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Renesas AT25FF041A-SHN-B
- Part No.:
- AT25FF041A-SHN-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25FF041A-SHN-B.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,144
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Product details
Overview
AT25FF041A-SHN-B from Renesas Electronics is a 4-Mbit serial flash memory IC supporting SPI, dual-output (1-1-2), quad-output (1-1-4), and quad I/O XiP (1-4-4, 0-4-4) modes with 133 MHz max clock frequency, 1.65 V–3.6 V supply range, and uniform 4/32/64-kB block erase. It delivers ultra-low power operation (7 nA UDPD current) and is used in firmware storage for microcontroller boot code in space-constrained industrial controllers.
For engineers reviewing the AT25FF041A-SHN-B datasheet, AT25FF041A-SHN-B pinout, AT25FF041A-SHN-B application, or AT25FF041A-SHN-B equivalent, key selection criteria include multi-I/O timing compatibility, JEDEC SFDP support for auto-configuration, OTP security register availability, and -40°C to +105°C extended temperature grade suitability for automotive body control modules.
Technical Context
The AT25FF041A-SHN-B implements a flexible SPI-compatible interface with hardware reset (JEDEC standard), volatile/non-volatile status registers, and configurable I/O drive strength. Its memory architecture supports nested program/erase suspend-resume operations and burst wrap addressing for efficient XiP execution.
It features three 128-byte One-Time Programmable (OTP) security registers, a factory-programmed 128-byte unique ID, and multiple protection schemes including individual block lock, global lock, and user-definable protected regions at memory start or end - all accessible via dedicated command set (e.g., 36h/39h/7Eh/98h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) organized as uniform blocks for deterministic firmware update partitioning |
| Interface Modes | SPI modes 0/3; dual output (1-1-2); quad output (1-1-4); quad I/O XiP (1-4-4, 0-4-4) |
| Max Clock Frequency | 133 MHz - enables high-speed boot code fetch in XiP mode without external cache |
| Supply Voltage | 1.65 V – 3.6 V - compatible with both 1.8 V and 3.3 V host MCU I/O domains |
| Power Consumption | 7 nA Ultra-Deep Power-Down current - extends battery life in always-on sensor nodes |
| Endurance & Retention | 100k cycles / 20 years @ -40°C to +85°C; 10k cycles / 10 years @ -40°C to +105°C |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive and industrial motor drive applications |
Pinout & Package
AT25FF041A-SHN-B uses an 8-lead, 208-mil Wide SOIC package (package code SHN per Renesas ordering table). Pin functions are defined per JEDEC-standard SPI interface with HOLD/RESET dual-function terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command/address/data transfer; supports daisy-chaining in multi-device systems |
| SO | Serial Output | Data output during read/XiP; tri-stated when CS# high or during write/erase operations |
| WP# | Write Protect Input | Hardware-enabled memory protection; low = enables status register write and block lock/unlock commands |
| HOLD#/RESET# | Hold or Reset Input | Pulled low to pause ongoing operation (HOLD) or initiate hardware reset (RESET) per JEDEC standard |
| SI | Serial Input | Command, address, and data input path; supports single/dual/quad I/O modes depending on instruction |
| SCK | Serial Clock Input | Edge-triggered clock up to 133 MHz; phase/polarity configurable for SPI modes 0 and 3 |
| VCC | Power Supply | 1.65–3.6 V core and I/O supply; decoupling required within 10 mm of pin per layout guidelines |
| VSS | Ground | Digital ground reference; must be connected to system GND plane with low-inductance path |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O XiP Support | Enables direct code execution from flash via 1-4-4 or 0-4-4 protocols, reducing external RAM footprint in resource-limited MCUs |
| Program/Erase Suspend-Resume | Allows background erase to pause for high-priority page program, improving real-time firmware update responsiveness |
| Three 128-byte OTP Registers | Stores immutable keys, calibration data, or device-specific credentials; locked permanently after programming |
| Ultra-Deep Power-Down Mode | 7 nA quiescent current enables >10-year battery life in wireless sensor edge nodes with infrequent wake-up intervals |
| SFDP Compliance | JEDEC JESD216-compliant parameter table allows automatic host configuration without hard-coded timing assumptions |
Applications
| Industrial PLC Firmware Storage | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing bootloader and application firmware in programmable logic controllers requiring field updates over RS-485 or CAN. IC Role / Device Role / Timing Role: Non-volatile code storage with XiP capability and 100k endurance for repeated OTA updates. Use Value: Uniform 4-kB block erase enables atomic firmware patching without full chip erase, minimizing downtime during maintenance. |
Use Scenario: Holding configuration data, calibration tables, and diagnostic logs in door module ECUs operating at 105°C ambient. IC Role / Device Role / Timing Role: High-temp-rated serial flash providing secure, long-retention storage for safety-critical parameters. Use Value: OTP security registers protect vehicle-specific keys from tampering; 10k cycles/10-year retention validated at +105°C. |
| Medical Infusion Pump Boot Memory | Smart Energy Meter Firmware |
|
Use Scenario: Hosting certified bootloader and application image in Class II medical devices requiring IEC 62304 compliance. IC Role / Device Role / Timing Role: Safety-assured firmware storage with hardware reset, deep power-down, and unique ID for traceability. Use Value: Factory-programmed 128-byte UID enables per-unit firmware version tracking and audit trail generation during regulatory review. |
Use Scenario: Storing metrology firmware, tariff tables, and communication stack in ANSI C12.22-compliant smart meters deployed outdoors. IC Role / Device Role / Timing Role: Low-power, high-reliability flash supporting AES encryption keys and secure boot verification. Use Value: 7 nA UDPD current extends battery backup life beyond 10 years; SFDP auto-configuration simplifies firmware porting across meter platforms. |
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 | 4 Mbit density, 1.7–2.0 V min supply, no OTP registers, lacks XiP 0-4-4 mode, 104 MHz max clock | Targeted at cost-sensitive consumer IoT; not qualified for automotive AEC-Q100 or industrial extended temp | Select if 1.7 V minimum supply suffices and OTP/XiP flexibility is unnecessary |
| Infineon S25FL004K | 4 Mbit, 2.7–3.6 V only, supports 1-1-4 and 1-4-4 but no 0-4-4 XiP, includes 64-byte OTP, 105°C rated | Designed for industrial automation with robust ESD immunity; lacks UDPD mode (min 2 µA DPD only) | Select when higher voltage margin is acceptable and ultra-low-power sleep is secondary to ESD robustness |
Compared with Winbond W25Q40EW and Infineon S25FL004K, the AT25FF041A-SHN-B uniquely combines 1.65 V operation, 0-4-4 XiP, 7 nA UDPD, and three 128-byte OTP registers - making it optimal for compact, battery-backed, security-aware automotive and industrial designs requiring wide voltage and temperature margins.
Availability
AT25FF041A-SHN-B is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature and long product lifecycles.
Supply support for AT25FF041A-SHN-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25FF041A belongs to Renesas' high-performance serial flash family designed for secure, low-power, multi-I/O firmware storage in demanding embedded systems where voltage flexibility, XiP efficiency, and long-term reliability are critical.
FAQ
What is the operating temperature range for the AT25FF041A-SHN-B?
The AT25FF041A-SHN-B is rated for operation from -40°C to +105°C, making it suitable for under-hood automotive applications and industrial environments with elevated ambient temperatures. This extended range is confirmed in the datasheet's DC and AC characteristics sections for both -40°C to +85°C and -40°C to +105°C conditions, with corresponding endurance and retention specifications provided for each grade.
Does the AT25FF041A-SHN-B support execute-in-place (XiP) operation?
Yes, the AT25FF041A-SHN-B supports quad I/O XiP operation in both 1-4-4 and 0-4-4 modes, enabling direct code execution from flash without loading into RAM. The datasheet specifies XiP Read commands (EBh, E7h) and confirms timing diagrams for initial and subsequent reads in XiP mode, with full support for burst wrap addressing via the Set Burst Wrap (77h) command.
How many One-Time Programmable (OTP) registers does the AT25FF041A-SHN-B include?
The AT25FF041A-SHN-B includes three 128-byte One-Time Programmable (OTP) security registers, documented in Section 5.11 and Tables 28–31 of the datasheet. These registers can store cryptographic keys, calibration data, or device identifiers and are permanently locked after programming using the OTP Security Register Lock command sequence.
What is the minimum supply voltage required for the AT25FF041A-SHN-B?
The AT25FF041A-SHN-B operates down to 1.65 V, as specified in the "Voltage Range" feature list and verified in Section 8.2 (DC and AC Operating Range) of the datasheet. This allows interoperability with 1.8 V I/O domains and extends battery runtime in low-voltage portable systems compared to flash devices requiring ≥2.3 V minimum.
Is the AT25FF041A-SHN-B compliant with JEDEC Serial Flash Discoverable Parameters (SFDP)?
Yes, the AT25FF041A-SHN-B fully supports JEDEC JESD216-compliant SFDP, as stated in the Features section and detailed in Section 7.37 (Serial Flash Discoverable Parameters command 5Ah). This enables automatic host detection of timing parameters, erase block sizes, and supported instruction sets without hardcoded configuration.
AT25FF041A-SHN-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 4Mbit
- Memory Organization:
- 2M x 2
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 22µs, 6.5ms
- 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
AT25FF041A-SHN-B FAQ
1.How can I place an order for AT25FF041A-SHN-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF041A-SHN-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 AT25FF041A-SHN-B reliable?
The price and inventory of AT25FF041A-SHN-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25FF041A-SHN-B is usually 5 days.
3.What payment methods are accepted for AT25FF041A-SHN-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF041A-SHN-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF041A-SHN-B?
AT25FF041A-SHN-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF041A-SHN-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 AT25FF041A-SHN-B?
For technical support, including AT25FF041A-SHN-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF041A-SHN-B requirements.
6.How does Aetrix verify that AT25FF041A-SHN-B is sourced from the original manufacturer or authorized distributors?
All AT25FF041A-SHN-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 AT25FF041A-SHN-B meets industry standards.
7.What is the process for return or replacement of AT25FF041A-SHN-B?
All AT25FF041A-SHN-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF041A-SHN-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 AT25FF041A-SHN-B part is unused and in its original packaging.
Return procedure for AT25FF041A-SHN-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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