Product Summary

The NE555 is a precision timing circuit capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

Parametrics

NE555 absolute maximum ratings: (1)VCC Supply voltage: 18V; (2)VI Input voltage CONT, RESET, THRES, TRIG: VCC V; (3)IO Output current: ±225 mA; (4)θJA Package thermal impedance D package: 97℃/W; P package: 85℃/W; PS package: 95℃/W; PW package 149℃/W; (5)θJC Package thermal impedance FK package: 5.61℃/W; JG package 14.5℃/W; (6)TJ Operating virtual junction temperature: 150℃; (7)Tstg Storage temperature range: 150℃.

Features

NE555 features: (1)Timing From Microseconds to Hours; (2)Adjustable Duty Cycle; (3)Astable or Monostable Operation; (4)TTL-Compatible Output Can Sink or Source up to 200 mA.

Diagrams

NE555 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
NE555
NE555
Other

Data Sheet
Negotiable 
NE555C
NE555C
Other

Data Sheet
Negotiable 
NE555D
NE555D
STMicroelectronics
Timers & Support Products General Purp Single
Data Sheet
0-1: $0.43
1-10: $0.36
10-100: $0.27
100-250: $0.24
NE555DG4
NE555DG4
Texas Instruments
Timers & Support Products SINGLE PRECISION TIMER
Data Sheet
0-1: $0.24
1-25: $0.19
25-100: $0.14
100-250: $0.10
NE555DR
NE555DR
Texas Instruments
Timers & Support Products Precision
Data Sheet
0-1: $0.33
1-25: $0.19
25-100: $0.15
100-250: $0.11
NE555DRE4
NE555DRE4
Texas Instruments
Timers & Support Products Precision
Data Sheet
0-1: $0.22
1-25: $0.15
25-100: $0.12
100-250: $0.10
NE555DT
NE555DT
STMicroelectronics
Timers & Support Products General Purp Single
Data Sheet
0-1: $0.21
1-10: $0.16
10-100: $0.13
100-250: $0.11
NE555DX
NE555DX
Fairchild Semiconductor
Timers & Support Products Single Timer
Data Sheet
Negotiable