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Renesas AT45DB041E-SHNHC-T
- Part No.:
- AT45DB041E-SHNHC-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT45DB041E-SHNHC-T.pdf
- Description:
- IC FLASH 4MBIT SPI 85MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
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Product details
Overview
AT45DB041E-SHNHC-T from Renesas Electronics is a 4-Mbit serial DataFlash memory with two independent 256/264-byte SRAM buffers, SPI interface (modes 0 and 3), RapidS™ high-speed operation up to 85 MHz, and ultra-low deep power-down current of 400 nA. It enables continuous data streaming in embedded voice, firmware storage, and IoT sensor logging applications.
For engineers reviewing the AT45DB041E-SHNHC-T datasheet, AT45DB041E-SHNHC-T pinout, AT45DB041E-SHNHC-T application, or AT45DB041E-SHNHC-T equivalent, key selection criteria include page size configurability (256 vs. 264 bytes), buffer-to-memory program with built-in erase, sector lockdown security, and industrial temperature support (–40 °C to +125 °C).
Technical Context
The AT45DB041E-SHNHC-T implements a dual-buffered sequential-access Flash architecture optimized for SPI-based systems requiring concurrent read/write operations. Its RapidS™ mode supports high-frequency continuous array reads using opcodes 0Bh and 1Bh, while legacy and low-power modes (01h, 03h, E8h) provide flexibility across performance and energy constraints.
It features hardware- and software-controlled sector protection, a 128-byte OTP security register (64 bytes factory-unique ID + 64 bytes user-programmable), and full erase hierarchy - page (256/264 B), block (2 kB), sector (64 kB), and chip (4 Mbit) - all with suspend/resume capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory capacity | 4,194,304 bits (4 Mbit) organized as 2,048 pages × 256 or 264 bytes |
| Supply voltage | 1.65 V to 3.6 V single supply - enables direct interfacing with 1.8 V and 3.3 V microcontrollers |
| Max clock frequency | 85 MHz in RapidS™ mode - reduces serial transfer time for large firmware updates |
| Power-down current | 400 nA typical ultra-deep power-down - extends battery life in always-on edge sensors |
| Endurance | 100,000 program/erase cycles at –40 °C to +85 °C - suitable for frequent field firmware updates |
| Data retention | 20 years - ensures long-term reliability in unattended industrial deployments |
| Operating temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
Package: 8-pad Ultra-thin DFN (5 mm × 6 mm × 0.6 mm), RoHS-compliant, green packaging.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; places SO in high-impedance when deasserted - allows multi-device SPI bus sharing |
| SCK | Serial Clock | Input timing reference for all SPI transfers; supports modes 0 and 3 - compatible with most MCU SPI peripherals |
| SI | Serial Input | Command/address/data input path; latched on SCK rising edge in mode 0 - enables standard command sequencing |
| SO | Serial Output | Data/command response output; driven only when CS is active - eliminates bus contention |
| WP | Write Protect | Hardware sector protection enable; active-low - provides physical lock against accidental erase/program |
| RESET | Reset Input | Active-low hardware reset; returns device to known state without power cycle - improves system recovery robustness |
| VCC | Power Supply | 1.65–3.6 V supply; powers core logic, Flash array, and buffers - eliminates need for external level shifters |
| GND | Ground | Reference return path; bottom thermal pad is NC or GND - supports thermal management or PCB grounding |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SRAM buffers | Enables simultaneous receive-to-buffer and buffer-to-main-memory programming - eliminates write latency bottlenecks in real-time data loggers |
| User-configurable page size | Factory-set 256-byte or default 264-byte pages - allows optimization for legacy compatibility or metadata overhead reduction |
| Program/erase suspend/resume | Pauses ongoing erase or program to service urgent read requests - critical for deterministic response in safety-critical systems |
| Sector lockdown | Makes any memory sector permanently read-only after one-time freeze - prevents tampering with boot code or calibration data |
| RapidS™ high-speed read | 6 ns clock-to-output (tV) with 85 MHz sustained throughput - accelerates firmware loading and image decompression |
Applications
| Firmware Storage | Voice/Data Logging |
|---|---|
Use Scenario: Storing and updating bootloader and application firmware in an industrial PLC controller. IC Role / Device Role / Timing Role: Non-volatile program code storage with in-system reprogrammability via SPI. Use Value: Enables field firmware upgrades without removing the module; 100,000-cycle endurance supports >10 years of scheduled updates. | Use Scenario: Capturing sensor readings and audio snippets in a battery-powered environmental monitor. IC Role / Device Role / Timing Role: High-reliability sequential data buffer with ultra-low deep power-down current. Use Value: 400 nA ultra-deep power-down extends 10-year battery life; dual buffers allow gapless recording during flash reprogramming. |
| Secure Boot Configuration | IoT Edge Device Storage |
Use Scenario: Holding immutable boot configuration and cryptographic keys in a smart meter. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage using sector lockdown and OTP security register. Use Value: Sector lockdown prevents runtime modification of boot parameters; 64-byte factory UID enables device identity binding. | Use Scenario: Local caching of OTA update packages and telemetry history in a cellular-connected gateway. IC Role / Device Role / Timing Role: High-speed, low-voltage serial Flash supporting RapidS™ burst reads and buffered writes. Use Value: 85 MHz RapidS™ read speeds reduce OTA verification time; 264-byte page format accommodates packet-aligned data structures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT45DB041D-SHNHC-T | Previous revision with identical pinout and command set but lower max clock (66 MHz) and no RapidS™ mode | Lacks 85 MHz high-speed read and 6 ns tV - unsuitable for time-critical firmware load scenarios | Select AT45DB041E-SHNHC-T when RapidS™ throughput or extended temperature range (–40 °C to +125 °C) is required |
| W25Q40EWUXIE | 4 Mbit Quad SPI Flash with QPI/DTR support; no dual SRAM buffers or RapidS™; 1.7–1.95 V supply only | Requires quad I/O and higher voltage margin; lacks buffer interleaving and sector lockdown security | Choose W25Q40EWUXIE only if system already uses Quad SPI infrastructure and does not require concurrent buffer operations or hardware sector lockdown |
Compared with AT45DB041D-SHNHC-T and W25Q40EWUXIE, the AT45DB041E-SHNHC-T uniquely delivers 85 MHz RapidS™ read performance, dual-buffer concurrency, and hardware-enforced sector lockdown - making it optimal for secure, real-time embedded storage where deterministic latency and tamper resistance are design requirements.
Availability
AT45DB041E-SHNHC-T is available at Aetrix Electronics and suitable for firmware storage, voice/data logging, secure boot configuration, and IoT edge device storage requiring stable component supply across industrial and automotive temperature ranges.
Supply support for AT45DB041E-SHNHC-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 trusted embedded solutions for automotive, industrial, infrastructure, and IoT markets.
The AT45DB041E-SHNHC-T belongs to Renesas' DataFlash® family, designed specifically for high-reliability, low-pin-count serial Flash applications demanding concurrent buffer access, flexible erase granularity, and hardware-level security features.
FAQ
What is the maximum operating frequency of the AT45DB041E-SHNHC-T?
The AT45DB041E-SHNHC-T supports up to 85 MHz in RapidS™ mode for continuous array reads, with clock-to-output time (tV) of 6 ns maximum. This enables high-throughput firmware loading and image streaming. Standard SPI modes (0 and 3) operate reliably across the full 1.65–3.6 V supply range, and low-power read mode supports up to 15 MHz for energy-constrained operation.
Does the AT45DB041E-SHNHC-T support true byte-level programming?
No, the AT45DB041E-SHNHC-T does not support direct byte-level programming. It requires page-level (256/264 bytes) or buffer-based write operations. However, it implements a self-contained read-modify-write command (opcode 58h) that emulates EEPROM-like byte alterability by internally reading a page into buffer, modifying specified bytes, and rewriting the full page - preserving data integrity without host-side buffering.
How is sector protection implemented on the AT45DB041E-SHNHC-T?
The AT45DB041E-SHNHC-T implements sector protection via both software commands (enable/disable sector protection, program/erase sector protection register) and hardware control through the WP pin. Each of the 64 sectors can be individually protected. Sector lockdown - a one-time irreversible operation - freezes protection status and makes the sector permanently read-only, enforced by dedicated hardware logic independent of software state.
What package type is used for the AT45DB041E-SHNHC-T?
The AT45DB041E-SHNHC-T uses an 8-pad Ultra-thin DFN package measuring 5 mm × 6 mm × 0.6 mm. The bottom thermal pad is not internally connected and may be left floating or tied to GND per PCB layout requirements. This RoHS-compliant, green package supports high-density mounting and thermal dissipation in space-constrained industrial and automotive modules.
Can the AT45DB041E-SHNHC-T operate across the full industrial temperature range?
Yes, the AT45DB041E-SHNHC-T is fully specified for operation from –40 °C to +125 °C. Its endurance (100,000 cycles at –40 °C to +85 °C; 10,000 cycles at –40 °C to +125 °C) and data retention (20 years) are guaranteed across this extended range, making it suitable for under-hood automotive ECUs, motor drives, and outdoor industrial controllers where ambient temperatures exceed standard commercial limits.
AT45DB041E-SHNHC-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 4Mbit
- Memory Organization:
- 264 Bytes x 2048 pages
- Memory Interface:
- SPI
- Clock Frequency:
- 85 MHz
- Write Cycle Time - Word, Page:
- 8µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT45DB041E-SHNHC-T FAQ
1.How can I place an order for AT45DB041E-SHNHC-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT45DB041E-SHNHC-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 AT45DB041E-SHNHC-T reliable?
The price and inventory of AT45DB041E-SHNHC-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT45DB041E-SHNHC-T is usually 5 days.
3.What payment methods are accepted for AT45DB041E-SHNHC-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT45DB041E-SHNHC-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT45DB041E-SHNHC-T?
AT45DB041E-SHNHC-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT45DB041E-SHNHC-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 AT45DB041E-SHNHC-T?
For technical support, including AT45DB041E-SHNHC-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT45DB041E-SHNHC-T requirements.
6.How does Aetrix verify that AT45DB041E-SHNHC-T is sourced from the original manufacturer or authorized distributors?
All AT45DB041E-SHNHC-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 AT45DB041E-SHNHC-T meets industry standards.
7.What is the process for return or replacement of AT45DB041E-SHNHC-T?
All AT45DB041E-SHNHC-T units undergo pre-shipment inspection (PSI). If there is an issue with AT45DB041E-SHNHC-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 AT45DB041E-SHNHC-T part is unused and in its original packaging.
Return procedure for AT45DB041E-SHNHC-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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