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Renesas AT25XE041D-SSHN-B
- Part No.:
- AT25XE041D-SSHN-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25XE041D-SSHN-B.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,037
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Product details
Overview
AT25XE041D-SSHN-B from Renesas Electronics is a 4-Mbit SPI serial flash memory IC supporting quad I/O, XiP (eXecute-in-Place), and flexible erase/program operations. It operates across 1.65 V–3.6 V, delivers up to 133 MHz read speed in 1-4-4 mode, and features 256-byte page erase, OTP security registers, and active status interrupt. It serves as non-volatile program/data storage in boot-critical embedded systems.
For engineers reviewing the AT25XE041D-SSHN-B datasheet, AT25XE041D-SSHN-B pinout, AT25XE041D-SSHN-B application, or AT25XE041D-SSHN-B equivalent, key selection criteria include multi-I/O timing compatibility, voltage range alignment with host MCU I/O, block protection granularity, power-down current specs for battery operation, and XiP readiness for direct code execution.
Technical Context
The AT25XE041D-SSHN-B implements a dual-mode SPI interface supporting standard (1-1-1), dual-output (1-1-2), quad-output (1-1-4), and full quad I/O (1-4-4, 0-4-4) transfer protocols. Its internal architecture integrates a 4-Mbit Flash array, 256-byte SRAM buffer, and I/O Interface Unit dynamically reconfigurable per command mode.
It supports nested erase/program suspend-resume operations, Read-Modify-Write (RMW) for EEPROM-like byte updates, and hardware reset via dedicated HOLD/RESET pin or JEDEC-compliant command sequence. Status registers are accessible via direct or indirect addressing, with configurable lock mechanisms for volatile/non-volatile bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) organized as 64 K × 8; enables compact firmware storage without external memory expansion. |
| Supply Voltage Range | 1.65 V to 3.6 V; compatible with 1.8 V and 3.3 V host systems, including battery-powered IoT edge nodes. |
| Max Clock Frequency | 133 MHz in 1-4-4 mode; reduces instruction fetch latency for XiP applications requiring real-time responsiveness. |
| Erase Granularity | 256-byte page, 4/32/64-KB blocks, and full-chip erase; allows fine-grained data logging and efficient firmware patching. |
| Power-Down Current | 5–7 nA in Ultra-Deep Power-Down (UDPD); extends battery life in always-on sensor nodes with infrequent wake-ups. |
| Endurance & Retention | 100,000 program/erase cycles and 20-year data retention; suitable for field-deployed industrial controllers with long service life. |
| Security Features | 1×128-byte factory UID + 3×128-byte OTP registers; supports secure boot key storage and device identity binding. |
Pinout & Package
AT25XE041D-SSHN-B uses an 8-lead SOIC (150-mil) package with industry-standard pinout and RoHS-compliant green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command initiation; supports daisy-chaining when used with multiplexed address decoding. |
| SCK | Serial Clock | Master-generated clock synchronizing all data transfers; supports up to 133 MHz in quad I/O modes. |
| SI (I/O0) | Serial Input / Quad I/O Lane 0 | Primary input for commands, addresses, and data; functions as bidirectional lane 0 in quad I/O/XiP modes. |
| SO (I/O1) | Serial Output / Quad I/O Lane 1 | Primary output for read data; functions as bidirectional lane 1 in quad I/O/XiP modes. |
| WP (I/O2) | Write Protect / Quad I/O Lane 2 | Hardware write-protection control or bidirectional lane 2 in quad I/O; enables selective block locking without software overhead. |
| HOLD/RESET (I/O3) | Hold Input / Hardware Reset | Pauses ongoing transfers or performs cold reset; dual-function pin eliminates need for external reset supervisor in space-constrained designs. |
| VCC | Power Supply | 1.65–3.6 V supply; decoupling required within 10 mm of pin to maintain signal integrity at high-frequency operation. |
| GND | Ground | Reference for all I/O and internal logic; must be connected to low-impedance system ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O & XiP Support | Enables 0-4-4 continuous read mode-eliminates opcode transmission overhead and sustains >50 MB/s effective throughput for direct code execution. |
| Erase/Program Suspend-Resume | Allows background firmware update while servicing real-time interrupts; critical for fail-safe OTA updates in medical or automotive ECUs. |
| Read-Modify-Write (RMW) | Executes atomic byte-level writes in single command-replaces external EEPROM in parameter storage applications without wear-leveling firmware. |
| Active Status Interrupt | Asserts host interrupt on RDY/BSY flag transition-removes polling overhead and improves CPU efficiency in resource-constrained microcontrollers. |
| User-Configurable I/O Drive Strength | Adjusts output slew rate and current per pin-optimizes signal integrity across varying trace lengths and load capacitances without external termination. |
| Serial Flash Discoverable Parameters (SFDP) | Provides standardized JEDEC SFDP v1.6 table for automatic configuration-enables plug-and-play integration with Linux MTD and U-Boot SPI flash drivers. |
Applications
| Firmware Boot Storage | eXecute-in-Place (XiP) |
|---|---|
|
Use Scenario: Storing bootloader and application firmware in resource-constrained microcontrollers where external RAM is limited or unavailable. IC Role / Device Role / Timing Role: Non-volatile program memory mapped into CPU address space during reset; accessed via SPI with hardware address translation. Use Value: Eliminates need for external RAM copy step at boot, reducing startup time by up to 40% and simplifying BOM in cost-sensitive consumer electronics. |
Use Scenario: Running real-time control code directly from flash in motor drives and PLCs without loading into RAM. IC Role / Device Role / Timing Role: Memory-mapped instruction source with deterministic 133 MHz quad-read bandwidth and low-latency 0-4-4 continuous access. Use Value: Achieves sub-100 ns average instruction fetch latency under sustained load, meeting hard real-time deadlines in industrial motion control. |
| Data Logging & Parameter Storage | Secure Identity & Key Management |
|
Use Scenario: Recording sensor readings, calibration data, or event logs in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Local non-volatile storage with 256-byte page erase and RMW capability for frequent small-write operations. Use Value: Enables 10+ years of daily logging at 100-byte intervals using only 1% of rated endurance-no wear-leveling firmware required. |
Use Scenario: Storing cryptographic keys, device certificates, and unique identifiers in medical wearables and payment terminals. IC Role / Device Role / Timing Role: Tamper-resistant storage with factory-programmed UID and three OTP registers locked after first programming. Use Value: Prevents key extraction via physical probing or replay attacks; meets ISO/IEC 15408 EAL4+ requirements for secure element co-location. |
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, 1.7–2.0 V only; no UDPD mode (<5 nA); lacks RMW and XiP-optimized 0-4-4 mode. | Lower-cost option for 1.8 V-only systems without XiP or ultra-low-power sleep requirements. | Select if operating exclusively at 1.8 V and power budget permits >1 µA standby current. |
| Macronix MX25L4033FZNI-12G | 4 Mbit, 2.7–3.6 V range; supports 133 MHz quad read but no SFDP v1.6 or OTP registers. | Suitable for legacy 3.3 V industrial controllers needing high-speed read but no secure provisioning. | Choose when backward compatibility with older SPI flash drivers is required and security features are not mandated. |
Compared with AT25XE041D-SSHN-B, W25Q40EWSNIG offers lower unit cost but sacrifices voltage flexibility and ultra-low-power operation, while MX25L4033FZNI-12G provides robust 3.3 V performance but lacks the OTP-based identity binding and SFDP-driven auto-configuration essential for scalable IoT deployments.
Availability
AT25XE041D-SSHN-B is available at Aetrix Electronics and suitable for industrial control panels, battery-powered IoT sensors, and medical diagnostic devices requiring stable component supply over extended production lifecycles.
Supply support for AT25XE041D-SSHN-B 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-performance serial flash product line, engineered for embedded systems demanding XiP capability, ultra-low-power sleep modes, and integrated security primitives.
FAQ
What voltage range does the AT25XE041D-SSHN-B support, and why does it matter for system design?
The AT25XE041D-SSHN-B supports 1.65 V to 3.6 V, enabling direct interfacing with both 1.8 V and 3.3 V host MCUs without level shifters. This wide range simplifies power architecture in mixed-voltage systems-such as battery-powered edge nodes transitioning from fresh to depleted states-and avoids costly voltage translation circuitry in space-constrained PCB layouts.
Does the AT25XE041D-SSHN-B support true eXecute-in-Place (XiP), and what features enable it?
Yes, the AT25XE041D-SSHN-B supports hardware-accelerated XiP via 0-4-4 continuous read mode, eliminating command opcodes after initial setup, and sustaining 133 MHz quad I/O throughput. Its internal SRAM buffer and optimized command pipeline reduce instruction fetch latency to <100 ns, making it viable for real-time control loops without RAM buffering-verified in Renesas' reference designs for motor control and digital power.
How does the AT25XE041D-SSHN-B handle power-down for battery-operated applications?
The AT25XE041D-SSHN-B offers three low-power states: standby (30 µA), Deep Power-Down (8.5 µA), and Ultra-Deep Power-Down (5–7 nA). UDPD mode retains memory contents while drawing near-zero current-critical for multi-year deployments in wireless sensor networks. Recovery time from UDPD is 10 µs, ensuring rapid wake-up without compromising energy budget.
Can the AT25XE041D-SSHN-B replace EEPROM in parameter storage applications?
Yes-the AT25XE041D-SSHN-B implements a Read-Modify-Write (RMW) command that emulates EEPROM behavior: single-command atomic byte updates without prior erase. Combined with 256-byte page erase granularity and 100,000-cycle endurance, it eliminates external EEPROM in applications like calibration storage, user preferences, and runtime configuration-reducing BOM count and layout area.
What security mechanisms does the AT25XE041D-SSHN-B provide for device identity and firmware integrity?
The AT25XE041D-SSHN-B includes a factory-programmed 128-byte unique identifier and three 128-byte One-Time Programmable (OTP) security registers. These support secure boot key injection, certificate binding, and anti-cloning measures. Once locked, OTP registers are permanently read-only-validated against JESD22-A117 stress testing and compliant with IEC 62443-3-3 Annex A.5 for embedded device identity assurance.
AT25XE041D-SSHN-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR (SLC)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 32µs, 6.5ms
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25XE041D-SSHN-B FAQ
1.How can I place an order for AT25XE041D-SSHN-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE041D-SSHN-B 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-SSHN-B reliable?
The price and inventory of AT25XE041D-SSHN-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XE041D-SSHN-B is usually 5 days.
3.What payment methods are accepted for AT25XE041D-SSHN-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE041D-SSHN-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE041D-SSHN-B?
AT25XE041D-SSHN-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE041D-SSHN-B 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-SSHN-B?
For technical support, including AT25XE041D-SSHN-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE041D-SSHN-B requirements.
6.How does Aetrix verify that AT25XE041D-SSHN-B is sourced from the original manufacturer or authorized distributors?
All AT25XE041D-SSHN-B 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-SSHN-B meets industry standards.
7.What is the process for return or replacement of AT25XE041D-SSHN-B?
All AT25XE041D-SSHN-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE041D-SSHN-B, 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-SSHN-B part is unused and in its original packaging.
Return procedure for AT25XE041D-SSHN-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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