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Renesas AT25XE081D-MAHN-T
- Part No.:
- AT25XE081D-MAHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25XE081D-MAHN-T.pdf
- Description:
- IC FLASH 8MBIT SPI/QUAD 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,831
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Product details
Overview
AT25XE081D from Renesas Electronics is an 8-Mbit SPI serial flash memory IC designed for embedded program storage, eXecute-in-Place (XiP), and data logging in battery-powered and space-constrained systems. It operates across 1.65 V–3.6 V, supports quad I/O (1-4-4) and XiP modes, delivers up to 133 MHz clock frequency, and features 256-byte page erase capability.
For engineers reviewing the AT25XE081D datasheet, AT25XE081D pinout, AT25XE081D application, or AT25XE081D equivalent, key selection criteria include multi-I/O timing compliance, ultra-low-power deep power-down current (5–7 nA), SRAM-emulating Read-Modify-Write command, and JEDEC-standard hardware reset support.
Technical Context
The AT25XE081D implements a flexible 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 architecture integrates an 8-Mbit Flash array with a 256-byte SRAM buffer and dedicated I/O Interface Unit to manage mode-specific signal routing.
Memory protection includes individual block lock/unlock commands (36h/39h), global lock (7Eh), and user-definable protected regions at memory start/end. Erase/program suspend/resume (75h/B0h, 7Ah/D0h) enables nested operations without host intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte) - sufficient for firmware images, boot code, and configuration data in compact MCU-based systems. |
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct integration into single-cell Li-ion, coin-cell, and multi-rail industrial power domains. |
| Max Clock Frequency | 133 MHz - supports high-throughput XiP and sequential read operations with minimal latency. |
| Erase Granularity | 256-byte page erase - allows efficient overwriting of small data records without disturbing adjacent sectors. |
| Deep Power-Down Current | 5–7 nA typical - extends battery life in always-on IoT edge nodes during extended sleep intervals. |
| Endurance & Retention | 100,000 program/erase cycles / 20 years data retention - validated for long-life industrial logging and field-upgrade applications. |
| Interface Modes | SPI modes 0/3, 1-1-2, 1-1-4, 1-4-4, 0-4-4 - provides scalable bandwidth from legacy controllers to high-performance XiP hosts. |
Pinout & Package
AT25XE081D-MAHN-T uses an 8-pad DFN package (2 mm × 3 mm × 0.6 mm), RoHS-compliant and halogen-free. Pin assignments are identical across SOIC and DFN variants per Renesas datasheet Figure 2 and Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command/data transactions; supports daisy-chaining in multi-device buses. |
| SCK | Serial Clock | Input clock synchronized to host controller; determines max data rate (up to 133 MHz). |
| SI (I/O0) | Serial Input / Quad I/O 0 | Primary data input in standard/dual modes; functions as bidirectional I/O0 in quad/XiP modes. |
| SO (I/O1) | Serial Output / Quad I/O 1 | Primary data output in standard/dual modes; functions as bidirectional I/O1 in quad/XiP modes. |
| WP (I/O2) | Write Protect / Quad I/O 2 | Hardware write-protection when held low; serves as I/O2 in quad/XiP modes. |
| HOLD/RESET (I/O3) | Hold or Hardware Reset / Quad I/O 3 | Pauses ongoing transfers (HOLD) or triggers JEDEC reset (RESET); acts as I/O3 in quad/XiP modes. |
| VCC | Power Supply | 1.65–3.6 V supply; powers internal logic, charge pumps, and I/O buffers. |
| GND | Ground | Reference return path for all digital and analog circuitry; critical for noise immunity in high-speed SPI. |
Key Features
| Feature | Design Value |
|---|---|
| Read-Modify-Write (RMW) Command (0Ah) | Emulates SRAM-style byte writes in a single SPI transaction-eliminates read-erase-program overhead for small data updates. |
| Active Status Interrupt (25h) | Asserts interrupt to host upon RDY/BSY bit clear-enables event-driven polling and reduces CPU wake cycles. |
| Ultra Deep Power Down (UDPD, 79h) | Reduces standby current to 5–7 nA-extends shelf life and operational runtime in energy-harvesting and battery-backed systems. |
| Factory Unique ID + 3×128-byte OTP Registers | Enables secure device authentication, cryptographic key binding, and immutable configuration storage without external security ICs. |
| JEDEC SFDP Support (5Ah) | Allows automatic discovery of timing parameters, erase block sizes, and feature sets-simplifies driver portability across flash vendors. |
Applications
| Industrial PLC Firmware Storage | IoT Edge Node Data Logging |
|---|---|
Use Scenario: Storing and updating ladder logic firmware and calibration tables in programmable logic controllers operating in harsh environments. IC Role / Device Role / Timing Role: Non-volatile program memory with XiP capability and 256-byte page erase for incremental firmware patches. Use Value: Enables field-upgradable control logic without full chip reprogramming, reducing downtime and maintenance cost. | Use Scenario: Capturing sensor readings (temperature, humidity, motion) in battery-powered smart meters and environmental monitors. IC Role / Device Role / Timing Role: Local data sink with ultra-low-power deep power-down (5–7 nA) between sampling intervals. Use Value: Extends battery life beyond 10 years in sealed deployments by minimizing quiescent current during idle periods. |
| Medical Wearable Boot Memory | Automotive Infotainment Configuration |
Use Scenario: Hosting bootloader and safety-critical initialization code in compact, low-power wearable health monitors. IC Role / Device Role / Timing Role: Secure boot source with factory-programmed unique ID and OTP registers for anti-cloning. Use Value: Meets IEC 62304 Class B software requirements via hardware-enforced identity and tamper-resistant configuration storage. | Use Scenario: Storing UI themes, user preferences, and audio equalizer settings in automotive head units with frequent power cycling. IC Role / Device Role / Timing Role: Fast-access configuration store using quad I/O (1-4-4) mode for sub-100 ms UI restore after ignition-on. Use Value: Delivers responsive user experience by eliminating slow SPI initialization delays through continuous-read XiP optimization. |
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 W25Q80DVSSIG | 8-Mbit density, 1.65–3.6 V, 104 MHz max clock, no UDPD mode (min DPD = 1 µA), lacks RMW command and OTP registers. | Supports standard SPI and quad I/O but not XiP or active status interrupt; suitable for cost-sensitive non-XiP designs. | Select when UDPD current <10 nA and SRAM-emulating writes are not required; verify layout compatibility with SOIC-8 footprint. |
| Micron MT25QL80ABB8E12-0SIT | 8-Mbit density, 1.7–2.0 V only, 133 MHz, supports SFDP and quad I/O, includes hardware reset but no factory UID or OTP security registers. | Optimized for narrow-voltage mobile SoCs; lacks ultra-low-power modes and secure storage features needed for industrial edge use. | Prefer for battery-free, fixed-rail applications where voltage range is constrained; avoid if 1.65 V operation or device identity binding is mandatory. |
Compared with W25Q80DVSSIG and MT25QL80ABB8E12-0SIT, AT25XE081D uniquely combines ultra-deep power-down (5–7 nA), Read-Modify-Write command, and factory-programmed UID + OTP registers-making it the only option among the three qualified for secure, battery-constrained, XiP-capable embedded systems.
Availability
AT25XE081D-MAHN-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, IoT edge node data logging, and medical wearable boot memory requiring stable component supply across extended product lifecycles.
Supply support for AT25XE081D-MAHN-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, and IoT markets.
The AT25XE081D belongs to Renesas' high-efficiency serial flash memory product line, engineered specifically for ultra-low-power, secure, and XiP-capable embedded applications where reliability and long-term supply stability are critical.
FAQ
What is the minimum supply voltage required for reliable operation of the AT25XE081D-MAHN-T?
The AT25XE081D-MAHN-T operates reliably down to 1.65 V across its full temperature range (−40 °C to +85 °C). This low-voltage capability enables direct integration with single-cell lithium batteries and energy-harvesting power sources without intermediate regulation, preserving system efficiency and board space.
Does the AT25XE081D-MAHN-T support true eXecute-in-Place (XiP) functionality?
Yes, the AT25XE081D-MAHN-T supports XiP via its 0-4-4 command format, which eliminates opcode transmission overhead and enables continuous burst reads. Combined with 133 MHz clock support and quad I/O (1-4-4) mode, it delivers deterministic low-latency instruction fetches required for real-time embedded execution directly from flash.
How does the Read-Modify-Write (RMW) command (0Ah) improve data logging efficiency in the AT25XE081D-MAHN-T?
The RMW command (0Ah) in the AT25XE081D-MAHN-T performs atomic byte-level updates without requiring separate read-erase-program sequences. This reduces write latency by up to 70% compared to conventional flash writes and extends endurance by minimizing unnecessary erase cycles-critical for high-frequency data logging applications.
What security features are integrated into the AT25XE081D-MAHN-T?
The AT25XE081D-MAHN-T integrates a factory-programmed 128-byte unique identifier and three 128-byte One-Time Programmable (OTP) security registers. These support cryptographic key binding, device authentication, and immutable configuration storage-enabling hardware-rooted security without external secure elements.
Can the AT25XE081D-MAHN-T be used in systems requiring JEDEC-standard hardware reset behavior?
Yes, the AT25XE081D-MAHN-T implements JEDEC-standard hardware reset via the HOLD/RESET pin (pin 5 in DFN). When asserted, it resets internal state, clears status registers, and returns the device to standby mode-ensuring predictable recovery after brownouts or power sequencing faults without requiring SPI command intervention.
AT25XE081D-MAHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M 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-UDFN (2x3)
AT25XE081D-MAHN-T FAQ
1.How can I place an order for AT25XE081D-MAHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE081D-MAHN-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 AT25XE081D-MAHN-T reliable?
The price and inventory of AT25XE081D-MAHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XE081D-MAHN-T is usually 5 days.
3.What payment methods are accepted for AT25XE081D-MAHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE081D-MAHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE081D-MAHN-T?
AT25XE081D-MAHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE081D-MAHN-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 AT25XE081D-MAHN-T?
For technical support, including AT25XE081D-MAHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE081D-MAHN-T requirements.
6.How does Aetrix verify that AT25XE081D-MAHN-T is sourced from the original manufacturer or authorized distributors?
All AT25XE081D-MAHN-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 AT25XE081D-MAHN-T meets industry standards.
7.What is the process for return or replacement of AT25XE081D-MAHN-T?
All AT25XE081D-MAHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE081D-MAHN-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 AT25XE081D-MAHN-T part is unused and in its original packaging.
Return procedure for AT25XE081D-MAHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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