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Renesas AT25EU0161A-MAUN-T
- Part No.:
- AT25EU0161A-MAUN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- -
- Datasheet:
-
AT25EU0161A-MAUN-T.pdf
- Description:
- IC FLASH 16MBIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,076
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Product details
Overview
AT25EU0161A-MAUN-T from Renesas is a 16 Mbit ultra-low-energy serial NOR Flash memory IC with quad I/O interface, 85 MHz operation, 256-byte page erase, and 100 nA deep power-down mode-designed for battery-powered event/data logging in wear-sensitive embedded systems.
For engineers reviewing the AT25EU0161A-MAUN-T datasheet, AT25EU0161A-MAUN-T pinout, AT25EU0161A-MAUN-T application, or AT25EU0161A-MAUN-T equivalent, key selection criteria include energy-per-erase efficiency, 1.65–3.6 V wide Vcc compatibility, JEDEC SFDP v1.8 compliance, and quad I/O fast read support for low-CPU-overhead firmware updates.
Technical Context
The AT25EU0161A-MAUN-T implements a serial peripheral interface supporting single/dual/quad I/O modes-including continuous fast read in (1-1-4) configuration-and uses JEDEC-standard command sets with SFDP v1.8 for runtime parameter discovery. It integrates OTP registers for security-critical configuration storage.
Its architecture enables uniform 8 ms typical erase times across all block sizes (256 B page to full chip), eliminating variable latency penalties common in legacy NOR Flash. The 100 nA deep power-down state is entered via standard instruction without external circuitry, reducing system-level power management complexity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 16 Mbit (2 MB) - supports full firmware images or extended data logs in compact footprint |
| Operating Voltage | 1.65 V to 3.6 V - eliminates need for dedicated voltage regulators in multi-chemistry battery systems |
| Max Clock Frequency | 85 MHz - enables high-throughput code execution directly from flash (XIP) with minimal wait states |
| Page Erase Time | 8 ms typical (256 B) - reduces energy per update by >60× vs. conventional NOR Flash |
| Deep Power-Down Current | 100 nA - extends shelf life and standby duration in always-on sensor nodes |
| Interface Modes | Single (1-1-1), Dual Output (1-1-2), Quad Output/I/O (1-1-4) - scalable bandwidth for cost/performance trade-offs |
| SFDP Version | v1.8 compliant - enables automatic driver initialization and runtime configuration on host MCU |
Pinout & Package
AT25EU0161A-MAUN-T is housed in an 8-pin USON (3 mm × 4 mm) package with wettable flank leads, optimized for automated optical inspection and high-reliability solder joints in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO / IO0 | Serial Data Output / I/O 0 | Primary bidirectional data line for single/dual/quad I/O operations; supports continuous fast read |
| SI / IO1 | Serial Data Input / I/O 1 | Input-only in single mode; becomes bidirectional I/O1 in dual/quad modes for expanded throughput |
| WP / IO2 | Write Protect / I/O 2 | Hardware write protection when held low; functions as I/O2 in quad I/O mode |
| HOLD / IO3 | Hold Input / I/O 3 | Suspends ongoing serial transfer; doubles as I/O3 in quad I/O mode |
| CS# | Chip Select | Active-low enable signal; initiates command sequence and controls device isolation on shared bus |
| SCK | Serial Clock | Master-generated clock synchronizing all data transfers; supports up to 85 MHz frequency |
| VCC | Power Supply | Single supply input covering 1.65–3.6 V range; powers core logic and I/O buffers |
| GND | Ground | Reference return path for all internal circuits and I/O signals |
Key Features
| Feature | Design Value |
|---|---|
| 256 Byte Page Erase | Minimizes flash wear and CPU intervention during frequent small-data updates (e.g., sensor timestamping) |
| Uniform 8 ms Erase Times | Eliminates worst-case latency uncertainty across all erase granularities-critical for deterministic real-time logging |
| 100 nA Deep Power-Down | Removes need for external load switches in battery-backed IoT endpoints, simplifying BOM and layout |
| Wide 1.65–3.6 V Vcc Range | Supports direct connection to Li-ion, Li-SOCl₂, and alkaline batteries without intermediate regulation |
| JEDEC SFDP v1.8 Compliance | Enables plug-and-play integration with modern MCU bootloaders and flash abstraction layers (e.g., LittleFS, FatFS) |
Applications
| Smart Meter Data Logging | Wearable Health Sensor Storage |
|---|---|
Use Scenario: Storing time-stamped utility consumption metrics every 15 seconds over 10-year field life. IC Role / Device Role / Timing Role: Nonvolatile event logger with guaranteed endurance under 100k+ page-erase cycles. Use Value: 256-byte page erase reduces cumulative wear by >70% vs. 4 KB sector erase, extending flash lifetime beyond product warranty period. | Use Scenario: Capturing ECG waveform snippets triggered by arrhythmia detection in coin-cell-powered patches. IC Role / Device Role / Timing Role: Low-energy buffer storing transient analog data prior to BLE transmission. Use Value: 100 nA deep power-down preserves battery charge between 5-minute sensing intervals, enabling >12-month operation on CR2032. |
| Industrial Predictive Maintenance Node | Asset Tracking Beacon Firmware |
Use Scenario: Recording vibration FFT coefficients and temperature trends from MEMS accelerometers in remote machinery. IC Role / Device Role / Timing Role: High-reliability data sink supporting concurrent read-while-write during edge inference cycles. Use Value: 85 MHz quad I/O interface delivers 40 MB/s effective bandwidth-sufficient to offload 100+ kB of diagnostic data before next sampling window. | Use Scenario: Hosting updatable BLE beacon payload and OTA firmware patch storage in GPS-tracked shipping containers. IC Role / Device Role / Timing Role: Secure, field-upgradable code and configuration store with OTP-protected keys. Use Value: SFDP v1.8 auto-discovery allows bootloader to adapt to new firmware layouts without recompilation-reducing deployment risk. |
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, 133 MHz max, 2.7–3.6 V only, no 256 B page erase, 1 μA deep power-down | Lacks sub-sector erase granularity and ultra-low sleep current; requires external regulator for 1.8 V systems | Preferred where peak read speed outweighs energy-per-operation efficiency |
| Micron MT25QL128ABA8ESF-0SIT | 128 Mbit, 133 MHz, 2.7–3.6 V, 4 KB sector erase minimum, 2 μA deep power-down | Higher density but coarser erase granularity and 20× higher sleep current limit system battery life | Selected when large firmware images require single-chip storage, not ultra-low-energy logging |
Compared with W25Q16JVSNIQ and MT25QL128ABA8ESF-0SIT, the AT25EU0161A-MAUN-T uniquely delivers 100 nA deep power-down and uniform 8 ms erase across all block sizes-making it the only option that simultaneously satisfies multi-year battery life and deterministic small-data update requirements.
Availability
AT25EU0161A-MAUN-T is available at Aetrix Electronics and suitable for smart meter data logging, wearable health sensor storage, and industrial predictive maintenance nodes requiring stable component supply across long-lifecycle deployments.
Supply support for AT25EU0161A-MAUN-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 was engineered specifically for ultra-low-energy, high-endurance code and data storage in battery-constrained IoT edge devices-prioritizing joules-per-operation over raw MHz or density.
FAQ
What is the maximum clock frequency supported by the AT25EU0161A-MAUN-T?
The AT25EU0161A-MAUN-T supports up to 85 MHz in quad I/O mode with continuous fast read enabled. This frequency applies across its full 1.65–3.6 V operating range and is validated for reliable timing margins in both commercial and extended temperature grades. The AT25EU0161A-MAUN-T maintains this speed without requiring voltage scaling or derating.
Does the AT25EU0161A-MAUN-T support true 256-byte erase granularity?
Yes, the AT25EU0161A-MAUN-T implements hardware-supported 256-byte page erase as a distinct command, verified in the official datasheet (R16DS0269EU0000). Unlike emulated page erase, this feature guarantees consistent 8 ms typical erase time and eliminates wear amplification associated with larger sector erases. The AT25EU0161A-MAUN-T does not require software workarounds to achieve this granularity.
What package type is used for the AT25EU0161A-MAUN-T?
The AT25EU0161A-MAUN-T uses an 8-pin USON package measuring 3 mm × 4 mm with wettable flank leads (MAUN suffix). This package supports automated optical inspection and provides thermal and mechanical reliability advantages over SOIC in portable and high-vibration environments. The AT25EU0161A-MAUN-T's pinout matches industry-standard serial NOR Flash footprints for drop-in layout compatibility.
How does the AT25EU0161A-MAUN-T achieve 100 nA deep power-down current?
The AT25EU0161A-MAUN-T achieves 100 nA deep power-down by internally disabling all charge pumps, oscillators, and I/O buffers while retaining SRAM-based register state. Entry is triggered by a standard instruction (0xB9) with CS# held active; no external components or sequencing are required. The AT25EU0161A-MAUN-T exits this state in ≤100 μs upon CS# deactivation.
Is the AT25EU0161A-MAUN-T compatible with JEDEC SFDP v1.8?
Yes, the AT25EU0161A-MAUN-T fully complies with JEDEC Standard Serial Flash Discoverable Parameters (SFDP) v1.8, enabling automatic detection of density, timing parameters, erase capabilities, and command sets by host bootloaders. This compliance is confirmed in the Renesas datasheet R16DS0269EU0000 and eliminates manual configuration in RTOS and bare-metal firmware. The AT25EU0161A-MAUN-T exposes all mandatory and optional SFDP tables for robust interoperability.
AT25EU0161A-MAUN-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-MAUN-T FAQ
1.How can I place an order for AT25EU0161A-MAUN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25EU0161A-MAUN-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-MAUN-T reliable?
The price and inventory of AT25EU0161A-MAUN-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-MAUN-T is usually 5 days.
3.What payment methods are accepted for AT25EU0161A-MAUN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25EU0161A-MAUN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25EU0161A-MAUN-T?
AT25EU0161A-MAUN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25EU0161A-MAUN-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-MAUN-T?
For technical support, including AT25EU0161A-MAUN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25EU0161A-MAUN-T requirements.
6.How does Aetrix verify that AT25EU0161A-MAUN-T is sourced from the original manufacturer or authorized distributors?
All AT25EU0161A-MAUN-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-MAUN-T meets industry standards.
7.What is the process for return or replacement of AT25EU0161A-MAUN-T?
All AT25EU0161A-MAUN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25EU0161A-MAUN-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-MAUN-T part is unused and in its original packaging.
Return procedure for AT25EU0161A-MAUN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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