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W9725G8KB-25 - Winbond

Description: 256Mb DDR2 SDRAM 800MHz WBGA60

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PCB Footprints
W9725G8KB-25 - Winbond PCB footprint - BGA - BGA - VFBGA - 60_2024
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3D Models
W9725G8KB-25 - Winbond  - 3D model - BGA - VFBGA - 60_2024
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W9725G8KB-25 Details

  • Manufacturer Part Number:

    W9725G8KB-25

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    BGA

  • Package Description:

    WBGA-60

  • Pin Count:

    60

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.24

  • Manufacturer:

    Winbond Electronics Corp

  • YTEOL:

    4

  • Access Mode:

    FOUR BANK PAGE BURST

  • Access Time-Max:

    0.4 ns

  • Additional Feature:

    AUTO/SELF REFRESH

  • Clock Frequency-Max (fCLK):

    400 MHz

  • I/O Type:

    COMMON

  • Interleaved Burst Length:

    4,8

  • JESD-30 Code:

    R-PBGA-B60

  • Length:

    12.5 mm

  • Memory Density:

    268435456 bit

  • Memory IC Type:

    DDR2 DRAM

  • Memory Width:

    8

  • Number of Functions:

    1

  • Number of Ports:

    1

  • Number of Terminals:

    60

  • Number of Words:

    33554432 words

  • Number of Words Code:

    32000000

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    85 °C

  • Organization:

    32MX8

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TFBGA

  • Package Equivalence Code:

    BGA60,9X12,32

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Refresh Cycles:

    8192

  • Seated Height-Max:

    1.2 mm

  • Self Refresh:

    YES

  • Sequential Burst Length:

    4,8

  • Standby Current-Max:

    0.045 A

  • Supply Current-Max:

    0.15 mA

  • Supply Voltage-Max (Vsup):

    1.9 V

  • Supply Voltage-Min (Vsup):

    1.7 V

  • Supply Voltage-Nom (Vsup):

    1.8 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    BOTTOM

  • Time@Peak Reflow Temperature-Max (s):

    NOT SPECIFIED

  • Width:

    8 mm

W9725G8KB-25 Frequently Asked Questions (FAQs)

  • The recommended operating temperature range for the W9725G8KB-25 is -40°C to 85°C, but it can also operate in an extended temperature range of -40°C to 105°C with some performance degradation.
  • The power-up sequence for the W9725G8KB-25 is critical. It's recommended to power up the VCCQ pin first, followed by the VCC pin, and then the input signals. This ensures proper initialization and prevents latch-up or other issues.
  • The W9725G8KB-25 supports a maximum clock frequency of 166 MHz, but it's recommended to operate at a frequency of 133 MHz or lower for optimal performance and reliability.
  • To implement self-refresh mode on the W9725G8KB-25, you need to assert the SREF pin low and ensure that the clock signal is stopped. This mode reduces power consumption and helps with power management.
  • The ZQ pin on the W9725G8KB-25 is used for calibration and is connected to a 240Ω ±1% resistor to VSS. This pin helps to calibrate the output impedance of the device and ensures proper signal integrity.

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W9725G8KB-25 Overview

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