SE555DG4 Clock Timing & Frequency Management by Texas Instruments

PRECISION TIMER SINGLE 18V 8-SOIC

Semiconductors - ICs>Clock Timing & Frequency Management>Timers Oscillators & Pulse Generators

Status:	Unknown
Series:	-
RoHS:	Unknown

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These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable 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 twothirds 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 flipflop 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 output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.

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Specifications

Frequency	-
Supply Voltage Min	4.5V
Supply Voltage Max	18V
Digital IC Case	SOIC
No. of Pins	8Pins
Operating Temperature Min	-55°C
Operating Temperature Max	125°C
Product Range	-

Alternative Descriptions

PRECISION TIMER, SINGLE, 18V, 8-SOIC | element14

Standard Timer Single 8-Pin SOIC Tube | Holdelec

Precision Timer, Single, 18V, 8-Soic | Newark Electronics

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The SE555DG4 is listed under Semiconductors - ICs > Clock Timing & Frequency Management > Timers Oscillators & Pulse Generators.

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