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Renesas AT25FF041A-SHN-T
- Part No.:
- AT25FF041A-SHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25FF041A-SHN-T.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,057
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Product details
Overview
AT25FF041A-SHN-T 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 enables code storage and execution in space-constrained embedded microcontrollers and IoT edge nodes.
For engineers reviewing the AT25FF041A-SHN-T datasheet, AT25FF041A-SHN-T pinout, AT25FF041A-SHN-T application, or AT25FF041A-SHN-T equivalent, key selection criteria include multi-I/O timing compatibility, deep power-down current (7 nA), OTP security register support, JEDEC SFDP compliance, and -40°C to +105°C extended temperature operation.
Technical Context
The AT25FF041A-SHN-T implements a flexible SPI-based serial flash architecture with hardware-reset capability, JEDEC-standard manufacturer/device ID (9Fh), and Serial Flash Discoverable Parameters (5Ah). Its command set includes XiP read (EBh/E7h), quad I/O program (32h), and suspend/resume (75h/7Ah) for concurrent background operations.
It supports three non-volatile status registers with individual lock bits, volatile status register write enable (50h), and configurable I/O drive strength. Memory protection includes individual block lock (36h), global lock (7Eh), and user-definable protected area at memory start or end.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 KB) - sufficient for firmware images, boot code, and configuration data in resource-limited MCUs. |
| Supply Voltage | 1.65 V – 3.6 V - compatible with single-supply 1.8 V and 3.3 V systems without level-shifting. |
| Max Clock Frequency | 133 MHz (1-4-4 mode) - enables high-throughput XiP execution with sub-100 ns effective access latency. |
| Power-Down Current | 7 nA Ultra-Deep Power-Down - extends battery life in always-on sensor nodes and wearable devices. |
| Erase Endurance | 10k cycles at -40°C to +105°C - validated for industrial control firmware updates under thermal stress. |
| Data Retention | 10 years at -40°C to +105°C - ensures long-term reliability in automotive under-hood and industrial motor drives. |
| Operating Temp | -40°C to +105°C - qualified for extended-temperature applications including automotive infotainment and power electronics. |
| Security Features | 1×128-byte UID + 3×128-byte OTP registers - supports device authentication, secure boot key storage, and anti-cloning. |
Pinout & Package
AT25FF041A-SHN-T is packaged in an 8-lead, 150-mil narrow SOIC (SOIC-8N) with standard SPI pinout and no exposed pad. Pin functions are electrically defined per JEDEC MS-012 and Renesas DS-AT25FF041A-184 Rev. N.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command/address/data transfers; supports daisy-chaining in multi-device buses. |
| DO (IO1) | Data Output / I/O 1 | Primary output during standard/dual reads; bidirectional in quad I/O mode for address/data multiplexing. |
| WP# | Write Protect Input | Hardware-enabled memory protection; low = enables status register write and block lock/unlock commands. |
| GND | Ground Reference | Signal and power return path; decoupling capacitor must be placed within 5 mm of VCC and GND pins. |
| VCC | Power Supply | 1.65–3.6 V core voltage; requires 100 nF ceramic bypass capacitor adjacent to pin. |
| HOLD# | Hold Input | Suspends ongoing read/write without deselecting chip; preserves internal state during host interrupt handling. |
| DI (IO0) | Data Input / I/O 0 | Primary input for commands/addresses; bidirectional in quad I/O mode for full-duplex command streaming. |
| CLK | Serial Clock Input | Edge-triggered master clock; supports up to 133 MHz in quad I/O XiP mode with precise setup/hold timing. |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad I/O & XiP Support | Enables direct code execution from flash (XiP) with 1-4-4 mode, reducing external RAM footprint in Cortex-M0+/M4 systems. |
| Uniform Block Erase | 4-kB, 32-kB, and 64-kB erase granularities allow fine-grained firmware update partitioning without over-erasing. |
| Erase/Program Suspend | Allows foreground read access during background erase/program - critical for real-time logging and OTA update coexistence. |
| OTP Security Registers | Three 128-byte one-time programmable areas store cryptographic keys, device certificates, or calibration data with permanent lock capability. |
| Ultra-Deep Power-Down | 7 nA quiescent current enables >10-year shelf life in battery-backed asset trackers and smart meters. |
| JEDEC SFDP Compliance | Self-describing parameter table (5Ah command) allows automatic driver initialization across toolchains and RTOS platforms. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing bootloader and safety-critical firmware in programmable logic controllers operating continuously at 85°C ambient. IC Role / Device Role / Timing Role: Non-volatile code storage with XiP-capable quad I/O interface enabling deterministic boot time under ASIL-B constraints. Use Value: 10-year data retention at +105°C and 10k erase cycles ensure field-replaceable firmware integrity over 15+ year product lifecycle. |
Use Scenario: Hosting boot image and sensor fusion algorithms for camera-based lane-departure warning systems. IC Role / Device Role / Timing Role: High-speed quad I/O flash providing <100 µs instruction fetch latency during cold-start boot sequence. Use Value: 133 MHz XiP operation and SFDP auto-configuration reduce boot firmware integration effort in AUTOSAR MCAL stacks. |
| Medical Wearable Sensor Logging | Smart Meter Secure Configuration |
|
Use Scenario: Capturing ECG waveform metadata and calibration logs in disposable patch monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power serial flash managing cyclic data buffering with ultra-deep power-down between sampling intervals. Use Value: 7 nA UDPD current extends operational life to >3 years on CR2032, while OTP registers securely bind device identity to cloud enrollment. |
Use Scenario: Storing tariff tables, encryption keys, and tamper-event logs in ANSI C12.22-compliant electricity meters deployed outdoors. IC Role / Device Role / Timing Role: Temperature-hardened flash with hardware write protection (WP#) and individual block locking for regulatory audit trail preservation. Use Value: -40°C to +105°C qualification and 10k endurance guarantee secure field updates across 20+ years of utility infrastructure deployment. |
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, 1.7–2.0 V supply only; no OTP registers; max 104 MHz in quad mode; lacks XiP 0-4-4 mode. | Targeted at cost-sensitive consumer electronics; not qualified for extended temperature or secure boot use cases. | Select W25Q40EW only if system operates strictly at 1.8 V and does not require OTP security or XiP execution. |
| Macronix MX25L4033F | 4 Mbit, 2.7–3.6 V supply; supports 133 MHz quad I/O but no XiP 0-4-4; no factory UID; 100k cycles at +85°C only. | Suitable for industrial HMI panels with 3.3 V rails; lacks extended-temp endurance and cryptographic binding capability. | Choose MX25L4033F when design uses 3.3 V exclusively and does not require UID-based device attestation or -40°C to +105°C data retention. |
Compared with W25Q40EW and MX25L4033F, the AT25FF041A-SHN-T uniquely combines 1.65–3.6 V universal voltage support, OTP-based security, XiP 0-4-4 mode, and 10k/10-year extended-temperature qualification-making it the only option for secure, wide-voltage, high-reliability embedded firmware storage.
Availability
AT25FF041A-SHN-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical wearable sensor logging requiring stable component supply across long production lifecycles.
Supply support for AT25FF041A-SHN-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and enterprise applications.
The AT25FF041A-SHN-T belongs to Renesas' AT25FF family of high-reliability serial flash memories designed specifically for secure, extended-temperature firmware storage in safety-critical embedded systems.
FAQ
What is the package type and lead count of the AT25FF041A-SHN-T?
The AT25FF041A-SHN-T uses an 8-lead, 150-mil narrow SOIC (SOIC-8N) package with standard JEDEC MS-012 dimensions. This package is RoHS-compliant, halogen-free, and optimized for automated surface-mount assembly in high-volume industrial PCB production. The AT25FF041A-SHN-T pinout matches industry-standard SPI flash footprints, simplifying layout reuse across Renesas' AT25FF series.
Does the AT25FF041A-SHN-T support execute-in-place (XiP) operation?
Yes, the AT25FF041A-SHN-T supports XiP operation in both 1-4-4 and 0-4-4 modes, enabling direct instruction fetch from flash without loading into RAM. This reduces system memory footprint and improves boot determinism. The AT25FF041A-SHN-T implements dedicated XiP read commands (EBh, E7h) and burst wrap configuration (77h) to optimize sequential access patterns in Cortex-M and RISC-V MCU designs.
What security features does the AT25FF041A-SHN-T provide?
The AT25FF041A-SHN-T includes a factory-programmed 128-byte unique identifier and three 128-byte one-time programmable (OTP) security registers. These OTP areas can store cryptographic keys, device certificates, or calibration data and are permanently lockable via command 9Bh. The AT25FF041A-SHN-T also supports individual block locking (36h), global protection (7Eh), and hardware WP# pin control for layered memory security.
What is the minimum and maximum supply voltage for the AT25FF041A-SHN-T?
The AT25FF041A-SHN-T operates across a 1.65 V to 3.6 V supply range, supporting both 1.8 V and 3.3 V system rails without external level shifters. This wide voltage range ensures interoperability with modern ultra-low-power MCUs and legacy industrial controllers. The AT25FF041A-SHN-T maintains full functionality-including 133 MHz quad I/O and XiP-across the entire voltage window per DS-AT25FF041A-184 Rev. N.
How does the AT25FF041A-SHN-T handle power-down states?
The AT25FF041A-SHN-T offers three power-down modes: standby (30 µA), deep power-down (DPD, 8.5 µA), and ultra-deep power-down (UDPD, 7 nA). Entry and exit are controlled via dedicated commands (B9h, 79h, ABh). The AT25FF041A-SHN-T retains all register and memory states in DPD/UDPD, enabling instant wake-up with no reinitialization required-critical for battery-powered edge sensors and metering applications.
AT25FF041A-SHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 4Mbit
- Memory Organization:
- 2M x 2
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 22µs, 2.6ms
- 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-T FAQ
1.How can I place an order for AT25FF041A-SHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF041A-SHN-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 AT25FF041A-SHN-T reliable?
The price and inventory of AT25FF041A-SHN-T 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-T is usually 5 days.
3.What payment methods are accepted for AT25FF041A-SHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF041A-SHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF041A-SHN-T?
AT25FF041A-SHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF041A-SHN-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 AT25FF041A-SHN-T?
For technical support, including AT25FF041A-SHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF041A-SHN-T requirements.
6.How does Aetrix verify that AT25FF041A-SHN-T is sourced from the original manufacturer or authorized distributors?
All AT25FF041A-SHN-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 AT25FF041A-SHN-T meets industry standards.
7.What is the process for return or replacement of AT25FF041A-SHN-T?
All AT25FF041A-SHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF041A-SHN-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 AT25FF041A-SHN-T part is unused and in its original packaging.
Return procedure for AT25FF041A-SHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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