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Renesas AT25FF161A-DWFHR
- Part No.:
- AT25FF161A-DWFHR
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
AT25FF161A-DWFHR.pdf
- Description:
- 16 MBIT, WIDE VCC (1.65V TO 3.6V
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
AT25FF161A-DWFHR from Renesas Electronics is a 16-Mbit SPI serial flash memory IC with multi-I/O support, operating across 1.65 V–3.75 V supply and rated for –40 °C to +105 °C. It supports standard (1-1-1), dual-output (1-1-2), quad-output (1-1-4), quad I/O (1-4-4), and eXecute-in-Place (XiP) modes up to 133 MHz, enabling high-speed code storage and execution in resource-constrained embedded systems.
For engineers reviewing the AT25FF161A-DWFHR datasheet, AT25FF161A-DWFHR pinout, AT25FF161A-DWFHR application, or AT25FF161A-DWFHR equivalent, key selection considerations include its 8-ball WLCSP package, ultra-deep power-down current (5–7 nA), 100,000 program/erase cycles, flexible block protection, and SFDP-compliant configuration - all critical for low-power, secure, and field-upgradable designs.
Technical Context
The AT25FF161A-DWFHR implements a hierarchical erase architecture with 4-kB, 32-kB, 64-kB, and full-chip erase options, enabling granular firmware partitioning and over-the-air update resilience. Its command set includes dedicated suspend/resume (75h/B0h, 7Ah/D0h) and nested operation support, allowing background programming while servicing read requests.
It features five status registers (SR1–SR5), non-volatile/volatile SR configurations, and JEDEC-standard hardware reset (99h) plus software-controlled Reset/Terminate commands. Memory protection includes individual block lock/unlock (36h/39h), global lock (7Eh), and OTP security registers (3 × 128-byte) with programmable lock bits for secure boot and device identity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MB) - sufficient for bootloader, firmware image, and parameter storage in compact MCU-based systems |
| Interface | SPI-compatible with modes 0/3, dual/quad I/O, and XiP (0-4-4/1-4-4) - enables direct code execution without RAM copy |
| Max Clock Frequency | 133 MHz - delivers up to 66.5 MB/s read throughput in quad I/O mode, reducing boot latency |
| Power Consumption | 5–7 nA Ultra-Deep Power-Down current - extends battery life in always-on IoT edge nodes |
| Erase/Program Endurance | 100,000 cycles at –40 °C to +85 °C; 10,000 cycles at –40 °C to +105 °C - validated for industrial thermal cycling |
| Data Retention | 20 years at –40 °C to +85 °C; 10 years at –40 °C to +105 °C - ensures long-term reliability in automotive and industrial deployments |
| Operating Voltage | 1.65 V–3.75 V - compatible with single-supply 1.8 V, 2.5 V, 3.3 V, and mixed-voltage SoC interfaces |
Pinout & Package
AT25FF161A-DWFHR uses an 8-ball, 3 mm × 2 mm × 0.3 mm WLCSP (Wafer-Level Chip Scale Package) with bottom-side solder balls. This ultra-compact, lead-free RoHS-compliant package supports high-density PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIO) | I/O Supply Voltage | Independent 1.65–3.75 V supply for I/O pins - decouples core logic voltage from interface voltage |
| 2 (CS#) | Chip Select | Active-low enable for SPI command initiation; supports daisy-chain and multi-device bus sharing |
| 3 (DO / IO1) | Data Output / I/O Line 1 | Primary data output in standard/dual mode; bidirectional in quad I/O/XiP - enables high-speed read/write |
| 4 (WP#) | Write Protect | Hardware-enabled memory protection; active-low, latched during write operations to prevent accidental erase |
| 5 (GND) | Ground | Reference return path for VCC and VIO supplies - critical for signal integrity in high-frequency SPI operation |
| 6 (CLK) | Clock Input | Master-controlled SPI clock up to 133 MHz - timing-critical for quad I/O and XiP burst reads |
| 7 (DI / IO0) | Data Input / I/O Line 0 | Primary data input in standard mode; bidirectional in quad I/O - supports command/address/data transfer |
| 8 (VCC) | Core Supply Voltage | 1.65–3.75 V core logic supply - powers internal state machine, control logic, and flash array |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O & XiP Support | Enables 0-4-4 continuous read mode - eliminates opcode overhead and sustains >50 MB/s effective throughput |
| Erase Program Suspend/Resume | Allows interrupting long erase/program operations to service urgent reads - essential for real-time system responsiveness |
| Three 128-byte OTP Security Registers | Provides immutable storage for cryptographic keys, device IDs, or secure boot flags - locked permanently after programming |
| Serial Flash Discoverable Parameters (SFDP) | Standardized JEDEC SFDP table (5Ah) - enables automatic driver configuration and vendor-agnostic firmware updates |
| User-Configurable I/O Drive Strength | Adjusts output drive on DI/DO/IO0/IO1 pins - optimizes signal integrity across varying trace lengths and load capacitance |
| Flexible Block Protection | Supports top/bottom protected regions plus individual block lock - allows safe OTA update partitioning without full chip lock |
Applications
| Industrial PLC Firmware Storage | Automotive Telematics Boot Code |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments with wide temperature swings. IC Role / Device Role / Timing Role: Non-volatile program memory supporting cold-start boot and field firmware updates via CAN or Ethernet. Use Value: 10,000 program/erase cycles and 10-year data retention at –40 °C to +105 °C ensure operational continuity over 15+ year equipment lifecycles. |
Use Scenario: Hosting boot loader and secure boot manifest in vehicle telematics control units requiring ASIL-B–aligned memory integrity. IC Role / Device Role / Timing Role: Secure, authenticated code storage with OTP registers for root-of-trust key storage and anti-rollback enforcement. Use Value: Three 128-byte OTP registers and individual block lock enable tamper-resistant boot chain implementation compliant with UNECE R155 requirements. |
| IoT Edge Sensor Node Code Storage | Medical Wearable Configuration Memory |
Use Scenario: Holding firmware and calibration data in battery-powered environmental sensors deployed in remote locations with infrequent maintenance windows. IC Role / Device Role / Timing Role: Low-power persistent memory supporting deep-sleep wake-up and over-the-air firmware patching. Use Value: 5–7 nA ultra-deep power-down current extends 10-year battery life in coin-cell–powered devices without sacrificing update capability. |
Use Scenario: Storing device-specific calibration coefficients, user preferences, and regulatory compliance logs in FDA-cleared wearable health monitors. IC Role / Device Role / Timing Role: Reliable, high-endurance data logging memory with error-resilient block erase architecture. Use Value: 4-kB block erase granularity enables precise parameter updates without disturbing adjacent clinical data sectors. |
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 or 2.7–3.6 V dual-voltage range; no UDPD mode; 100 µA DPD current vs. AT25FF161A-DWFHR's 5–7 nA | Lacks ultra-deep power-down and OTP security registers - unsuitable for battery-critical or secure boot use cases | Select AT25FF161A-DWFHR when sub-10 nA sleep current and hardware-enforced security are required |
| Micron MT25QL128ABA | 128 Mbit density; supports 133 MHz Quad I/O but requires 2.7–3.6 V only; no 1.65 V operation or OTP registers | Higher density but incompatible with 1.8 V systems and lacks per-device identity storage | Choose AT25FF161A-DWFHR for space-constrained 1.8 V designs needing OTP-based device authentication |
Compared with W25Q16JW and MT25QL128ABA, AT25FF161A-DWFHR uniquely combines ultra-low-power operation (5–7 nA UDPD), 1.65 V minimum voltage, and three OTP security registers - making it optimal for secure, battery-operated edge devices where voltage headroom and cryptographic identity are design constraints.
Availability
AT25FF161A-DWFHR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive telematics boot code, and IoT edge sensor node code storage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25FF161A-DWFHR 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 industrial, automotive, and IoT markets.
The AT25FF161A-DWFHR belongs to Renesas' AT25FF family of high-performance serial flash memories, designed specifically for secure, low-power, and thermally robust embedded code and data storage in mission-critical applications.
FAQ
What is the package type and dimensions of the AT25FF161A-DWFHR?
The AT25FF161A-DWFHR uses an 8-ball, 3 mm × 2 mm × 0.3 mm Wafer-Level Chip Scale Package (WLCSP). This ultra-compact, bottom-terminal package supports fine-pitch PCB assembly and meets JEDEC J-STD-020 moisture sensitivity level 3 requirements. The "DWFHR" suffix explicitly denotes this WLCSP variant with halogen-free, RoHS-compliant construction.
Does the AT25FF161A-DWFHR support execute-in-place (XiP) operation?
Yes, the AT25FF161A-DWFHR supports eXecute-in-Place (XiP) using the 0-4-4 and 1-4-4 command formats. It enables continuous burst reads without reissuing opcodes, achieving sustained throughput up to 66.5 MB/s at 133 MHz. The device includes dedicated XiP timing parameters and supports wrap-mode addressing (77h) to optimize sequential instruction fetch efficiency.
How many program/erase cycles does the AT25FF161A-DWFHR guarantee?
The AT25FF161A-DWFHR guarantees 100,000 program/erase cycles at –40 °C to +85 °C and 10,000 cycles at –40 °C to +105 °C. These endurance ratings are validated per JEDEC JESD22-A117 and apply to all supported erase granularities (4-kB, 32-kB, 64-kB, and full chip), ensuring reliable field firmware updates across extended thermal ranges.
What security features does the AT25FF161A-DWFHR provide?
The AT25FF161A-DWFHR includes three 128-byte One-Time Programmable (OTP) security registers, a factory-programmed 128-byte unique identifier, individual and global block lock commands (36h/7Eh), and status register lock (6Fh). OTP registers can be permanently locked after programming to store cryptographic keys or device certificates, meeting requirements for secure boot and anti-cloning implementations.
What is the lowest power-consumption mode of the AT25FF161A-DWFHR?
The AT25FF161A-DWFHR supports Ultra-Deep Power-Down (UDPD) mode with typical current consumption of 5–7 nA. Entry is triggered by the 79h command; exit occurs via ABh with device ID read. This mode maintains full memory retention while minimizing leakage, making it ideal for battery-backed systems requiring multi-year shelf life or decades-long deployment without maintenance.
AT25FF161A-DWFHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR (SLC)
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 50µs, 7.5ms
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
AT25FF161A-DWFHR FAQ
1.How can I place an order for AT25FF161A-DWFHR through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25FF161A-DWFHR 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-DWFHR reliable?
The price and inventory of AT25FF161A-DWFHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25FF161A-DWFHR is usually 5 days.
3.What payment methods are accepted for AT25FF161A-DWFHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25FF161A-DWFHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25FF161A-DWFHR?
AT25FF161A-DWFHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25FF161A-DWFHR 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-DWFHR?
For technical support, including AT25FF161A-DWFHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25FF161A-DWFHR requirements.
6.How does Aetrix verify that AT25FF161A-DWFHR is sourced from the original manufacturer or authorized distributors?
All AT25FF161A-DWFHR 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-DWFHR meets industry standards.
7.What is the process for return or replacement of AT25FF161A-DWFHR?
All AT25FF161A-DWFHR units undergo pre-shipment inspection (PSI). If there is an issue with AT25FF161A-DWFHR, 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-DWFHR part is unused and in its original packaging.
Return procedure for AT25FF161A-DWFHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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