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Product Cover Texas Instruments NE555P IC Single Precision Timer (Pack of 12)

Texas Instruments NE555P IC Single Precision Timer (Pack of 12)

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Timing From Microseconds to Hours

Astable or Monostable Operation

TTL-Compatible Output Can Sink or Source Up to 200 mA

Adjustable Duty Cycle

Operation is specified for supplies of 5 V to 15 V

Binding:

Personal Computers

Brand:

Texas Instruments

EAN:

0190073997779

Label:

Texas Instruments

Manufacturer:

Texas Instruments

Model:


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The NE555 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 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 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.