31 August 2023

CISSOID at The Battery Show North America in Novi, Michigan, on 12-14 Sept 2023.

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Download datasheet


555 Timer

The CHT-555 is a high-temperature, low-power, highly stable device for generating accurate time delays or oscillations, with enhanced capabilities compared to the well known NE555.

Typical performances

  • 5V Power Supply
  • Temperature range: -55°C to +175°C
  • Timing from microsecond to hours
  • Monostable and bistable mode



  • Well logging, automotive, aeronautics & aerospace
  • Precision timing
  • Pulse generation
  • Pulse width and pulse position modulation

If you need support for your high temperature design, contact Cissoid.

Download CISSOID's Altium Library for IC symbols and package footprints. For installation, read the related Application Note.


CHT-555: astable configuration CHT-555: monostable configuration
Astable configuration Monostable configuration


Ordering information

Product name Ordering reference Package Marking
CMT-555 CMT-555-PSOIC8-T Plastic SOIC8 CMT-555