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AT25SF041B-SHB-T
Renesas Electronics Corporation
IC FLASH 4MBIT SPI/QUAD 8SOIC
6488 Pcs New Original In Stock
FLASH - NOR Memory IC 4Mbit SPI - Quad I/O 108 MHz 8-SOIC
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5.0 / 5.0
- (485 Ratings)
AT25SF041B-SHB-T
Product Overview
9229104
DiGi Electronics Part Number
AT25SF041B-SHB-T-DGManufacturer
Renesas Electronics Corporation
AT25SF041B-SHB-T
Description
IC FLASH 4MBIT SPI/QUAD 8SOICInventory
6488 Pcs New Original In Stock
FLASH - NOR Memory IC 4Mbit SPI - Quad I/O 108 MHz 8-SOIC
Quantity
Minimum 1
Minimum 1
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Warranty & Returns
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365 - Day Quality Guarantee - Every part fully backed.
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AT25SF041B-SHB-T Technical Specifications
Category
Memory, Memory
Packaging
Tape & Reel (TR)
Series
-
Product Status
Active
DiGi-Electronics Programmable
Verified
Memory Type
Non-Volatile
Memory Format
FLASH
Technology
FLASH - NOR
Memory Size
4Mbit
Memory Organization
512K x 8
Memory Interface
SPI - Quad I/O
Clock Frequency
108 MHz
Write Cycle Time - Word, Page
50µs, 2.4ms
Voltage - Supply
2.7V ~ 3.6V
Operating Temperature
-40°C ~ 85°C (TC)
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.209", 5.30mm Width)
Supplier Device Package
8-SOIC
Base Product Number
AT25SF041
Datasheet & Documents
HTML Datasheet
AT25SF041B-SHB-T-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.32.0071
Additional Information
Other Names
-1415-AT25SF041B-SHB-TCT
1265-AT25SF041B-SHB-TTR
1265-AT25SF041B-SHB-TDKR
1265-AT25SF041B-SHB-TCT
Standard Package
2,000
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
Ils offrent un service après-vente de grande qualité, attentive et efficace.
грудня 02, 2025
Their environmentally conscious packaging is a big plus in my book.
грудня 02, 2025
I'm always satisfied with their friendly service and budget-friendly pricing.
грудня 02, 2025
The high-quality materials and craftsmanship are clearly evident.
грудня 02, 2025
Overall, their combination of quality, packaging, and price makes them my preferred choice.
грудня 02, 2025
Efficient logistics meant I received my order sooner than anticipated.
грудня 02, 2025
Delivery was on time every single time, no delays whatsoever.
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Frequently Asked Questions (FAQ)
Can the AT25SF041B-SHB-T reliably replace a Micron N25Q00AA11E in a legacy industrial control system without firmware changes?
While both are 4Mb NOR Flash devices with SPI interfaces, direct replacement of the N25Q00AA11E with the AT25SF041B-SHB-T is not recommended without firmware validation. The AT25SF041B-SHB-T uses a different command set for Quad I/O operations and has a faster clock frequency (108 MHz vs. 108 MHz max for N25Q but with different timing characteristics). Additionally, the status register configuration and deep power-down modes differ. You must verify opcode compatibility, especially for read/write/erase sequences, and test under full operating conditions—particularly at temperature extremes (-40°C to 85°C)—to avoid silent data corruption or boot failures in field deployments.
What are the key reliability risks when using the AT25SF041B-SHB-T in high-vibration automotive environments near its -40°C lower temperature limit?
The AT25SF041B-SHB-T is rated for -40°C to 85°C, but at the cold extreme, solder joint integrity on the 8-SOIC package becomes a critical failure point under sustained vibration. The coefficient of thermal expansion (CTE) mismatch between the PCB and package can induce microcracks, leading to intermittent connections. To mitigate this, use conformal coating, underfill if possible, and ensure IPC Class 3 assembly standards. Also, verify that your SPI controller can maintain stable timing at low temperatures, as signal propagation delays increase, potentially violating setup/hold times at 108 MHz. Always perform thermal cycling and vibration testing per AEC-Q100 guidelines if targeting automotive applications.
How does the AT25SF041B-SHB-T compare to the Winbond W25Q40EW in terms of endurance and data retention for frequent logging applications?
The AT25SF041B-SHB-T offers 100,000 program/erase cycles and 20-year data retention at 85°C, which is comparable to the Winbond W25Q40EW. However, the W25Q40EW supports a wider voltage range (1.65V to 1.95V), making it better suited for battery-powered systems. For frequent logging, the AT25SF041B-SHB-T’s faster page program time (2.4ms vs. ~3ms typical for W25Q40EW) reduces write latency, but its 2.7V minimum supply may limit use in ultra-low-power designs. If your system operates above 2.7V and prioritizes speed over voltage flexibility, the AT25SF041B-SHB-T is a strong choice—but implement wear leveling in firmware to maximize lifespan.
Is it safe to operate the AT25SF041B-SHB-T at 108 MHz with long PCB traces (>50mm) in a noisy industrial environment?
Operating the AT25SF041B-SHB-T at 108 MHz over long traces introduces significant signal integrity risks, including reflections, crosstalk, and EMI susceptibility—especially in industrial settings with motor drives or switching power supplies. The 8-SOIC package lacks shielding, and the Quad I/O mode increases simultaneous switching noise. To ensure reliability, keep traces under 30mm, use controlled impedance routing, add series termination resistors (22–33Ω) near the driver, and separate SPI lines from high-current paths. Consider reducing clock speed to 50 MHz if signal integrity cannot be guaranteed, as marginal timing margins at 108 MHz may cause read errors that manifest only under thermal or voltage stress.
Can I use the AT25SF041B-SHB-T in a design originally built for the Macronix MX25L4006E without modifying the PCB layout?
The AT25SF041B-SHB-T is pin-compatible with the MX25L4006E in 8-SOIC, so mechanical replacement is feasible. However, the MX25L4006E supports a lower minimum voltage (2.7V vs. 2.7V nominal, but with tighter noise margins near the lower limit), and its reset behavior during power-up differs slightly. More critically, the MX25L4006E has a slower maximum clock (104 MHz), so running the AT25SF041B-SHB-T at 108 MHz on the same PCB may expose layout weaknesses like insufficient decoupling or ground bounce. Verify power supply stability with a scope during fast transactions, and ensure your firmware doesn’t assume slower timing. Always validate boot reliability across the full temperature range before mass production.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
AT25SF041B-SHB-T CAD Models
Renesas Electronics Corporation AT25SF041B-SHB-T PCB symbols & footprints
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