UTCLM556

LINEAR INTEGRATED CIRCUIT

1

QW-R106-004,A

DUAL TIMER

DESCRIPTION

The UTC LM556 dual monolithic circuit is a highly

stable controller capable of producing accurate delays

or oscillation. The UTC LM556 is the dual of UTC

NE555; timing is provided an external resistor and

capacitor for each function. The two timers operate

independently of each other, sharing only Vcc and

GND. The circuits may be triggered and reset on falling

wave forms. The output structures may sink or source

200mA.

FEATURES

*High current driver capability(=200mA)

*Adjustable duty cycle

*Timing from

µSec to Hours

*Temperature stability of 0.005%/

°C

*TTL compatible

*Operates in both Astable and Monostable modes

DIP-14

SOP-14

APPLICATIONS

*Precision timing.

*Pulse width modulation.

*Pulse generator, shaping.

*Traffic light control.

*Time delay generator.

*Touch tone encoder.

*Sequential timing.

*Tone burst generator.

BLOCK DIAGRAM