NTE978 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit Dual Timer

NTE978/NTE978C/NTE978SM
Integrated Circuit
Dual Timer
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
V_CC and GND. The circuits may be triggered and reset on falling waveforms. The output structures
may sink or source 200mA.
Features:
D Direct Replacement for 556 Timers
D Replaces Two 555 Timers
D Timing from Microseconds through Hours
D Operates in both Astable and Monostable Modes
D Adjustable Duty Cycle
D Output can Source or Sink 200mA
D Output and Supply TTL Compatible
D Temperature Stability better than 0.005% per °C
D Normally On and Normally Off Output
D Available in Three Types:
NTE978 14–Lead DIP
NTE978C 14–Lead DIP (CMOS)
NTE978SM SOIC–14 (Surface Mount)
Applications:
D Precision Timing
D Pulse Generation
D Sequential Timing
D Time Delay Generation
D Pulse Width Modulation
D Pulse Position Modulation
D Linear Ramp Generator
Absolute Maximum Ratings:
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18V
Power Dissipation (Note 1), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1620mW
Operating Temperature Range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Lead Temperature (During Soldering, 10sec Max), T_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Note 1. For operating at elevated temperaturesthe device must be derated based on a +150°C maxi-
mum junction temperature and a thermal resistance of +77°C/W for NTE978 and NTE978C
and +110°C/W for NTE978SM.