NE556

Philips Semiconductors Linear Products Product specification Dual timer NE/SA/SE556/NE556-1 DESCRIPTION Both the 556 and 556-1 Dual Monolithic timing circuits are highly stable controllers capable of producing accurate time delays or oscillation. The 556 and 556-1 are a dual 555. 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 ground. The circuits may be triggered and reset on falling waveforms. The output structures may sink or source 200mA. PIN CONFIGURATION D, F, N Packages DISCHARGE THRESHOLD CONTROL VOLTAGE RESET 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC DISCHARGE THRESHOLD CONTROL VOLTAGE RESET OUTPUT TRIGGER FEATURES Turn-off time less than 2µs (556-1) Maximum operating frequency >500kHz (556-1) Timing from microseconds to hours Replaces two 555 timers Operates in both astable and monostable modes High output current Adjustable duty cycle TTL compatible Temperature stability of 0.005%/°C SE556-1 compliant to MIL-STD or JAN APPLICATIONS OUTPUT TRIGGER GND Precision timing Sequential timing Pulse shaping Pulse generator Missing pulse detector Tone burst generator Pulse width modulation Time delay generator Frequency division Touch-Tone®encoder Industrial controls Pulse position modulation Appliance timing Traffic light control BLOCK DIAGRAM 1 DISCHARGE 2 COMP CONTROL VOLTAGE RESET 3 4 COMP 11 10 RESET CONTROL VO...