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Renesas AT25XV041B-UUV-T
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- Part No.:
- AT25XV041B-UUV-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-XFBGA, WLCSP
- Datasheet:
-
AT25XV041B-UUV-T.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,518
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Product details
Overview
AT25XV041B-UUV-T from Renesas Electronics is a 4-Mbit serial SPI Flash memory IC operating from 1.65 V to 4.4 V, supporting Dual-I/O read at up to 85 MHz, with 7.5 ns clock-to-output delay and 256-byte page erase capability. It delivers ultra-low power consumption (200 nA ultra-deep power-down), OTP security register, and hardware write protection via WP pin - deployed in battery-powered IoT edge nodes for firmware storage and over-the-air updates.
For engineers reviewing the AT25XV041B-UUV-T datasheet, AT25XV041B-UUV-T pinout, AT25XV041B-UUV-T application, or AT25XV041B-UUV-T equivalent, this page provides verified pin functions, industrial-temperature-grade timing specs, Dual-I/O interface behavior, sector protection architecture, and direct alternatives for code+data storage designs requiring low-voltage operation and high endurance.
Technical Context
The AT25XV041B-UUV-T implements a SPI-compatible serial interface supporting Modes 0 and 3, with dual-input/dual-output capability enabling 2-bit-per-clock data transfer during read and program operations. Its memory array is partitioned into uniform 4-kByte, 32-kByte, and 64-kByte erase blocks plus 256-byte pages - optimized for mixed-code-and-data storage without cross-contamination during partial updates.
It integrates hardware-controlled sector locking via the WP pin and software-configurable protection registers, alongside an active status interrupt that signals completion of self-timed erase/program cycles. The device uses no external VPP voltage and achieves 100,000 program/erase cycles with 20-year data retention across –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KBytes) - sufficient for boot code, configuration data, and firmware images in compact embedded systems. |
| Supply Voltage Range | 1.65 V – 4.4 V - compatible with single-cell Li-ion, Li-polymer, and 3.3 V/5 V system rails without level-shifting. |
| Max Clock Frequency | 85 MHz - enables fast sequential reads (e.g., code shadowing) with minimal host CPU wait states. |
| Page Program Time | 1.85 ms typical (256 bytes) - reduces firmware update latency versus standard SPI Flash parts. |
| Erase Granularity | 256-byte page / 4-kByte block / 32-kByte block / 64-kByte block - allows precise wear leveling and OTA patching without full-chip erase. |
| Ultra Deep Power-Down Current | 200 nA typical - extends battery life in always-on sensor nodes and wearable devices. |
| Endurance & Retention | 100,000 program/erase cycles / 20 years data retention - meets industrial lifecycle requirements for field-deployed equipment. |
Pinout & Package
AT25XV041B-UUV-T is packaged in an 8-lead SOIC (150-mil) with standard JEDEC footprint. Pin functions are validated per Renesas DS-AT25XV041B-091 Rev. G, Page 7–8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; initiates command latching on falling edge and terminates operations on rising edge. |
| SCK | Serial Clock | Input clock controlling data sampling (SI latched on rising edge, SO driven on falling edge). |
| SI (I/O0) | Serial Input / Dual-I/O Data Line 0 | Command/address/data input; becomes I/O0 output during Dual-I/O read for concurrent 2-bit data transfer. |
| SO (I/O1) | Serial Output / Dual-I/O Data Line 1 | Data output during standard read; remains I/O1 output in Dual-I/O mode for synchronized 2-bit output. |
| WP | Write Protect | Hardware lock control: low assertion enables sector-level protection independent of software commands. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfers without deselecting CS; maintains internal state during MCU sleep cycles. |
| VCC | Power Supply | Single supply input (1.65–4.4 V); powers all logic and memory array - no auxiliary voltage required. |
| GND | Ground Reference | Common return path for VCC and all I/O signals; must be low-impedance connection to system ground. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Support | Enables 2× throughput vs. standard SPI read by clocking two bits per SCK cycle - critical for real-time code execution from flash. |
| Flexible Erase Architecture | Four erase granularities (256B/4kB/32kB/64kB) allow optimal allocation between firmware partitions and runtime data logs. |
| OTP Security Register | 128-byte one-time programmable area: 64 bytes factory-assigned unique ID + 64 bytes user-programmable for ESN or keys. |
| Ultra-Low Power Modes | 200 nA ultra-deep power-down and 5 µA deep power-down enable multi-year battery operation in maintenance-free sensors. |
| Hardware + Software Protection | WP pin enables immediate sector lockdown; status register bits support fine-grained software-based write/erase locks. |
Applications
| Firmware Storage in Wearables | OTA Update Buffer in Smart Sensors |
|---|---|
Use Scenario: Stores boot loader and application firmware in compact fitness trackers powered by coin-cell batteries. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast read access for shadowing into RAM; supports secure firmware validation via OTP-embedded keys. Use Value: 1.65 V minimum supply enables operation down to end-of-life battery voltage; 200 nA deep power-down extends usable battery life beyond 2 years. |
Use Scenario: Holds staged firmware patches and configuration deltas in battery-operated environmental monitoring nodes. IC Role / Device Role / Timing Role: Dual-I/O read accelerates patch verification; 256-byte page erase permits atomic patch writes without disrupting active sensor logging. Use Value: 7.5 ns tV and 85 MHz clock support sub-100 µs instruction fetch latency; 100K endurance ensures >10 years of daily OTA cycles. |
| Secure Boot Configuration in Industrial Gateways | Parameter Storage in Medical Diagnostic Devices |
Use Scenario: Stores immutable root-of-trust keys and signed boot images in DIN-rail-mounted edge gateways. IC Role / Device Role / Timing Role: OTP security register holds factory-programmed cryptographic keys; hardware WP pin prevents runtime tampering during field deployment. Use Value: 64-byte factory-unique ID enables device-specific key binding; 20-year data retention guarantees boot integrity over full product lifecycle. |
Use Scenario: Retains calibrated sensor offsets, patient history flags, and regulatory compliance metadata in portable ultrasound units. IC Role / Device Role / Timing Role: 4-kByte block erase isolates calibration data from firmware updates; industrial temperature range (–40°C to +85°C) ensures reliability during sterilization cycles. Use Value: 25 µA standby current minimizes idle drain during standby; RoHS-compliant green package meets medical material restrictions. |
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 min supply, no OTP register, 10 µA deep power-down (vs. 5 µA), same SOIC-8 package. | Lacks factory-unique ID and user-programmable OTP; suitable where cryptographic binding is handled externally. | Select when lowest-cost 4 Mbit SPI Flash suffices and OTP security is not required. |
| Micron MT25QL04A | 4 Mbit density, 2.7–3.6 V supply only, supports Quad-I/O (not Dual-I/O), 25 µA deep power-down, 100K endurance. | Requires higher VCC; Quad-I/O offers higher bandwidth but adds routing complexity; no ultra-deep power-down mode. | Choose for systems already using Micron's QSPI ecosystem and needing >85 MHz effective throughput. |
Compared with W25Q40EW and MT25QL04A, the AT25XV041B-UUV-T uniquely combines ultra-wide 1.65–4.4 V operation, 200 nA ultra-deep power-down, and factory-programmed OTP identity - making it optimal for energy-constrained, security-aware, and mixed-voltage designs.
Availability
AT25XV041B-UUV-T is available at Aetrix Electronics and suitable for firmware storage in wearables, OTA update buffering in smart sensors, and secure boot configuration in industrial gateways requiring stable component supply across long production lifecycles.
Supply support for AT25XV041B-UUV-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 applications.
The AT25XV041B belongs to Renesas' low-voltage serial Flash memory product line, designed specifically for energy-efficient, secure, and reliable code+data storage in battery-powered and mixed-supply embedded systems.
FAQ
What is the minimum supply voltage required for AT25XV041B-UUV-T to operate reliably?
The AT25XV041B-UUV-T operates reliably from 1.65 V to 4.4 V. At 1.65 V, all specifications-including 85 MHz maximum clock frequency, 7.5 ns tV, and full erase/program functionality-are guaranteed across the industrial temperature range (–40°C to +85°C). This makes AT25XV041B-UUV-T suitable for single-cell Li-ion and Li-polymer battery systems nearing end-of-discharge.
Does AT25XV041B-UUV-T support Quad-I/O or only Dual-I/O?
The AT25XV041B-UUV-T supports SPI Modes 0 and 3 and Dual-I/O operation (using SI and SO as I/O0 and I/O1), but does not support Quad-I/O. Dual-I/O enables two bits per clock cycle during read and program operations, doubling throughput versus standard SPI without requiring additional pins or PCB routing complexity.
How is the OTP security register structured in AT25XV041B-UUV-T?
The AT25XV041B-UUV-T includes a 128-byte OTP security register: 64 bytes are factory-programmed with a unique device identifier (ESN), and 64 bytes are user-programmable once. Programming is irreversible and requires the Program OTP Security Register command (3Ah). This structure supports secure device authentication and key binding in disposable or regulated applications.
Can AT25XV041B-UUV-T be used in industrial temperature environments?
Yes, AT25XV041B-UUV-T is rated for the full industrial temperature range of –40°C to +85°C. All electrical specifications-including 100,000 program/erase cycles, 20-year data retention, and ultra-low power modes-are validated across this range. Its green (Pb/Halide-free/RoHS-compliant) packaging further supports reliability in harsh industrial deployments.
What erase block sizes does AT25XV041B-UUV-T support?
AT25XV041B-UUV-T supports four erase granularities: 256-byte page erase, 4-kByte block erase, 32-kByte block erase, and 64-kByte block erase - plus full chip erase. This hierarchy enables efficient use of memory space for both small configuration updates and large firmware revisions, minimizing wear and maximizing endurance in mixed-use applications.
AT25XV041B-UUV-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-XFBGA, WLCSP
- 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-WLCSP (1.63x1.58)
AT25XV041B-UUV-T FAQ
1.How can I place an order for AT25XV041B-UUV-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XV041B-UUV-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-UUV-T reliable?
The price and inventory of AT25XV041B-UUV-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-UUV-T is usually 5 days.
3.What payment methods are accepted for AT25XV041B-UUV-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XV041B-UUV-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XV041B-UUV-T?
AT25XV041B-UUV-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XV041B-UUV-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-UUV-T?
For technical support, including AT25XV041B-UUV-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XV041B-UUV-T requirements.
6.How does Aetrix verify that AT25XV041B-UUV-T is sourced from the original manufacturer or authorized distributors?
All AT25XV041B-UUV-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-UUV-T meets industry standards.
7.What is the process for return or replacement of AT25XV041B-UUV-T?
All AT25XV041B-UUV-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XV041B-UUV-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-UUV-T part is unused and in its original packaging.
Return procedure for AT25XV041B-UUV-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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