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Renesas AT45DB161E-CCUF-T
- Part No.:
- AT45DB161E-CCUF-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 9-UBGA
- Datasheet:
-
AT45DB161E-CCUF-T.pdf
- Description:
- IC FLASH 16MBIT SPI 85MHZ 9UBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,659
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Product details
Overview
AT45DB161E-CCUF-T from Renesas Electronics is a 16-Mbit serial DataFlash memory with 528-byte pages, dual 528-byte SRAM buffers, and SPI interface supporting modes 0/3 up to 85 MHz. It operates from a single 2.3–3.6 V supply, features RapidS™ high-speed read, program/erase suspend/resume, and hardware/software sector protection - used in embedded firmware storage and real-time data logging systems.
For engineers reviewing the AT45DB161E-CCUF-T datasheet, AT45DB161E-CCUF-T pinout, AT45DB161E-CCUF-T application, or AT45DB161E-CCUF-T equivalent, key selection criteria include page size configurability (512/528 bytes), ultra-deep power-down current (400 nA), clock-to-output time (6 ns), buffer interleaving capability, and sector lockdown for secure firmware partitioning.
Technical Context
The AT45DB161E-CCUF-T implements a sequential-access Flash architecture with two independent SRAM buffers enabling concurrent read/write operations: one buffer accepts incoming data while the other transfers to main memory. Its SPI interface supports legacy and RapidS™ command sets, including continuous array reads at up to 85 MHz (0Bh/1Bh opcodes) and low-power reads at 15 MHz (01h opcode).
Memory organization comprises 4,096 pages of 528 bytes (default) or 512 bytes (factory-configurable), totaling 16 Mbits (17,301,504 bits) plus 512 kbits extra capacity. Erase granularity includes page (528 B), block (4 kB), sector (128 kB), and chip-level, all self-timed and compatible with suspend/resume during active operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Capacity | 16 Mbits (17,301,504 bits) main array + 512 kbits extra space |
| Page Size | 528 bytes (default); configurable to 512 bytes via factory setting |
| SRAM Buffers | Two independent 528-byte buffers enabling simultaneous receive-and-program operation |
| Max Clock Frequency | 85 MHz for RapidS™ high-speed read; 15 MHz for low-power read mode |
| Read Latency | 6 ns clock-to-output time (tV) - enables tight timing margins in high-speed controllers |
| Power Consumption | 400 nA ultra-deep power-down current (typical); 25 µA standby current (typical) |
| Endurance & Retention | 100,000 program/erase cycles per page; 20-year data retention |
Pinout & Package
AT45DB161E-CCUF-T uses an 8-pad Ultra-thin DFN package (5 mm × 6 mm × 0.6 mm) with exposed pad (non-connected or GND). Pin functions are defined per JEDEC-compliant SPI interface and support full compatibility with standard microcontroller SPI peripherals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; places SO in high-impedance when deasserted; initiates command decoding |
| SCK | Serial Clock | Input clock synchronizing all SPI transfers; supports modes 0 and 3 (CPOL=0/1, CPHA=0/1) |
| SI | Serial Input | Data input for commands, addresses, and write data; sampled on SCK rising/falling edge per mode |
| SO | Serial Output | Tri-state output for read data and status; high-impedance when CS is high |
| WP | Write Protect | Hardware sector protection control; low = enable protection, high = disable (per sector register) |
| RESET | Reset Input | Active-low hardware reset; returns device to power-on state without power cycle |
| VCC | Supply Voltage | Single 2.3–3.6 V or 2.5–3.6 V supply; powers core, I/O, and charge pump |
| GND | Ground | Reference for VCC and signal levels; connects to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| RapidS™ High-Speed Read | Enables 85 MHz continuous array reads (0Bh/1Bh opcodes), reducing firmware load latency by >3× vs. standard SPI Flash |
| Dual SRAM Buffers | Allows uninterrupted streaming: one buffer receives new data while the other writes to Flash - critical for real-time logging |
| Program/Erase Suspend | Pauses active erase/program to service urgent read requests, ensuring deterministic response in time-critical systems |
| 128-byte OTP Security Register | Contains 64-byte factory-unique ID + 64-byte user-programmable space for secure boot keys or calibration data |
| Sector Lockdown | Makes any memory sector permanently read-only after freeze command - prevents accidental or malicious firmware overwrite |
| Ultra-Deep Power-Down | 400 nA quiescent current extends battery life in always-on sensor nodes and IoT endpoints |
Applications
| Firmware Storage | Real-Time Data Logging |
|---|---|
Use Scenario: Storing bootloader, application firmware, and configuration tables in industrial PLCs and medical devices. IC Role / Device Role / Timing Role: Non-volatile code storage with fast read access and in-system reprogrammability via SPI. Use Value: 85 MHz RapidS™ read speed reduces boot time; sector lockdown protects bootloader integrity against corruption. |
Use Scenario: Continuous capture of sensor data (e.g., vibration, temperature) in predictive maintenance gateways. IC Role / Device Role / Timing Role: High-throughput sequential write buffer managing streaming data while background Flash programming occurs. Use Value: Dual 528-byte buffers enable zero-gap recording; suspend/resume avoids data loss during priority reads. |
| Secure Boot Configuration | Low-Power Edge Node Storage |
Use Scenario: Storing cryptographic keys, certificates, and immutable boot policy in automotive telematics modules. IC Role / Device Role / Timing Role: Secure non-volatile storage with hardware-enforced read-only sectors and OTP register. Use Value: Sector lockdown + 128-byte OTP register ensures keys remain tamper-resistant across lifecycle updates. |
Use Scenario: Battery-powered environmental monitors operating for years on coin-cell power. IC Role / Device Role / Timing Role: Ultra-low-power persistent storage for periodic sensor snapshots and event logs. Use Value: 400 nA ultra-deep power-down current minimizes energy drain during sleep intervals between measurements. |
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-QA | 16 Mbit Quad SPI NOR Flash; no SRAM buffers; 133 MHz QSPI clock; no RapidS™ or suspend/resume | Better raw throughput in QSPI systems; lacks concurrent buffer operation for streaming | Select for higher bandwidth in QSPI-capable hosts where buffer interleaving isn't required |
| Macronix MX25L1633FZBI-10G | 16 Mbit standard SPI NOR Flash; 104 MHz max clock; no dual buffers; no program/erase suspend | Lower cost; suitable for static firmware storage without real-time streaming needs | Select for cost-sensitive designs with infrequent updates and no streaming write requirements |
Compared with W25Q16JW-QA and MX25L1633FZBI-10G, the AT45DB161E-CCUF-T uniquely delivers concurrent buffer operation and program/erase suspend - essential for deterministic real-time data acquisition and firmware field updates without system interruption.
Availability
AT45DB161E-CCUF-T is available at Aetrix Electronics and suitable for firmware storage, real-time data logging, secure boot configuration, and low-power edge node storage requiring stable component supply and long-term industrial availability.
Supply support for AT45DB161E-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 markets.
The AT45DB161E belongs to Renesas' DataFlash family - designed specifically for high-reliability, low-pin-count, sequential-access Flash applications requiring concurrent buffering, rapid read performance, and robust security features.
FAQ
What is the default page size of the AT45DB161E-CCUF-T?
The AT45DB161E-CCUF-T ships with a default page size of 528 bytes. This is confirmed in the datasheet's Description section and Table 22 (Buffer and Page Size Configuration Commands). Factory configuration can set it to 512 bytes, but the -CCUF-T variant uses the standard 528-byte layout unless otherwise specified in ordering codes.
Does the AT45DB161E-CCUF-T support SPI mode 1 or mode 2?
No, the AT45DB161E-CCUF-T supports only SPI modes 0 and 3, as explicitly stated in the Features section of the datasheet. Mode 0 (CPOL = 0, CPHA = 0) and mode 3 (CPOL = 1, CPHA = 1) are fully supported; modes 1 and 2 are not electrically or functionally compatible with this device.
How does the dual-buffer architecture of the AT45DB161E-CCUF-T improve system performance?
The AT45DB161E-CCUF-T's two independent 528-byte SRAM buffers allow simultaneous data reception into one buffer while the other transfers content to Flash memory. This eliminates write stalls during continuous data streams - a key advantage over single-buffer or standard NOR Flash in real-time logging and audio capture applications.
Can the AT45DB161E-CCUF-T be used as EEPROM emulation?
Yes, the AT45DB161E-CCUF-T supports E2PROM emulation via its built-in read-modify-write operation (Section 7.6). This three-step process - read page to buffer, modify bytes, then program back - enables byte-level alterability without external logic, making it suitable for parameter storage and configuration registers.
What is the purpose of the WP pin on the AT45DB161E-CCUF-T?
The WP (Write Protect) pin on the AT45DB161E-CCUF-T provides hardware-level control over sector protection. When pulled low, it enables sector lockdown and protection register writes; when high, it disables hardware write protection - allowing software-controlled protection schemes to operate independently.
AT45DB161E-CCUF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 9-UBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
- Clock Frequency:
- 85 MHz
- Write Cycle Time - Word, Page:
- 8µs, 4ms
- 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)
AT45DB161E-CCUF-T FAQ
1.How can I place an order for AT45DB161E-CCUF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT45DB161E-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 AT45DB161E-CCUF-T reliable?
The price and inventory of AT45DB161E-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 AT45DB161E-CCUF-T is usually 5 days.
3.What payment methods are accepted for AT45DB161E-CCUF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT45DB161E-CCUF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT45DB161E-CCUF-T?
AT45DB161E-CCUF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT45DB161E-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 AT45DB161E-CCUF-T?
For technical support, including AT45DB161E-CCUF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT45DB161E-CCUF-T requirements.
6.How does Aetrix verify that AT45DB161E-CCUF-T is sourced from the original manufacturer or authorized distributors?
All AT45DB161E-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 AT45DB161E-CCUF-T meets industry standards.
7.What is the process for return or replacement of AT45DB161E-CCUF-T?
All AT45DB161E-CCUF-T units undergo pre-shipment inspection (PSI). If there is an issue with AT45DB161E-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 AT45DB161E-CCUF-T part is unused and in its original packaging.
Return procedure for AT45DB161E-CCUF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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