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AT25SF321B-SSHB-B - Renesas Electronics

Description: The AT25SF321B 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. Universally compatible pinout and comma

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AT25SF321B-SSHB-B - Renesas Electronics PCB footprint - Small Outline Packages - Small Outline Packages - 8S1, 8-lead (150 mil Narrow Body)
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AT25SF321B-SSHB-B - Renesas Electronics  - 3D model - Small Outline Packages - 8S1, 8-lead (150 mil Narrow Body)
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AT25SF321B-SSHB-B Details

  • Manufacturer Part Number:

    AT25SF321B-SSHB-B

  • Brand Name:

    Renesas

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC-N

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.51

  • Factory Lead Time:

    18 Weeks

  • Manufacturer:

    Renesas Electronics Corporation

  • YTEOL:

    5.5

  • Clock Frequency-Max (fCLK):

    133 MHz

  • Data Retention Time-Min:

    20

  • Endurance:

    100000 Write/Erase Cycles

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e4

  • Length:

    4.83 mm

  • Memory Density:

    33554432 bit

  • Memory IC Type:

    FLASH

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Number of Words:

    4194304 words

  • Number of Words Code:

    4000000

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Organization:

    4MX8

  • Output Characteristics:

    3-STATE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Parallel/Serial:

    SERIAL

  • Peak Reflow Temperature (Cel):

    260

  • Programming Voltage:

    3 V

  • Seated Height-Max:

    1.75 mm

  • Serial Bus Type:

    QSPI

  • Standby Current-Max:

    0.000005 A

  • Supply Current-Max:

    0.012 mA

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    2.7 V

  • Supply Voltage-Nom (Vsup):

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Type:

    NOR TYPE

  • Width:

    3.9 mm

  • Write Protection:

    HARDWARE/SOFTWARE

AT25SF321B-SSHB-B Frequently Asked Questions (FAQs)

  • The AT25SF321B-SSHB-B has a minimum of 100,000 erase cycles, but the actual number of cycles may vary depending on the usage and operating conditions.
  • The hold pin (HOLD#) should be pulled high during power-up and power-down to prevent any unwanted writes or erases. It's recommended to connect a pull-up resistor to the HOLD# pin to ensure it remains high during these transitions.
  • The recommended clock frequency for the SPI interface is up to 50 MHz, but it can operate at frequencies up to 100 MHz with some limitations. It's essential to consult the datasheet and application notes for specific guidance on clock frequency and timing requirements.
  • The WP# pin should be pulled high during normal operation to allow writes and erases. If the WP# pin is pulled low, the device will be in a protected state, and writes and erases will be inhibited.
  • The Deep Power-Down (DPD) mode is a low-power state that reduces the device's power consumption to a minimum. It's useful for applications where the device needs to be in a low-power state for an extended period. However, it's essential to note that the DPD mode may affect the device's performance and wake-up time.

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