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AS4C128M8D2A-25BCN - Alliance Memory

Description: DRAM DDR2, 1G, 128M x 8, 1.8V, 60-ball BGA, 400 MHz, Commercial Temp A-Die - Tray

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PCB Footprints
AS4C128M8D2A-25BCN - Alliance Memory PCB footprint - BGA - BGA - FBGA-60
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AS4C128M8D2A-25BCN - Alliance Memory  - 3D model - BGA - FBGA-60
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AS4C128M8D2A-25BCN Details

  • Manufacturer Part Number:

    AS4C128M8D2A-25BCN

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    FBGA-60

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.32.00.32

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    Alliance Memory Inc

  • YTEOL:

    4

  • Access Mode:

    MULTI BANK PAGE BURST

  • Access Time-Max:

    0.4 ns

  • Additional Feature:

    AUTO/SELF REFRESH

  • JESD-30 Code:

    R-PBGA-B60

  • Length:

    10 mm

  • Memory Density:

    1073741824 bit

  • Memory IC Type:

    DDR2 DRAM

  • Memory Width:

    8

  • Moisture Sensitivity Level:

    3

  • Number of Functions:

    1

  • Number of Ports:

    1

  • Number of Terminals:

    60

  • Number of Words:

    134217728 words

  • Number of Words Code:

    128000000

  • Operating Mode:

    SYNCHRONOUS

  • Operating Temperature-Max:

    85 °C

  • Organization:

    128MX8

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TFBGA

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, THIN PROFILE, FINE PITCH

  • Seated Height-Max:

    1.2 mm

  • Self Refresh:

    YES

  • Supply Voltage-Max (Vsup):

    1.95 V

  • Supply Voltage-Min (Vsup):

    1.7 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.8 mm

  • Terminal Position:

    BOTTOM

  • Width:

    8 mm

AS4C128M8D2A-25BCN Frequently Asked Questions (FAQs)

  • The maximum operating temperature range for the AS4C128M8D2A-25BCN is 0°C to 70°C (commercial grade) and -40°C to 85°C (industrial grade).
  • The AS4C128M8D2A-25BCN requires a refresh cycle every 64ms (tREF) to maintain data integrity. You can use a refresh counter to keep track of the refresh cycles and issue an AUTO REFRESH command (CBR) to refresh the entire memory array.
  • The minimum clock cycle time for the AS4C128M8D2A-25BCN is 5ns (200MHz clock frequency).
  • No, the AS4C128M8D2A-25BCN is designed to operate at 2.5V ± 0.2V power supply. Using a 1.8V power supply may not guarantee proper operation and may damage the device.
  • During power-up, the AS4C128M8D2A-25BCN requires a minimum of 200us delay after VDD reaches 2.3V before applying clock signals. During power-down, ensure that the clock signals are stopped before VDD falls below 2.3V.

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AS4C128M8D2A-25BCN Overview

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