www.fairchildsemi.com
KA556
Dual Timer
Features
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Replaces Two KA555 Timers
Operates in Both Astable And Monostable Modes
High Output Current
TTL Compatible
Timing From Microsecond To Hours
Adjustable Duty Cycle
Temperature Stability Of 0.005% Per
°C
Description
The KA556 series dual monolithic timing circuits are a
highly stable controller capable of producing accurate time
delays or oscillation. The KA556 is a dual KA555. Timing is
provided an external resistor and capacitor for each timing
function. The two timers operate independently of each
other, sharing only V
CC
and ground. The circuits may be
triggered and reset on falling waveforms. The output
structures may sink or source 200mA.
14-DIP
14-SOP
Applications
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Precision Timing
Pulse Shaping
Pulse Width Modulation
Frequency Division
Traffic Light Control
Sequential Timing
Pulse Generator
Time Delay Generator
Touch Tone Encoder
Tone Burst Generator
1
1
Internal Block Diagram
Rev. 1.0.0
©2001 Fairchild Semiconductor Corporation
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
