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Renesas AT25FF161A-SSPN-T
- Part No.:
- AT25FF161A-SSPN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25FF161A-SSPN-T.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,984
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Product details
Overview
AT25FF161A-SSPN-T from Renesas Electronics is a 16-Mbit SPI serial flash memory IC supporting 1.65 V–3.75 V operation, quad I/O (1-4-4) and eXecute-in-Place (XiP) modes, and up to 133 MHz clock frequency. It delivers 5–7 nA ultra-deep power-down current and supports 4/32/64-kB block erase for firmware storage in resource-constrained embedded systems.
For engineers reviewing the AT25FF161A-SSPN-T datasheet, AT25FF161A-SSPN-T pinout, AT25FF161A-SSPN-T application, or AT25FF161A-SSPN-T equivalent, this device is selected for low-voltage boot code storage, secure firmware updates with OTP registers, and high-speed XiP execution in industrial controllers and IoT edge nodes where power efficiency and multi-I/O bandwidth are critical.
Technical Context
The AT25FF161A-SSPN-T implements a JEDEC-standard SPI interface with full support for modes 0 and 3, dual-output (1-1-2), quad-output (1-1-4), quad I/O (1-4-4), and XiP (0-4-4) command formats. Its architecture includes five status registers, SFDP compliance, and hardware reset via dedicated /RESET pin or JEDEC-standard command sequence.
Memory organization comprises 2,048 pages of 256 bytes each, arranged in uniform 4-kB sectors across a 2-MB address space. Erase operations are fully suspend/resumable, and programming supports byte/page (1–256 B) and sequential modes - enabling robust in-field firmware patching without full chip reflash.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MB) - sufficient for boot firmware + application code in compact MCU-based designs |
| Supply Voltage Range | 1.65 V to 3.75 V - enables direct interfacing with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters |
| Max Clock Frequency | 133 MHz - achieves up to 532 MB/s effective read throughput in quad I/O mode |
| Erase Granularity | 4-kB / 32-kB / 64-kB blocks + full chip - allows selective firmware update without disturbing configuration data |
| Power-Down Current | 5–7 nA (Ultra-Deep Power-Down) - extends battery life in always-on sensor nodes and wearable devices |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at –40°C to +85°C - meets industrial lifecycle requirements |
| Security Features | 3 × 128-byte OTP security registers + factory-unique 128-byte ID - supports secure key provisioning and device authentication |
Pinout & Package
AT25FF161A-SSPN-T is packaged in an 8-lead, 150-mil narrow SOIC (SOIC-8) with standard SPI pinout and /RESET functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select | Active-low enable for SPI command/address/data transfers; must be deasserted between transactions |
| DO (IO1) | Data Output / I/O 1 | Primary output during standard/dual/quad reads; bidirectional in quad I/O mode |
| /WP | Write Protect | Hardware lock for status register and memory protection bits; active-low, tied high for normal operation |
| /RESET | Hardware Reset | Asynchronous reset input that forces device into known state; supports JEDEC-standard reset timing |
| CLK | Clock Input | SPI clock input driving all internal timing; supports up to 133 MHz with defined setup/hold margins |
| DI (IO0) | Data Input / I/O 0 | Primary input for commands/addresses/data; bidirectional in quad I/O mode |
| /HOLD | Hold Control | Pauses ongoing read transfer without deselecting device; enables low-latency interrupt handling |
| VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| eXecute-in-Place (XiP) support | Enables direct CPU instruction fetch from flash via 0-4-4 command format, eliminating RAM copy overhead in boot-critical paths |
| Quad I/O (1-4-4) interface | Doubles effective bandwidth vs. standard SPI by using four I/O lines for both address and data phases |
| Erase/program suspend-resume | Allows background firmware update to pause for high-priority interrupts and resume without data loss or timeout risk |
| User-configurable I/O drive strength | Permits optimization of signal integrity and EMI on varied PCB trace lengths and load conditions |
| Serial Flash Discoverable Parameters (SFDP) | Provides standardized, read-only register map enabling automatic driver configuration without hard-coded timing tables |
| Individual block protection | Enables per-sector write-locking to safeguard bootloader, calibration data, or security keys from accidental overwrite |
Applications
| Industrial PLC Firmware Storage | IoT Edge Node Boot Code |
|---|---|
Use Scenario: Storing and executing real-time control firmware in programmable logic controllers operating continuously in harsh environments. IC Role / Device Role / Timing Role: Non-volatile program memory with XiP capability and 105°C extended temperature rating. Use Value: Eliminates external RAM dependency for boot code, reduces BOM cost, and ensures deterministic startup timing under thermal stress. |
Use Scenario: Hosting boot loader and sensor fusion firmware in battery-powered wireless sensor nodes deployed in remote locations. IC Role / Device Role / Timing Role: Low-power flash memory with 5–7 nA UDPD current and fast wake-up from deep sleep. Use Value: Extends operational lifetime beyond 10 years on coin-cell batteries while maintaining secure firmware update capability. |
| Medical Diagnostic Device Configuration | Automotive ADAS Camera Module |
Use Scenario: Storing calibrated sensor offsets, user preferences, and regulatory-compliant audit logs in portable ultrasound and ECG equipment. IC Role / Device Role / Timing Role: Secure, field-updatable non-volatile storage with OTP registers for cryptographic key binding. Use Value: Ensures HIPAA/GDPR data integrity through hardware-enforced write-protection and unique device identity. |
Use Scenario: Holding camera ISP firmware and lens correction parameters in automotive surround-view systems requiring AEC-Q100 Grade 3 qualification. IC Role / Device Role / Timing Role: High-reliability SPI flash with 100,000-cycle endurance and -40°C to +105°C operation. Use Value: Guarantees consistent image processing performance across vehicle lifetime without firmware corruption risk. |
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, 1.7–2.0 V supply only; no /RESET pin; supports DTR but lacks XiP 0-4-4 mode | Limited to 1.8 V systems; unsuitable for mixed-voltage designs or XiP-critical boot paths | Select when board uses only 1.8 V rail and does not require hardware reset or continuous-read XiP |
| Macronix MX25L1633F | 16 Mbit, 2.7–3.6 V range; supports 133 MHz quad I/O but no OTP registers or UDPD mode | Higher voltage requirement excludes battery-powered or low-power edge use cases | Choose for cost-sensitive 3.3 V industrial applications where ultra-low power and secure provisioning are not required |
Compared with W25Q16JW and MX25L1633F, the AT25FF161A-SSPN-T uniquely combines wide-voltage operation (1.65–3.75 V), hardware /RESET, OTP security, and 5–7 nA UDPD - making it the only option among the three qualified for battery-backed, secure, and thermally demanding embedded deployments.
Availability
AT25FF161A-SSPN-T is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive ADAS camera modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant green packaging.
Supply support for AT25FF161A-SSPN-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 AT25FF161A belongs to Renesas' high-performance serial flash product line, engineered specifically for low-voltage, low-power, and secure firmware storage in next-generation embedded systems.
FAQ
What is the maximum clock frequency supported by the AT25FF161A-SSPN-T in quad I/O mode?
The AT25FF161A-SSPN-T supports up to 133 MHz in quad I/O (1-4-4) mode at 1.65 V–3.75 V and –40°C to +85°C. At +105°C, the maximum rated frequency is 108 MHz per AC specifications in the official datasheet DS-AT25FF161A-182 Rev. R. This enables sustained read bandwidth exceeding 500 MB/s in optimized configurations.
Does the AT25FF161A-SSPN-T include hardware reset functionality?
Yes, the AT25FF161A-SSPN-T features a dedicated /RESET pin compliant with JEDEC-standard hardware reset timing. It also supports software-initiated reset via Enable Reset (66h) and Reset Device (99h) commands. Both methods force the device into a known initial state, clearing internal status and aborting pending operations.
How many one-time programmable (OTP) security registers does the AT25FF161A-SSPN-T provide?
The AT25FF161A-SSPN-T provides three 128-byte One Time Programmable (OTP) security registers, plus one factory-programmed 128-byte unique identifier. Each OTP register can be individually locked after programming to prevent modification, supporting secure key storage and device authentication workflows.
What package type is used for the AT25FF161A-SSPN-T variant?
The AT25FF161A-SSPN-T uses an 8-lead, 150-mil narrow SOIC package (SOIC-8). This industry-standard footprint ensures compatibility with legacy PCB layouts and automated assembly processes while maintaining thermal and mechanical reliability across industrial temperature ranges.
Can the AT25FF161A-SSPN-T execute code directly from flash (XiP)?
Yes, the AT25FF161A-SSPN-T supports eXecute-in-Place (XiP) via the 0-4-4 command format, enabling continuous read mode without repeated command opcodes. This eliminates instruction fetch latency and reduces CPU wait states, making AT25FF161A-SSPN-T suitable for real-time boot and firmware execution in resource-constrained MCUs.
AT25FF161A-SSPN-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:
- 16Mbit
- Memory Organization:
- 2M 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 ~ 3.75V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25FF161A-SSPN-T FAQ
1.How can I place an order for AT25FF161A-SSPN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF161A-SSPN-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-SSPN-T reliable?
The price and inventory of AT25FF161A-SSPN-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-SSPN-T is usually 5 days.
3.What payment methods are accepted for AT25FF161A-SSPN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF161A-SSPN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF161A-SSPN-T?
AT25FF161A-SSPN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF161A-SSPN-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-SSPN-T?
For technical support, including AT25FF161A-SSPN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF161A-SSPN-T requirements.
6.How does Aetrix verify that AT25FF161A-SSPN-T is sourced from the original manufacturer or authorized distributors?
All AT25FF161A-SSPN-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-SSPN-T meets industry standards.
7.What is the process for return or replacement of AT25FF161A-SSPN-T?
All AT25FF161A-SSPN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF161A-SSPN-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-SSPN-T part is unused and in its original packaging.
Return procedure for AT25FF161A-SSPN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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