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Renesas AT25XE041D-UUN-T
- Part No.:
- AT25XE041D-UUN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-XFBGA, WLCSP
- Datasheet:
-
AT25XE041D-UUN-T.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:24,036
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Product details
Overview
AT25XE041D-UUN-T from Renesas Electronics is a 4-Mbit SPI serial flash memory IC supporting 1.65 V–3.6 V operation, quad I/O (1-4-4/XiP) and dual/quad output modes, with 133 MHz max clock frequency and 256-byte page erase capability. It serves as non-volatile program/data storage in microcontroller boot systems and enables eXecute-in-Place (XiP) for direct code execution in resource-constrained embedded designs.
For engineers reviewing the AT25XE041D-UUN-T datasheet, AT25XE041D-UUN-T pinout, AT25XE041D-UUN-T application, or AT25XE041D-UUN-T equivalent, key selection factors include its ultra-low-power Deep Power-Down (8.5 µA) and Ultra-Deep Power-Down (5 nA) currents, Read-Modify-Write command for SRAM-like writes, active status interrupt, and JEDEC-compliant SFDP support for automatic configuration.
Technical Context
The AT25XE041D-UUN-T implements a flexible multi-I/O SPI interface supporting standard (1-1-1), dual-output (1-1-2), quad-output (1-1-4), quad-I/O (1-4-4), and XiP (0-4-4) transfer modes. Its internal architecture integrates a 4-Mbit Flash array, 256-byte SRAM buffer, and I/O Interface Unit that dynamically adapts signal routing per mode.
It features five non-volatile status registers with individual protection schemes, hardware reset via dedicated HOLD/RESET pin and JEDEC-standard reset command, and programmable I/O drive strength. Memory protection includes individual block lock, global lock, and user-definable protected regions at memory start or end.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) - supports firmware images and data logging in compact MCU-based systems. |
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct integration with 1.8 V and 3.3 V logic domains without level-shifting. |
| Max Clock Frequency | 133 MHz - delivers up to 532 MB/s effective read bandwidth in quad-I/O (1-4-4) mode. |
| Erase Granularity | 256-byte page erase - allows efficient small-data updates without disturbing adjacent sectors. |
| Power-Down Current | 5 nA Ultra-Deep Power-Down - extends battery life in always-on IoT edge nodes during extended sleep. |
| Endurance & Retention | 100,000 program/erase cycles / 20-year data retention - suitable for field-updatable firmware and long-life industrial deployments. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade operation without derating. |
| Interface Standard | SPI modes 0 and 3, JEDEC JESD216 SFDP v1.6 - enables auto-discovery and plug-and-play configuration in modern SoC boot loaders. |
Pinout & Package
AT25XE041D-UUN-T is supplied in an 8-pad DFN package (2 mm × 3 mm × 0.6 mm), RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI communication; must be asserted before command transmission. |
| SCK | Serial Clock | Input clock synchronizing all SPI transfers; supports up to 133 MHz in quad-I/O mode. |
| SI (I/O0) | Serial Input / I/O Line 0 | Primary input for commands, addresses, and data in standard/dual/quad modes. |
| SO (I/O1) | Serial Output / I/O Line 1 | Primary output for read data; functions as bidirectional I/O in quad-I/O and XiP modes. |
| WP (I/O2) | Write Protect / I/O Line 2 | Hardware write-protection when low; serves as bidirectional I/O in quad-I/O/XiP modes. |
| HOLD/RESET (I/O3) | Hold or Hardware Reset / I/O Line 3 | Pauses ongoing transfers when held low; triggers hardware reset when pulsed low for ≥20 µs. |
| VCC | Power Supply | 1.65–3.6 V supply; decoupling capacitor required within 1 cm of pin. |
| GND | Ground | Reference for all I/O and internal circuitry; must be connected to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Read-Modify-Write (RMW) Command | Emulates single-cycle SRAM write to Flash by internally reading-modifying-writing a 256-byte page - eliminates external buffering and simplifies EEPROM emulation. |
| Active Status Interrupt | Automatically asserts interrupt to host CPU when RDY/BSY bit clears - enables event-driven polling and reduces CPU overhead during erase/program operations. |
| Erase/Program Suspend & Resume | Allows pausing long-duration erase/program operations to service higher-priority reads - essential for real-time systems requiring deterministic latency. |
| Quad I/O and XiP Support | Enables 0-4-4 continuous-read mode eliminating opcode retransmission - achieves sustained high-speed code fetch for ARM Cortex-M and RISC-V MCUs. |
| Three 128-byte OTP Security Registers | Provide immutable storage for keys, calibration data, or device identity - locked permanently after programming to prevent tampering. |
| User-Configurable I/O Drive Strength | Adjusts output current per pin to match PCB trace impedance and reduce EMI - configurable via status register bits without external components. |
Applications
| Industrial Control Firmware Storage | IoT Edge Node Data Logging |
|---|---|
Use Scenario: Storing and updating PLC firmware images and configuration parameters in factory automation gateways. IC Role / Device Role / Timing Role: Non-volatile program memory with XiP capability and 256-byte page erase for over-the-air (OTA) partial updates. Use Value: Enables secure, low-latency firmware execution directly from flash while minimizing update time and wear on memory blocks. | Use Scenario: Capturing sensor readings (temperature, humidity, motion) in battery-powered smart meters and environmental monitors. IC Role / Device Role / Timing Role: Local data buffer with ultra-low-power Deep Power-Down (5 nA) between sampling intervals. Use Value: Extends battery life beyond 10 years by reducing quiescent current during idle periods without sacrificing write flexibility. |
| Medical Wearable Boot Memory | Automotive Infotainment Configuration |
Use Scenario: Hosting bootloader and safety-critical application code in FDA-classified wearable health monitors. IC Role / Device Role / Timing Role: Certified boot source with hardware reset, JEDEC ID verification, and 20-year data retention for regulatory compliance. Use Value: Meets IEC 62304 requirements for persistent code storage with guaranteed integrity across product lifetime. | Use Scenario: Storing UI themes, audio profiles, and vehicle-specific settings in head unit modules. IC Role / Device Role / Timing Role: Configurable non-volatile storage with individual block protection to safeguard OEM-specific partitions. Use Value: Prevents accidental overwrite of calibration or branding data during software updates via secure OTP and block-lock commands. |
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 | Same density (4 Mbit), 1.7–1.95 V / 2.7–3.6 V dual-voltage range; no Ultra-Deep Power-Down (5 nA); supports only 1-1-4 and 1-4-4, not 0-4-4 XiP. | Lacks continuous-read XiP mode and ultra-low-power UDPD - less suitable for battery-critical or real-time code-fetch applications. | Choose for cost-sensitive designs where 1.8 V/3.3 V dual-rail support is needed but XiP and sub-µA sleep are not required. |
| Macronix MX25U4033F | Same density and voltage range; supports 133 MHz, 256-byte page erase, and SFDP; no RMW command or active status interrupt. | Missing Read-Modify-Write and hardware interrupt - increases firmware complexity for EEPROM emulation and status polling. | Choose when standardized SFDP and quad-I/O are primary needs, and host-side software can manage status polling and page management. |
Compared with W25Q40EW and MX25U4033F, the AT25XE041D-UUN-T uniquely combines 0-4-4 XiP, 5 nA UDPD, and hardware-interrupt-enabled status reporting - delivering lower system-level power, faster code execution, and reduced CPU load in deeply embedded applications.
Availability
AT25XE041D-UUN-T is available at Aetrix Electronics and suitable for industrial control firmware storage, IoT edge node data logging, and medical wearable boot memory requiring stable component supply across long-lifecycle programs.
Supply support for AT25XE041D-UUN-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 specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25XE041D belongs to Renesas' high-efficiency serial flash memory product line, engineered for ultra-low-power operation, robust security, and seamless integration into resource-constrained embedded systems with demanding timing and reliability requirements.
FAQ
What is the operating voltage range supported by the AT25XE041D-UUN-T?
The AT25XE041D-UUN-T operates across a wide supply range of 1.65 V to 3.6 V, enabling direct compatibility with both 1.8 V and 3.3 V system rails without external level shifters. This flexibility simplifies power architecture in mixed-voltage designs such as battery-powered sensors and portable medical devices, where the AT25XE041D-UUN-T maintains full functionality including quad-I/O and XiP modes across the entire range.
Does the AT25XE041D-UUN-T support execute-in-place (XiP) operation?
Yes, the AT25XE041D-UUN-T fully supports eXecute-in-Place (XiP) using the 0-4-4 command format, which eliminates repeated opcode transmission and enables continuous high-speed instruction fetch. This feature is validated in the datasheet for sustained performance at up to 133 MHz, making the AT25XE041D-UUN-T suitable for direct code execution in Cortex-M and RISC-V microcontrollers where external RAM is limited or unavailable.
How does the Read-Modify-Write (RMW) command in the AT25XE041D-UUN-T simplify EEPROM emulation?
The AT25XE041D-UUN-T's RMW command (0Ah) performs a complete read-modify-write cycle on a 256-byte page in a single SPI transaction, internally handling the read, bit manipulation, erase, and rewrite steps. This eliminates the need for external SRAM buffering and complex firmware logic, significantly reducing development effort and runtime overhead when implementing EEPROM-like functionality - a core capability of the AT25XE041D-UUN-T not found in most competing serial flash devices.
What power-saving modes are available on the AT25XE041D-UUN-T, and how low is the current draw?
The AT25XE041D-UUN-T offers three low-power states: standby (30 µA typical), Deep Power-Down (8.5 µA typical), and Ultra-Deep Power-Down (5 nA typical). The 5 nA UDPD mode is entered via the 79h command and exited with ABh, providing industry-leading quiescent current for battery-operated applications. This ultra-low current enables multi-year operation in energy-harvesting and coin-cell-powered devices using the AT25XE041D-UUN-T as persistent storage.
Can the AT25XE041D-UUN-T be used with hardware reset, and what are the options?
Yes, the AT25XE041D-UUN-T supports both hardware and software reset. The HOLD/RESET pin functions as a dedicated hardware reset input - a low pulse ≥20 µs triggers immediate device reset. Additionally, the 66h Enable Reset and 99h Reset Device commands provide software-controlled reset capability. Both methods are fully documented and interoperable, giving system designers flexibility to implement fail-safe recovery in safety-critical applications using the AT25XE041D-UUN-T.
AT25XE041D-UUN-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 - NOR
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 4ms, 30ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WLCSP (1.77x1.74)
AT25XE041D-UUN-T FAQ
1.How can I place an order for AT25XE041D-UUN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE041D-UUN-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 AT25XE041D-UUN-T reliable?
The price and inventory of AT25XE041D-UUN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XE041D-UUN-T is usually 5 days.
3.What payment methods are accepted for AT25XE041D-UUN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE041D-UUN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE041D-UUN-T?
AT25XE041D-UUN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE041D-UUN-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 AT25XE041D-UUN-T?
For technical support, including AT25XE041D-UUN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE041D-UUN-T requirements.
6.How does Aetrix verify that AT25XE041D-UUN-T is sourced from the original manufacturer or authorized distributors?
All AT25XE041D-UUN-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 AT25XE041D-UUN-T meets industry standards.
7.What is the process for return or replacement of AT25XE041D-UUN-T?
All AT25XE041D-UUN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE041D-UUN-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 AT25XE041D-UUN-T part is unused and in its original packaging.
Return procedure for AT25XE041D-UUN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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