Description:

The NTE955 series timing circuit is a highly stable controller capable of producing accurate time de lays, or oscillation. Additional terminals are provided for triggering or resetting if desired. In time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling wave forms, and the output structure can source or sink up to 200mA or drive TTL circuits.

Features:

Direct Replacement for 555 Timers

Timing from Microseconds through Hours

Operates in Both Astable and Monostable Modes

Adjustable Duty Cycle

High Current Output Can Source or Sink 200mA

Output and Supply TTL Compatible TTL

Temperature Stability of 0.005 per °C

Normally “ON” or Normally “OFF” Output

Available in Three Types:

NTE955M – 8–Lead DIP

NTE955S – 8–Lead SIP

NTE955SM – SOIC–8 (Surface Mount)

Applications:

Precision Timing

Pulse Generation

Sequential Timing

Time Delay Generation

Pulse Width Modulation

Pulse Position Modulation

Linear Ramp Generator