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Renesas AT25FF161A-MAHN-T
- Part No.:
- AT25FF161A-MAHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25FF161A-MAHN-T.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:3,376
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Product details
Overview
AT25FF161A-MAHN-T from Renesas Electronics is a 16-Mbit SPI serial flash memory IC supporting quad I/O, XiP (eXecute-in-Place), and multi-voltage operation (1.65 V–3.75 V). It delivers up to 133 MHz clock frequency in 1-4-4 mode, features 4/32/64-kB block erase, 100,000 program/erase cycles, and ultra-low 5–7 nA Ultra-Deep Power-Down current. It is used for firmware storage and direct code execution in resource-constrained embedded systems.
For engineers reviewing the AT25FF161A-MAHN-T datasheet, AT25FF161A-MAHN-T pinout, AT25FF161A-MAHN-T application, or AT25FF161A-MAHN-T equivalent, key selection considerations include XiP support, multi-I/O timing compatibility, industrial temperature range (–40 °C to +105 °C), JEDEC SFDP compliance, and OTP security register availability.
Technical Context
The AT25FF161A-MAHN-T implements a flexible SPI interface with full backward compatibility across modes 0 and 3, and extends functionality via dual-output (1-1-2), quad-output (1-1-4), quad-I/O (1-4-4), and XiP (0-4-4) protocols. Its command set includes suspend/resume for concurrent erase/program operations and supports nested execution.
Internally, it uses a segmented block architecture with configurable protection (individual blocks or start/end regions), non-volatile/volatile status registers, and five dedicated status registers for granular control. The device integrates hardware reset (JEDEC-compliant), software reset/terminate commands, and three 128-byte One-Time Programmable security registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MB) - sufficient for boot firmware, configuration data, and small OS images in microcontroller-based systems. |
| Supply Voltage | 1.65 V – 3.75 V - enables direct interfacing with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifting. |
| Max Clock Frequency | 133 MHz (1-4-4 mode) - enables high-throughput XiP execution and fast firmware updates over SPI. |
| Erase Granularity | 4-kB / 32-kB / 64-kB blocks + full chip - allows fine-grained firmware patching and wear leveling in field-upgradable devices. |
| Power-Down Current | 5–7 nA (Ultra-Deep Power-Down) - critical for battery-powered IoT endpoints requiring multi-year shelf life and low quiescent power. |
| Data Retention | 10 years at –40 °C to +105 °C - validated for automotive under-hood and industrial control applications with extended thermal stress. |
| Endurance | 100,000 program/erase cycles (–40 °C to +85 °C); 10,000 cycles (–40 °C to +105 °C) - supports frequent OTA update cycles in edge gateways. |
Pinout & Package
AT25FF161A-MAHN-T is packaged in an 8-pad, 2 × 3 × 0.6 mm DFN (Dual Flat No-lead) package with wettable flank capability per J-STD-020. This RoHS-compliant, halogen-free package supports automated optical inspection (AOI) and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command/data transfer; supports daisy-chaining multiple devices on shared bus. |
| DO (IO1) | Data Output / I/O 1 | Primary output in standard/quad modes; bidirectional in quad-I/O/XiP for address/data multiplexing. |
| WP# | Write Protect | Hardware lock for status register and protected memory blocks; active-low, debounced for robust ESD immunity. |
| HOLD# | Hold Control | Pauses ongoing read/write without deselecting device; enables low-latency interrupt handling during memory access. |
| DI (IO0) | Data Input / I/O 0 | Primary input in standard/quad modes; bidirectional in quad-I/O/XiP for command/address/data flow. |
| CLK | Clock Input | Drives all synchronous transfers; supports up to 133 MHz in 1-4-4 mode with programmable drive strength. |
| VCC | Power Supply | Single 1.65–3.75 V supply; internal LDO ensures stable core voltage across wide input range. |
| GND | Ground | Reference for all I/O and internal circuitry; separate analog/digital ground not required due to integrated noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O & XiP Support | Enables 0-4-4 continuous read mode with no opcode overhead, reducing instruction fetch latency by >40% vs. standard SPI in MCU boot scenarios. |
| Erase/Program Suspend | Allows real-time interruption of long erase/program operations to service time-critical reads, enabling deterministic response in RTOS environments. |
| Three 128-byte OTP Registers | Provides immutable storage for cryptographic keys, device IDs, or calibration data-locked permanently after programming to prevent tampering. |
| User-Configurable I/O Drive Strength | Adjusts output slew rate and current to match trace impedance and reduce EMI in high-speed PCB designs without external termination. |
| SFDP Compliance | Exposes JEDEC-standard parameter table via 5Ah command, enabling automatic driver configuration in Linux MTD and Zephyr flash subsystems. |
Applications
| Firmware Storage in Industrial PLCs | Secure Boot in Edge AI Gateways |
|---|---|
Use Scenario: Stores firmware images and runtime configuration for programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Non-volatile program memory with XiP capability and 10-year data retention at +105 °C. Use Value: Eliminates external RAM copy step during boot, reducing BOM cost and startup time while meeting IEC 61131-3 reliability requirements. |
Use Scenario: Holds signed bootloader, root-of-trust keys, and secure firmware partitions in AI inference gateways deployed at network edge. IC Role / Device Role / Timing Role: Trusted storage for cryptographic assets using OTP registers and individual block protection. Use Value: Prevents unauthorized firmware modification via hardware-enforced write-lock and tamper-proof key storage. |
| Low-Power Sensor Node Firmware | Automotive Infotainment Configuration |
Use Scenario: Stores sensor fusion algorithms and calibration tables in battery-powered environmental monitoring nodes with 10+ year deployment life. IC Role / Device Role / Timing Role: Ultra-low-power flash memory with 5–7 nA UDPD current and 100,000-cycle endurance. Use Value: Extends battery life by minimizing background leakage and enabling deep-sleep wake-on-event firmware execution. |
Use Scenario: Stores UI assets, voice model parameters, and vehicle-specific settings in head-unit infotainment systems qualified to AEC-Q100 Grade 2. IC Role / Device Role / Timing Role: High-reliability SPI flash with –40 °C to +105 °C operation and JEDEC hardware reset. Use Value: Ensures deterministic recovery after brown-out events and maintains data integrity across 15-year vehicle lifecycle. |
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 W25Q16JW | 16 Mbit, 1.65–3.6 V, 133 MHz max, but lacks OTP registers and XiP 0-4-4 mode; supports only 1-1-4/1-4-4. | Lower security assurance; unsuitable for secure boot where immutable key storage is required. | Choose when cost sensitivity outweighs OTP and XiP needs; verify SFDP table compatibility with host driver stack. |
| Micron MT25QL128ABA | 128 Mbit density, 1.7–2.0 V or 2.7–3.6 V dual-voltage support, 133 MHz, includes 4-KB uniform sector erase only. | Higher density but incompatible voltage range for 1.65 V systems; no Ultra-Deep Power-Down mode (min 2 µA). | Prefer for high-capacity logging or larger firmware images; avoid in ultra-low-power or single-supply 1.65 V designs. |
Compared with W25Q16JW and MT25QL128ABA, the AT25FF161A-MAHN-T uniquely combines OTP security, XiP-optimized 0-4-4 mode, sub-10 nA power-down, and seamless 1.65 V operation-making it optimal for secure, battery-constrained, and thermally demanding embedded deployments.
Availability
AT25FF161A-MAHN-T is available at Aetrix Electronics and suitable for industrial automation, edge AI gateways, battery-powered sensors, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25FF161A-MAHN-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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets, with strong IP in flash memory, MCUs, and analog mixed-signal technologies.
The AT25FF161A belongs to Renesas' high-performance serial flash product line, engineered specifically for secure, low-power, and thermally robust firmware storage in next-generation connected devices.
FAQ
What is the operating temperature range supported by the AT25FF161A-MAHN-T?
The AT25FF161A-MAHN-T is rated for –40 °C to +105 °C operation, validated for industrial and automotive-grade applications. Data retention is guaranteed for 10 years across this full range, and endurance is specified at 10,000 program/erase cycles within this thermal envelope. This makes the AT25FF161A-MAHN-T suitable for under-hood automotive modules and factory-floor PLCs where ambient temperatures exceed +85 °C.
Does the AT25FF161A-MAHN-T support execute-in-place (XiP) operation?
Yes, the AT25FF161A-MAHN-T fully supports XiP via its 0-4-4 command format, which eliminates opcode transmission overhead and enables continuous burst reads directly into CPU instruction fetch units. This mode requires host controller support for quad-I/O addressing and is optimized for deterministic latency in real-time boot sequences. The AT25FF161A-MAHN-T also supports 1-4-4 and 1-1-4 modes for backward compatibility.
How many One-Time Programmable (OTP) security registers does the AT25FF161A-MAHN-T include?
The AT25FF161A-MAHN-T includes three independent 128-byte OTP security registers, each programmable once and permanently lockable via dedicated commands (9Bh/6Fh). These registers are physically isolated from main array memory and retain values across power cycles and temperature extremes. Their presence distinguishes the AT25FF161A-MAHN-T from most competing serial flash devices and enables secure key injection during manufacturing.
What power-saving modes are available on the AT25FF161A-MAHN-T?
The AT25FF161A-MAHN-T offers three low-power states: Standby (30 µA typical), Deep Power-Down (8.2 µA typical), and Ultra-Deep Power-Down (5–7 nA typical). UDPD mode is entered via 79h command and exited with ABh, preserving all register states and memory contents. This ultra-low leakage enables multi-year battery life in always-on sensor nodes - a capability not found in standard SPI flash competitors.
Is the AT25FF161A-MAHN-T compatible with JEDEC-standard Serial Flash Discoverable Parameters (SFDP)?
Yes, the AT25FF161A-MAHN-T implements JEDEC JESD216B-compliant SFDP, accessible via command 5Ah. The SFDP table provides host software with precise timing parameters, erase block mapping, and feature flags - enabling automatic driver initialization in Linux, Zephyr, and bare-metal bootloaders. This eliminates hard-coded timing assumptions and improves portability across platforms.
AT25FF161A-MAHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 12µs, 8ms
- 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-UDFN (2x3)
AT25FF161A-MAHN-T FAQ
1.How can I place an order for AT25FF161A-MAHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF161A-MAHN-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 AT25FF161A-MAHN-T reliable?
The price and inventory of AT25FF161A-MAHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25FF161A-MAHN-T is usually 5 days.
3.What payment methods are accepted for AT25FF161A-MAHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF161A-MAHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF161A-MAHN-T?
AT25FF161A-MAHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF161A-MAHN-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 AT25FF161A-MAHN-T?
For technical support, including AT25FF161A-MAHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF161A-MAHN-T requirements.
6.How does Aetrix verify that AT25FF161A-MAHN-T is sourced from the original manufacturer or authorized distributors?
All AT25FF161A-MAHN-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 AT25FF161A-MAHN-T meets industry standards.
7.What is the process for return or replacement of AT25FF161A-MAHN-T?
All AT25FF161A-MAHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF161A-MAHN-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 AT25FF161A-MAHN-T part is unused and in its original packaging.
Return procedure for AT25FF161A-MAHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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