My Inquiry
My Account
Renesas AT25DF041B-XMHN-T
- Part No.:
- AT25DF041B-XMHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25DF041B-XMHN-T.pdf
- Description:
- IC FLASH 4MBIT SPI 104MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:135
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25DF041B-XMHN-T from Renesas Electronics is a 4-Mbit serial SPI Flash memory IC optimized for code shadowing and mixed code/data storage in embedded systems. It operates from 1.65 V to 3.6 V across –40 °C to +85 °C, supports SPI Modes 0/3 and Dual-I/O read, delivers 104 MHz max clock frequency with 6 ns clock-to-output delay, and integrates hardware write protection via WP pin.
For engineers reviewing the AT25DF041B-XMHN-T datasheet, AT25DF041B-XMHN-T pinout, AT25DF041B-XMHN-T application, or AT25DF041B-XMHN-T equivalent, key selection criteria include dual-I/O throughput, 256-byte page erase granularity, OTP security register usability, industrial temperature support, and compatibility with low-voltage microcontroller interfaces.
Technical Context
The AT25DF041B-XMHN-T implements a flexible erase architecture with four uniform block sizes (4/32/64 kByte) plus 256-byte page erase, enabling efficient partitioning of firmware code and runtime data without cross-contamination. Its Dual-I/O Read mode uses SI and SO as concurrent data outputs, doubling effective read bandwidth versus standard SPI.
Internal control logic enforces hardware-based sector locking via the WP pin and supports software-controlled protection commands, while the 128-byte OTP register provides factory-programmed unique ID and user-programmable secure storage - all within a single 1.65–3.6 V supply domain requiring no auxiliary voltage rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit (512 kByte) - sufficient for boot code, firmware images, and configuration data in resource-constrained MCU systems. |
| Interface Protocol | SPI Modes 0 and 3 with Dual-I/O support - enables high-speed reads using both SI and SO pins simultaneously. |
| Max Clock Frequency | 104 MHz - achieves up to 208 MB/s effective read throughput in Dual-I/O mode. |
| Erase Granularity | 256-byte page, 4/32/64 kByte blocks, full chip - allows precise updates of small firmware patches or parameter sets. |
| OTP Security Register | 128-byte (64-byte factory ID + 64-byte user-programmable) - supports device serialization and secure key storage. |
| Power Consumption | 200 nA ultra-deep power-down current - enables multi-year battery operation in always-on IoT edge nodes. |
| Endurance & Retention | 100,000 program/erase cycles and 20-year data retention at –40 °C to +85 °C - meets industrial lifecycle requirements. |
Pinout & Package
AT25DF041B-XMHN-T is packaged in an 8-lead SOIC (150-mil) body measuring 5.0 × 4.0 × 1.75 mm, compliant with JEDEC MS-012AA. Pin functions are electrically and functionally identical across all package variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must transition high→low to initiate command sequence and low→high to terminate. |
| SCK | Serial Clock | Master-generated clock; rising edge latches input (SI), falling edge clocks output (SO/I/O0–I/O1). |
| SI (I/O0) | Serial Input / Dual-I/O Data 0 | Command/address/data input in standard mode; becomes output (I/O0) during Dual-I/O Read for concurrent bit transfer. |
| SO (I/O1) | Serial Output / Dual-I/O Data 1 | Data output in standard mode; remains output (I/O1) during Dual-I/O Read to deliver second bit per clock cycle. |
| WP | Write Protect | Hardware lock control; low assertion enables sector-level protection independent of software commands. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfers without deselecting device or resetting internal state; requires CS asserted and SCK low. |
| VCC | Power Supply | Single 1.65–3.6 V rail powers all operations - no VPP or auxiliary voltage required for programming/erasing. |
| GND | Ground Reference | Common return path for digital I/O and core memory array; must be low-impedance connection to system ground. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-I/O Read Mode | Enables 2-bit-per-clock read transfers using SI and SO concurrently, doubling effective read bandwidth over standard SPI. |
| Flexible Erase Architecture | Supports 256-byte page, 4/32/64 kByte uniform blocks, and full-chip erase - minimizes wasted space in mixed code/data layouts. |
| Hardware Write Protection | WP pin provides physical, non-volatile sector locking that persists through power cycles and overrides software commands. |
| 128-Byte OTP Security Register | Factory-programmed 64-byte unique ID + 64-byte user-writable space - enables secure device identity and encrypted key storage. |
| Ultra-Low Power States | 200 nA ultra-deep power-down and 5 µA deep power-down currents - extends battery life in always-listening sensor nodes. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing firmware images and calibration tables in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Nonvolatile code storage and execution shadowing source for ARM Cortex-M7 host MCU. Use Value: 100,000-cycle endurance and 20-year data retention ensure reliable operation over 15+ year equipment lifecycles without field reprogramming. |
Use Scenario: Holding certified boot loader and diagnostic firmware in portable ultrasound and infusion pump systems. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for FDA-compliant firmware with cryptographic signature verification. Use Value: 128-byte OTP register stores factory-assigned device serial number and encrypted root key, satisfying IEC 62304 traceability requirements. |
| Smart Meter Parameter Logging | Automotive Body Control Module |
Use Scenario: Recording time-stamped energy consumption data and tariff schedules in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-reliability data logger with wear-leveling enabled by fine-grained 256-byte page erase. Use Value: Page-erase granularity reduces write amplification during frequent 128-byte parameter updates, extending flash lifetime beyond 10 years. |
Use Scenario: Storing vehicle-specific configuration profiles (lighting, window, mirror settings) in 12 V automotive BCMs. IC Role / Device Role / Timing Role: SPI-connected configuration memory interfacing directly with Infineon AURIX TC3xx MCU. Use Value: 1.65–3.6 V operating range tolerates cold-crank voltage dips to 1.8 V while maintaining valid read access during startup. |
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 W25Q40EW | 4 Mbit density, 133 MHz max clock, Quad-I/O support (vs. Dual-I/O only), no OTP register. | Better raw read speed but lacks hardware-secured unique ID; requires external key management for secure boot. | Choose W25Q40EW when higher throughput justifies added interface complexity and OTP is not required. |
| Micron MT25QL04A | 4 Mbit density, 133 MHz max clock, Quad-I/O and XIP support, 100,000-cycle endurance at –40 °C to +105 °C. | Supports execute-in-place (XIP) for direct code execution; wider temp range than AT25DF041B-XMHN-T's +85 °C limit. | Choose MT25QL04A when XIP capability or extended temperature operation up to +105 °C is mandatory. |
Compared with W25Q40EW and MT25QL04A, AT25DF041B-XMHN-T offers integrated OTP-based device identity and lower-power deep-sleep modes, making it optimal for cost-sensitive, battery-powered, and security-aware embedded designs where Dual-I/O bandwidth suffices.
Availability
AT25DF041B-XMHN-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, smart meter parameter logging, and automotive body control module applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AT25DF041B-XMHN-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 AT25DF041B-XMHN-T belongs to Renesas' serial Flash memory product line, designed specifically for low-voltage, high-reliability embedded code and data storage in space- and power-constrained systems.
FAQ
What is the operating voltage range of the AT25DF041B-XMHN-T?
The AT25DF041B-XMHN-T operates from 1.65 V to 3.6 V across the full industrial temperature range (–40 °C to +85 °C). This single-supply design eliminates need for separate VPP or auxiliary rails, simplifying power architecture in battery-powered and low-voltage MCU systems. The AT25DF041B-XMHN-T maintains full functionality including Dual-I/O Read and page programming across this entire voltage window.
Does the AT25DF041B-XMHN-T support Quad-I/O or only Dual-I/O?
The AT25DF041B-XMHN-T supports SPI Modes 0 and 3 with Dual-I/O Read only - it does not implement Quad-I/O. In Dual-I/O mode, both SI (I/O0) and SO (I/O1) function as concurrent data outputs, delivering two bits per clock cycle. The AT25DF041B-XMHN-T datasheet confirms absence of QIO commands and quad-capable pin assignments, distinguishing it from later-generation Quad-SPI Flash devices.
How is hardware write protection implemented on the AT25DF041B-XMHN-T?
Hardware write protection on the AT25DF041B-XMHN-T is controlled by the WP (Write Protect) pin, which enables physical, non-volatile locking of protected sectors independent of software commands. When WP is driven low, selected sectors become immune to program/erase operations until WP is deasserted. The AT25DF041B-XMHN-T also supports software-based protection via Status Register bits, but WP provides fail-safe, power-cycle-persistent enforcement.
What is the purpose and structure of the OTP security register in the AT25DF041B-XMHN-T?
The AT25DF041B-XMHN-T includes a 128-byte OTP (One-Time Programmable) Security Register divided into two 64-byte sections: the first is factory-programmed with a unique device identifier, and the second is user-programmable for secure keys or calibration data. Once written, OTP bytes cannot be altered - ensuring immutable device identity and cryptographic binding. This register is accessed via dedicated Program/Read OTP commands defined in the AT25DF041B-XMHN-T datasheet.
Can the AT25DF041B-XMHN-T operate across the full automotive temperature range?
No, the AT25DF041B-XMHN-T is rated for the industrial temperature range of –40 °C to +85 °C, not the extended automotive AEC-Q100 Grade 2 (–40 °C to +105 °C) or Grade 1 (–40 °C to +125 °C) ranges. While Renesas offers automotive-qualified variants in the AT25DF family (e.g., AT25DF041B-MAHN-T for –40 °C to +125 °C), the AT25DF041B-XMHN-T part number specifically denotes the industrial-grade version with +85 °C maximum ambient rating.
AT25DF041B-XMHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 8µs, 2.5ms
- 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-TSSOP
AT25DF041B-XMHN-T FAQ
1.How can I place an order for AT25DF041B-XMHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DF041B-XMHN-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 AT25DF041B-XMHN-T reliable?
The price and inventory of AT25DF041B-XMHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DF041B-XMHN-T is usually 5 days.
3.What payment methods are accepted for AT25DF041B-XMHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DF041B-XMHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DF041B-XMHN-T?
AT25DF041B-XMHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DF041B-XMHN-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 AT25DF041B-XMHN-T?
For technical support, including AT25DF041B-XMHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DF041B-XMHN-T requirements.
6.How does Aetrix verify that AT25DF041B-XMHN-T is sourced from the original manufacturer or authorized distributors?
All AT25DF041B-XMHN-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 AT25DF041B-XMHN-T meets industry standards.
7.What is the process for return or replacement of AT25DF041B-XMHN-T?
All AT25DF041B-XMHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25DF041B-XMHN-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 AT25DF041B-XMHN-T part is unused and in its original packaging.
Return procedure for AT25DF041B-XMHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25DF041B-XMHN-T Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
