Quartz Crystal Oscillator

Data Sheet


  • Operating Voltage (3.0 to 6.0V)
  • Maximum Oscillation Frequency (50MHz)
  • Low Operating Current
  • High Fan-out (LSTTL 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/MSOP8(VSP8)*MEET JEDEC MO-187-DA)

General Description

The NJU6321 series is a C-MOS quartz crystal oscillator which consists of an oscillation amplifier, 3-stage divider, output frequency selector 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 outputs f0, f0/2, f0/4 and f0/8 to the output frequency selector and it determined one output frequency according to the combination of two input-signal. The 3-stage output buffer is C-MOS compatible and capable of 10 LSTTL driving.


Part No. Cg Cd Osc. Stop (Tr)
NJU6321A 21pF 23pF Yes

Package Information

Part Number Package Outline PLP Pins Terminal Finish Weight(mg) (Reference) Reflow soldering Flow soldering Iron soldering Packing Condition MSL Solder Foot Print
NJU6321E EMP8 - 8 Sn2Bi 76 Yes Yes Yes Non dry pack 1
NJU6321R MSOP8(VSP8) - 8 Sn2Bi 21 Yes Yes Yes Non dry pack 1

Sample & Buy

Part Number Packages Status Packing Specification Sample Buy
NJU6321XE EMP8 (Active) Contact Us Stock Check
NJU6321XR MSOP8(VSP8) (Active) Contact Us Stock Check