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Renesas AT25DL161-MHN-T
- Part No.:
- AT25DL161-MHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UDFN Exposed Pad
- Datasheet:
-
AT25DL161-MHN-T.pdf
- Description:
- IC FLASH 16MBIT SPI 100MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,228
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Product details
Overview
AT25DL161-MHN-T from Renesas Electronics is a 16-Mbit serial Flash memory IC designed for code shadowing and secure 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 32 × 64-kB uniform sectors, and includes hardware write protection via WP pin.
For engineers reviewing the AT25DL161-MHN-T datasheet, AT25DL161-MHN-T pinout, AT25DL161-MHN-T application, or AT25DL161-MHN-T equivalent, this page delivers verified timing specs (5 ns tV), erase granularity (4/32/64 kB), OTP security register, dual-I/O read/write capability, and industrial temperature support (–40 °C to +105 °C).
Technical Context
The AT25DL161-MHN-T implements a dual-I/O interface enabling simultaneous 2-bit data transfer on SI/SO during Dual-Output Read and Dual-Input Program operations, doubling effective throughput versus standard SPI. Its flexible erase architecture supports four granularities-4-kB, 32-kB, 64-kB blocks, and full-chip-optimized for mixed code+data firmware layouts.
Protection is implemented at three levels: software-controlled sector protect/unprotect, hardware-enforced locking via WP pin, and permanent sector lockdown with freeze option. The integrated 128-byte OTP register (64 B factory preprogrammed, 64 B user-programmable) enables device serialization and key storage without external security elements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 16 Mbit (2 MB) organized as 32 sectors × 64 kB; enables compact firmware storage with minimal footprint. |
| Supply voltage | 1.65 V – 1.95 V; compatible with 1.8 V core logic, eliminates need for level shifters or auxiliary supplies. |
| Max clock frequency | 100 MHz (RapidS™ mode); achieves 200 MB/s effective read bandwidth using dual-output operation. |
| Read latency | 5 ns clock-to-output (tV); ensures deterministic timing for real-time boot code execution. |
| Erase granularity | Uniform 4-kB, 32-kB, 64-kB blocks + full-chip; allows fine-grained updates without disturbing adjacent firmware modules. |
| Endurance & retention | 100,000 cycles (–40 °C to +85 °C), 20,000 cycles (–40 °C to +105 °C); 20-year data retention supports long-life industrial deployments. |
| Power consumption | 10 mA active read current (20 MHz), 8 µA deep power-down; suitable for battery-backed or energy-constrained edge nodes. |
Pinout & Package
AT25DL161-MHN-T is packaged in an 8-pad Ultra-thin DFN (5 × 6 × 0.6 mm), RoHS-compliant, halide-free, and Pb-free per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; initiates command sequence on high-to-low transition and terminates on low-to-high; required before any SPI transaction. |
| SCK | Serial Clock | Master-generated clock; latches input data on rising edge, clocks output data on falling edge; defines timing for all SPI modes. |
| SI (SIO) | Serial Input / Dual-Output | Primary command/address/data input; becomes second output (SIO) during Dual-Output Read, enabling 2-bit parallel read per SCK cycle. |
| SO (SOI) | Serial Output / Dual-Input | Primary data output; becomes second input (SOI) during Dual-Input Program, enabling 2-bit parallel write per SCK cycle. |
| WP | Write Protect | Hardware lock control; low-active signal freezes sector protection state; internally pulled high, can be left floating if unused. |
| HOLD | Communication Pause | Temporarily suspends SPI I/O without deselecting device or interrupting internal program/erase; requires CS asserted and SCK low to activate. |
| VCC | Power Supply | 1.65–1.95 V supply input; powers all internal logic and Flash array; no separate VPP required for programming/erasing. |
| GND | Ground Reference | System ground return path; must be connected directly to PCB ground plane for stable operation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read/Write | Enables 2-bit parallel data transfer per clock edge, doubling effective throughput over standard SPI without increasing pin count. |
| Flexible Erase Architecture | Supports 4-kB, 32-kB, 64-kB block erase and full-chip erase - minimizes wasted space in mixed code/data partitions. |
| Hardware + Software Protection | Combines WP-pin locking, individual sector protect/unprotect commands, and Global Protect/Unprotect for manufacturing efficiency. |
| Permanent Sector Lockdown | Allows any combination of 64-kB sectors to be frozen as read-only, preventing runtime or field tampering of critical firmware or keys. |
| 128-byte OTP Security Register | 64 bytes factory-programmed (e.g., unique ID), 64 bytes user-programmable - supports ESN, cryptographic key binding, and anti-cloning. |
Applications
| Secure Firmware Update | Industrial PLC Boot Memory |
|---|---|
Use Scenario: Field-deployed medical device requires authenticated, incremental firmware patches without exposing full memory to overwrite risk. IC Role / Device Role / Timing Role: AT25DL161-MHN-T stores boot loader and application code in isolated, individually protected 64-kB sectors; WP pin locks critical bootloader region during update. Use Value: Enables safe subroutine-level patching while preserving integrity of boot code and security keys stored in permanently locked sectors. | Use Scenario: Programmable Logic Controller boots from Flash and logs sensor data in same memory under extended temperature conditions. IC Role / Device Role / Timing Role: AT25DL161-MHN-T serves as unified code+data storage with 4-kB erase blocks for frequent data logging and 64-kB blocks for infrequent firmware updates. Use Value: Eliminates need for separate EEPROM; 20,000-cycle endurance at +105 °C ensures reliability in enclosed control cabinets. |
| IoT Edge Node Configuration Storage | Automotive Infotainment Boot ROM |
Use Scenario: Battery-powered smart sensor node stores calibration parameters, network credentials, and firmware version in nonvolatile memory. IC Role / Device Role / Timing Role: AT25DL161-MHN-T uses OTP register to store device-specific keys and 64-kB sectors for encrypted configuration blobs. Use Value: 8 µA deep power-down current extends battery life; sector lockdown prevents credential extraction via physical attack. | Use Scenario: Head unit performs secure boot by verifying signed firmware images stored in Flash before loading into RAM. IC Role / Device Role / Timing Role: AT25DL161-MHN-T provides fast, deterministic read access (5 ns tV) to boot code; RapidS™ mode accelerates image verification. Use Value: 100 MHz RapidS™ read speed reduces boot time; industrial temp rating meets AEC-Q100 Grade 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1633FZUI-10G | 16 Mbit, 1.65–1.95 V, supports DTR mode up to 133 MHz; lacks OTP register and sector lockdown freeze. | Higher max frequency but no permanent read-only sector capability; less suitable for security-critical boot storage. | Select when raw speed > security enforcement; verify absence of lockdown does not compromise system certification. |
| S25FL132K0XMFI010 | 16 Mbit, 2.7–3.6 V supply only; supports Quad SPI and XIP; includes 64-byte OTP but no freeze option. | Requires 3.3 V rail; incompatible with 1.8 V systems; better for execute-in-place but not drop-in replacement. | Choose only if migrating to higher-voltage platform; not electrically compatible with AT25DL161-MHN-T's 1.8 V domain. |
Compared with MX25L1633FZUI-10G and S25FL132K0XMFI010, the AT25DL161-MHN-T uniquely combines 1.8 V operation, permanent sector lockdown, and 128-byte OTP in a single package - making it optimal for safety- or security-certified embedded boot applications where voltage compatibility and immutable code regions are mandatory.
Availability
AT25DL161-MHN-T is available at Aetrix Electronics and suitable for industrial control systems, automotive infotainment boot loaders, and secure IoT edge node firmware storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AT25DL161-MHN-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 is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT markets.
The AT25DL161-MHN-T belongs to Renesas' serial Flash memory product line, engineered specifically for reliable, low-voltage code and data storage in resource-constrained embedded systems demanding security, endurance, and industrial-grade thermal performance.
FAQ
What is the operating voltage range of the AT25DL161-MHN-T?
The AT25DL161-MHN-T operates from 1.65 V to 1.95 V, making it fully compatible with 1.8 V logic systems. This single-supply design eliminates the need for external voltage translators or auxiliary programming voltages - all read, program, and erase functions execute within this range. The AT25DL161-MHN-T maintains full specification compliance across its entire voltage window, including 100 MHz RapidS™ operation and 5 ns tV timing at 1.95 V.
Does the AT25DL161-MHN-T support dual-I/O read and write operations?
Yes, the AT25DL161-MHN-T supports both Dual-Output Read and Dual-Input Program operations. During Dual-Output Read, data appears simultaneously on SO and SI pins (as SIO), delivering two bits per SCK falling edge. During Dual-Input Program, data is latched on both SI and SO (as SOI) on each SCK rising edge. These modes double effective throughput versus standard SPI and are enabled via specific opcodes documented in the AT25DL161-MHN-T datasheet.
How many sectors does the AT25DL161-MHN-T have, and what are their sizes?
The AT25DL161-MHN-T contains 32 uniform sectors, each 64 kB in size, totaling 2 MB (16 Mbit). Its erase architecture also supports finer granularities: 4-kB and 32-kB blocks, plus full-chip erase. This multi-level flexibility allows optimized memory usage - for example, storing frequently updated calibration data in 4-kB blocks while reserving 64-kB sectors for firmware modules that require atomic updates. The AT25DL161-MHN-T's sector map is fixed and physically implemented in silicon.
What security features does the AT25DL161-MHN-T provide beyond basic write protection?
Beyond standard software sector protect and hardware WP-pin locking, the AT25DL161-MHN-T offers permanent sector lockdown with freeze capability - allowing any combination of 64-kB sectors to become irreversibly read-only. It also integrates a 128-byte One-Time Programmable (OTP) security register: 64 bytes factory-programmed (e.g., unique ID) and 64 bytes user-programmable for keys or certificates. These features are enforced at the silicon level and do not rely on external controllers. The AT25DL161-MHN-T implements them without performance penalty during normal read access.
Is the AT25DL161-MHN-T qualified for automotive or extended temperature applications?
Yes, the AT25DL161-MHN-T is specified for the full industrial temperature range of –40 °C to +105 °C, with validated endurance of 20,000 program/erase cycles and 20-year data retention at the upper limit. While not AEC-Q200 certified out-of-box, its electrical and thermal specifications meet common automotive infotainment and body-control module requirements. The AT25DL161-MHN-T's 8-pad UDFN package (5 × 6 × 0.6 mm) supports automated optical inspection and reflow profiles typical in automotive PCB assembly.
AT25DL161-MHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 256 Bytes x 8192 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)
AT25DL161-MHN-T FAQ
1.How can I place an order for AT25DL161-MHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DL161-MHN-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 AT25DL161-MHN-T reliable?
The price and inventory of AT25DL161-MHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DL161-MHN-T is usually 5 days.
3.What payment methods are accepted for AT25DL161-MHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DL161-MHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DL161-MHN-T?
AT25DL161-MHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DL161-MHN-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 AT25DL161-MHN-T?
For technical support, including AT25DL161-MHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DL161-MHN-T requirements.
6.How does Aetrix verify that AT25DL161-MHN-T is sourced from the original manufacturer or authorized distributors?
All AT25DL161-MHN-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 AT25DL161-MHN-T meets industry standards.
7.What is the process for return or replacement of AT25DL161-MHN-T?
All AT25DL161-MHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25DL161-MHN-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 AT25DL161-MHN-T part is unused and in its original packaging.
Return procedure for AT25DL161-MHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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