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Quartz Crystal Oscillator ICs

Quartz Crystal Oscillator

  • Operating Voltage (3.0 to 6.0V)
  • Maximum Oscillation Frequency (50MHz)
  • Low Operating Current
  • High Fan-out (TTL 10)
  • 3-state Output Buffer
  • Selected Frequency Output (mask option) (Only one frequency out of f0, f0/2, f0/4 and f0/8 output)
  • Oscillation Capacitors Cg and Cd on-chip
  • Oscillation and/or Output Stand-by Function
  • C-MOS Technology
  • Package Outline (CHIP/EMP8)
General Description
The NJU6318 series is a C-MOS quartz crystal oscillator which consists of an oscillation amplifier, 3-stage divider and 3-state output buffer. The oscillation frequency is as wide as up to 50MHz and the symmetry of 45-55% is realized over full oscillation frequency range. The oscillation amplifier incorporates feed-back resistance and oscillation capacitors (Cg, Cd), therefore, it requires no external component except quartz crystal. The 3-stage divider generates f0, f0/2, f0/4 and f0/8 and only one frequency selected by internal circuits is output. The 3-stage output buffer is TTL compatible and capable of 10 TTL driving. And the input level of CONT ̄ terminal is also TTL compatible.
Part No.Output FrequencyInternal ConnectCgCd
NJU6318A f0Connected A Line23pF 23pF
NJU6318B f0/2 Connected B Line23pF 23pF
NJU6318C f0/4 Connected C Line23pF 23pF
NJU6318D f0/8 Connected D Line23pF 23pF
NJU6318W f0Connected A Line12.5pF 12.5pF
NJU6318P f0Connected A LineNO NO
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
8Sn2Bi76YesYesYesNon dry pack1
Sample & Buy
Part NumberPackagesStatusPacking SpecificationSampleBuy