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Renesas AT45DQ161-SSHFHJ-T
- Part No.:
- AT45DQ161-SSHFHJ-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT45DQ161-SSHFHJ-T.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,036
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Product details
Overview
AT45DQ161-SSHFHJ-T from Renesas Electronics is a 16-Mbit serial DataFlash memory with SPI interface, Dual-I/O and Quad-I/O support, 512/528-byte configurable page size, 85 MHz max clock frequency, and ultra-low 500 nA deep power-down current. It serves as nonvolatile program/data storage in embedded controllers, firmware update modules, and voice/image recorders requiring high-speed sequential access.
For engineers reviewing the AT45DQ161-SSHFHJ-T datasheet, AT45DQ161-SSHFHJ-T pinout, AT45DQ161-SSHFHJ-T application, or AT45DQ161-SSHFHJ-T equivalent, key selection criteria include SPI mode 0/3 compatibility, buffer-to-memory page programming with suspend/resume, sector lockdown security, and industrial temperature operation with green packaging.
Technical Context
The AT45DQ161-SSHFHJ-T implements a dual-SRAM-buffer architecture (512/528 bytes each) enabling concurrent data reception and main memory reprogramming. Its RapidS™ mode supports accelerated read/write timing with tV ≤ 6 ns clock-to-output delay.
It supports four distinct erase granularities-page (512/528 B), block (4 kB), sector (128 kB), and chip (16 Mbit)-with hardware/software sector protection and OTP security register. JEDEC-standard Manufacturer and Device ID read (9Fh opcode) enables automated system identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Capacity | 16 Mbit (17,301,504 bits), organized as 4,096 pages × 512 or 528 bytes |
| Interface Speed | 85 MHz max for SPI, Dual-I/O, and Quad-I/O modes - enables >34 MB/s effective throughput in Quad-Output Read |
| Page Size | User-configurable to 512 bytes (binary-aligned) or 528 bytes (DataFlash standard); factory pre-configurable |
| Power-Down Current | 500 nA typical ultra-deep power-down - extends battery life in always-on IoT edge nodes |
| Endurance & Retention | 100,000 program/erase cycles per page; 20-year data retention at industrial temperature range |
| Security Features | 128-byte OTP Security Register (64B factory UID + 64B user-programmable); sector lockdown for permanent read-only enforcement |
| Operating Voltage | 2.3 V to 3.6 V single supply - compatible with 2.5 V and 3.3 V logic domains without level shifting |
Pinout & Package
AT45DQ161-SSHFHJ-T uses an 8-pad Ultra-thin DFN package (5 mm × 6 mm × 0.6 mm), RoHS-compliant and halide-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command decoding; must be asserted before SCK edge for valid operation |
| SCK | Serial Clock | Input clock synchronizing all SPI transfers; supports up to 85 MHz; phase/polarity configurable for Mode 0/3 |
| MOSI | Master Out Slave In | Serial data input for commands, addresses, and write data; supports single/dual/quad input modes |
| MISO | Master In Slave Out | Serial data output for reads and status registers; supports single/dual/quad output modes |
| WP | Write Protect | Hardware-enabled sector protection control; low = enable protection, high = disable (when software protection active) |
| RESET | Hardware Reset | Active-low asynchronous reset; returns device to power-on state and clears internal status flags |
| VCC | Power Supply | 2.3–3.6 V primary supply; decoupling capacitor required within 10 mm of pin per datasheet layout guidelines |
| GND | Ground | Digital ground reference; separate analog ground not required - single ground plane sufficient |
Key Features
| Feature | Design Value |
|---|---|
| Dual SRAM Buffers | Two independent 512/528-byte buffers enable true interleaved writes - receive new data while reprogramming main memory without pipeline stall |
| RapidS™ Operation | Reduces clock-to-output delay to ≤6 ns and eliminates setup/hold timing constraints on SCK edges - simplifies high-frequency PCB layout |
| Flexible Erase Granularity | Four-tier erase (page/block/sector/chip) allows precise wear leveling and firmware partitioning - avoids full-chip erases during OTA updates |
| Program/Erase Suspend | Pause ongoing erase or program to service urgent read requests - maintains real-time responsiveness in mixed-workload systems |
| OTP Security Register | 128-byte one-time programmable register with factory-assigned 64-byte UID - enables secure boot key binding and device authentication |
| Deep Power-Down Modes | Two ultra-low-power states: 3 µA Deep Power-Down and 500 nA Ultra-Deep Power-Down - ideal for energy-harvesting and battery-critical applications |
Applications
| Firmware Update Module | Voice Recorder System |
|---|---|
|
Use Scenario: Storing and applying field-upgradable firmware images in industrial PLCs with no external RAM. IC Role / Device Role / Timing Role: Nonvolatile storage and execution source for bootloader and application binaries; supports rapid page rewrites via buffer-to-memory transfer. Use Value: Enables atomic firmware updates with suspend/resume - prevents corruption during power loss mid-erase. |
Use Scenario: Capturing and storing compressed audio streams in portable medical voice loggers. IC Role / Device Role / Timing Role: High-throughput sequential write buffer for ADC-sampled audio; leverages Dual-Input Buffer Write for continuous capture. Use Value: 85 MHz Quad-I/O read supports real-time playback streaming without external DRAM buffering. |
| Secure Boot Loader | Industrial HMI Display Cache |
|
Use Scenario: Verifying cryptographic signatures of boot code prior to execution in safety-critical gateways. IC Role / Device Role / Timing Role: Trusted storage for public keys and signed firmware hashes; OTP Security Register holds immutable root-of-trust credentials. Use Value: Sector lockdown prevents tampering with boot validation logic - enforces hardware-rooted chain of trust. |
Use Scenario: Caching GUI assets (fonts, icons, bitmaps) in factory-floor HMIs with limited SDRAM bandwidth. IC Role / Device Role / Timing Role: Low-latency read cache accessed via Quad-Output Read; reduces SoC memory bus contention during screen refresh. Use Value: 6 ns tV ensures pixel data delivery meets 60 Hz display timing budgets without FIFO overhead. |
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 W25Q16JW | 16 Mbit SPI NOR Flash; no Dual/Quad-I/O; no SRAM buffers; 133 MHz max clock; no RapidS or suspend/resume | Lacks concurrent buffer operation and program/erase suspend - unsuitable for real-time streaming or atomic OTA updates | Select when cost sensitivity outweighs performance/security needs and legacy SPI-only interface suffices |
| Macronix MX25L1633F | 16 Mbit SPI NOR Flash; supports Quad-I/O but no Dual-I/O; no SRAM buffers; no RapidS; 104 MHz max clock | No buffer-based interleaving or ultra-deep power-down (min 1 µA); lacks OTP security register and sector lockdown | Choose for basic code storage where Quad-I/O speed is needed but advanced data management features are unnecessary |
Compared with W25Q16JW and MX25L1633F, the AT45DQ161-SSHFHJ-T uniquely delivers simultaneous buffer I/O, program/erase suspend, and hardware-enforced sector lockdown - making it the only option among the three for deterministic real-time firmware updates and secure boot in resource-constrained industrial devices.
Availability
AT45DQ161-SSHFHJ-T is available at Aetrix Electronics and suitable for firmware update modules, voice recorder systems, secure boot loaders, and industrial HMI display caches requiring stable component supply across extended product lifecycles.
Supply support for AT45DQ161-SSHFHJ-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, and IoT applications.
The AT45DQ161 belongs to Renesas' DataFlash family, designed specifically for high-reliability, high-speed sequential-access storage in embedded systems where endurance, security, and real-time interruptibility are critical.
FAQ
What is the default page size configuration for AT45DQ161-SSHFHJ-T?
The AT45DQ161-SSHFHJ-T is factory pre-configured to use 528-byte pages by default, aligning with the standard DataFlash page format. This setting can be changed to 512-byte pages using the Buffer and Page Size Configuration command (44h), and the configuration persists through power cycles. The device supports both sizes without hardware modification.
Does AT45DQ161-SSHFHJ-T support true Quad-I/O read and write operations?
Yes, AT45DQ161-SSHFHJ-T supports Quad-Output Read (6Bh opcode) and Quad-Input Buffer Write (38h opcode), achieving up to 85 MHz operation. It also supports Dual-Output Read (3Bh) and Dual-Input Buffer Write (BBh). Quad mode requires prior enabling via the Quad Enable command (35h) and is fully compliant with JEDEC JESD216 standards for QSPI-compatible initialization.
How does the Program/Erase Suspend feature work in AT45DQ161-SSHFHJ-T?
AT45DQ161-SSHFHJ-T allows pausing an ongoing program or erase operation using the Suspend command (75h), then servicing time-critical read requests. Resume (7Ah) restores the suspended operation from its exact point. This ensures deterministic latency for real-time systems - for example, a motor controller can read sensor calibration data from AT45DQ161-SSHFHJ-T even while updating firmware in background.
What security mechanisms does AT45DQ161-SSHFHJ-T provide beyond standard write protection?
AT45DQ161-SSHFHJ-T provides three layered security: (1) Software/hardware sector protection with individual bit control, (2) Sector Lockdown - irreversible conversion of any sector to permanent read-only, and (3) 128-byte OTP Security Register containing factory-programmed 64-byte UID and 64-byte user space. These features collectively prevent unauthorized firmware modification and enable cryptographic binding to hardware identity.
Is AT45DQ161-SSHFHJ-T qualified for industrial temperature operation?
Yes, AT45DQ161-SSHFHJ-T is specified for the full industrial temperature range (−40°C to +85°C) per its datasheet. The "-SSHFHJ-T" suffix denotes the 8-pad DFN package with industrial-grade qualification. An extended temperature option (−40°C to +105°C) is available under different ordering codes, but AT45DQ161-SSHFHJ-T itself meets standard industrial requirements.
AT45DQ161-SSHFHJ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 528 Bytes x 4096 pages
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 85 MHz
- Write Cycle Time - Word, Page:
- 8µs, 6ms
- Access Time:
- -
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT45DQ161-SSHFHJ-T FAQ
1.How can I place an order for AT45DQ161-SSHFHJ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT45DQ161-SSHFHJ-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 AT45DQ161-SSHFHJ-T reliable?
The price and inventory of AT45DQ161-SSHFHJ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT45DQ161-SSHFHJ-T is usually 5 days.
3.What payment methods are accepted for AT45DQ161-SSHFHJ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT45DQ161-SSHFHJ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT45DQ161-SSHFHJ-T?
AT45DQ161-SSHFHJ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT45DQ161-SSHFHJ-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 AT45DQ161-SSHFHJ-T?
For technical support, including AT45DQ161-SSHFHJ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT45DQ161-SSHFHJ-T requirements.
6.How does Aetrix verify that AT45DQ161-SSHFHJ-T is sourced from the original manufacturer or authorized distributors?
All AT45DQ161-SSHFHJ-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 AT45DQ161-SSHFHJ-T meets industry standards.
7.What is the process for return or replacement of AT45DQ161-SSHFHJ-T?
All AT45DQ161-SSHFHJ-T units undergo pre-shipment inspection (PSI). If there is an issue with AT45DQ161-SSHFHJ-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 AT45DQ161-SSHFHJ-T part is unused and in its original packaging.
Return procedure for AT45DQ161-SSHFHJ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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