NE555DR Clock Timing & Frequency Management by Texas Instruments


Status: Unknown
Series: xx555 Precision Timers
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

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.

Where to Buy

Prices starting from US$0.05

Distributor Stock
Logo for RS
from US$0.15
in stock
Buy Now
Logo for Texas Instruments
Texas Instruments
from US$0.05
in stock
Buy Now
Logo for element14
from US$0.10
in stock
Buy Now
Logo for Farnell
from US$0.08
in stock
Buy Now
Logo for Transfer Multisort Elektronik
Transfer Multisort Elektronik
from US$0.12
in stock
Buy Now
Logo for Micros
from US$0.09
in stock
Buy Now
Logo for Schukat Electronic
Schukat Electronic
from US$0.09
in stock
Buy Now
Logo for Chip One Stop
Chip One Stop
from US$0.20
in stock
Buy Now
Logo for Newark Electronics
Newark Electronics
from US$0.18
in stock
Buy Now
Logo for Kruse
in stock
Buy Now


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 xx555 Precision Timers
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Base Number 555
Clock External Input No
Device Marking NE555D
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

Alternative Descriptions

Single Precision Timer | Texas Instruments
IC: peripheral circuit | Transfer Multisort Elektronik
NE555DR, Timer Circuits | RS
Precision Timer Bipolar | Micros
IC OSC SGL TIMER 100KHZ 8-SOIC | Schukat Electronic
Timer Single Precision, Soic8, 555 | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a NE555DR?

Additional datasheets, footprints and schematics for NE555DR are listed on our Part Details page. You can also find images and similar parts to NE555DR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NE555DR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NE555DR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NE555DR fall under?

The NE555DR is listed under Semiconductors - ICs > Clock Timing & Frequency Management > Timers Oscillators & Pulse Generators.

Can I view similar or alternative parts?

You can view similar parts to NE555DR when available in the Timers Oscillators & Pulse Generators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NE555DR you can contact the distributor directly for product support, shipping queries etc.

Is the NE555DR RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for NE555DR have stock available?

Authorised distributors including Texas Instruments, element14, Farnell, Transfer Multisort Elektronik and RS have stock available or on a lead time for NE555DR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for NE555DR often in real-time on the comparison pages.

What if I can't find stock of NE555DR?

You can fill out our help required form which you can use to request a quote for NE555DR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.