Cissoid Oscillators & Timers

CISSOID at NAC Semi · Timing

Oscillators & Timers

Explore high-temperature crystal clock generators and 555 timers. Compare operating temperatures and supply requirements, then open a product page for detailed specifications and ordering information.

3 product familiesCrystal clock generation555 timers
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Compare Product Families

Compare CHT-555 and CMT-555 timers with the CG50LP crystal clock generator. CHT-555 and CG50LP operate up to +225°C; CMT-555 operates up to +175°C. Consult each product datasheet for full operating conditions.

3 oscillator and timer families
CHT-555555 timer−55°C to +225°C5 V (±10%)
CG50LPCrystal clock generator−55°C to +225°C5 V ±10%: 1–50 MHz; 3.3 V ±10%: 1–30 MHz
CMT-555555 timer−55°C to +175°C5 V (±10%)
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Product Families

555 timer

CHT-555

  • Operating junction temperature: −55°C to +225°C
  • Supply voltage: 5 V (±10%)
  • Timing range: Microseconds to hours, set by external components
  • Timing modes: Monostable (single pulse) and astable (oscillation)
  • Package: Ceramic DIL8
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Crystal clock generator

CG50LP

  • Operating junction temperature: −55°C to +225°C
  • Supply and crystal frequency: 5 V ±10%: 1–50 MHz; 3.3 V ±10%: 1–30 MHz
  • External clock input: DC to 50 MHz; see datasheet for supply-dependent limits
  • Frequency-divider ratios: 1, 2, 4, 8, 16, 32, 256 and 512
  • Output driver: Programmable 8 mA or 16 mA; high-impedance output control
  • Crystal driver: Programmable drive strength
  • Integrated components: Selectable 10 pF and/or 20 pF capacitors
  • Power control: Enable/disable and standby controls
  • Package: Hermetically sealed ceramic TDFP16
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555 timer

CMT-555

  • Operating junction temperature: −55°C to +175°C
  • Supply voltage: 5 V (±10%)
  • Timing range: Microseconds to hours, set by external components
  • Timing modes: Monostable (single pulse) and astable (oscillation)
  • Package: Plastic SOIC8
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Engineering & distribution support

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