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Renesas AT25XE041B-SSHN-T
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- Part No.:
- AT25XE041B-SSHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25XE041B-SSHN-T.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,931
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Product details
Overview
AT25XE041B-SSHN-T from Renesas Electronics is a 4-Mbit serial SPI Flash memory IC designed for code shadowing and embedded data storage in resource-constrained systems. It operates from 1.65 V to 3.6 V across –40°C to +85°C, supports Dual-I/O read mode at up to 85 MHz, and features 256-byte page erase, 4/32/64-kByte uniform block erase, and hardware write protection via WP pin.
For engineers reviewing the AT25XE041B-SSHN-T datasheet, AT25XE041B-SSHN-T pinout, AT25XE041B-SSHN-T application, or AT25XE041B-SSHN-T equivalent, this page delivers verified electrical specs, package mapping to 8-lead SOIC (150-mil), functional pin roles, real-world use scenarios, and two validated alternative parts with documented technical and application differences.
Technical Context
The AT25XE041B-SSHN-T implements a standard SPI interface compliant with Modes 0 and 3, enabling interoperability with common microcontroller SPI peripherals. Its Dual-I/O operation doubles read bandwidth by outputting two bits per SCK falling edge using SI (I/O0) and SO (I/O1) simultaneously.
Internally, it uses a flexible erase architecture with four distinct erase granularities-256-byte pages, and uniform 4-kByte, 32-kByte, and 64-kByte blocks-enabling efficient co-location of firmware code and runtime data without cross-contamination during updates. The 128-byte OTP security register includes 64 bytes factory-programmed with a unique identifier for device authentication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KBytes) - sufficient for boot code, firmware images, and configuration data in compact embedded systems. |
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct interfacing with 1.8 V and 3.3 V logic domains without level shifters. |
| Max Clock Frequency | 85 MHz - supports high-speed read throughput up to ~170 MB/s in Dual-I/O mode, reducing boot latency. |
| Erase Granularity | 256-byte page / 4-kByte / 32-kByte / 64-kByte blocks - allows precise firmware patching and data logging without erasing unrelated sectors. |
| Program/Erase Endurance | 100,000 cycles (–40°C to +85°C) - suitable for field-upgradable devices requiring frequent OTA updates. |
| Data Retention | 20 years - ensures long-term reliability for industrial and automotive control applications. |
| Ultra Deep Power-Down Current | 200 nA typical - extends battery life in always-on sensor nodes and low-power IoT endpoints. |
Pinout & Package
AT25XE041B-SSHN-T is packaged in an 8-lead SOIC (150-mil) with gull-wing leads, RoHS-compliant, and rated for full industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition low-to-high to complete commands and enter standby mode after internal operations. |
| SCK | Serial Clock | Input clock controlling data timing; rising edge latches SI input, falling edge clocks SO output. |
| SI (I/O0) | Serial Input / Dual-I/O Data 0 | Primary command/address/data input; becomes bidirectional I/O0 during Dual-I/O reads for parallel bit streaming. |
| SO (I/O1) | Serial Output / Dual-I/O Data 1 | Primary data output; remains active as I/O1 during Dual-I/O reads to deliver second bit per SCK cycle. |
| WP | Write Protect | Hardware lock control; low assertion enables sector protection independent of software commands. |
| HOLD | Communication Pause | Active-low pause signal; suspends SPI transfer without resetting state or interrupting ongoing erase/program cycles. |
| VCC | Power Supply | Single 1.65–3.6 V supply powers all functions - no auxiliary voltage required for programming or erase. |
| GND | Ground Reference | System ground return path; must be low-impedance to ensure stable read margins and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Delivers 2× read bandwidth vs. standard SPI by clocking two bits per SCK falling edge using SI and SO pins. |
| Flexible Erase Architecture | Enables mixed-code-and-data layouts: small 256-byte pages for config variables, large 64-kByte blocks for firmware binaries. |
| 128-byte OTP Security Register | Provides tamper-resistant storage for unique device ID (64 bytes factory-set) and user keys (64 bytes programmable once). |
| Hardware Write Protection | WP pin physically locks protected sectors even if software is compromised - critical for bootloader integrity. |
| Ultra Deep Power-Down | Reduces current to 200 nA typical, enabling multi-year operation on coin-cell batteries in maintenance-free edge sensors. |
Applications
| Industrial PLC Firmware Storage | IoT Edge Sensor Configuration |
|---|---|
|
Use Scenario: Storing firmware images and field-upgradeable logic modules in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile code storage with fast random-access read and selective block erase for delta updates. Use Value: Enables secure, low-latency firmware recovery and version rollback without external memory controllers or complex wear-leveling firmware. |
Use Scenario: Holding calibrated sensor coefficients, network credentials, and device-specific settings in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-power persistent data storage with byte-addressable writes and ultra-low deep-sleep current. Use Value: Extends operational lifetime beyond 5 years on CR2032 cells while supporting over-the-air parameter reconfiguration. |
| Automotive Telematics Boot Memory | Medical Wearable Device Logs |
|
Use Scenario: Hosting boot code and safety-critical initialization routines in vehicle telematics control units operating across –40°C to +85°C. IC Role / Device Role / Timing Role: AEC-Q100 stress-tested serial Flash providing deterministic boot timing and ECC-free reliable reads. Use Value: Meets automotive startup timing budgets (<50 ms) with 85 MHz Dual-I/O reads and eliminates need for parallel NOR Flash footprint. |
Use Scenario: Recording patient biometric history and therapy session metadata in Class II wearable medical devices requiring FDA-compliant data persistence. IC Role / Device Role / Timing Role: Secure, long-retention data logger with OTP-protected serial number and encrypted log headers. Use Value: Supports 20-year data retention compliance and enables traceability via factory-programmed unique ID in the OTP register. |
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 W25Q40EWBYIG | 4 Mbit density, 1.7–2.0 V min supply, 104 MHz max clock, no Dual-I/O support, 1.6 mm × 1.5 mm DFN package only. | Lacks Dual-I/O read acceleration; better suited for cost-sensitive, space-constrained designs where speed is secondary. | Select when board layout prioritizes ultra-small footprint and system clock is ≤52 MHz; verify 1.7 V minimum VCC compatibility. |
| Micron MT25QL04ABVCSF12-0SIT | 4 Mbit density, 1.7–2.0 V min supply, 133 MHz max clock, Quad-I/O capable, 8-pin SOIC available but requires different command set. | Supports faster Quad-I/O reads but mandates QSPI controller and modifies driver stack; higher active current (4.5 mA typical). | Choose for maximum read throughput in new QSPI-based designs; avoid if migrating from legacy SPI-only MCU or constrained by power budget. |
Compared with W25Q40EWBYIG and MT25QL04ABVCSF12-0SIT, the AT25XE041B-SSHN-T uniquely balances 85 MHz Dual-I/O performance, 1.65 V operation, SOIC package availability, and integrated hardware write protection - making it optimal for SPI-limited, voltage-flexible, and security-aware embedded upgrades.
Availability
AT25XE041B-SSHN-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, IoT edge sensor configuration, and automotive telematics boot memory requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AT25XE041B-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 delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25XE041B belongs to Renesas' serial Flash memory product line, engineered specifically for high-reliability, low-voltage, and dual-I/O-enhanced embedded code and data storage in space- and power-constrained systems.
FAQ
What is the minimum supply voltage required for reliable operation of the AT25XE041B-SSHN-T?
The AT25XE041B-SSHN-T operates reliably down to 1.65 V across its full industrial temperature range (–40°C to +85°C). This enables direct integration with 1.8 V I/O domains without level-shifting circuitry. At temperatures up to +125°C, the minimum supply increases to 1.7 V - a detail confirmed in the DC Characteristics tables of the official Renesas datasheet DS-AT25XE041B-062.
Does the AT25XE041B-SSHN-T support Quad-I/O or only Dual-I/O operation?
The AT25XE041B-SSHN-T supports SPI Modes 0 and 3 and Dual-I/O read operation using SI (I/O0) and SO (I/O1) pins, but does not support Quad-I/O. Its command set and pinout lack dedicated I/O2/I/O3 signals or associated quad opcodes. Dual-I/O delivers 2× read bandwidth versus standard SPI, as verified in Section 5.1 and Figure 10 of the AT25XE041B datasheet.
How is hardware write protection implemented on the AT25XE041B-SSHN-T?
Hardware write protection on the AT25XE041B-SSHN-T is controlled by the WP (Write Protect) pin, which is active-low and internally pulled high. When WP is driven low, it locks protected sectors regardless of software commands - preventing accidental or malicious modification of boot code or calibration data. This behavior is detailed in Section 9.7 and Table 8 of the Renesas datasheet.
What package type does the AT25XE041B-SSHN-T use, and is it lead-free?
The AT25XE041B-SSHN-T uses an 8-lead SOIC (150-mil) package with gull-wing leads and is RoHS-compliant, halide-free, and Pb-free per JEDEC standards. The "-SSHN-T" suffix explicitly denotes this SOIC variant, as confirmed in Table 21 (Ordering Information) of the DS-AT25XE041B-062 datasheet.
Can the AT25XE041B-SSHN-T be used in automotive applications requiring AEC-Q100 qualification?
The AT25XE041B-SSHN-T is specified for the full industrial temperature range (–40°C to +85°C) and meets RoHS and green packaging requirements, but it is not AEC-Q100 qualified. For automotive applications requiring AEC-Q100 Grade 2 or Grade 3 certification, Renesas offers the pin-compatible AT25XE041B-AU variant - not the -SSHN-T. Always consult the latest Renesas automotive product matrix before deployment.
AT25XE041B-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
- 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 ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25XE041B-SSHN-T FAQ
1.How can I place an order for AT25XE041B-SSHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE041B-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 AT25XE041B-SSHN-T reliable?
The price and inventory of AT25XE041B-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 AT25XE041B-SSHN-T is usually 5 days.
3.What payment methods are accepted for AT25XE041B-SSHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE041B-SSHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE041B-SSHN-T?
AT25XE041B-SSHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE041B-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 AT25XE041B-SSHN-T?
For technical support, including AT25XE041B-SSHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE041B-SSHN-T requirements.
6.How does Aetrix verify that AT25XE041B-SSHN-T is sourced from the original manufacturer or authorized distributors?
All AT25XE041B-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 AT25XE041B-SSHN-T meets industry standards.
7.What is the process for return or replacement of AT25XE041B-SSHN-T?
All AT25XE041B-SSHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE041B-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 AT25XE041B-SSHN-T part is unused and in its original packaging.
Return procedure for AT25XE041B-SSHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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