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Renesas AT25DF011-SSHN-B
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- Part No.:
- AT25DF011-SSHN-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25DF011-SSHN-B.pdf
- Description:
- IC FLASH 1MBIT SPI 104MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,569
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Product details
Overview
AT25DF011-SSHN-B from Renesas Electronics is a 1-Mbit SPI serial flash memory IC designed for code shadowing and embedded data storage in resource-constrained systems. It operates from 1.65 V to 3.6 V, supports SPI Modes 0/3, delivers 104 MHz max clock frequency, achieves 6 ns clock-to-output delay, and features dual-output read for enhanced throughput - deployed in industrial controllers and IoT edge nodes requiring reliable nonvolatile storage.
For engineers reviewing the AT25DF011-SSHN-B datasheet, AT25DF011-SSHN-B pinout, AT25DF011-SSHN-B application, or AT25DF011-SSHN-B equivalent, key selection criteria include its 256-byte page erase granularity, 128-byte OTP security register with factory-unique ID, ultra-deep power-down current (200 nA), flexible block protection via WP pin, and compatibility with 8-lead SOIC (150-mil) packaging.
Technical Context
The AT25DF011-SSHN-B implements a SPI-compatible command set with dedicated opcodes for byte/page program (02h), 4-kB/32-kB block erase (20h/52h), chip erase (60h/C7h), and dual-output read (3Bh). Its memory architecture supports three-tiered erase (page/4-kB/32-kB) enabling efficient co-location of firmware code and runtime data without cross-contamination.
Hardware-based protection uses the active-low WP pin to lock sectors, while software control leverages status register bits (SRWD, BPL) for fine-grained write protection. The integrated 128-byte OTP register includes 64 bytes factory-programmed with a unique identifier and 64 bytes user-programmable for secure device serialization or key storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8-bit) - sufficient for boot code, firmware images, and configuration data in compact embedded systems. |
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct interface with 1.8 V and 3.3 V microcontrollers without level shifting. |
| Max Clock Frequency | 104 MHz - supports high-speed read operations for latency-sensitive applications like real-time firmware loading. |
| Read Latency | 6 ns clock-to-output (tV) - minimizes wait states during instruction fetch or data streaming. |
| Erase Granularity | 256-byte page / 4-kB block / 32-kB block - allows precise updates of small data segments without disturbing adjacent firmware sections. |
| Power-Down Current | 200 nA ultra-deep power-down (typical) - extends battery life in always-on sensor nodes and wearable devices. |
| Endurance & Retention | 100,000 program/erase cycles at -40 °C to +85 °C; 20-year data retention - meets industrial lifecycle requirements. |
Pinout & Package
AT25DF011-SSHN-B is packaged in an industry-standard 8-lead SOIC (150-mil) body with gull-wing leads, compatible with automated PCB assembly and reflow soldering per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition high→low to initiate any command sequence and low→high to terminate operation. |
| SCK | Serial Clock | Master-generated clock; rising edge latches input (SI), falling edge clocks output (SO); supports up to 104 MHz. |
| SI (I/O0) | Serial Input / Dual-Output Data Line 0 | Input for commands, addresses, and data; becomes output during dual-output read (3Bh) to deliver LSB-aligned data stream. |
| SO (I/O1) | Serial Output / Dual-Output Data Line 1 | Primary output for standard reads; remains output during dual-output read to deliver MSB-aligned data stream alongside SI. |
| WP | Write Protect | Hardware lock control; low state enables sector protection override; internally pulled high for default disable. |
| HOLD | Communication Pause | Active-low pause signal; suspends ongoing SPI transfer without deselecting device or resetting internal state. |
| VCC | Power Supply | Single supply input (1.65–3.6 V); powers all logic and memory array; no auxiliary voltage required for programming. |
| GND | Ground Reference | System ground return path; must be low-impedance and decoupled near VCC pin for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Output Read Mode | Enables 2-bit-per-clock data transfer using SI and SO pins simultaneously, doubling effective read bandwidth versus standard SPI read (03h). |
| Flexible Erase Architecture | Supports 256-byte page, 4-kB block, 32-kB block, and full-chip erase - optimizes memory utilization for mixed code+data storage. |
| OTP Security Register | 128-byte one-time programmable area with 64-byte factory-unique ID and 64-byte user space - enables secure device binding and ESN storage. |
| Hardware Write Protection | WP pin provides physical lock control over protected sectors, independent of software status register settings for fail-safe security. |
| Ultra-Low Power States | 200 nA ultra-deep power-down and 5 µA deep power-down modes reduce quiescent current by >99% vs active read (4.5 mA). |
Applications
| Industrial PLC Firmware Storage | IoT Edge Sensor Node Logging |
|---|---|
Use Scenario: Storing firmware update images and runtime configuration parameters in programmable logic controllers operating in harsh environments. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast page erase (1.5 ms) and hardware write protection to prevent accidental corruption during field upgrades. Use Value: Eliminates need for external EEPROM or backup SRAM; 100,000-cycle endurance ensures 10+ years of daily firmware patching. | Use Scenario: Capturing timestamped sensor readings (temperature, humidity, motion) in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Low-power data logger using 256-byte page writes and 4-kB block erases to minimize energy per write cycle. Use Value: 200 nA ultra-deep power-down extends 2-AA battery life beyond 5 years while retaining logged data. |
| Medical Diagnostic Handheld Boot Memory | Automotive Body Control Module Configuration |
Use Scenario: Hosting boot loader and calibration tables in portable ultrasound or glucose meter devices requiring regulatory-compliant data integrity. IC Role / Device Role / Timing Role: Secure boot memory with factory-programmed unique ID (64 bytes) and user-programmable OTP for cryptographic key injection. Use Value: Meets IEC 62304 traceability requirements via immutable device serialization and tamper-resistant storage. | Use Scenario: Storing vehicle-specific configuration profiles (lighting sequences, window auto-up/down thresholds) in BCMs across production variants. IC Role / Device Role / Timing Role: Field-updatable parameter storage leveraging uniform 4-kB block erase to isolate profile sets without affecting core firmware. Use Value: Reduces BOM count by consolidating variant-specific data into single hardware platform; 20-year retention guarantees lifetime calibration validity. |
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 | 1-Mbit density, 1.65–3.6 V, 104 MHz, but lacks dual-output read mode and OTP security register. | Lower security assurance for device identity; requires external logic for equivalent protection schemes. | Select when dual-read throughput and factory-unique ID are not required; lower cost alternative with identical footprint. |
| Micron MT25QL01GBBB8E12-0SIT | 1-Gbit density (1000× larger), quad-SPI interface, 133 MHz, but incompatible pinout and higher voltage minimum (1.7 V). | Not drop-in replaceable; requires PCB redesign and firmware driver updates for QSPI protocol stack. | Choose only for future-proofing or when >1-Mbit capacity is needed; not suitable for direct substitution. |
Compared with W25Q10EW and MT25QL01GBBB8E12-0SIT, the AT25DF011-SSHN-B uniquely balances compact 1-Mbit density, dual-output read acceleration, on-chip OTP serialization, and SOIC-8 compatibility - making it optimal for cost-sensitive, space-constrained designs where security and power efficiency are prioritized over raw capacity.
Availability
AT25DF011-SSHN-B is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive body electronics, and IoT edge sensing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25DF011-SSHN-B 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 trusted microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT markets.
The AT25DF011-SSHN-B belongs to Renesas' AT25DF family of SPI flash memories engineered specifically for embedded code execution and secure data logging in power- and space-constrained systems.
FAQ
What is the maximum operating frequency supported by the AT25DF011-SSHN-B?
The AT25DF011-SSHN-B supports a maximum clock frequency of 104 MHz for read, program, and erase operations. This applies to standard read (03h), dual-output read (3Bh), page erase (81h), 4-kB block erase (20h), 32-kB block erase (52h), and chip erase (60h/C7h) commands. AC timing specifications confirm tV (clock-to-output) of 6 ns at this rate, enabling high-throughput firmware access in real-time systems.
Does the AT25DF011-SSHN-B support dual-output read mode, and how is it enabled?
Yes, the AT25DF011-SSHN-B supports dual-output read mode using opcode 3Bh. When this command is issued, both the SI (I/O0) and SO (I/O1) pins become outputs, delivering two bits per SCK falling edge. This doubles effective data throughput versus standard SPI read (03h). No configuration register setting is required - activation is command-driven and transparent to host controller timing.
What package type is used for the AT25DF011-SSHN-B, and what are its dimensions?
The AT25DF011-SSHN-B uses an 8-lead SOIC (Small Outline Integrated Circuit) package with 150-mil body width. Per JEDEC MS-012, it measures 5.0 mm × 4.0 mm × 1.75 mm (L × W × H) with 1.27 mm lead pitch. This package is compatible with standard reflow profiles and automated optical inspection in high-volume manufacturing.
How does the hardware write protection feature work on the AT25DF011-SSHN-B?
The AT25DF011-SSHN-B implements hardware write protection via the active-low WP pin. When WP is driven low, it overrides software-based protection bits (BPL, TB, BP2–BP0) to lock selected memory sectors. The WP pin is internally pulled high, so leaving it unconnected disables hardware protection. For fail-safe operation, Renesas recommends tying WP to VCC unless explicit sector locking is required.
What is the structure and purpose of the OTP security register in the AT25DF011-SSHN-B?
The AT25DF011-SSHN-B contains a 128-byte OTP (One-Time Programmable) security register: 64 bytes are factory-programmed with a unique device identifier for serialization, and 64 bytes are user-programmable for keys, certificates, or calibration data. Once written, OTP contents cannot be erased or rewritten - providing immutable device identity and secure storage for cryptographic assets.
AT25DF011-SSHN-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 8µs, 3.5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25DF011-SSHN-B FAQ
1.How can I place an order for AT25DF011-SSHN-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DF011-SSHN-B 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 AT25DF011-SSHN-B reliable?
The price and inventory of AT25DF011-SSHN-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DF011-SSHN-B is usually 5 days.
3.What payment methods are accepted for AT25DF011-SSHN-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DF011-SSHN-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DF011-SSHN-B?
AT25DF011-SSHN-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DF011-SSHN-B 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 AT25DF011-SSHN-B?
For technical support, including AT25DF011-SSHN-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DF011-SSHN-B requirements.
6.How does Aetrix verify that AT25DF011-SSHN-B is sourced from the original manufacturer or authorized distributors?
All AT25DF011-SSHN-B 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 AT25DF011-SSHN-B meets industry standards.
7.What is the process for return or replacement of AT25DF011-SSHN-B?
All AT25DF011-SSHN-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25DF011-SSHN-B, 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 AT25DF011-SSHN-B part is unused and in its original packaging.
Return procedure for AT25DF011-SSHN-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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