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EPROM UV 512K-Bit 64K x 8 120ns 28-Pin FDIPW

M27C512-12F1: ST MICRO
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Jameco Part no. 698226
Manufacturer ST MICRO
Manufacturer no. M27C512-12F1
  RoHS compliant
Catalog 151 , page 6
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512 Kbit (64K x8) UV EPROM

The M27C512 is a 512 Kbit UV (ultra violet erase) EPROM. It is ideally suited for applications where fast turn-around and pattern experimentation are important requirements and is organized as 65536 by 8 bits.

The FDIP28W (window ceramic frit-seal package) has transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure.


  • 5V ± 10% supply voltage in read operation
  • Access time: 120 ns
  • Low power "CMOS" consumption:
       -Active current 30 mA
       -Standby current 100 µA
  • Programming voltage: 12.75 V ± 0.25 V
  • Programming time around 6 s.
  • Electronic Signature
       -Manufacturer code: 20h
       -Device code: 3Dh

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  • Specification Value
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage5.5V
    In System ProgrammabilityIn System|External
    Reprogramming TechniqueUV
    Minimum Operating Temperature0°C
    Maximum Operating Temperature70°C
    Screening LevelCommercial
    MountingThrough Hole
    Specification Value
    Product Width13.36mm(Max)
    Product Height4.5mm(Max)
    Product Length37.34mm(Max)
    Product TypeEPROM
    Interface TypeParallel
    Output Enable Access Time50ns
    Programming Voltage12.75V
    Maximum Operating Current50mA
    Maximum Random Access Time120ns
    Minimum Operating Supply Voltage4.5V

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