GENERAL PURPOSE DUAL BIPOLAR TIMERS

. LOW TURN OFF TIME
. MAXIMUM OPERATING FREQUENCY
GREATER THAN 500kHz
. TIMING FROM MICROSECONDS TO
HOURS
. OPERATES IN BOTH ASTABLE AND
MONOSTABLE MODES
. HIGH OUTPUT CURRENT CAN SOURCE
OR SINK 200mA
. ADJUSTABLE DUTY CYCLE
. TTL COMPATIBLE
. TEMPERATURE STABILITY OF 0.005% PER°C

DESCRIPTION
The NE556 dual monolithic timing circuit is a highly
stable controller capable of producing accurate
time delays or oscillation. In the time delay mode
of operation, the time is precisely controlled by
one external resistor and capacitor. For a stable
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
waveforms, and the output structure can source or
sink up to 200mA.