Description:

The NTE978 series dual timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. The NTE978 is a dual NTE955. Timing is provided by an external resistor and capacitor for each timing function. The two timers operate independently of each other sharing only VCC and GND. The circuits may be triggered and reset on falling waveforms. The output structures may sink or source 200mA.

Features:

Direct Replacement for 556 Timers

Replaces Two 555 Timers

Timing from Microseconds through Hours

Operates in both Astable and Monostable Modes

Adjustable Duty Cycle

Output can Source or Sink 200mA

Output and Supply TTL Compatible

Temperature Stability better than 0.005% per °C

Normally On and Normally Off Output

Available in Three Types:

NTE978 14–Lead DIP

NTE978C 14–Lead DIP (CMOS)

NTE978SM SOIC–14 (Surface Mount)

Applications:

Precision Timing

Pulse Generation

Sequential Timing

Time Delay Generation

Pulse Width Modulation

Pulse Position Modulation

Linear Ramp Generator