Clock/Timing - Programmable Timers and Oscillators

Category Introduction

Devices that can be set to provide timing pulses at a specified frequency.

Product List

23120 Items
PDF Mfr Part # Quantity
Available
UnitPrice RFQ Series Packaging Product StatusTypeCountFrequencyVoltage - SupplyCurrent - SupplyOperating TemperaturePackage / CaseSupplier Device PackageMounting Type
NE555DR
NE555DR
IC OSC SGL TIMER 100KHZ 8-SOIC
Texas Instruments
2,030 $0.45
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-100kHz4.5V ~ 16V10 mA0°C ~ 70°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
NA555DR
NA555DR
IC OSC SGL TIMER 100KHZ 8-SOIC
Texas Instruments
935 $0.44
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-100kHz4.5V ~ 16V10 mA-40°C ~ 105°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
CD4541BM96
CD4541BM96
IC OSC PROG TIMER 100KHZ 14SOIC
Texas Instruments
698 $0.56
Tape & Reel (TR) ActiveProgrammable Timer65536100kHz3V ~ 20V--55°C ~ 125°C14-SOIC (0.154", 3.90mm Width)14-SOICSurface Mount
HEF4541BT-Q100Y
HEF4541BT-Q100Y
IC OSC PROG TIMER 36MHZ 14SOIC
Nexperia USA Inc.
1,343 $0.72
Automotive, AEC-Q100, LinCMOS™ Tape & Reel (TR) ActiveProgrammable Timer-36MHz3V ~ 15V500 µA-40°C ~ 85°C14-SOIC (0.154", 3.90mm Width)14-SOSurface Mount
SE555P
SE555P
IC OSC SINGLE TIMER 100KHZ 8-DIP
Texas Instruments
2,072 $0.47
Tube Active555 Type, Timer/Oscillator (Single)-100kHz4.5V ~ 18V10 mA-55°C ~ 125°C8-DIP (0.300", 7.62mm)8-PDIPThrough Hole
NE555P
NE555P
IC OSC SINGLE TIMER 100KHZ 8-DIP
Texas Instruments
1,404 $0.48
Tube Active555 Type, Timer/Oscillator (Single)-100kHz4.5V ~ 16V10 mA0°C ~ 70°C8-DIP (0.300", 7.62mm)8-PDIPThrough Hole
TLC555QDRQ1
TLC555QDRQ1
IC OSC SGL TIMER 2.1MHZ 8-SOIC
Texas Instruments
31 $1.05
Automotive, AEC-Q100, LinCMOS™ Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-2.1MHz2V ~ 15V360 µA-40°C ~ 125°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
LM555CMM/NOPB
LM555CMM/NOPB
IC OSC SGL TIMER 100KHZ 8VSSOP
Texas Instruments
378 $1.40
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-100kHz4.5V ~ 16V10 mA0°C ~ 70°C8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-VSSOPSurface Mount
LMC555CTPX/NOPB
LMC555CTPX/NOPB
IC OSC SINGLE TIMER 3MHZ 8-USMD
Texas Instruments
4 $1.45
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-3MHz1.5V ~ 15V150 µA-40°C ~ 85°C8-UFBGA8-uSMD (1.41x1.44)Surface Mount
MIC1555YM5-TR
MIC1555YM5-TR
IC OSC SINGLE TIMER 5MHZ SOT23-5
Microchip Technology
190 $1.05
IttyBitty® Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-5MHz2.7V ~ 18V350 µA-40°C ~ 85°CSC-74A, SOT-753SOT-23-5Surface Mount
TPL5010DDCT
TPL5010DDCT
IC OSC PROG TIMER TSOT23-6
Texas Instruments
612 $1.24
Tape & Reel (TR) ActiveProgrammable Timer--1.8V ~ 5V35 nA-40°C ~ 105°CSOT-23-6 Thin, TSOT-23-6SOT-23-THINSurface Mount
TS555IDTTR
TS555IDTTR
IC OSC SINGLE TIMER 2.7MHZ 8SOIC
STMicroelectronics
411 $1.66
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-2.7MHz2V ~ 16V65 µA-40°C ~ 125°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
MIC1557YM5-TR
MIC1557YM5-TR
IC OSC SINGLE TIMER 5MHZ SOT23-5
Microchip Technology
334 $1.25
IttyBitty® Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-5MHz2.7V ~ 18V350 µA-40°C ~ 85°CSC-74A, SOT-753SOT-23-5Surface Mount
TLC555CP
TLC555CP
IC OSC SINGLE TIMER 2.1MHZ 8-DIP
Texas Instruments
743 $0.95
LinCMOS™ Tube Active555 Type, Timer/Oscillator (Single)-2.1MHz2V ~ 15V360 µA0°C ~ 70°C8-DIP (0.300", 7.62mm)8-PDIPThrough Hole
ICM7555IPAZ
ICM7555IPAZ
IC OSC SINGLE TIMER 1MHZ 8DIP
Renesas Electronics America Inc
889 $0.96
Tube Active555 Type, Timer/Oscillator (Single)-1MHz2V ~ 18V60 µA-25°C ~ 85°C8-DIP (0.300", 7.62mm)8-PDIPThrough Hole
ICM7555ISA+T
ICM7555ISA+T
IC OSC SGL TIMER 500KHZ 8-SOIC
Analog Devices Inc./Maxim Integrated
19 $3.20
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Single)-500kHz2V ~ 16.5V30 µA-20°C ~ 85°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
TLC551CD
TLC551CD
IC OSC SGL TIMER 1.8MHZ 8-SOIC
Texas Instruments
99 $2.39
Tube Active555 Type, Timer/Oscillator (Single)-1.8MHz1V ~ 15V360 µA0°C ~ 70°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount
ICM7556ISD+T
ICM7556ISD+T
IC OSC TIMER DUAL 500KHZ 14-SOIC
Analog Devices Inc./Maxim Integrated
203 $4.85
Tape & Reel (TR) Active555 Type, Timer/Oscillator (Dual)-500kHz2V ~ 16.5V60 µA-20°C ~ 85°C14-SOIC (0.154", 3.90mm Width)14-SOICSurface Mount
LTC6905IS5-96#TRMPBF
LTC6905IS5-96#TRMPBF
IC OSC SILICON 96MHZ TSOT23-5
Analog Devices Inc.
190 $4.39
Tape & Reel (TR) ActiveOscillator, Silicon-96MHz2.7V ~ 5.5V8 mA-40°C ~ 85°CSOT-23-5 Thin, TSOT-23-5TSOT-23-5Surface Mount
ICM7555ESA+
ICM7555ESA+
IC OSC SGL TIMER 500KHZ 8-SOIC
Analog Devices Inc./Maxim Integrated
43 $2.98
Tube Active555 Type, Timer/Oscillator (Single)-500kHz2V ~ 16.5V30 µA-40°C ~ 85°C8-SOIC (0.154", 3.90mm Width)8-SOICSurface Mount

About Programmable Timers & Programmable Oscillators

What are Programmable Timers & Programmable Oscillators?

Programmable Timers

Programmable timers are specialized integrated circuits (ICs) designed to generate precise timing sequences and control the duration of electronic events. These devices are integral to the clock and timing ICs industry, offering flexibility in setting time intervals for various applications. They operate by counting clock pulses from an internal or external oscillator, allowing users to program specific time delays or intervals. This programmability enables them to manage tasks such as turning devices on or off, generating pulse-width modulation signals, or synchronizing processes in complex systems.

Programmable Oscillators

Programmable oscillators are versatile clock generators used in electronic circuits to produce precise frequency signals. Unlike fixed-frequency oscillators, programmable oscillators can be configured to generate a wide range of frequencies, making them adaptable to various applications. They operate by using a phase-locked loop (PLL) or a direct digital synthesis (DDS) technique to produce a stable output frequency from a reference clock. This flexibility allows for easy adjustments to meet specific timing requirements, making them an essential component in modern electronic systems.

Types of Programmable Timers

1. Monostable Timers

Monostable timers, also known as one-shot timers, are used to generate a single pulse of a specified duration in response to an external trigger. They are ideal for applications requiring a precise time delay, such as debouncing switches or generating time-limited signals.

2. Astable Timers

Astable timers continuously oscillate between two states, producing a square wave output without requiring an external trigger. They are commonly used in applications needing a continuous clock signal, such as in flashing lights or tone generation.

3. Bistable Timers

Bistable timers, or flip-flops, maintain their state until an external trigger changes it. They are used in applications requiring a stable on/off state, such as memory storage or toggle switches.

4. Watchdog Timers

Watchdog timers are designed to reset a system if it becomes unresponsive. They are crucial in safety-critical applications, ensuring that systems remain operational by triggering a reset if a fault is detected.

Types of Programmable Oscillators

1. Voltage-Controlled Oscillators (VCOs)

Voltage-controlled oscillators are a type of programmable oscillator where the output frequency is adjusted by varying the input voltage. They are commonly used in applications requiring rapid frequency changes, such as in radio frequency (RF) communication systems. VCOs are known for their simplicity and wide tuning range.

2. Temperature-Compensated Crystal Oscillators (TCXOs)

TCXOs are designed to maintain a stable frequency output across varying temperature conditions. They incorporate temperature compensation techniques to minimize frequency drift, making them ideal for applications where environmental stability is crucial, such as in GPS devices and mobile communications.

3. Digitally Controlled Oscillators (DCOs)

Digitally controlled oscillators use digital signals to adjust the output frequency. They offer high precision and are often used in digital signal processing (DSP) applications. DCOs are favored for their ability to integrate easily with digital systems and provide precise frequency control.

How to choose Programmable Timers?

When selecting programmable timers, consider the following key parameters:

  • Timing Precision: Evaluate the accuracy and resolution of the timer to ensure it meets the application's requirements.
  • Operating Voltage: Ensure compatibility with the system's power supply to avoid malfunction.
  • Temperature Range: Choose a timer that can operate within the environmental conditions of the application.
  • Package Type: Consider the physical size and mounting style for integration into the existing design.
  • Power Consumption: Assess the power efficiency, especially for battery-operated devices.

To evaluate product quality and reliability, review supplier datasheets, customer reviews, and industry certifications. Consider environmental factors such as humidity and electromagnetic interference, and ensure proper installation to prevent damage or signal distortion.

How to choose Programmable Oscillators?

When selecting a programmable oscillator, consider the following key parameters:

  • Frequency Range: Ensure the oscillator covers the required frequency range for your application.
  • Phase Noise: Lower phase noise is critical for high-performance applications, such as RF communication.
  • Stability: Evaluate the temperature stability and aging characteristics to ensure long-term reliability.
  • Supply Voltage: Match the oscillator's supply voltage with your system's power requirements.
  • Package Type: Consider the physical size and mounting type suitable for your design.

To evaluate product quality and reliability, review supplier datasheets, customer reviews, and industry certifications. Consider environmental factors such as temperature range and humidity, and ensure proper installation to prevent mechanical stress and electromagnetic interference.

Applications of Programmable Timers & Programmable Oscillators

Programmable Timers and Programmable Oscillators are pivotal components in the realm of integrated circuits, offering precision and flexibility in timing and frequency applications. These devices are integral to a myriad of industries, providing essential functions that enhance the performance and efficiency of electronic systems. Below, we explore their applications across various sectors.

1. Telecommunications

In the telecommunications industry, programmable timers and oscillators are crucial for maintaining synchronization across networks. They ensure accurate timing for data transmission, which is vital for the seamless operation of mobile networks, satellite communications, and internet services. These components help in managing bandwidth and reducing latency, thereby enhancing the quality of service.

2. Automotive Industry

Within the automotive sector, programmable timers and oscillators are employed in advanced driver-assistance systems (ADAS), infotainment systems, and engine control units (ECUs). They facilitate precise timing for sensor data processing, improve the accuracy of navigation systems, and ensure the reliable operation of safety features such as adaptive cruise control and collision avoidance systems.

3. Consumer Electronics

Programmable timers and oscillators are ubiquitous in consumer electronics, from smartphones to smart home devices. They provide clock signals for processors, manage power consumption, and enable features like alarm clocks and timers in household appliances. Their programmability allows for customization to meet specific device requirements, enhancing user experience and device functionality.

4. Industrial Automation

In industrial automation, these components are used in programmable logic controllers (PLCs), robotics, and process control systems. They ensure precise timing for operations, synchronize processes, and manage the timing of control signals. This precision is crucial for optimizing production lines, reducing downtime, and improving overall efficiency in manufacturing environments.

5. Medical Devices

Programmable timers and oscillators play a vital role in medical devices, such as pacemakers, diagnostic equipment, and infusion pumps. They provide the necessary timing for monitoring and control functions, ensuring the accurate delivery of therapies and the reliable operation of life-supporting systems. Their reliability and precision are critical in maintaining patient safety and improving healthcare outcomes.

In conclusion, programmable timers and oscillators are indispensable in modern technology, driving advancements across various industries by providing precise and adaptable timing solutions. Their versatility and reliability continue to support innovation and efficiency in electronic systems worldwide.