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Renesas AT45DQ161-CCUF-T
- Part No.:
- AT45DQ161-CCUF-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 9-UBGA
- Datasheet:
-
AT45DQ161-CCUF-T.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 9UBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,524
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Product details
Overview
AT45DQ161-CCUF-T from Renesas Electronics is a 16-Mbit serial DataFlash memory IC 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 microcontroller systems requiring high-speed sequential access and concurrent buffer operation.
For engineers reviewing the AT45DQ161-CCUF-T datasheet, AT45DQ161-CCUF-T pinout, AT45DQ161-CCUF-T application, or AT45DQ161-CCUF-T equivalent, key selection criteria include SPI mode 0/3 compatibility, RapidS™ timing, dual/quad I/O read/write capability, 2.3–3.6 V single-supply operation, and sector-level hardware/software protection for firmware integrity.
Technical Context
The AT45DQ161-CCUF-T implements a two-buffer architecture with independent 512/528-byte SRAM buffers enabling simultaneous data reception and main memory reprogramming. Its command set supports byte/page programming, buffer-to-memory transfer, auto page rewrite, and suspend/resume during erase/program operations.
It features JEDEC-standard Manufacturer and Device ID read (0x9F), programmable configuration register for Quad Enable, and dedicated security register with 128 bytes (64 factory UID + 64 user-programmable). Sector lockdown and individual sector protection are enforced via hardware WP pin and software commands.
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; tV ≤ 6 ns clock-to-output |
| Supply voltage | 2.3 V to 3.6 V single supply - enables direct interfacing with 2.5 V/3.3 V logic without level shifters |
| Power consumption | 500 nA ultra-deep power-down (typ), 25 µA standby (typ), 11 mA active read at 20 MHz |
| Erase granularity | Page (512/528 B), Block (4 kB), Sector (128 kB), Chip (16 Mbit) - supports fine-grained firmware updates |
| Data retention | 20 years minimum - suitable for long-lifecycle industrial and automotive applications |
| Endurance | 100,000 program/erase cycles per page (50,000 cycles for extended temperature option) |
Pinout & Package
AT45DQ161-CCUF-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 held low during entire transaction |
| SCK | Serial Clock | Input clock for SPI interface; 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 read operations; supports single/dual/quad output modes |
| WP | Write Protect | Hardware-enabled sector protection; low = protection active; tied high or controlled by host MCU |
| RESET | Reset Input | Active-low hardware reset; initiates internal state machine reset and clears status register |
| VCC | Power Supply | 2.3–3.6 V primary supply; decoupling capacitor required near pin |
| GND | Ground | Reference ground for all I/O and core circuitry; separate analog/digital ground not required |
Key Features
| Feature | Design Value |
|---|---|
| RapidS™ operation | Enables faster command execution and reduced latency in high-frequency SPI reads/writes |
| Dual-input/Quad-input Buffer Write | Accelerates data loading into SRAM buffers using 2- or 4-bit parallel data lanes, reducing bus occupancy |
| Concurrent buffer and main memory operation | Allows continuous streaming: receive new data into one buffer while programming previous data to flash |
| Program/Erase Suspend & Resume | Permits interrupting long erase/program operations to service time-critical host requests |
| 128-byte OTP Security Register | Provides tamper-resistant storage for keys, certificates, or unique identifiers - 64 bytes factory-programmed UID |
| Individual sector lockdown | Makes any 128 kB sector permanently read-only after freeze command - prevents accidental or malicious overwrite |
Applications
| Firmware Storage | Industrial Data Logging |
|---|---|
|
Use Scenario: Storing boot code, application firmware, and configuration tables for microcontrollers in edge gateways. IC Role / Device Role / Timing Role: Nonvolatile program memory with fast sequential read and rapid page update capability. Use Value: Enables over-the-air (OTA) firmware updates with minimal downtime via buffer-to-memory page program and suspend/resume. |
Use Scenario: Capturing sensor readings (temperature, pressure, vibration) at 10 kHz in predictive maintenance systems. IC Role / Device Role / Timing Role: High-throughput sequential write buffer with concurrent background flash programming. Use Value: Sustains continuous logging without data loss using dual-SRAM buffering and 85 MHz Quad-I/O writes. |
| Secure Boot Configuration | Medical Device Parameter Storage |
|
Use Scenario: Storing cryptographic keys, secure boot images, and device identity in Class I medical IoT devices. IC Role / Device Role / Timing Role: Tamper-resistant storage with sector lockdown and OTP security register. Use Value: Prevents unauthorized firmware modification via hardware WP pin and frozen sector lockdown of boot region. |
Use Scenario: Retaining calibration coefficients, usage history, and patient-specific settings in portable diagnostic equipment. IC Role / Device Role / Timing Role: Long-term, high-reliability nonvolatile memory with 20-year data retention and 100K endurance. Use Value: Guarantees parameter integrity across 10+ years of clinical use without refresh or backup power. |
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 SRAM buffers; no Dual/Quad-I/O; 133 MHz max clock; no RapidS™ | Lacks concurrent buffer operation and interleaved write capability; simpler command set | Choose when cost sensitivity outweighs need for streaming performance and firmware update flexibility |
| Macronix MX25L1633F | 16 Mbit SPI NOR Flash; no SRAM buffers; supports Quad-I/O only; no RapidS™; 104 MHz max clock | No buffer-based suspend/resume or auto page rewrite; limited protection granularity (no sector lockdown) | Prefer for legacy designs already using standard SPI NOR; avoid if concurrent buffer operation or secure lockdown is required |
Compared with W25Q16JW and MX25L1633F, the AT45DQ161-CCUF-T uniquely delivers real-time streaming via dual SRAM buffers, RapidS™ timing acceleration, and hardware-enforced sector lockdown - critical for OTA-updatable, safety-critical, or high-throughput embedded systems.
Availability
AT45DQ161-CCUF-T is available at Aetrix Electronics and suitable for firmware storage, industrial data logging, secure boot configuration, and medical device parameter storage requiring stable component supply and long-term lifecycle support.
Supply support for AT45DQ161-CCUF-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-CCUF-T belongs to Renesas' DataFlash family, designed specifically for high-speed sequential access, concurrent buffer operation, and robust firmware/data storage in resource-constrained embedded systems.
FAQ
What is the default page size configuration for AT45DQ161-CCUF-T?
The AT45DQ161-CCUF-T ships pre-configured with a 528-byte page size by default, but it can be factory-ordered with 512-byte page size. The page size is fixed at power-up and configured via the Buffer and Page Size Configuration Command (0x3D); AT45DQ161-CCUF-T supports both options without hardware change.
Does AT45DQ161-CCUF-T support true Quad-I/O read and write operations?
Yes, AT45DQ161-CCUF-T supports Quad-output Read Array (0x6B opcode) and Quad-input Buffer Write (0x34 opcode). Quad mode requires prior enabling via the Quad Enable command (0x41) and is validated per JEDEC JESD216 Annex A; AT45DQ161-CCUF-T achieves 85 MHz operation in this mode.
How does the dual-SRAM buffer architecture improve system throughput in AT45DQ161-CCUF-T?
The AT45DQ161-CCUF-T contains two independent 512/528-byte SRAM buffers that allow overlapping data reception and flash programming. While Buffer 1 loads new data, Buffer 2 transfers content to main memory - eliminating idle bus time and enabling sustained streaming; AT45DQ161-CCUF-T leverages this for real-time logging and OTA updates.
Can AT45DQ161-CCUF-T be used for EEPROM emulation?
Yes, AT45DQ161-CCUF-T supports EEPROM emulation through its flexible page/byte programming and auto page rewrite commands. By managing wear leveling in firmware and using the 512/528-byte buffers for atomic updates, AT45DQ161-CCUF-T provides bit- and byte-alterable storage without external controllers.
What protection mechanisms prevent unauthorized writes to AT45DQ161-CCUF-T?
AT45DQ161-CCUF-T implements three-tiered protection: hardware WP pin control, software-configurable sector protection register (0x36/0x39), and permanent sector lockdown (0x34) with freeze capability. The 128-byte OTP Security Register further secures keys and UIDs; AT45DQ161-CCUF-T enforces all protections independently of host software state.
AT45DQ161-CCUF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 9-UBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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 ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-UBGA (6x6)
AT45DQ161-CCUF-T FAQ
1.How can I place an order for AT45DQ161-CCUF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT45DQ161-CCUF-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-CCUF-T reliable?
The price and inventory of AT45DQ161-CCUF-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-CCUF-T is usually 5 days.
3.What payment methods are accepted for AT45DQ161-CCUF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT45DQ161-CCUF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT45DQ161-CCUF-T?
AT45DQ161-CCUF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT45DQ161-CCUF-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-CCUF-T?
For technical support, including AT45DQ161-CCUF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT45DQ161-CCUF-T requirements.
6.How does Aetrix verify that AT45DQ161-CCUF-T is sourced from the original manufacturer or authorized distributors?
All AT45DQ161-CCUF-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-CCUF-T meets industry standards.
7.What is the process for return or replacement of AT45DQ161-CCUF-T?
All AT45DQ161-CCUF-T units undergo pre-shipment inspection (PSI). If there is an issue with AT45DQ161-CCUF-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-CCUF-T part is unused and in its original packaging.
Return procedure for AT45DQ161-CCUF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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