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Renesas AT25EU0041A-SSHN-T
- Part No.:
- AT25EU0041A-SSHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25EU0041A-SSHN-T.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:11,686
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Product details
Overview
AT25EU0041A-SSHN-T from Renesas Electronics is a 4-Mbit ultra-low-energy serial flash memory IC designed for SPI-based embedded storage in battery-constrained edge IoT and wearable systems. It operates across 1.65 V–3.6 V, supports 108 MHz max clock frequency, delivers 2 ms typical page program time, and achieves 100 nA deep power-down current - enabling direct execution (XiP) and OTA firmware updates with minimal energy overhead.
For engineers reviewing the AT25EU0041A-SSHN-T datasheet, AT25EU0041A-SSHN-T pinout, AT25EU0041A-SSHN-T application, or AT25EU0041A-SSHN-T equivalent, key selection criteria include quad/dual SPI compatibility, 256-byte page erase granularity, software/hardware write protection with 3×512-byte OTP security registers, and SOIC-8 (150-mil) package suitability for space-limited PCB layouts.
Technical Context
The AT25EU0041A-SSHN-T implements a flexible SPI interface supporting modes 0 and 3, with configurable dual- and quad-I/O operation enabled via the Quad Enable (QE) bit in Status Register 2. Its architecture allows simultaneous read/write operations using suspend/resume commands, and supports wrap-around burst reads for efficient sequential access.
It features three independent 512-byte security registers with one-time-programmable (OTP) lock capability, hardware write protection via WP pin, and software-controlled reset. Memory organization includes 4-kB, 32-kB, and 64-kB erasable blocks - all with constant 8 ms typical erase time regardless of block size - optimized for low-energy firmware partitioning and field updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) organized as 2048 pages × 256 bytes; enables compact firmware storage without external RAM buffering. |
| Max Operating Frequency | 108 MHz SPI clock; supports high-throughput data streaming for real-time sensor logging or boot code fetch. |
| Page Program Time | 2 ms typical; reduces write latency during frequent small-data updates like configuration or telemetry logs. |
| Erase Granularity | 256-byte page erase; avoids over-erasing when modifying single parameters or calibration values. |
| Deep Power-Down Current | 100 nA typical; extends battery life in always-on edge nodes by minimizing quiescent leakage during idle periods. |
| Operating Voltage Range | 1.65 V to 3.6 V; compatible with single-cell Li-ion, coin-cell, and regulated 3.3 V/1.8 V system rails. |
| Data Retention | 20 years at +85 °C; ensures long-term reliability for industrial and medical deployments without refresh cycles. |
| Cycling Endurance | 10,000 program/erase cycles per sector; supports robust field-upgrade capability in firmware-over-the-air (FOTA) applications. |
Pinout & Package
AT25EU0041A-SSHN-T is packaged in an industry-standard 8-pin SOIC (150-mil) body measuring 5.0 mm × 4.0 mm × 1.75 mm, RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; falling edge initiates command sequence; must be stable before SCK edges to avoid spurious operation. |
| SCK | Serial Clock | Master-generated clock; rising edge latches input (SI/IO0), falling edge outputs data (SO/IO1); timing-critical for 108 MHz operation. |
| SI (IO0) | Serial Input / Quad I/O 0 | Primary command/address/data input in standard SPI; becomes bidirectional IO0 in dual/quad mode when QE=1. |
| SO (IO1) | Serial Output / Quad I/O 1 | Standard output for read data; becomes bidirectional IO1 in dual/quad mode; high-impedance when CS is high. |
| WP (IO2) | Write Protect / Quad I/O 2 | Hardware write-protection input when QE=0; functions as IO2 in quad mode; internally pulled high; float-safe. |
| HOLD (IO3) | Hold / Quad I/O 3 | Pauses ongoing SPI transfer without resetting state machine when QE=0; serves as IO3 in quad mode; internally pulled high. |
| VCC | Power Supply | 1.65–3.6 V supply; requires local 100 nF–1 µF decoupling capacitor near pin for stable high-speed operation. |
| GND | Ground Reference | System ground return path; must be low-impedance and co-located with VCC decoupling for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Quad/Dual SPI Flexibility | Configurable I/O width (1-/2-/4-line) via QE bit; enables bandwidth scaling from 108 Mbps (single) to 432 Mbps (quad) without hardware change. |
| Ultra-Low Deep Power-Down | 100 nA typical ICC in DPD mode; reduces annual energy consumption by >99% vs active read mode in intermittently active sensors. |
| Program/Erase Suspend & Resume | Allows background read access during long erase cycles; critical for real-time systems requiring concurrent firmware update and sensor monitoring. |
| Flexible Block Architecture | 4/32/64 kB erasable blocks with identical 8 ms typical erase time; simplifies OTA update partitioning and minimizes wasted erase cycles. |
| Security Register Protection | Three 512-byte OTP-lockable registers; isolates cryptographic keys or calibration data from accidental overwrite or malicious access. |
| Software/Hardware Write Protection | Combines WP pin assertion with SRP bits and top/bottom block selection; provides layered defense against unintended writes during brown-out or ESD events. |
Applications
| Wearable Health Monitor | Smart Sensor Node |
|---|---|
|
Use Scenario: Stores firmware, calibration tables, and encrypted biometric logs on a wrist-worn ECG device powered by a CR2032 coin cell. IC Role / Device Role / Timing Role: Non-volatile program memory and secure data logger; executes XiP boot code and handles OTA patch validation. Use Value: 100 nA deep power-down current extends battery life beyond 12 months; 256-byte page erase preserves log integrity during frequent small writes. |
Use Scenario: Captures and buffers environmental sensor readings (temperature, humidity, VOC) in a battery-powered LoRaWAN node. IC Role / Device Role / Timing Role: Local data buffer and firmware storage; supports burst-mode logging during radio sleep cycles. Use Value: 108 MHz quad-SPI read speed enables rapid data offload to MCU before transmission; 10k endurance sustains 10-year field deployment. |
| Industrial Edge Gateway | Medical Diagnostic Handheld |
|
Use Scenario: Hosts dual-firmware images and secure boot keys in a DIN-rail-mounted gateway performing protocol translation between Modbus and MQTT. IC Role / Device Role / Timing Role: Trusted firmware repository with hardware-enforced write protection; supports A/B firmware rollback. Use Value: 3×512-byte OTP security registers isolate root-of-trust keys; software/hardware WP prevents corruption during power transients. |
Use Scenario: Stores FDA-compliant diagnostic algorithms, patient history templates, and audit logs in a portable ultrasound probe. IC Role / Device Role / Timing Role: Certified non-volatile memory for Class II medical device firmware and regulatory data retention. Use Value: 20-year data retention at +85 °C meets IEC 62304 requirements; 4-kB block erase enables safe incremental software updates. |
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 W25Q40EWSNIG | 4 Mbit, 133 MHz max, 1.7–2.0 V or 2.7–3.6 V dual-voltage support; no deep power-down below 1 µA. | Lacks ultra-low 100 nA DPD mode; better suited for mains-powered or higher-VCC systems where energy budget is less constrained. | Select W25Q40EWSNIG only if higher clock speed is required and system voltage is fixed at 3.3 V or 1.8 V - not for coin-cell or multi-voltage battery designs. |
| Macronix MX25U4033FZUI | 4 Mbit, 104 MHz max, 1.65–3.6 V; supports DPD at 1 µA (10× higher than AT25EU0041A-SSHN-T). | Higher DPD current limits usable runtime in sub-µA sleep architectures; lacks OTP security register locking. | Choose MX25U4033FZUI when cost sensitivity outweighs ultra-low-power and security requirements - not for secure, long-life edge devices. |
Compared with W25Q40EWSNIG and MX25U4033FZUI, the AT25EU0041A-SSHN-T uniquely delivers 100 nA deep power-down, OTP-locked security registers, and uniform 8 ms erase time across all block sizes - making it the only option qualified for multi-year battery operation with certified firmware integrity in medical and wearable endpoints.
Availability
AT25EU0041A-SSHN-T is available at Aetrix Electronics and suitable for battery-powered wearables, industrial sensor nodes, and medical handhelds requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for AT25EU0041A-SSHN-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 AT25EU0041A-SSHN-T belongs to Renesas' ultra-low-energy serial flash family, engineered specifically for energy-constrained edge devices where firmware storage efficiency, security, and multi-year battery life are primary design constraints.
FAQ
What is the maximum SPI clock frequency supported by the AT25EU0041A-SSHN-T?
The AT25EU0041A-SSHN-T supports a maximum operating frequency of 108 MHz in standard single-I/O SPI mode. When configured for quad-I/O operation with the QE bit set, this translates to an effective data rate of up to 432 Mbps. This specification is validated across the full 1.65 V–3.6 V supply range and –40 °C to +85 °C temperature range, as confirmed in the DS-AT25EU0041A-212 Rev. E datasheet Section 7.6.
Does the AT25EU0041A-SSHN-T support execute-in-place (XiP) functionality?
Yes, the AT25EU0041A-SSHN-T supports eXecute-in-Place (XiP) operation, allowing microcontrollers to directly fetch and execute code from flash memory without loading into RAM. This capability is explicitly stated in the Product Overview (Section 1, Page 5) of the datasheet and is enabled by its fast read performance, low-latency command set, and stable timing across voltage and temperature.
How does the AT25EU0041A-SSHN-T implement hardware write protection?
The AT25EU0041A-SSHN-T implements hardware write protection via the WP (IO2) pin, which - when asserted low while SRP0=1 and SRP1=0 in Status Register 2 - locks status registers from modification. This function operates independently of software commands and remains active during power transitions, providing fail-safe protection against unintended writes during brown-out or reset conditions.
What package type is used for the AT25EU0041A-SSHN-T?
The AT25EU0041A-SSHN-T uses an 8-pin SOIC package with 150-mil body width (5.0 mm × 4.0 mm × 1.75 mm), as specified in Ordering Information Section 9.1 (Page 58) of the datasheet. The "SSHN-T" suffix explicitly denotes this SOIC-8 variant, distinguishing it from the DFN-8 variant (MAHN-T) and other temperature or screening options.
Can the AT25EU0041A-SSHN-T perform erase operations while allowing concurrent read access?
Yes, the AT25EU0041A-SSHN-T supports program/erase suspend and resume functionality. When an erase operation is suspended using the 75h command, the device permits read access to uninvolved memory regions (as defined in Table 11), enabling real-time data retrieval or status monitoring without interrupting the background erase cycle - a key feature for deterministic embedded systems.
AT25EU0041A-SSHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 85 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25EU0041A-SSHN-T FAQ
1.How can I place an order for AT25EU0041A-SSHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25EU0041A-SSHN-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 AT25EU0041A-SSHN-T reliable?
The price and inventory of AT25EU0041A-SSHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25EU0041A-SSHN-T is usually 5 days.
3.What payment methods are accepted for AT25EU0041A-SSHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25EU0041A-SSHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25EU0041A-SSHN-T?
AT25EU0041A-SSHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25EU0041A-SSHN-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 AT25EU0041A-SSHN-T?
For technical support, including AT25EU0041A-SSHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25EU0041A-SSHN-T requirements.
6.How does Aetrix verify that AT25EU0041A-SSHN-T is sourced from the original manufacturer or authorized distributors?
All AT25EU0041A-SSHN-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 AT25EU0041A-SSHN-T meets industry standards.
7.What is the process for return or replacement of AT25EU0041A-SSHN-T?
All AT25EU0041A-SSHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25EU0041A-SSHN-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 AT25EU0041A-SSHN-T part is unused and in its original packaging.
Return procedure for AT25EU0041A-SSHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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