Programmable timers and oscillators range from assisting microprocessors with time-related tasks to providing stable clock signals to synchronise individual systems. They enable precise time measurement in microcontrollers or provide stable clock signals in communication systems.

Programmable Timer: Indicates the maximum value that a timer can count, usually expressed as a number of bits. For example, an 8-bit or 16-bit counter. Programmable timers usually support different modes of operation, such as single trigger, cycle counting, timed interrupt, and so on. The ability to control the output of the timer, usually used to trigger other events or devices.
Role of programmable timer: time measurement, timing control, interrupt generation.
Application areas of programmable timers: microcontroller and microprocessor systems, communication systems, industrial automation


Oscillator: Indicates the frequency of the signal generated by an oscillator, usually measured in Hertz. The stability of an oscillator determines whether the signal it produces is accurate and reliable. Oscillators can produce different types of output waveforms, such as square waves, sine waves, triangular waves, etc.
Oscillator role: clock signal generation, frequency standard. 
Application areas of oscillators: computer and data storage devices, electronic measuring instruments, communication systems.


Common Brands:

ON Semiconductor

STMicroelectronics

Renesas Electronics America