NE555 timer
E381583
The NE555 timer is a widely used integrated circuit that provides precise timing, pulse generation, and oscillator functions in countless electronic circuits.
All labels observed (4)
| Label | Occurrences |
|---|---|
| NE555 timer canonical | 2 |
| LMC555 | 1 |
| NE555 | 1 |
| NE555 (commercial) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3724798 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: NE555 timer Context triple: [Signetics, notableProduct, NE555 timer]
-
A.
µA741
µA741 is a classic general-purpose operational amplifier integrated circuit widely used in analog electronics for signal conditioning, filtering, and amplification.
-
B.
Rossi coincidence circuit
The Rossi coincidence circuit is an early electronic device developed for cosmic-ray research that detects and records simultaneous signals from multiple radiation detectors to identify true particle events.
-
C.
HP 200A audio oscillator
The HP 200A audio oscillator was Hewlett-Packard’s first commercial product, a pioneering low-distortion audio signal generator that helped launch the company and became widely used in electronics testing, including by Walt Disney Studios.
-
D.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
E.
BJT
BJT is an abbreviation for Beijing Time, the standard time used throughout mainland China.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: NE555 timer Target entity description: The NE555 timer is a widely used integrated circuit that provides precise timing, pulse generation, and oscillator functions in countless electronic circuits.
-
A.
µA741
µA741 is a classic general-purpose operational amplifier integrated circuit widely used in analog electronics for signal conditioning, filtering, and amplification.
-
B.
Rossi coincidence circuit
The Rossi coincidence circuit is an early electronic device developed for cosmic-ray research that detects and records simultaneous signals from multiple radiation detectors to identify true particle events.
-
C.
HP 200A audio oscillator
The HP 200A audio oscillator was Hewlett-Packard’s first commercial product, a pioneering low-distortion audio signal generator that helped launch the company and became widely used in electronics testing, including by Walt Disney Studios.
-
D.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
E.
BJT
BJT is an abbreviation for Beijing Time, the standard time used throughout mainland China.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
integrated circuit
ⓘ
monolithic timing circuit ⓘ timer IC ⓘ |
| application |
LED flasher
ⓘ
PWM motor speed control ⓘ frequency divider ⓘ sequential timer ⓘ tone generator ⓘ watchdog timer ⓘ |
| contains |
SR flip-flop
ⓘ
discharge transistor ⓘ two comparators ⓘ voltage divider ⓘ |
| designer | Hans R. Camenzind NERFINISHED ⓘ |
| function |
PWM generator
ⓘ
astable multivibrator ⓘ bistable latch ⓘ monostable multivibrator ⓘ oscillator ⓘ pulse generator ⓘ time delay generator ⓘ |
| hasPin |
CTRL
ⓘ
DISCH ⓘ GND ⓘ OUT ⓘ RESET ⓘ THRES ⓘ TRIG ⓘ VCC ⓘ |
| hasVariant |
555 timer IC
ⓘ
surface form:
LM555
555 timer IC ⓘ
surface form:
LMC555
NE556 ⓘ NE558 ⓘ SE555 ⓘ 555 timer IC ⓘ
surface form:
TLC555
|
| introducedInYear | 1972 ⓘ |
| logicFamily | bipolar ⓘ |
| manufacturer | Signetics ⓘ |
| maxOutputCurrent | 200 mA ⓘ |
| notableProperty |
high output drive capability
ⓘ
low cost ⓘ ubiquitous in hobby electronics ⓘ wide supply range ⓘ |
| outputStageType | bipolar transistor totem-pole ⓘ |
| packageType |
DIP-8
ⓘ
SOIC-8 ⓘ |
| pinCount | 8 ⓘ |
| referenceVoltageFraction |
1/3 VCC
ⓘ
2/3 VCC ⓘ |
| supplyVoltageRange | 4.5 V to 16 V ⓘ |
| temperatureRangeVariant |
NE555 timer
self-linksurface differs
ⓘ
surface form:
NE555 (commercial)
SE555 (military) ⓘ |
| typicalSupplyVoltage |
12 V
ⓘ
5 V ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: NE555 timer Description of subject: The NE555 timer is a widely used integrated circuit that provides precise timing, pulse generation, and oscillator functions in countless electronic circuits.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
LMC555
this entity surface form:
NE555
this entity surface form:
NE555 (commercial)