
The 555 timer is an integrated circuit renowned for its stability and versatility in generating precise time delays or oscillations. It operates under three distinct modes. A monostable multivibrator, often used in timers and debounce circuits, produces a single output pulse of a predefined duration when triggered, returning to its stable state thereafter. An astable multivibrator functions as a continuous oscillator without a stable state, making it suitable for applications like LED flashers and generating pulse-width modulation (PWM) signals for motor control. A bistable multivibrator, resembling a flip-flop, maintains its output in one of two stable states until an external trigger is applied, ideal for latched switches where the output state needs to be preserved even after the input trigger is removed.
The TLC555CP variant utilizes the TI LinCMOSE process, ensuring seamless compatibility with CMOS, TTL, and MOS logic systems, and operates effectively up to 2 MHz. Its high input impedance allows the use of smaller capacitances in timing applications, enhancing accuracy and reducing power consumption over a variety of supply voltages. The LinCMOSE process not only enhances noise immunity but also lowers operational power, which is good for battery-powered devices. This highlights the TLC555’s efficiency and reliability in a wide range of electronic designs. The unique architecture and process technology of the TLC555 shows its practical importance. In precision engineering scenarios, ensuring minimal performance deviation is required. The high input impedance of the TLC555 supports this, reflecting minimalistic design principles and aligning with technological trends focused on efficiency and reliability.

|
Pin Number |
Pin Name |
Description |
|
1 |
GND |
Ground |
|
2 |
THRES |
Start of timing input. TRIG < 1/2 CONT sets output
high and discharge open. |
|
3 |
OUT |
High current timer output signal. |
|
4 |
RESET |
Active low reset input forces output and discharge low |
|
5 |
CONT |
Controls comparator thresholds. Outputs 2/3 VDD and
allows bypass capacitor connection. |
|
6 |
THRES |
End of timing input. THRES > CONT sets output low and
discharges low. |
|
7 |
DISCH |
Open collector output to discharge timing capacitor. |
|
8 |
VDD |
Power-supply voltage. |



The TLC555CP is exemplary in precision timing scenarios. It configures accurate time intervals crucial in digital circuits, such as microcontroller systems. Here, an accurate clock source is needed for synchronization, ensuring minimal timing drifts over time and thereby maintaining system reliability.
The IC excels in creating consistent and repeatable pulses for pulse generation tasks. These pulses are use in data communication systems, encoding data into electrical signals. This consistency is use for developing hardware interfaces, particularly where timing accuracy ensures robust data transmission even under challenging conditions.
Managing events in a specific sequence, the TLC555CP proves valuable in sequential timing within industrial automation processes. Operations must follow a precise order, and employ this IC to create delay sequences that ensure safety protocols and precise control over mechanical actuators.
In generating specific delays, the TLC555CP is reliable and highly effective. For instance, it is used to design delay circuits in audio processing units or timed alerts within security systems. The accurate delay settings offer superior design flexibility and operational dependability.
The TLC555CP’s modulation capabilities, including Pulse Width Modulation (PWM) and pulse position modulation, are noteworthy. PWM is great for controlling motor speeds in robotics, enhancing performance through fine control over motor dynamics. Pulse position modulation is similarly in communication systems, making this IC a preferred choice for engineers targeting high-performance designs.
The IC's capacity for linear ramp generation is great in practical applications like waveform generation for testing and measurement equipment for creating a linear voltage increase. The deterministic output aids in accurate calibration and testing, contributing to reliable and precise signals.
|
Type |
Parameter |
|
Lifecycle Status |
ACTIVE (Last Updated: 3 days ago) |
|
Mount |
Through Hole |
|
Package / Case |
8-DIP (0.300, 7.62mm) |
|
Weight |
440.40842mg |
|
Packaging |
Tube |
|
JESD-609 Code |
e4 |
|
Part Status |
Active |
|
Number of Terminations |
8 |
|
Type |
555 Type, Timer/Oscillator (Single) |
|
Max Power Dissipation |
1W |
|
Terminal Position |
DUAL |
|
Supply Voltage |
5V |
|
Current Rating |
250A |
|
Base Part Number |
TLC555 |
|
Operating Supply Voltage |
2.5V |
|
Supply Voltage-Min (Vsup) |
2V |
|
Factory Lead Time |
8 Weeks |
|
Mounting Type |
Through Hole |
|
Number of Pins |
8 |
|
Operating Temperature |
0°C-70°C |
|
Series |
LinCMOS™ |
|
Pbfree Code |
yes |
|
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
|
ECCN Code |
EAR99 |
|
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
|
Voltage - Supply |
2V-15V |
|
Number of Functions |
1 |
|
Terminal Pitch |
2.54mm |
|
Frequency |
2.1MHz |
|
Pin Count |
8 |
|
Power Supplies |
5V |
|
Operating Supply Current |
360μA |
|
Nominal Supply Current |
360μA |
|
Output Current |
15mA |
|
Number of Timers/Counters |
1 |
|
High Level Output Current |
-10mA |
|
Height |
5.08mm |
|
Width |
6.35mm |
|
REACH SVHC |
No SVHC |
|
RoHS Status |
RoHS3 Compliant |
|
Power Dissipation |
1W |
|
Quiescent Current |
250μA |
|
Supply Current-Max (Isup) |
0.4mA |
|
Low Level Output Current |
100mA |
|
Length |
9.81mm |
|
Thickness |
3.9mm |
|
Radiation Hardening |
No |
|
Lead Free |
Lead Free |
The TLC555CP is designed to minimize power usage, drawing just 1mW at a 5V supply. This aspect becomes valuable in battery-dependent devices, where conserving energy can lead to a noticeable extension of operational life. This power efficiency is beneficial, especially for devices placed in remote or difficult-to-reach locations, as it can reduce the inconvenience and cost of frequent battery changes, making it a practical choice for conscious about maintenance efforts.
Operating primarily in the astable mode, the TLC555CP generates continuous square waveforms. This capability provides timing, frequency generation, and clock pulse functionalities, making it a versatile component in a wide range of electronic circuits. In practical engineering scenarios, utilizing astable circuits to achieve precise time delays stands as a proven method, showcasing the device's utility in applications requiring timing accuracy.
The TLC555CP is equipped with CMOS output featuring a rail-to-rail swing, which ensures efficient driving of digital logic circuits necessitating sharp voltage transitions. This effective output configuration is recognized for minimizing power losses while maintaining robust signal integrity.
TLC555CP boasts of its impressive high output current capacity, capable of sourcing 10mA and sinking up to 100mA. This robust current handling ability directly drives loads like LEDs and relays, providing with the flexibility to manage larger loads without additional interfacing hardware. Those engaged in hands-on electronic design can appreciate how this feature simplifies circuit design and broadens application possibilities.
The TLC555CP’s compatibility with CMOS, TTL, and MOS technologies makes it highly adaptable, easily integrating into environments that utilize mixed technologies. This broad compatibility streamlines the design process, as it allows seamless interaction with various components, ultimately saving development time and effort.
Designed with minimized supply current spikes, the TLC555CP maintains stable operation, reducing potential interference and disturbances on the power line. This feature contributes to overall system stability, which holds importance in precision-sensitive applications. Effective power management strategies often hinge on limiting transient currents to maintain the integrity of the system's performance.
The microcontroller reliably operates on a single power supply ranging from 2V to 15V. This wide voltage range increases its versatility across different power environments, enabling its use in both low-voltage and higher-power systems. Such adaptability allows the TLC555CP to meet various application needs with ease, from simple battery-operated gadgets to more complex industrial equipment.
Being fully compatible with the NE555 pinout, the TLC555CP serves as a drop-in replacement for existing NE555 designs. This pin-for-pin compatibility offers a smooth upgrade path, enhancing performance without the need for redesigning circuit boards, facilitating easier and more cost-effective system improvements.
TLC555CP showcases high ESD protection, with a rating of 2000V per MIL-STD-883C, Method 3015.2, ensuring resilience against electrostatic discharge. This durability is use in environments prone to ESD events, helping maintain the device’s longevity and reliability. Many in the field of sensitive electronics rely on components with high ESD ratings to mitigate the risks associated with electrostatic discharges.
This microcontroller meets automotive qualification standards, indicating its reliability and robustness for use in demanding automotive environments. Such qualifications imply adherence to rigorous performance and durability standards, necessary for automotive electronics. Design engineers in the automotive sector benefit from incorporating components that ensure sustained operation under varying temperatures and mechanical stresses, which are common in vehicle systems.

|
Specification |
LMC555CN |
TLC555CP |
|
Rohs Code |
No |
Yes |
|
Part Life Cycle Code |
Transferred |
Active |
|
Package Description |
DIP-8 |
DIP, DIP8, .3 |
|
Reach Compliance Code |
not_compliant |
compliant |
|
ECCN Code |
EAR99 |
EAR99 |
|
HTS Code |
8542.39.00.01 |
8542.39.00.01 |
|
Analog IC - Other Type |
PULSE; RECTANGULAR |
PULSE; RECTANGULAR |
|
JESD-30 Code |
R-PDIP-T8 |
R-PDIP-T8 |
|
JESD-609 Code |
e0 |
e4 |
|
Length |
9.817 mm |
9.81 mm |
|
Moisture Sensitivity Level |
1 |
(Not specified) |
|
Number of Functions |
1 |
1 |
|
Number of Terminals |
8 |
8 |
|
Operating Temperature-Max |
85 °C |
70 °C |
|
Operating Temperature-Min |
-40 °C |
(Not specified) |
|
Output Frequency-Max |
3 MHz |
1.2 MHz |
|
Package Body Material |
PLASTIC/EPOXY |
PLASTIC/EPOXY |
|
Package Code |
DIP |
DIP |
|
Package Equivalence Code |
DIP8, .3 |
DIP8, .3 |
|
Package Shape |
RECTANGULAR |
RECTANGULAR |
|
Package Style |
IN-LINE |
IN-LINE |
|
Peak Reflow Temperature (Cel) |
260 |
NOT SPECIFIED |
|
Power Supplies |
5 V |
5 V |
|
Qualification Status |
Not Qualified |
Not Qualified |
|
Seated Height-Max |
5.08 mm |
5.08 mm |
|
Supply Voltage-Max (Vsup) |
12 V |
15 V |
|
Supply Voltage-Min (Vsup) |
1.5 V |
2 V |
|
Supply Voltage-Nom (Vsup) |
5 V |
5 V |
|
Surface Mount |
NO |
NO |
|
Technology |
CMOS |
CMOS |
|
Temperature Grade |
INDUSTRIAL |
COMMERCIAL |
|
Terminal Finish |
Tin/Lead (Sn/Pb) |
Nickel/Palladium/Gold (Ni/Pd/Au) |
|
Terminal Form |
THROUGH-HOLE |
THROUGH-HOLE |
|
Terminal Pitch |
2.54 mm |
2.54 mm |
|
Terminal Position |
DUAL |
DUAL |
|
Time@Peak Reflow Temperature-Max (s) |
40 |
NOT SPECIFIED |
|
Width |
7.62 mm |
7.62 mm |
|
Base Number Matches |
2 |
1 |
|
Pb-free Code |
(Not specified) |
Yes |
|
Part Package Code |
DIP |
|
|
Pin Count |
8 |
|
|
Supply Current-Max (Isup) |
0.4 mA |
|
Part
Number |
Description |
Manufacturer |
|
LMC555ENG |
PULSE; RECTANGULAR, 3MHZ, TIMER, PDIP8, PLASTIC, DIP-8 |
Texas Instruments |
|
MC14558P1G |
Timer Circuit, 8 LEAD PDIP, 50-TUBE |
onsemi |
|
MC14558P1 |
1 Func, BIPolar, PDIP8, PLASTIC, DIP-8 |
Motorola Semiconductor Products |
|
ICM7555IPA |
1 Func, 0.1MHz, CMOS, PDIP8 |
Harris Semiconductor |
|
LMC555C/NOPB |
IC PULSE; RECTANGULAR, 3 MHz, TIMER, PDIP8, ROHS
COMPLIANT, DIP-8, Analog Waveform Generation Function |
National Semiconductor Corporation |
|
HA17555PS-E |
Timer, BIPOLAR, DIP-8, PLASTIC |
Renesas Electronics Corporation |
|
ICM7555IUA |
1 Func, 0.5MHz, CMOS, CDIP8, CERDIP-8 |
Maxim Integrated Products |
|
MC14545P1G |
Timer Circuit, 8 LEAD PDIP, 50-TUBE |
onsemi |
|
LMC555C/NOPB |
IC PULSE; RECTANGULAR, TIMER, PDIP8, PLASTIC, DIP-8,
Analog Waveform Generation Function |
National Semiconductor Corporation |
|
TLC555CPE4 |
Texas Instruments 8-DIP (0.300, 7.62mm) 8 250 μA 100 mA
2.1MHz 5 V 8 |
Texas Instruments |
|
TLC555IP |
Texas Instruments 8-DIP (0.300, 7.62mm) 8 250 μA 100 mA
2.1MHz 3 V 8 |
Texas Instruments |
|
NE555P |
Texas Instruments 8-DIP (0.300, 7.62mm) 8 15 mA 200 mA
100kHz 5 V 8 |
Texas Instruments |
|
MC1455D |
ON Semiconductor PDIP 8 - 200 mA - 5 V 8 |
ON Semiconductor |
Texas Instruments Inc. (TI), based in Dallas, Texas, is recognized worldwide for its expertise in semiconductor manufacturing. The company excels in creating and producing analog chips and embedded processors, supporting industries such as automotive, industrial, personal electronics, and communications equipment. TI showcases its passion for innovation through a diverse range of over 45,000 semiconductor products. Constant advancements fuel the industry's growth, with TI's investment in research and development keeping it ahead in technological progress. For example, their progress in power management and wireless connectivity solutions addresses the intricate and interconnected needs of today's world. Texas Instruments Inc. distinguishes itself in the global semiconductor arena through its innovative drive, ethical practices, and strategic market approach. Its ongoing contributions and forward-looking vision ensure that it continues to play a role in advancing technology and addressing future challenges.
Copper Bond Wire Revision A 04/Dec/2013.pdf
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NA555, NE555, SA555, SE555.pdf
The TLC555 is a monolithic timing circuit manufactured using the TI LinCMOSE process. It is exceptionally versatile and applies to various timing, pulse generation, and oscillator functions. Others frequently resort to it for creating precise timer delays and pulse width modulation. Understanding its different configurations allows you to enhance circuit designs and improve overall system functionality, showcasing its adaptability.
The TLC555CP operates reliably at a minimum temperature of -40°C. This capacity ensures performance in extreme environmental conditions, making the TLC555CP suitable for industrial and automotive sectors. Others often consider such temperature parameters for durability and efficiency in designs exposed to harsh temperature variations.
The TLC555CP requires a minimum supply voltage of 2V, making it ideal for battery-operated devices and energy-efficient systems. Implementing components with low power needs enhances the longevity and sustainability of portable electronic devices, reflecting a growing emphasis on energy conservation in modern electronics.
The High-Level Output Current for the TLC555CP is 100 mA, indicating its capacity to drive loads effectively. This capability benefits compact and efficient designs in consumer electronics. The ability to manage significant output currents without compromising performance.
The operating supply current for the TLC555CP is 250 μA. This small current requirement highlights its efficacy in low-power applications. Engineers designing embedded systems value such low operating currents to achieve longer battery life and reduced overall power consumption, crucial aspects in the development of green technologies.
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