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USA555

Unisonic Technologies
Part Number USA555
Manufacturer Unisonic Technologies
Description PRECISION TIMERS
Published Mar 1, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD USA555 LINEAR INTEGRATED CIRCUIT PRECISION TIMERS  DESCRIPTION The UTC USA555 monol...
Datasheet PDF File USA555 PDF File

USA555
USA555

Overview
UNISONIC TECHNOLOGIES CO.
, LTD USA555 LINEAR INTEGRATED CIRCUIT PRECISION TIMERS  DESCRIPTION The UTC USA555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation.
In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network.
In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.
The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC.
These levels can be altered by use of the control-voltage terminal.
When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high.
If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low.
The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle.
When RESET goes low, the flip-flop is reset, and the output goes low.
When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.
The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200mA.
Operation is specified for supplies of 5V~15V.
 FEATURES * Astable or monostable operation * Low turn off time * Operates in both astable and monostable modes * Timing from microseconds to hours * Adjustable duty cycle * TTL-compatible output can sink or source up to 200mA  ORDERING INFORMATION Ordering Number Lead Free Halogen Free - USA555G-S08-R USA555L-D08-T USA555G-D08-T Note: xx: Output Voltage, refer to Marking Information.
Package SOP-8 DIP-8 SOP-8 DIP-8 Packing Tape Reel Tube www.
unisonic.
com.
tw Copyright © 2014 Unisonic Technologies Co.
, Ltd 1 of 8 QW-R106-005.
C USA555  MARKING SOP-8 LINEAR INTEGRATED CIRCUIT DIP-8  PIN CONFIGURATION GND 1 T...


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