Model No: AT25SF041B-SSHD-T
Renesas Electronics Corporation AT25SF041B-SSHD-T
Manufacturer: Renesas Electronics Corporation
SEMICON NO.: AT25SF041B-SSHD-T
Package: 8-SOIC
Stock: In stock
Description: NOR Flash Memory IC 4Mbit SPI-Quad I/O
SEMICON NO.: AT25SF041B-SSHD-T
Package: 8-SOIC
Stock: In stock
Description: NOR Flash Memory IC 4Mbit SPI-Quad I/O
Quantity :
| Mfr | Renesas Electronics Corporation |
| Device Type | SPI Serial NOR Flash Memory |
| Memory Size / Density | 4 Mbit (512 KB) |
| Memory Organization | 512K × 8 |
| Memory Type | Non-Volatile (FLASH - NOR) |
| Max Clock Frequency | 108 MHz |
| Interface Type | SPI – Single / Dual / Quad I/O |
| Supply Voltage | 2.5 V to 3.6 V |
| Read Current (Typ) | 3.3 mA |
| Interface Logic | Standard SPI compatible |
| Operating Temperature | –40°C to +85°C |
| Package | 8-SOIC |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
AT25SF041B-SSHD-T | Renesas SPI flash | 4Mbit NOR flash | 108MHz Quad SPI
The AT25SF041B-SSHD-T is a 4Mbit (512KB x 8) serial SPI NOR flash memory from Renesas Electronics, featuring Dual I/O and Quad I/O support with a maximum operating frequency of 108MHz. Organized as 512K x 8 bits, this non-volatile storage IC operates from a 2.5V to 3.6V single supply (D suffix) with typical 3mA active current and 25µA standby. The device delivers fast page program times of 0.4ms typical with 256-byte page granularity, flexible erase architecture with uniform 4KB, 32KB, and 64KB blocks, plus erase/program suspend-resume capability. Housed in a compact 8-SOIC package with tape-and-reel packing (T suffix), it integrates three 256-byte OTP security register pages and a 64-bit factory-programmed UID, targeting code shadowing, boot storage, and data logging applications across industrial temperature range (-40°C to +85°C).
Applications
● Code shadowing and boot storage where firmware is copied from flash into embedded or external RAM for execution in high-volume consumer devices.
● Execute-in-Place (XiP) memory for direct code execution from flash in space-constrained embedded systems.
● Data storage and logging where flexible erase block sizes eliminate wasted memory space in mixed code/data partitions.
● Firmware upgrade and configuration storage in industrial controllers, metering, and IoT edge nodes.
● Parameter and calibration storage requiring security registers for device serialization and key storage.
FAQs
Q: How fast can data be read? A: Up to 108MHz clock frequency with Quad I/O mode achieving effective data rates of 432Mbit/s (4 bits per clock).
Q: What is the difference between AT25SF041B-SSHD-T and AT25SF041B-SSHB-T? A: Both share identical die and package; the D suffix supports 2.5V to 3.6V supply while the B suffix requires 2.7V to 3.6V minimum, with the D variant enabling lower-voltage battery systems.
Q: How many security register pages are available? A: Three 256-byte OTP security register pages that can be individually locked for unique device serialization, ESN storage, or locked key storage.
Alternative Models
● AT25SF041B-SSHD-B: The identical 2.5V-variant silicon shipped in bulk tube packaging for prototyping and low-volume assembly.
● AT25SF041B-SSHB-T: The 2.7V minimum-supply version in tape-and-reel for applications with tighter 3V-rail regulation.
● AT25SF081B-SSHD-T: The 8Mbit density upgrade (1M x 8) sharing the same footprint and command set for doubled storage capacity.
● AT25SF161-SSHD-T: The 16Mbit sibling offering 4x capacity with identical 108MHz Quad-SPI performance for larger firmware images.
● W25X40CLSNIG: The Winbond 4Mbit alternative with 104MHz dual-output SPI operation as a drop-in competitor for cost-sensitive designs.
The AT25SF041B-SSHD-T is a 4Mbit (512KB x 8) serial SPI NOR flash memory from Renesas Electronics, featuring Dual I/O and Quad I/O support with a maximum operating frequency of 108MHz. Organized as 512K x 8 bits, this non-volatile storage IC operates from a 2.5V to 3.6V single supply (D suffix) with typical 3mA active current and 25µA standby. The device delivers fast page program times of 0.4ms typical with 256-byte page granularity, flexible erase architecture with uniform 4KB, 32KB, and 64KB blocks, plus erase/program suspend-resume capability. Housed in a compact 8-SOIC package with tape-and-reel packing (T suffix), it integrates three 256-byte OTP security register pages and a 64-bit factory-programmed UID, targeting code shadowing, boot storage, and data logging applications across industrial temperature range (-40°C to +85°C).
Applications
● Code shadowing and boot storage where firmware is copied from flash into embedded or external RAM for execution in high-volume consumer devices.
● Execute-in-Place (XiP) memory for direct code execution from flash in space-constrained embedded systems.
● Data storage and logging where flexible erase block sizes eliminate wasted memory space in mixed code/data partitions.
● Firmware upgrade and configuration storage in industrial controllers, metering, and IoT edge nodes.
● Parameter and calibration storage requiring security registers for device serialization and key storage.
FAQs
Q: How fast can data be read? A: Up to 108MHz clock frequency with Quad I/O mode achieving effective data rates of 432Mbit/s (4 bits per clock).
Q: What is the difference between AT25SF041B-SSHD-T and AT25SF041B-SSHB-T? A: Both share identical die and package; the D suffix supports 2.5V to 3.6V supply while the B suffix requires 2.7V to 3.6V minimum, with the D variant enabling lower-voltage battery systems.
Q: How many security register pages are available? A: Three 256-byte OTP security register pages that can be individually locked for unique device serialization, ESN storage, or locked key storage.
Alternative Models
● AT25SF041B-SSHD-B: The identical 2.5V-variant silicon shipped in bulk tube packaging for prototyping and low-volume assembly.
● AT25SF041B-SSHB-T: The 2.7V minimum-supply version in tape-and-reel for applications with tighter 3V-rail regulation.
● AT25SF081B-SSHD-T: The 8Mbit density upgrade (1M x 8) sharing the same footprint and command set for doubled storage capacity.
● AT25SF161-SSHD-T: The 16Mbit sibling offering 4x capacity with identical 108MHz Quad-SPI performance for larger firmware images.
● W25X40CLSNIG: The Winbond 4Mbit alternative with 104MHz dual-output SPI operation as a drop-in competitor for cost-sensitive designs.
