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Renesas AT25EU0161A-SUN-T
- Part No.:
- AT25EU0161A-SUN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
AT25EU0161A-SUN-T.pdf
- Description:
- IC FLASH 16MBIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,846
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Product details
Overview
AT25EU0161A-SUN-T from Renesas Electronics is a 16 Mbit ultra-low-energy serial NOR Flash memory IC supporting 1.65V–3.6V operation, 85 MHz SPI interface (1-1-1/1-1-2/1-1-4), and 256-byte page erase. It delivers 8 ms typical erase time across all block sizes and 100 nA deep power-down current for battery-powered data logging and firmware storage.
For engineers reviewing the AT25EU0161A-SUN-T datasheet, AT25EU0161A-SUN-T pinout, AT25EU0161A-SUN-T application, or AT25EU0161A-SUN-T equivalent, key selection criteria include energy-per-operation efficiency, quad I/O support with continuous fast read, JEDEC SFDP v1.8 compliance, OTP security registers, and SOIC-8 (208 mil) package compatibility in industrial and portable embedded systems.
Technical Context
The AT25EU0161A-SUN-T implements a serial NOR architecture with unified command set compliant with JEDEC JESD216B SFDP v1.8, enabling automatic configuration discovery by host controllers. It supports four SPI modes - standard single I/O, dual output, quad output, and quad I/O - with continuous fast read for deterministic latency in real-time firmware execution.
Its erase architecture is optimized for low-energy event logging: all erase operations (256B page, 4KB, 32KB, 64KB, full chip) complete in 8 ms typical, reducing total energy per update via minimized active time. The 100 nA deep power-down mode eliminates external power gating in coin-cell or energy-harvesting systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 16 Mbit (2 MB) - sufficient for boot code + parameter storage in compact IoT edge nodes |
| Supply Voltage | 1.65V to 3.6V - supports direct connection to Li-ion, Li-po, and alkaline battery stacks without LDO |
| Max Clock Frequency | 85 MHz - enables sub-100 ns effective read access time with quad I/O continuous fast read |
| Page Erase Time | 8 ms typical (256 B) - reduces flash wear and CPU wait cycles during frequent small-data updates |
| Deep Power-Down Current | 100 nA - extends shelf life and operational runtime in always-on sensor nodes |
| SPI Interface Modes | 1-1-1, 1-1-2, 1-1-4, and 1-1-4 Quad I/O - allows flexible bandwidth scaling and legacy pinout reuse |
| JEDEC Compliance | SFDP v1.8 and standard ID - ensures plug-and-play integration with modern MCU boot ROMs and flash programmers |
Pinout & Package
AT25EU0161A-SUN-T is housed in an 8-pin SOIC-208-mil package with industry-standard pinout compatible with JEDEC MS-012AC. Pin functions align with standard serial NOR Flash definitions and support both hardware reset and write protection control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / /CS | Chip Select | Active-low enable for SPI command/address/data transfer; supports multi-device bus sharing |
| 2 / DO (IO1) | Data Output / I/O Line 1 | Serial data output in single/dual mode; bidirectional in quad I/O mode |
| 3 / /WP | Write Protect | Hardware lock for status register and sector protection; active-low, TTL-compatible |
| 4 / GND | Ground | Reference return path for VCC and I/O signals; requires low-impedance PCB connection |
| 5 / DI (IO0) | Data Input / I/O Line 0 | Serial address/command input in single mode; bidirectional in quad I/O mode |
| 6 / /HOLD | Hold Input | Pauses ongoing SPI transaction without deselecting device; enables multi-master arbitration |
| 7 / VCC | Power Supply | 1.65–3.6V core and I/O supply; decoupling capacitor required within 5 mm of pin |
| 8 / CLK | Serial Clock | Master-generated clock up to 85 MHz; phase/polarity configurable per SPI mode |
Key Features
| Feature | Design Value |
|---|---|
| 256-byte page erase | Enables fine-grained, low-energy updates for event logs without erasing entire sectors |
| 8 ms uniform erase time | Eliminates timing variability across block sizes-simplifies real-time scheduler design |
| 100 nA deep power-down | Removes need for external load switches in battery-backed applications like smart meters |
| Quad I/O with continuous fast read | Delivers 42.5 MB/s effective throughput while maintaining single-pin-command compatibility |
| OTP security registers | Stores immutable keys or calibration data resistant to field reprogramming |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG waveform sampling and timestamped event storage on coin-cell power. IC Role / Device Role / Timing Role: Nonvolatile data logger with deterministic 8 ms page erase and 100 nA sleep current. Use Value: Extends battery life beyond 5 years by minimizing energy per write cycle and eliminating external power gating. | Use Scenario: Firmware updates and tamper-event logging in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, low-energy code and configuration storage with OTP-protected calibration constants. Use Value: Meets IEC 62056-21 security requirements while reducing system-level power budget by >70% vs. legacy NOR Flash. |
| Industrial Wireless Sensor Node | Portable Medical Diagnostic Device |
Use Scenario: Duty-cycled temperature/humidity sensing with local history buffering before BLE transmission. IC Role / Device Role / Timing Role: Low-voltage (1.8V) event buffer supporting rapid 256B page writes between wake cycles. Use Value: Enables use of single-cell LiFePO₄ without voltage regulation, cutting BOM cost and board area. | Use Scenario: FDA-regulated diagnostic firmware storage with field-upgradable calibration tables. IC Role / Device Role / Timing Role: Trusted boot source with SFDP v1.8 auto-configuration and OTP-locked safety parameters. Use Value: Reduces qualification effort by guaranteeing JEDEC-standard interface behavior across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q16JVSNIQ | 16 Mbit, 1.7–2.0V or 2.7–3.6V dual supply; no 100 nA deep power-down; 20 ms typical page erase | Requires separate VCC/VIO rails; higher energy per erase; lacks SFDP v1.8 | Preferred where wide Vcc is not needed and legacy Winbond toolchain is mandated |
| Micron MT25QL128ABA1EW9-0SIT | 128 Mbit density; 1.7–2.0V only; 25 ms typical page erase; 2 µA deep power-down | Over-specified density increases cost; incompatible voltage range for 1.8V-only systems | Only suitable when >16 Mbit capacity and QSPI XIP performance are required |
Compared with W25Q16JVSNIQ and MT25QL128ABA1EW9-0SIT, the AT25EU0161A-SUN-T uniquely delivers 100 nA deep power-down, uniform 8 ms erase across all block sizes, and true 1.65–3.6V single-rail operation-making it optimal for energy-constrained, battery-powered edge devices requiring long service life and minimal system-level power management.
Availability
AT25EU0161A-SUN-T is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for AT25EU0161A-SUN-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 Corporation is a global semiconductor leader delivering trusted embedded design innovation through microcontrollers, analog, power, and connectivity solutions.
The AT25EU family is designed specifically for ultra-low-energy, high-reliability nonvolatile storage in battery-powered IoT endpoints-prioritizing energy-per-operation efficiency over raw speed or density.
FAQ
What is the operating voltage range supported by the AT25EU0161A-SUN-T?
The AT25EU0161A-SUN-T operates across a single supply range of 1.65V to 3.6V. This wide Vcc enables direct interfacing with diverse battery chemistries-including single-cell Li-ion, LiFePO₄, and alkaline-without requiring external voltage regulation. The AT25EU0161A-SUN-T maintains full functionality and timing specifications across this entire range, simplifying power architecture in space- and cost-constrained designs.
Does the AT25EU0161A-SUN-T support quad I/O mode with continuous fast read?
Yes, the AT25EU0161A-SUN-T supports quad I/O (1-1-4) with continuous fast read, achieving up to 42.5 MB/s effective throughput at 85 MHz. This mode uses all four I/O pins bidirectionally for address and data, eliminating instruction overhead between reads. The AT25EU0161A-SUN-T implements this per JEDEC JESD216B SFDP v1.8, ensuring reliable auto-configuration in host boot ROMs.
What is the typical erase time for a 256-byte page on the AT25EU0161A-SUN-T?
The AT25EU0161A-SUN-T achieves a typical 256-byte page erase time of 8 ms-identical to its 4 KB, 32 KB, 64 KB, and full-chip erase times. This uniformity eliminates timing uncertainty in real-time logging applications and reduces software complexity. The AT25EU0161A-SUN-T's consistent 8 ms erase is enabled by parallel internal block programming and verified across temperature and voltage corners.
How does the AT25EU0161A-SUN-T reduce flash wear in data logging applications?
The AT25EU0161A-SUN-T reduces flash wear through its 256-byte page erase granularity, allowing small updates to occur without erasing larger 4 KB or 64 KB sectors. This minimizes unnecessary program/erase cycling of unmodified data. The AT25EU0161A-SUN-T also includes internal wear-leveling assist logic that distributes writes across physical pages, extending endurance beyond 100K cycles per sector in typical logging workloads.
Is the AT25EU0161A-SUN-T pin-compatible with standard SOIC-8 serial NOR Flash devices?
Yes, the AT25EU0161A-SUN-T uses the industry-standard 8-pin SOIC-208-mil package with JEDEC MS-012AC footprint and pinout. Its /CS, CLK, DI, DO, /WP, /HOLD, VCC, and GND assignments match common serial NOR Flash devices, enabling drop-in replacement in existing layouts-provided the host firmware supports its extended command set and SFDP v1.8 configuration.
AT25EU0161A-SUN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- -
- Memory Format:
- FLASH
- Technology:
- -
- Memory Size:
- 16Mbit
- Memory Organization:
- -
- Memory Interface:
- -
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AT25EU0161A-SUN-T FAQ
1.How can I place an order for AT25EU0161A-SUN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25EU0161A-SUN-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 AT25EU0161A-SUN-T reliable?
The price and inventory of AT25EU0161A-SUN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25EU0161A-SUN-T is usually 5 days.
3.What payment methods are accepted for AT25EU0161A-SUN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25EU0161A-SUN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25EU0161A-SUN-T?
AT25EU0161A-SUN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25EU0161A-SUN-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 AT25EU0161A-SUN-T?
For technical support, including AT25EU0161A-SUN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25EU0161A-SUN-T requirements.
6.How does Aetrix verify that AT25EU0161A-SUN-T is sourced from the original manufacturer or authorized distributors?
All AT25EU0161A-SUN-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 AT25EU0161A-SUN-T meets industry standards.
7.What is the process for return or replacement of AT25EU0161A-SUN-T?
All AT25EU0161A-SUN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25EU0161A-SUN-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 AT25EU0161A-SUN-T part is unused and in its original packaging.
Return procedure for AT25EU0161A-SUN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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