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Features

  • Universally compatible pinout and command set
  • Standard block architecture
  • Supports Dual I/O, Quad I/O operation

Description

The AT25SF641 is a member of our standard class code and data storage solutions designed for 3V systems in which program code is shadowed from Flash memory into embedded or external RAM for execution.

The architecture includes erase block sizes that are optimized to meet the needs of today's code and data storage applications and three security register pages for unique device serialization, system-level Electronic Serial Number (ESN) storage, locked key storage, etc.

Part NumberStatusSamplesStockPackageCarrier Type
AT25SF641-DWFNRNDN/AOut of StockSee Wafer-Die Solution Menu
AT25SF641-MHB-TNRNDN/AOut of StockDFNTape & Reel
AT25SF641-SUB-TNRNDN/AOut of StockSOIC-WTape & Reel

Support Communities

  1. FIT/MTBF for AT25SF641B-SHB-T

    Hello,   Can you help me with the reliability report of the AT25SF641B-SHB-T flash? Or at least the FIT/MTBF number of it.

    Nov 12, 2021
  2. AT25SF641B-SHB-T chip erase timing

    I am currently evaluating the AT25SF641B-SHB-T device as replacement for other SPI flash device. I found that timing for chip erase operation (command 0xC7) is much much faster than specified by datasheet ( DS-AT25SF641B-191D-122020.pdf ) The datasheet states on page 51 a typical chip erase time ...

    Jan 10, 2022
  3. AT25SF641B: Flash Read always returning 0xFF

    Hello,  The AT25SF641B device I am having issues with is interfaced with a TMS320F28379D. Please see C code below.  The code performs the flash operations as defined in the Operations[] array every 10ms (FlashTestStateMachine_Task() is called every 10ms.  This is verified by noticing u16FlashEraseCounter counts up to 2999 during ...

    May 11, 2024
View All Results from Support Communities (5)

Knowledge Base

  1. RA4E1 and RA6E1 microcontrollers don't appear to natively support I2S interface, how are the digital microphones interfaced ?

    The I2S is emulated by using a combination of SPI and timer peripherals on RA MCU.

    Jun 28, 2022
  2. RA Family: How are signals from analog microphones amplified ?

    Analog microphones pass through Renesas READ2302GSP OPAMP before connecting to analog interface on the microcontroller.

    Jun 28, 2022
  3. RA Family: Do I need to use an external USB-to-UART converter to communicate with the microcontroller ?

    No, the J-Link OB chip on the VOICE kit provides USB-to-UART functionality alongside standard J-Link debugging capabilities.

    Jun 28, 2022
View All Results from Knowledge Base (8)
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