authorized distributors?
All AT25XV041B-XMHV-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-XMHV-T meets industry standards.
7.What is the process for return or replacement of AT25XV041B-XMHV-T?
All AT25XV041B-XMHV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV041B-XMHV-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-XMHV-T part is unused and in its original packaging.
Return procedure for AT25XV041B-XMHV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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