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Renesas AT25DN011-DWF
- Part No.:
- AT25DN011-DWF
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
AT25DN011-DWF.pdf
- Description:
- 1 MBIT, WIDE VCC (1.7V TO 3.6V),
- Quantity:
- Payment:
- Shipping:
Inventory:3,237
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Product details
Overview
AT25DN011-DWF from Renesas Electronics is a 1-Mbit SPI serial flash memory IC supporting dual-output read, 104 MHz max clock frequency, 6 ns clock-to-output delay, and flexible erase architecture (256-byte page / 4-kByte & 32-kByte blocks). It operates from 2.3 V to 3.6 V and is used for code shadowing and embedded data storage in resource-constrained microcontroller systems.
For engineers reviewing the AT25DN011-DWF datasheet, AT25DN011-DWF pinout, AT25DN011-DWF application, or AT25DN011-DWF equivalent, key selection considerations include dual-read throughput, ultra-deep power-down current (350 nA), OTP security register support, industrial temperature range compliance, and SOIC-8 package compatibility with legacy PCB layouts.
Technical Context
The AT25DN011-DWF implements an SPI interface compliant with Modes 0 and 3, using rising-edge input latching and falling-edge output clocking. Its dual-output read mode repurposes the SI pin as I/O0 alongside SO (I/O1) to deliver two bits per SCK cycle at up to 50 MHz.
It features hardware write protection via the WP pin, HOLD pin for communication pause without deselection, and a dedicated 128-byte one-time programmable (OTP) security register for device serialization or ESN storage - all managed through discrete opcodes including 9Bh (program OTP) and 77h (read OTP).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 1 Mbit (131,072 bytes), sufficient for boot code + firmware + configuration data in compact MCU designs |
| Supply voltage | 2.3 V – 3.6 V single supply; eliminates need for charge pumps or auxiliary rails during program/erase |
| Max clock frequency | 104 MHz for standard read/program/erase; enables high-speed code execution from flash |
| Read latency | 6 ns clock-to-output (tV); supports tight timing margins in real-time embedded applications |
| Erase granularity | 256-byte page, 4-kByte block, 32-kByte block, and full-chip erase; minimizes wasted space in mixed code/data layouts |
| Power-down current | 350 nA ultra-deep power-down (typical); extends battery life in always-on IoT edge nodes |
| Endurance & retention | 100,000 program/erase cycles and 20-year data retention; suitable for field-upgradable firmware |
Pinout & Package
AT25DN011-DWF is packaged in an industry-standard 8-lead SOIC (150-mil) with gull-wing leads, compatible with automated assembly and legacy footprint designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must transition high→low to initiate command and low→high to terminate operation |
| SCK | Serial Clock | Input clock controlling data transfer timing; rising edge latches input, falling edge clocks output |
| SI (I/O0) | Serial Input / Dual-Read Output | Primary data-in pin; becomes output (I/O0) during dual-output read to double throughput |
| SO (I/O1) | Serial Output / Dual-Read Output | Primary data-out pin; remains active output (I/O1) during dual-output read alongside SI |
| WP | Write Protect | Hardware lock control; low state enables sector protection independent of software commands |
| HOLD | Communication Pause | Active-low hold signal; suspends SPI transfer without resetting internal state or aborting ongoing erase/program |
| VCC | Power Supply | 2.3–3.6 V main supply; powers logic, memory array, and I/O buffers |
| GND | Ground Reference | System ground return path; required for stable operation and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Dual-output read mode | Uses SI and SO pins simultaneously to output two bits per SCK cycle, doubling effective read bandwidth vs. standard SPI |
| Flexible erase architecture | Supports 256-byte page erase for fine-grained data updates and 4/32-kByte block erase for efficient code region management |
| 128-byte OTP security register | Immutable storage for unique device identifiers, cryptographic keys, or calibration data - programmed once and locked permanently |
| Ultra-deep power-down | 350 nA typical current draw enables multi-year battery operation in maintenance-free sensor nodes |
| Hardware write protection | WP pin provides physical-level sector locking that persists across power cycles and overrides software commands |
Applications
| Wireless Sensor Node Firmware Storage | Industrial PLC Boot Memory |
|---|---|
Use Scenario: Storing firmware and OTA update images in battery-powered LoRaWAN or BLE sensors operating for >5 years on coin cells. IC Role / Device Role / Timing Role: Non-volatile code storage with fast read access and ultra-low standby current; dual-output read accelerates firmware validation pre-execution. Use Value: 350 nA ultra-deep power-down current extends battery life; 256-byte page erase enables atomic firmware patching without erasing full application image. | Use Scenario: Holding bootloader and safety-critical control logic in DIN-rail mounted programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Primary boot memory mapped to MCU address space; industrial temperature rating (-40°C to +85°C) ensures reliability in uncontrolled cabinet environments. Use Value: Hardware WP pin prevents accidental overwrite during field servicing; 100,000-cycle endurance supports decades of firmware revisions. |
| Medical Wearable Configuration Storage | Automotive Infotainment UI Asset Cache |
Use Scenario: Storing calibrated sensor offsets, user preferences, and regulatory compliance logs in FDA-classified wearable health monitors. IC Role / Device Role / Timing Role: Secure, persistent data storage with OTP register for device-specific cryptographic keys and ESN binding. Use Value: 128-byte OTP register provides tamper-resistant identity anchoring; 20-year data retention meets medical device long-term archival requirements. | Use Scenario: Caching graphical assets (icons, fonts, animations) in automotive head units to reduce load time and offload main SoC memory bandwidth. IC Role / Device Role / Timing Role: High-speed serial flash acting as secondary cache memory; dual-output read delivers 100 MB/s effective throughput at 50 MHz SCK. Use Value: 104 MHz max clock and 6 ns tV enable near-parallel read performance; 32-kByte block erase efficiently refreshes UI asset groups. |
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 W25Q10EW | Same 1-Mbit density, SOIC-8 package, and 104 MHz speed; lacks dual-output read and OTP register | Lower-cost option where dual-read throughput and secure serialization are not required | Select when cost sensitivity outweighs need for enhanced read bandwidth or hardware-secured identity storage |
| Micron MT25QL01GBBB8E12-0SIT | 1-Gbit density (1000× larger), same SOIC-8 footprint; supports octal DTR mode but requires different command set and layout | Used in high-end infotainment or ADAS where large asset storage justifies redesign effort | Choose only if capacity demand exceeds 1 Mbit and system can accommodate updated driver stack and timing constraints |
Compared with W25Q10EW, AT25DN011-DWF adds dual-output read and OTP security at identical pinout and voltage; versus MT25QL01GBBB8E12-0SIT, it offers drop-in replacement capability for 1-Mbit use cases without layout or firmware changes.
Availability
AT25DN011-DWF is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial PLCs, medical wearables, and automotive infotainment systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for AT25DN011-DWF 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, infrastructure, and IoT markets.
The AT25DN011-DWF belongs to Renesas' AT25DN family of SPI flash devices engineered for code+data co-storage in space- and power-constrained embedded systems, emphasizing flexibility, security, and industrial reliability.
FAQ
What is the maximum operating frequency supported by the AT25DN011-DWF for standard read operations?
The AT25DN011-DWF supports up to 104 MHz for standard read operations using the 03h opcode. This allows high-speed code shadowing into RAM while maintaining robust timing margins. The device also supports dual-output read at up to 50 MHz (3Bh opcode), delivering doubled data throughput per clock cycle. Both modes operate within the 2.3 V–3.6 V supply range without requiring external voltage scaling.
Does the AT25DN011-DWF support hardware write protection, and how is it implemented?
Yes, the AT25DN011-DWF implements hardware write protection via the dedicated WP (Write Protect) pin. When pulled low, the WP pin enables hardware-controlled locking of protected memory sectors, independent of software commands or status register settings. This feature persists across power cycles and provides physical-layer security against accidental or malicious overwrites - a critical capability for bootloader and calibration data integrity in the AT25DN011-DWF.
What erase granularities does the AT25DN011-DWF support, and why does this matter for embedded firmware design?
The AT25DN011-DWF supports four erase granularities: 256-byte page, 4-kByte block, 32-kByte block, and full-chip erase. This flexibility allows firmware architects to isolate code modules and data segments into independently erasable regions - minimizing wasted space and enabling atomic updates. For example, a 256-byte page erase permits safe patching of configuration parameters without disturbing adjacent application code, directly improving field-upgrade safety and memory utilization efficiency in the AT25DN011-DWF.
How does the dual-output read mode function on the AT25DN011-DWF, and which pins are involved?
The dual-output read mode on the AT25DN011-DWF uses both the SI (I/O0) and SO (I/O1) pins as simultaneous outputs during the 3Bh command sequence, clocking two bits per SCK falling edge. This doubles effective read bandwidth compared to standard single-output mode. Pin functionality dynamically reassigns SI from input to output only during dual-read execution - preserving SPI compatibility while delivering higher throughput. The feature is fully supported in the AT25DN011-DWF's SOIC-8 package without requiring additional routing or components.
What is the purpose and capacity of the OTP security register in the AT25DN011-DWF?
The AT25DN011-DWF includes a 128-byte One-Time Programmable (OTP) security register designed for permanent, irreversible storage of device-unique identifiers, electronic serial numbers (ESN), cryptographic keys, or calibration constants. Once programmed using the 9Bh opcode, contents cannot be altered or erased. This register provides hardware-rooted trust anchors for secure boot, anti-counterfeiting, and regulatory compliance - a differentiated capability not found in baseline SPI flash devices and integral to the AT25DN011-DWF's value proposition.
AT25DN011-DWF 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:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI - Dual I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 8µs, 1.75ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
AT25DN011-DWF FAQ
1.How can I place an order for AT25DN011-DWF through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DN011-DWF 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 AT25DN011-DWF reliable?
The price and inventory of AT25DN011-DWF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DN011-DWF is usually 5 days.
3.What payment methods are accepted for AT25DN011-DWF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DN011-DWF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DN011-DWF?
AT25DN011-DWF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DN011-DWF 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 AT25DN011-DWF?
For technical support, including AT25DN011-DWF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DN011-DWF requirements.
6.How does Aetrix verify that AT25DN011-DWF is sourced from the original manufacturer or authorized distributors?
All AT25DN011-DWF 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 AT25DN011-DWF meets industry standards.
7.What is the process for return or replacement of AT25DN011-DWF?
All AT25DN011-DWF units undergo pre-shipment inspection (PSI). If there is an issue with AT25DN011-DWF, 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 AT25DN011-DWF part is unused and in its original packaging.
Return procedure for AT25DN011-DWF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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