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Renesas AT25DL081-MHN-Y
- Part No.:
- AT25DL081-MHN-Y
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AT25DL081-MHN-Y.pdf
- Description:
- IC FLASH 8MBIT SPI 100MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,880
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Product details
Overview
AT25DL081-MHN-Y from Renesas Electronics is an 8-Mbit serial Flash memory IC designed for code shadowing and data storage in 1.8 V embedded systems. It operates from 1.65 V to 1.95 V, supports SPI Modes 0/3 and RapidS™ up to 100 MHz, features dual-I/O read/write capability, and delivers 5 ns clock-to-output time. It is used in firmware update-capable IoT edge nodes requiring secure, sector-level programmable nonvolatile storage.
For engineers reviewing the AT25DL081-MHN-Y datasheet, AT25DL081-MHN-Y pinout, AT25DL081-MHN-Y application, or AT25DL081-MHN-Y equivalent, this page provides verified technical context, real-world use cases, pin-level design meaning, and validated alternative options for industrial-grade Flash memory selection.
Technical Context
The AT25DL081-MHN-Y implements a flexible erase architecture with uniform 4-kB, 32-kB, and 64-kB block erase granularity plus full-chip erase - enabling efficient code patching and mixed-code/data partitioning. Its dual-input program and dual-output read modes double effective throughput versus standard SPI, while RapidS™ operation sustains 100 MHz clock rates with 5 ns tV.
Hardware write protection is enforced via the WP pin, and sector lockdown with permanent freeze option allows irreversible read-only configuration of any combination of sixteen 64-kB sectors. A 128-byte OTP security register (64 bytes factory preprogrammed, 64 bytes user-programmable) supports device serialization and key storage without external security ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 8 Mbit (1 MByte), organized as 16 × 64 kB sectors - enables modular firmware layout with isolated code/data regions. |
| Supply voltage | 1.65 V – 1.95 V - compatible with 1.8 V core logic; eliminates need for charge pumps or auxiliary voltages. |
| Max clock frequency | 100 MHz (RapidS™), 85 MHz (standard SPI) - supports high-speed boot loading and OTA firmware transfers. |
| Read latency | 5 ns clock-to-output (tV) - minimizes instruction fetch delay during XIP (execute-in-place) operation. |
| Erase performance | 50 ms typical 4-kB block erase; 550 ms typical 64-kB block erase - balances speed and endurance for field updates. |
| Endurance & retention | 100,000 program/erase cycles; 20-year data retention - meets industrial lifecycle requirements for unattended devices. |
| Power consumption | 10 mA active read current (20 MHz); 8 µA deep power-down - suitable for battery-backed or energy-harvested systems. |
Pinout & Package
AT25DL081-MHN-Y is packaged in an 8-pad Ultra-thin DFN (5 × 6 × 0.6 mm), RoHS-compliant, halide-free package with wettable flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; initiates command sequence on high-to-low transition and terminates on low-to-high - required for all operations including suspend/resume. |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI/SIO input, falling edge clocks SO/SOI output - timing-critical for RapidS™ and dual-I/O modes. |
| SI (SIO) | Serial Input / Dual-I/O Data In | Primary command/address/data input; becomes SIO (second output) during Dual-Output Read - enables 2-bit-per-cycle reads at full clock rate. |
| SO (SOI) | Serial Output / Dual-I/O Data Out | Primary data output; becomes SOI (second input) during Dual-Input Program - enables 2-bit-per-cycle programming without protocol overhead. |
| WP | Write Protect | Hardware lock control; low state enables hardware-based sector protection freeze - prevents accidental writes even if software fails. |
| HOLD | Communication Hold | Pauses ongoing SPI transfer without deselecting device or resetting internal state - preserves partial command execution across host interrupts. |
| VCC | Power Supply | 1.65–1.95 V supply; powers all logic and Flash array - must be stable during erase/program; no separate VPP required. |
| GND | Ground Reference | System ground return path; critical for noise immunity in high-frequency SPI signaling and fast switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read/Write | Enables 2-bit-per-clock-cycle data transfer, doubling effective bandwidth over standard SPI - reduces firmware update time by ~45% at same clock rate. |
| RapidS™ Interface | Supports 100 MHz operation with 5 ns tV - achieves sub-100 ns instruction fetch latency for XIP execution in resource-constrained MCUs. |
| Flexible Erase Architecture | Uniform 4-kB, 32-kB, and 64-kB block erase plus full-chip erase - allows precise firmware patching without erasing entire application image. |
| Sector Lockdown with Freeze | Any combination of 16 × 64 kB sectors can be permanently locked as read-only - satisfies secure boot and cryptographic key storage requirements. |
| 128-byte OTP Security Register | 64 bytes factory-programmed (e.g., unique ID), 64 bytes user-programmable - enables tamper-resistant device serialization and ESN management. |
| Global Protect/Unprotect | Single-command mass protection/unprotection of all sectors - streamlines factory programming and reduces test time during production. |
Applications
| Firmware Update Node | Secure Boot Loader |
|---|---|
|
Use Scenario: Remote field-deployed sensor node receives encrypted firmware updates over LoRaWAN and applies delta patches. IC Role / Device Role / Timing Role: Nonvolatile storage for boot image, update staging area, and rollback copy - accessed via RapidS™ for fast verification and write. Use Value: 4-kB block erase enables patch application without full reflash; sector lockdown protects bootloader region from corruption during OTA. |
Use Scenario: Industrial PLC validates signed firmware before execution using embedded RSA-2048 verification. IC Role / Device Role / Timing Role: Stores immutable public key, bootloader hash, and root-of-trust certificate in frozen 64-kB sector - accessed only at power-on reset. Use Value: Permanent sector lockdown prevents runtime tampering; OTP register holds device-specific private key seed for secure key derivation. |
| Edge AI Inference Module | Medical Diagnostic Device |
|
Use Scenario: Portable ultrasound unit loads neural network weights and calibration parameters from Flash into SRAM before imaging session. IC Role / Device Role / Timing Role: Dual-Output Read delivers 200 MB/s effective bandwidth to feed CNN accelerator - minimizing boot latency and idle power. Use Value: 100 MHz RapidS™ + 5 ns tV reduces weight load time by >35% vs. standard SPI Flash; 20-year retention ensures calibration stability over device lifetime. |
Use Scenario: FDA-cleared patient monitor stores regulatory-compliant firmware revisions, audit logs, and calibration history. IC Role / Device Role / Timing Role: Sector-protected storage for audit trail (write-once), firmware (locked), and runtime config (user-modifiable) - managed via Global Protect/Unprotect. Use Value: Individual sector protection isolates critical firmware from log writes; 100K-cycle endurance supports 10+ years of daily log entries. |
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 W25Q80DVSSIG | 8 Mbit, 1.65–1.95 V, SPI-only (no RapidS™ or dual-I/O), 80 MHz max, 8-pin SOIC only | Lacks dual-I/O and RapidS™ acceleration; lower peak bandwidth; no sector lockdown freeze | Choose when cost sensitivity outweighs performance/security needs and SOIC packaging is preferred. |
| Macronix MX25L8006EM1I-12G | 8 Mbit, 2.7–3.6 V supply only; supports QPI/DTR but not RapidS™; 104 MHz max; 8-pin SOIC | Requires 3.3 V system; incompatible voltage domain; no 1.8 V support or OTP security register | Choose only for legacy 3.3 V designs where voltage compatibility is confirmed and security features are secondary. |
Compared with W25Q80DVSSIG and MX25L8006EM1I-12G, the AT25DL081-MHN-Y uniquely delivers 1.8 V operation with dual-I/O throughput, hardware-frozen sector lockdown, and integrated OTP security - making it the only option meeting simultaneous requirements for ultra-low-voltage edge AI, secure boot, and field-upgradable medical firmware.
Availability
AT25DL081-MHN-Y is available at Aetrix Electronics and suitable for firmware update nodes, secure boot loaders, edge AI inference modules, and medical diagnostic devices requiring stable component supply across multi-year production cycles.
Supply support for AT25DL081-MHN-Y 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 applications.
The AT25DL081-MHN-Y belongs to Renesas' serial Flash memory product line, engineered specifically for secure, low-voltage, high-throughput code and data storage in resource-constrained embedded systems.
FAQ
What is the operating voltage range of the AT25DL081-MHN-Y?
The AT25DL081-MHN-Y operates from 1.65 V to 1.95 V, optimized for 1.8 V systems. This single-supply operation eliminates the need for charge pumps or auxiliary voltages during program or erase cycles - simplifying power design and reducing bill-of-materials cost in battery-powered or energy-harvested devices. The AT25DL081-MHN-Y maintains full functionality across this range, including RapidS™ mode and dual-I/O operation.
Does the AT25DL081-MHN-Y support execute-in-place (XIP) operation?
Yes, the AT25DL081-MHN-Y supports XIP via its 5 ns clock-to-output (tV) timing and RapidS™ 100 MHz interface, enabling low-latency instruction fetch directly from Flash. Its dual-output read mode further reduces effective instruction load time. The AT25DL081-MHN-Y is commonly used in Cortex-M7 and RISC-V SoCs where XIP reduces SRAM footprint and boot time - verified in Renesas' reference designs for industrial gateways.
How does sector lockdown work on the AT25DL081-MHN-Y?
The AT25DL081-MHN-Y allows any combination of its sixteen 64-kB sectors to be individually locked down and permanently frozen as read-only using dedicated commands (Sector Lockdown + Freeze). Once frozen, those sectors cannot be erased or programmed - even with WP pin deasserted or via software commands. This feature is used to protect bootloader code or cryptographic keys. The AT25DL081-MHN-Y implements this in hardware, ensuring irreversible protection independent of firmware integrity.
Can the AT25DL081-MHN-Y replace standard SPI Flash in existing designs?
The AT25DL081-MHN-Y is pin-compatible with industry-standard 8-pin SOIC and UDFN packages and uses standard SPI opcodes for basic read/write/erase - enabling drop-in replacement in many cases. However, full utilization of RapidS™, dual-I/O, and sector lockdown requires firmware updates. The AT25DL081-MHN-Y retains backward compatibility while adding performance and security layers not present in legacy SPI Flash.
What is the purpose of the 128-byte OTP security register in the AT25DL081-MHN-Y?
The 128-byte OTP security register in the AT25DL081-MHN-Y consists of 64 bytes factory-programmed (e.g., unique device ID or calibration data) and 64 bytes user-programmable - used for secure device serialization, electronic serial number (ESN) storage, or cryptographic key seeding. Once written, OTP bytes cannot be altered, providing tamper-resistant identity binding. The AT25DL081-MHN-Y leverages this register to eliminate external secure elements in cost-sensitive edge devices.
AT25DL081-MHN-Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 8Mbit
- Memory Organization:
- 256 Bytes x 4096 pages
- Memory Interface:
- SPI
- Clock Frequency:
- 100 MHz
- Write Cycle Time - Word, Page:
- 8µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (5x6)
AT25DL081-MHN-Y FAQ
1.How can I place an order for AT25DL081-MHN-Y through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DL081-MHN-Y 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 AT25DL081-MHN-Y reliable?
The price and inventory of AT25DL081-MHN-Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DL081-MHN-Y is usually 5 days.
3.What payment methods are accepted for AT25DL081-MHN-Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DL081-MHN-Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DL081-MHN-Y?
AT25DL081-MHN-Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DL081-MHN-Y 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 AT25DL081-MHN-Y?
For technical support, including AT25DL081-MHN-Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DL081-MHN-Y requirements.
6.How does Aetrix verify that AT25DL081-MHN-Y is sourced from the original manufacturer or authorized distributors?
All AT25DL081-MHN-Y 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 AT25DL081-MHN-Y meets industry standards.
7.What is the process for return or replacement of AT25DL081-MHN-Y?
All AT25DL081-MHN-Y units undergo pre-shipment inspection (PSI). If there is an issue with AT25DL081-MHN-Y, 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 AT25DL081-MHN-Y part is unused and in its original packaging.
Return procedure for AT25DL081-MHN-Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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