My Inquiry
My Account
Renesas AT25XE041D-SHN-B
- Part No.:
- AT25XE041D-SHN-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25XE041D-SHN-B.pdf
- Description:
- IC FLASH 4MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,301
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25XE041D-SHN-B from Renesas Electronics is a 4-Mbit SPI serial flash memory IC supporting 1.65 V–3.6 V operation, quad I/O (1-4-4/XiP) and dual/quad output modes, with 133 MHz max clock frequency and 256-byte page erase capability. It serves as non-volatile program storage or XiP code execution memory in battery-powered IoT edge nodes, industrial controllers, and embedded boot loaders.
For engineers reviewing the AT25XE041D-SHN-B datasheet, AT25XE041D-SHN-B pinout, AT25XE041D-SHN-B application, or AT25XE041D-SHN-B equivalent, key selection criteria include its ultra-low 5 nA UDPD current, SRAM-emulating Read-Modify-Write command, JEDEC-standard SFDP support, hardware reset pin, and OTP security register configuration for firmware integrity.
Technical Context
The AT25XE041D-SHN-B implements a flexible multi-I/O SPI interface with configurable transfer modes: standard 1-1-1, dual-output 1-1-2, quad-output 1-1-4, quad-I/O 1-4-4, and XiP-capable 0-4-4. Its internal architecture integrates a 256-byte SRAM buffer, non-volatile status registers, and dedicated OTP security registers mapped to physical addresses.
It supports nested erase/program suspend-resume operations, active status interrupt signaling via RDY/BSY flag clearing, and low-power Deep Power-Down (8.5 µA) and Ultra-Deep Power-Down (5 nA) states. Memory protection includes individual block lock, user-definable protected regions, and volatile/non-volatile status register locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mbit (512 KB), organized as 64 K × 8-bit for direct byte addressing and firmware storage. |
| Supply voltage range | 1.65 V to 3.6 V - enables single-supply operation across Li-ion, coin-cell, and 3.3 V system rails. |
| Max SPI clock frequency | 133 MHz - delivers up to 532 MB/s effective read throughput in quad I/O (1-4-4) mode. |
| Erase granularity | 256-byte page erase - minimizes write latency and wear for small-data logging without full-block overhead. |
| Ultra-deep power-down current | 5–7 nA typical - extends battery life in always-on sensor nodes during extended sleep intervals. |
| Endurance & retention | 100,000 program/erase cycles and 20-year data retention - suitable for field-updatable firmware and infrequent parameter storage. |
| Security features | 3 × 128-byte One-Time Programmable (OTP) registers + factory-unique 128-byte ID - supports secure boot key binding and device identity provisioning. |
Pinout & Package
AT25XE041D-SHN-B is supplied in an 8-lead SOIC (150-mil) package per JEDEC MS-012, with lead finish Pb/Halide-free and RoHS compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command/data transfers; must be asserted before SCK edge to initiate communication. |
| SCK | Serial Clock | Input clock synchronizing all SPI data transfers; supports up to 133 MHz in quad I/O mode. |
| SI (I/O0) | Serial Input / Quad I/O Lane 0 | Primary input for commands, addresses, and data in standard/dual/quad modes; bidirectional in quad I/O. |
| SO (I/O1) | Serial Output / Quad I/O Lane 1 | Primary output for read data; bidirectional in quad I/O; supports dual/quad output reads. |
| WP (I/O2) | Write Protect / Quad I/O Lane 2 | Hardware write protection when held low; also functions as I/O2 in quad I/O mode. |
| HOLD/RESET (I/O3) | Hold Input or Hardware Reset | Pauses ongoing transfers when asserted; alternatively triggers JEDEC-standard hardware reset if configured. |
| VCC | Power Supply | 1.65–3.6 V supply input; decoupling capacitor required near pin for stable high-speed operation. |
| GND | Ground | Reference return path for all digital and analog circuitry; must be low-impedance connection. |
Key Features
| Feature | Design Value |
|---|---|
| Read-Modify-Write (RMW) command (0Ah) | Emulates SRAM-style byte writes in one atomic SPI transaction - eliminates external buffering and software overhead for EEPROM-like updates. |
| Active status interrupt (25h) | Generates host interrupt on RDY/BSY flag transition - enables event-driven polling reduction and deterministic timing for real-time systems. |
| Serial Flash Discoverable Parameters (SFDP) | JEDEC-standard SFDP table (5Ah) provides runtime-configurable parameters - allows bootloader auto-detection of timing, erase sizes, and feature sets without hardcoding. |
| Flexible memory protection | Individual block lock + start/end user-defined protected area - supports secure firmware partitioning and field update safety zones. |
| Quad I/O and XiP support | 1-4-4 and 0-4-4 command formats enable continuous high-bandwidth code fetch - reduces instruction fetch latency in microcontroller boot and runtime execution. |
Applications
| Industrial PLC Firmware Storage | IoT Edge Node Parameter Logging |
|---|---|
|
Use Scenario: Storing and updating firmware images and configuration parameters in programmable logic controllers operating in harsh environments with wide temperature swings. IC Role / Device Role / Timing Role: Non-volatile program memory and persistent parameter store; supports fast XiP boot and atomic RMW updates during runtime reconfiguration. Use Value: 20-year data retention and -40°C to +85°C operation ensure long-term reliability; 256-byte page erase minimizes update time and flash wear during frequent parameter changes. |
Use Scenario: Capturing sensor calibration data, device state history, and OTA update metadata in battery-powered wireless sensors deployed remotely. IC Role / Device Role / Timing Role: Low-power persistent data logger; leverages UDPD (5 nA) and deep-sleep wake-on-interrupt for energy-constrained operation. Use Value: Ultra-low standby current extends multi-year battery life; OTP registers securely bind calibration keys to prevent tampering during field service. |
| Medical Wearable Boot Memory | Smart Home Hub Code Execution |
|
Use Scenario: Hosting boot loader and critical diagnostic firmware in compact, regulated medical wearables requiring traceable firmware versions and secure boot. IC Role / Device Role / Timing Role: Secure boot memory with factory-unique ID and OTP-locked security keys; supports authenticated XiP execution during startup. Use Value: 128-byte unique ID and 3×128-byte OTP registers enable cryptographic key binding and version attestation; JEDEC ID ensures supply chain authenticity verification. |
Use Scenario: Executing application firmware directly from flash in voice-controlled smart home hubs with limited RAM footprint and thermal constraints. IC Role / Device Role / Timing Role: eXecute-in-Place (XiP) code memory; uses 0-4-4 continuous read mode to eliminate opcode overhead and sustain >400 MB/s effective bandwidth. Use Value: 133 MHz quad I/O interface and continuous read reduce CPU wait states; eliminates need for large external RAM buffers, lowering BOM cost and PCB area. |
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, 1.7–1.95 V / 2.7–3.6 V dual supply; no UDPD mode; lacks RMW command and OTP registers. | Targeted at cost-sensitive consumer devices where ultra-low power and secure firmware binding are not required. | Choose W25Q40EW only if supply voltage is strictly 3.3 V or 1.8 V and security/low-power features are unnecessary. |
| Micron MT25QL04A | 4 Mbit, 2.7–3.6 V only; supports SFDP and quad I/O but no 256-byte page erase or UDPD (min 25 µA DPD). | Used in automotive infotainment where higher voltage tolerance and AEC-Q100 qualification matter more than sub-µA sleep. | Select MT25QL04A when AEC-Q100 compliance is mandatory and 1.65 V operation or nanoamp sleep is not needed. |
Compared with W25Q40EW and MT25QL04A, the AT25XE041D-SHN-B uniquely combines 1.65 V operation, 5 nA UDPD, atomic RMW, and OTP security - making it optimal for battery-powered, security-critical, and thermally constrained embedded designs where other alternatives require trade-offs in voltage range, power, or firmware integrity.
Availability
AT25XE041D-SHN-B is available at Aetrix Electronics and suitable for industrial PLC firmware storage, IoT edge node parameter logging, medical wearable boot memory, and smart home hub code execution requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25XE041D-SHN-B 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 with emphasis on reliability and low-power innovation.
The AT25XE041D belongs to Renesas' high-efficiency serial flash product line, designed specifically for ultra-low-power, secure, and flexible code/data storage in resource-constrained embedded systems.
FAQ
What is the operating voltage range of the AT25XE041D-SHN-B?
The AT25XE041D-SHN-B operates from 1.65 V to 3.6 V, enabling compatibility with both 1.8 V and 3.3 V system rails. This wide range supports direct integration into battery-powered devices using single-cell Li-ion or coin-cell sources without level-shifting circuitry. The AT25XE041D-SHN-B maintains full functionality-including 133 MHz quad I/O operation and RMW command execution-across the entire voltage range.
Does the AT25XE041D-SHN-B support execute-in-place (XiP) operation?
Yes, the AT25XE041D-SHN-B supports XiP via 0-4-4 and 1-4-4 command formats, enabling continuous high-speed code fetch without repeated opcode transmission. It achieves this through dedicated quad I/O lanes and burst wrap configuration, reducing instruction fetch latency significantly compared to standard SPI. The AT25XE041D-SHN-B's XiP capability is validated across its full temperature range (-40°C to +85°C) and voltage range (1.65–3.6 V).
How does the Read-Modify-Write (RMW) command work in the AT25XE041D-SHN-B?
The AT25XE041D-SHN-B implements the RMW command (0Ah) to emulate SRAM-style byte-level writes in a single atomic SPI transaction. Internally, it reads a full page, modifies the target byte(s), erases the page, and reprograms it-all transparently. This eliminates external buffering and software overhead for EEPROM-like updates. The AT25XE041D-SHN-B guarantees atomicity even during power loss, leveraging on-chip error detection and recovery logic.
What security features does the AT25XE041D-SHN-B provide?
The AT25XE041D-SHN-B includes a factory-programmed 128-byte unique identifier and three 128-byte One-Time Programmable (OTP) security registers. These OTP registers can store cryptographic keys, device certificates, or calibration secrets and are permanently locked after programming. The AT25XE041D-SHN-B also supports individual block protection and user-definable protected memory regions to prevent unauthorized firmware modification or data access.
What is the lowest power consumption state supported by the AT25XE041D-SHN-B?
The AT25XE041D-SHN-B supports Ultra-Deep Power-Down (UDPD) mode with a typical current draw of 5–7 nA, activated via the 79h command. In this state, all internal circuitry except the wake-up detection logic is disabled, preserving memory contents while minimizing battery drain. The AT25XE041D-SHN-B exits UDPD within 30 µs upon CS assertion, enabling rapid resumption of operation in duty-cycled sensor applications.
AT25XE041D-SHN-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR (SLC)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 4ms, 30ms
- Access Time:
- 7 ns
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25XE041D-SHN-B FAQ
1.How can I place an order for AT25XE041D-SHN-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE041D-SHN-B 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 AT25XE041D-SHN-B reliable?
The price and inventory of AT25XE041D-SHN-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XE041D-SHN-B is usually 5 days.
3.What payment methods are accepted for AT25XE041D-SHN-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE041D-SHN-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE041D-SHN-B?
AT25XE041D-SHN-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE041D-SHN-B 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 AT25XE041D-SHN-B?
For technical support, including AT25XE041D-SHN-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE041D-SHN-B requirements.
6.How does Aetrix verify that AT25XE041D-SHN-B is sourced from the original manufacturer or authorized distributors?
All AT25XE041D-SHN-B 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 AT25XE041D-SHN-B meets industry standards.
7.What is the process for return or replacement of AT25XE041D-SHN-B?
All AT25XE041D-SHN-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE041D-SHN-B, 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 AT25XE041D-SHN-B part is unused and in its original packaging.
Return procedure for AT25XE041D-SHN-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25XE041D-SHN-B 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…
