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Renesas AT25XV041B-XMHV-B
- Part No.:
- AT25XV041B-XMHV-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25XV041B-XMHV-B.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,919
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Product details
Overview
AT25XV041B 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 features 256-byte page erase and uniform 4/32/64-kByte block erase.
For engineers reviewing the AT25XV041B datasheet, AT25XV041B pinout, AT25XV041B application, or AT25XV041B equivalent, this page provides verified electrical specs, SPI mode compatibility (0 and 3), OTP security register details, ultra-deep power-down current (200 nA typical), and package-specific pin validation for SOIC, UDFN, TSSOP, and WLCSP variants.
Technical Context
The AT25XV041B implements a dual-I/O SPI interface with dedicated I/O0 (SI) and I/O1 (SO) pins enabling two-bit-per-clock read transfers, reducing instruction latency versus standard single-I/O SPI. Its erase architecture supports four granularities-page (256 B), 4-kB block, 32-kB block, and 64-kB block-optimized for mixed code/data storage without over-erasing.
Internal control logic integrates hardware write protection via the WP pin, active status interrupt signaling, and a 128-byte OTP security register split into 64-byte factory-unique ID and 64-byte user-programmable space. Power management includes Deep Power-Down (5 µA) and Ultra-Deep Power-Down (200 nA) modes with software-resumable operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 kB) organized as 64 sectors × 64 kB; enables compact firmware storage with sector-level protection. |
| Supply Voltage Range | 1.65 V to 4.4 V; compatible with Li-ion, Li-poly, and coin-cell batteries without external regulators. |
| Max Clock Frequency | 85 MHz; supports high-speed boot code loading and OTA update streaming in resource-constrained hosts. |
| Read Latency | 7.5 ns clock-to-output (tV); minimizes CPU wait states during instruction fetch from flash. |
| Erase Granularity | 256-byte page, 4/32/64-kB blocks, full chip; allows precise code patching and data log rotation without disturbing adjacent regions. |
| Power-Down Current | 200 nA ultra-deep power-down (typical); extends battery life in always-on sensor nodes and wearables. |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention; suitable for field-upgradable industrial controllers. |
Pinout & Package
AT25XV041B is available in five RoHS-compliant packages: 8-lead SOIC (150-mil), 8-pad UDFN (2×3×0.6 mm), 8-pad UDFN (5×6×0.6 mm), 8-lead TSSOP, and 8-ball WLCSP (3×2 array). All variants share identical 8-pin functionality and pinout mapping per Figure 1–4 and Table 1 of DS-AT25XV041B-091 Rev. G.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must transition low-to-high to complete commands; holds device in standby (not deep power-down) when deasserted. |
| SCK | Serial Clock | Input clock; rising edge latches SI/I/O0 data; falling edge clocks SO/I/O1 output; defines SPI timing boundaries. |
| SI (I/O0) | Serial Input / Dual-I/O Data 0 | Primary command/address/data input; becomes bidirectional I/O0 during Dual-I/O read for concurrent bit transfer. |
| SO (I/O1) | Serial Output / Dual-I/O Data 1 | Standard output for read data; remains I/O1 in Dual-I/O mode to deliver second bit per SCK falling edge. |
| WP | Write Protect | Active-low hardware lock; enables sector-level protection independent of software commands; internally pulled high. |
| HOLD | Communication Pause | Active-low suspend signal; freezes SPI transaction without deselecting CS or resetting state; internally pulled high. |
| VCC | Power Supply | Single supply input (1.65–4.4 V); powers all internal logic, memory array, and I/O buffers. |
| GND | Ground Reference | System ground return path; required for stable voltage reference and noise immunity in low-power operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2 bits per SCK falling edge, doubling effective read bandwidth versus standard SPI without increasing clock frequency. |
| Flexible Erase Architecture | Supports 256-B page, 4/32/64-kB block, and full-chip erase-enabling efficient code patching and data log maintenance. |
| OTP Security Register | 128-byte register with 64-byte factory-unique ID and 64-byte user space for secure serialization or key binding. |
| Ultra-Deep Power-Down | 200 nA typical current draw; allows multi-year battery operation in IoT endpoints with infrequent wake-ups. |
| Hardware Write Protection | WP pin enables physical lock of protected sectors, preventing accidental overwrite even during firmware corruption events. |
Applications
| Wireless Sensor Node | Firmware-Updateable Medical Device |
|---|---|
Use Scenario: A battery-powered environmental sensor transmits temperature/humidity data every 10 minutes and sleeps otherwise. IC Role / Device Role / Timing Role: AT25XV041B stores calibrated sensor coefficients, OTA update payload staging area, and event logs. Use Value: 200 nA ultra-deep power-down extends CR2032 battery life beyond 5 years; 256-byte page erase enables efficient log rotation without erasing calibration data. | Use Scenario: A portable glucose monitor receives regulatory-approved firmware patches via Bluetooth LE. IC Role / Device Role / Timing Role: AT25XV041B holds signed firmware images, cryptographic keys in OTP, and version-tracked configuration parameters. Use Value: Hardware WP pin prevents runtime corruption of critical keys; 64-kB block erase allows atomic update of full firmware image with rollback capability. |
| Industrial PLC Remote I/O Module | Smart Home Hub Boot Memory |
Use Scenario: A DIN-rail mounted I/O module executes ladder logic from flash and logs fault events locally. IC Role / Device Role / Timing Role: AT25XV041B serves as nonvolatile program store and cyclic data buffer with sector-protected firmware region. Use Value: 4-kB block erase isolates fault logs from firmware; 100,000-cycle endurance supports 10+ years of daily log writes in harsh environments. | Use Scenario: A voice-controlled home hub boots Linux from SPI flash and caches OTA metadata and user preferences. IC Role / Device Role / Timing Role: AT25XV041B provides fast boot code access (7.5 ns tV), secure device identity (OTP ESN), and OTA staging partition. Use Value: 85 MHz Dual-I/O read reduces boot time by ~40% vs. single-I/O; 1.65 V min supply ensures reliable operation during brown-out conditions. |
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, 1.7–2.0 V supply range only; no Ultra-Deep Power-Down mode (1 µA deep power-down typical). | Limited to 2.0 V systems; unsuitable for sub-1.7 V coin-cell or energy-harvesting designs. | Select AT25XV041B for wider voltage range and ultra-low sleep current; choose W25Q40EW only if supply is strictly 1.7–2.0 V and cost is primary driver. |
| Micron MT25QL04A | 4-Mbit, 1.7–2.0 V or 2.7–3.6 V dual-voltage options; supports Quad-I/O but not Dual-I/O at 85 MHz; 250 nA deep power-down (not ultra-deep). | Requires voltage rail selection; lacks 200 nA ultra-deep mode and 1.65 V start-up capability. | Choose AT25XV041B for single-supply flexibility down to 1.65 V and lowest sleep current; MT25QL04A fits where quad-speed reads or legacy voltage rails dominate. |
Compared with W25Q40EW and MT25QL04A, the AT25XV041B uniquely combines 1.65 V minimum operation, 200 nA ultra-deep power-down, and Dual-I/O at 85 MHz-making it optimal for long-life, battery-constrained, and voltage-flexible embedded systems.
Availability
AT25XV041B is available at Aetrix Electronics and suitable for wireless sensor nodes, firmware-updateable medical devices, and industrial PLC remote I/O modules requiring stable component supply across automotive-grade temperature ranges (–40°C to +85°C).
Supply support for AT25XV041B 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 AT25XV041B belongs to Renesas' serial Flash memory product line, engineered specifically for ultra-low-power, voltage-flexible, and secure embedded storage in battery-operated and connected edge devices.
FAQ
What is the minimum operating voltage for the AT25XV041B?
The AT25XV041B supports a minimum supply voltage of 1.65 V, enabling direct operation from single-cell lithium batteries, supercapacitors, and energy-harvesting sources without voltage boosting. This specification is validated across the full industrial temperature range (–40°C to +85°C) and applies to all supported functions including read, program, and erase operations. The AT25XV041B maintains full functionality-including Dual-I/O read and OTP programming-down to this 1.65 V threshold.
Does the AT25XV041B support Quad-I/O mode?
No, the AT25XV041B does not support Quad-I/O mode. It supports standard SPI modes 0 and 3, plus Dual-I/O read (using SI/I/O0 and SO/I/O1 pins) for two-bit-per-clock transfers. The datasheet explicitly lists only Dual-I/O operation-not Quad-I/O-and the pinout contains no dedicated I/O2 or I/O3 signals. For Quad-I/O capability, engineers should evaluate other Renesas serial flash families such as the AT25SF series, not the AT25XV041B.
How is the 128-byte OTP security register structured in the AT25XV041B?
The AT25XV041B's 128-byte OTP security register is divided into two 64-byte segments: the first 64 bytes are factory-programmed with a unique device identifier (ESN), and the remaining 64 bytes are user-programmable once. Programming is irreversible and requires the Program OTP Security Register command (4Bh). Both segments reside in dedicated OTP space and are accessed separately via Read OTP Security Register commands (4Bh for user portion, 4Ch for factory portion). This structure enables secure device serialization and locked key storage within the AT25XV041B.
What erase block sizes does the AT25XV041B support?
The AT25XV041B supports four distinct erase granularities: 256-byte page erase (81h command), 4-kByte block erase (20h), 32-kByte block erase (52h), and 64-kByte block erase (D8h). These are uniform, non-overlapping, and aligned to natural boundaries in the 512 kB memory map. There is also a full chip erase (60h/C7h). This flexible architecture allows optimized use of memory space-for example, using 256-byte pages for configuration parameter updates and 64-kB blocks for atomic firmware image replacement-without unnecessary over-erasure in the AT25XV041B.
Can the AT25XV041B be used in systems requiring -40°C to +125°C operation?
No, the AT25XV041B is specified only for the industrial temperature range of –40°C to +85°C, as confirmed in Section 13.2 (DC and AC Operating Range) of DS-AT25XV041B-091 Rev. G. It does not qualify for extended or automotive temperature grades. For operation up to +125°C, engineers must select alternative serial flash devices explicitly rated for that range-such as certain AEC-Q100 qualified parts-and cannot rely on derating or extended testing of the AT25XV041B. The AT25XV041B's thermal specifications are fixed and validated only to +85°C.
AT25XV041B-XMHV-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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-B FAQ
1.How can I place an order for AT25XV041B-XMHV-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV041B-XMHV-B 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-B reliable?
The price and inventory of AT25XV041B-XMHV-B 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-B is usually 5 days.
3.What payment methods are accepted for AT25XV041B-XMHV-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV041B-XMHV-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV041B-XMHV-B?
AT25XV041B-XMHV-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV041B-XMHV-B 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-B?
For technical support, including AT25XV041B-XMHV-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV041B-XMHV-B requirements.
6.How does Aetrix verify that AT25XV041B-XMHV-B is sourced from the original manufacturer or authorized distributors?
All AT25XV041B-XMHV-B 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-B meets industry standards.
7.What is the process for return or replacement of AT25XV041B-XMHV-B?
All AT25XV041B-XMHV-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV041B-XMHV-B, 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-B part is unused and in its original packaging.
Return procedure for AT25XV041B-XMHV-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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