NE555D Part Information

Details for NE555D by STMicroelectronics

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

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Part Specifications

Frequency 500kHz
Supply Voltage Min 4.5V
Supply Voltage Max 16V
Digital IC Case SOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (17-Dec-2015)
Base Number 555
Clock External Input No
Device Marking NE555D
No. of Timers 1
Operating Mode Astable Monostable
Operating Temperature Range 0°C to +70°C
Supply Voltage Range 4.5V to 16V
Termination Type Surface Mount Device
RoHS Compliant

Details for NE555D by Texas Instruments

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

Part Description

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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Part Features

  • Adjustable Duty Cycle
  • Astable or Monostable Operation
  • On Products Compliant to MIL-PRF-38535,
  • TTL-Compatible Output Can Sink or Source Up to 200 mA
  • Timing From Microseconds to Hours

Part Specifications

Frequency 500kHz
Supply Voltage Min 4.5V
Supply Voltage Max 16V
Digital IC Case SOIC
No. of Pins 8Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 555
Clock External Input No
Device Marking NE555D
IC Generic Number 555
IC Temperature Range Commercial
Logic Function Number 555
No. of Timers 1
Operating Frequency Max 0.5MHz
Operating Mode Astable Monostable
Operating Temperature Range 0°C to +70°C
Supply Voltage Range 4.5V to 16V
RoHS Compliant

Alternative Part Descriptions

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  • Single Precision Timer | Texas Instruments
  • Timer IC [Texas Instruments] NE555D Timer IC | Distrelec

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