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555 Timer ICs



X
67451

The 555 timer is a highly stable controller capable of producing accurate time delays or oscillation. The 556 timer combines two 555 timers on a single chip. The 555 can be used in countless applications and has three recognised operating modes. In monostable mode the 555 functions as a one-shot or pulse stretcher. Applications include timers, missing pulse detection and bouncefree switches. In astable mode the 555 can operate as an oscillator. Applications include LED and lamp flashers, pulse generation, logic clocks, tone generation, security alarms and Pulse Width Modulation (PWM). In bistable mode the 555 can operate as a flip-flop or changeover. Applications include bouncefree latched switches. The ICM7555 and ICM7556 are improved versions including lower supply current and a wide supply voltage range.

  • Bipolar and CMOS technologies, CMOS offering lower power consumtion (1mW typ at VDD=5V)
  • TTL logic compatible
  • Through hole and surface mount
  • Choice of leading brands


Product details Hints & Tips

Products
  • NE555 Bipolar Single Timer TI
    82-0336

    (MPN:NE555P)

    NE555 Bipolar Single Timer from TI - incorporating the following features: monostable operating mode, 500kHz operating frequency, 100ns rise time, 100ns fall time, adjustable duty cycle, 5V trigger voltage, 4.5V to 16V supply voltage, 0°C to +70°C, 8-DIP Case. The NE555 monolithi...

    Rohs Pdf

    Code: 82-0336

    Texas Instruments
    1+ 10+ 100+ 500+
    £0.188 £0.146 £0.134 £0.10
    In Stock
    Despatched same day
    Ne555d Single Timer (smd)
    82-0338

    (MPN:NE555D)

    General Purpose Bipolar Timer, Astable, Monostable Operating Mode, 500kHz Operating Frequency, 100ns Rise Time, 100ns Fall Time, Adjustable Duty Cycle, 5V Trigger Voltage, 4.5V to 16V Supply Voltage, 0°C to +70°C, 8-SOIC Case, The NE555 Monolithic Timing Circuit is a Highly Stabl...

    Rohs Pdf

    Code: 82-0338

    ST
    1+ 10+ 100+ 500+
    £0.166 £0.09 £0.08 £0.071
    In Stock
    Despatched same day
    Ts555cn CMOS Timer Dil-8
    82-1048

    (MPN:TS555CN)

    Low Power CMOS Timer, Astable, Monostable Operating Mode, 2.7MHz Operating Frequency, 25ns Rise Time, 20ns Fall Time, 4V Trigger Voltage, 2V to 16V Supply Voltage, 0°C to +70°C, 8-DIP Case, Very Low Power Consumption, High Maximum Astable Frequency, High Output Current Capability...

    Rohs Pdf

    Code: 82-1048

    ST
    1+ 10+ 100+ 500+
    £0.556 £0.416 £0.327 £0.226
    In Stock
    Despatched same day
    Ts555cd CMOS Timer So-8
    82-1050

    (MPN:TLC555CD)

    Low Power CMOS Timer, Astable, Monostable Operating Mode, 2.7MHz Operating Frequency, 25ns Rise Time, 20ns Fall Time, 4V Trigger Voltage, 2V to 16V Supply Voltage, 0°C to +70°C, 8-SOP Case, Very Low Power Consumption, High Maximum Astable Frequency, High Output Current Capability...

    Rohs Pdf

    Code: 82-1050

    ST
    1+ 10+ 100+ 500+
    £0.441 £0.326 £0.259 £0.18
    In Stock
    Despatched same day
    Texas Instruments TLC555CD Timer 2-15V SOIC8
    51-5972

    (MPN:TLC555CD)

    This Texas Instruments TLC555CD has a very low power consumption typically 1 mW when VDD = 5V. It is capable of operation in astable mode. The CMOS output is capable of swinging rail to rail. It has a high output current capability, sinking 100mA and sourcing 10mA. The output is...

    Rohs

    Code: 51-5972

    Texas Instruments
    1+ 25+ 100+ 500+
    £0.255 £0.224 £0.204 £0.184
    Currently out of stock, available to back order
    Stock due in 2+ months
    Texas Instruments NE555P Linear IC Precision Timer DIP8
    51-7529

    (MPN:NE555P)

    This Texas Instruments NE555P has a high output current capability, sinking or sourcing 200mA which is TTL compatible. It is able to operate in astable or monostable mode. The output is fully compatible with CMOS, TTL, and MOS. It uses a single supply from 4.5VDC to 16VDC. It is ...

    Rohs Pdf

    Code: 51-7529

    Texas Instruments
    10+ 25+ 100+ 500+
    £0.143 £0.122 £0.112 £0.102
    In Stock
    Despatched same day
    Texas Instruments SA555P Linear IC Precision Timer DIP8
    51-7531

    (MPN:SA555P)

    This Texas Instruments SA555P has a high output current capability, sinking or sourcing 200mA which is TTL compatible. It is able to operate in astable or monostable mode. The output is fully compatible with CMOS, TTL, and MOS. It uses a single supply from 4.5VDC to 16VDC. It is ...

    Rohs Pdf

    Code: 51-7531

    Texas Instruments
    1+ 25+ 100+ 500+
    £0.286 £0.255 £0.235 £0.214
    Stocked in European warehouse
    Despatched 5-7 work days
    Texas Instruments TLC556CN Linear IC Dual LinCMOS™ Timer DIP14
    51-7532

    (MPN:TLC556CN)

    This Texas Instruments TLC556CN has a very low power consumption typically 2mW when VDD = 5V. It is capable of operation in astable mode. The CMOS output is capable of swinging rail to rail. It has a high output current capability, sinking 100mA and sourcing 10mA. The output is f...

    Rohs Pdf

    Code: 51-7532

    Texas Instruments
    1+ 25+ 100+ 500+
    £0.551 £0.49 £0.439 £0.398
    In Stock
    Despatched same day
    Tlc555cp CMOS L/pwr Timer
    82-0342

    (MPN:TLC555CP)

    LinMOS 555 Timer, Astable Operating Mode, 2.1MHz Operating Frequency, 20ns Rise Time, 15ns Fall Time, 50% Duty Cycle, 1.66V Trigger Voltage, 2V to 15V Supply Voltage, 0°C to +70°C, 8-DIP Case, Capable of Operation in Astable Mode, CMOS Output Capable of Swinging Rail to Rail, Hig...

    Rohs Pdf

    Code: 82-0342

    Texas Instruments
    1+ 10+ 100+ 500+
    £0.453 £0.339 £0.259 £0.169
    In Stock
    Despatched same day
    NE556 Dual Timer
    82-0344

    (MPN:NE556N)

    General Purpose Dual Bipolar Timer, Astable, Monostable Operating Mode, 500kHz Operating Frequency, 100ns Rise Time, 100ns Fall Time, Adjustable Duty Cycle, 5V Trigger Voltage, 4.5V to 16V Supply Voltage, 0°C to +70°C, 14-DIP Case, Low Turn Off Time, Maximum Operating Frequency G...

    Rohs Pdf

    Code: 82-0344

    Texas Instruments
    1+ 10+ 100+ 500+
    £0.231 £0.203 £0.158 £0.101
    In Stock
    Despatched same day
    Icm7555iba CMOS Low Power Timer (smd)
    82-0772

    (MPN:ICM7555IBA)

    General Purpose Timer, Astable, Monostable Operating Mode, 1MHz Operating Frequency, 75ns Rise Time, 75ns Fall Time, Adjustable Duty Cycle, 32V Trigger Voltage, 2V to 18V Supply Voltage, -25°C to +85°C, 8-SOIC Case, Low Supply Current, Extremely Low Input Currents, High Speed Ope...

    Rohs Pdf

    Code: 82-0772

    Intersil
    1+ 10+ 100+ 500+
    £0.68 £0.36 £0.24 £0.22
    In Stock
    Despatched same day
    Icm7555ipa CMOS Low Power Timer
    82-0774

    (MPN:ICM7555IPA)

    General Purpose Timer, Astable, Monostable Operating Mode, 1MHz Operating Frequency, 75ns Rise Time, 75ns Fall Time, Adjustable Duty Cycle, 32V Trigger Voltage, 2V to 18V Supply Voltage, -25°C to +85°C, 8-DIP Case, Low Supply Current, Extremely Low Input Currents, High Speed Oper...

    Rohs Pdf

    Code: 82-0774

    Intersil
    1+ 10+ 100+ 500+
    £0.43 £0.384 £0.304 £0.27
    In Stock
    Despatched same day
    Icm7556ipd CMOS Low Power Dual Timer
    82-0776

    (MPN:ICM7556IPD)

    General Purpose Dual Timer, Astable, Monostable Operating Mode, 1MHz Operating Frequency, 75ns Rise Time, 75ns Fall Time, Adjustable Duty Cycle, 32V Trigger Voltage, 2V to 18V Supply Voltage, -25°C to +85°C, 14-DIP Case, Low Supply Current, Extremely Low Input Currents, High Spee...

    Rohs Pdf

    Code: 82-0776

    Intersil
    1+ 10+ 100+ 500+
    £0.982 £0.938 £0.883 £0.832
    In Stock
    Despatched same day
    Ts556cn Dual CMOS Timer Dil-14
    82-1052

    (MPN:TS556CN)

    Low Power CMOS Timer, Astable, Monostable Operating Mode, 2.7MHz Operating Frequency, 25ns Rise Time, 20ns Fall Time, 4V Trigger Voltage, 2V to 16V Supply Voltage, 0°C to +70°C, 14-DIP Case, Very Low Power Consumption, High Maximum Astable Frequency, High Output Current Capabilit...

    Rohs Pdf

    Code: 82-1052

    ST
    1+ 10+ 100+ 500+
    £0.369 £0.329 £0.317 £0.275
    In Stock
    Despatched same day
    TLC555ID CMOS SOIC-8 Timer
    82-1200

    (MPN:TLC555ID)

    LinMOS 555 Timer, Astable Operating Mode, 2.1MHz Operating Frequency, 20ns Rise Time, 15ns Fall Time, 50% Duty Cycle, 1.66V Trigger Voltage, 2V to 15V Supply Voltage, 0°C to +70°C, SO-8 Case, Capable of Operation in Astable Mode, CMOS Output Capable of Swinging Rail to Rail, High...

    Rohs Pdf

    Code: 82-1200

    Texas Instruments
    1+
    £0.166
    In Stock
    Despatched same day
    Texas Instruments NE556D Linear IC Dual Precision timer SOIC14
    51-7533

    (MPN:NE556D)

    This Texas Instruments NE5556D dual timer IC has a high output current capability, sinking or sourcing 200mA which is TTL compatible. It is able to operate in astable or monostable mode. The output is fully compatible with CMOS, TTL, and MOS. It uses a single supply from 4.5VDC t...

    Pdf

    Code: 51-7533

    Texas Instruments
    1+ 25+ 100+ 500+
    £0.224 £0.204 £0.184 £0.163
    Stocked in European warehouse
    Despatched 5-7 work days

Technical Specification
DeviceFunctionManufacturerPackageOrder code
NE555NSingle timerTIDIL-882-0336
NE555DSingle timerSTSO-882-0338
TS555CNLow power CMOS single timerSTDIL-882-1048
TS555CDLow power CMOS single timerSTSO-882-1050
TLC555CDLinCMOS timerTISO-851-5972
TLC555CPLinCMOS timerTIDIL-882-0342
TLC555IDLinCMOS timerTISO-882-1200
NE555DSingle timer TTL compatibleTISO-851-7528
NE555PSingle timer TTL compatibleTIDIL-851-7529
SA555PSingle timer TTL compatibleTIDIL-851-7531
ICM7555IPASingle low power timerIntersilDIL-882-0774
ICM7555IBASingle low power timerIntersilSO-882-0772
TLC556CNDual LinCMOS timerTIDIL-851-7532
NE556DDual timer TTL compatibleTISO-1451-7533
NE556NDual timerTIDIL-1482-0344
TS556CNLow power CMOS dual timerSTDIL-1482-1052
ICM7556IPDDual low power timerIntersilDIL-1482-0776
View full details
Questions


Question by Ian Simpson | Product code: 82-1200
07 April 2014

QHi, I am looking for surface mount version of the TLC555CP and both the TLC555CD and the TLC555ID look okay. What is the difference between the CD and ID ?
AHi Ian. Thank you for your question. The ID is the industrial temperature range device +40 to 85 degrees. The CD is the standard temperature version 0 to 70 degrees. The difference is only the operation temperature range.

Question by Karlson | Product code: 82-0336
28 May 2012

QDoes the 555 timer come with a chip holder which allows me to solder it onto a PCB?
AThanks for your enquiry. No I'm afraid the chip does not come with a holder, it's sold seperately as product code 22-1720.


Reviews


555 Timer
Reviewed by: John Smith
21 January 2014

A reliable 555 timer chip. I use hundreds of these and find them to be very reliable. Never had one fail. Much better than some of the cheaper 555s being sold by one supplier that I will not name.


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